標籤
PostgreSQL , pgbench , tpcb , tpcc , tpch
背景
https://help.aliyun.com/knowledge_detail/64950.html
阿里雲ESSD提供了單盤32TB容量，100萬IOPS，4GB/s讀寫吞吐的能力，單臺ECS可以掛載16塊ESSD盤，組成512 TB的大容量存儲。非常適合數據庫這類IO密集應用。
PostgreSQL 作爲一款優秀的企業級開源數據庫產品，阿里雲ESSD的加入，可以帶給用戶什麼樣的體驗呢？
《PostgreSQL 11 100億 tpcb 性能 on ECS》
《PostgreSQL 11 tpcc 測試(103萬tpmC on ECS) - use sysbench-tpcc by Percona-Lab》
《(TPC-H測試 SF=10,SF=200) PostgreSQL 11 vs 10 vs Deepgreen》
ESSD雲盤部署
parted -s /dev/vdb mklabel gpt
parted -s /dev/vdb mkpart primary 1MiB 100%
mkfs.ext4 /dev/vdb1 -m 0 -O extent,uninit_bg -E lazy_itable_init=1 -T largefile -L data01
mkdir /data01
vi /etc/fstab
LABEL=data01 /data01 ext4 defaults,noatime,nodiratime,nodelalloc,barrier=0,data=writeback 0 0
mount -a
fsync RT測試
1 ECS本地SSD
使用PostgreSQL提供的pg_test_fsync進行測試
5 seconds per test
O_DIRECT supported on this platform for open_datasync and open_sync.
Compare file sync methods using one 8kB write:
(in wal_sync_method preference order, except fdatasync is Linux's default)
open_datasync 46355.824 ops/sec 22 usecs/op
fdatasync 39213.835 ops/sec 26 usecs/op
fsync 35912.478 ops/sec 28 usecs/op
fsync_writethrough n/a
open_sync 42426.737 ops/sec 24 usecs/op
Compare file sync methods using two 8kB writes:
(in wal_sync_method preference order, except fdatasync is Linux's default)
open_datasync 17109.945 ops/sec 58 usecs/op
fdatasync 26316.089 ops/sec 38 usecs/op
fsync 24202.679 ops/sec 41 usecs/op
fsync_writethrough n/a
open_sync 15760.721 ops/sec 63 usecs/op
Compare open_sync with different write sizes:
(This is designed to compare the cost of writing 16kB in different write
open_sync sizes.)
1 * 16kB open_sync write 29108.820 ops/sec 34 usecs/op
2 * 8kB open_sync writes 15674.805 ops/sec 64 usecs/op
4 * 4kB open_sync writes 9942.061 ops/sec 101 usecs/op
8 * 2kB open_sync writes 5637.484 ops/sec 177 usecs/op
16 * 1kB open_sync writes 3076.057 ops/sec 325 usecs/op
Test if fsync on non-write file descriptor is honored:
(If the times are similar, fsync() can sync data written on a different
descriptor.)
write, fsync, close 32581.863 ops/sec 31 usecs/op
write, close, fsync 32512.798 ops/sec 31 usecs/op
Non-sync'ed 8kB writes:
write 350232.219 ops/sec 3 usecs/op
2 ESSD
5 seconds per test
O_DIRECT supported on this platform for open_datasync and open_sync.
Compare file sync methods using one 8kB write:
(in wal_sync_method preference order, except fdatasync is Linux's default)
open_datasync 8395.592 ops/sec 119 usecs/op
fdatasync 7722.692 ops/sec 129 usecs/op
fsync 5619.389 ops/sec 178 usecs/op
fsync_writethrough n/a
open_sync 5685.669 ops/sec 176 usecs/op
Compare file sync methods using two 8kB writes:
(in wal_sync_method preference order, except fdatasync is Linux's default)
open_datasync 3858.783 ops/sec 259 usecs/op
fdatasync 5396.356 ops/sec 185 usecs/op
fsync 4214.546 ops/sec 237 usecs/op
fsync_writethrough n/a
open_sync 3025.366 ops/sec 331 usecs/op
Compare open_sync with different write sizes:
(This is designed to compare the cost of writing 16kB in different write
open_sync sizes.)
1 * 16kB open_sync write 4506.749 ops/sec 222 usecs/op
2 * 8kB open_sync writes 3099.963 ops/sec 323 usecs/op
4 * 4kB open_sync writes 1763.684 ops/sec 567 usecs/op
8 * 2kB open_sync writes 429.923 ops/sec 2326 usecs/op
16 * 1kB open_sync writes 198.005 ops/sec 5050 usecs/op
Test if fsync on non-write file descriptor is honored:
(If the times are similar, fsync() can sync data written on a different
descriptor.)
write, fsync, close 5393.927 ops/sec 185 usecs/op
write, close, fsync 5470.240 ops/sec 183 usecs/op
Non-sync'ed 8kB writes:
write 385505.858 ops/sec 3 usecs/op
fio 專業IO測試
測試項
vi test
[global]
thread
numjobs=64
ramp_time=6
size=10g
exitall
time_based
runtime=180
group_reporting
randrepeat=0
norandommap
bs=8k
rwmixwrite=35
[rw-rand-libaio-mysql-ext4]
stonewall
direct=1
iodepth=16
iodepth_batch=8
iodepth_low=8
iodepth_batch_complete=8
rw=randrw
ioengine=libaio
filename=/data01/ext4
[rw-seq-libaio-mysql-ext4]
stonewall
direct=1
iodepth=16
iodepth_batch=8
iodepth_low=8
iodepth_batch_complete=8
rw=rw
ioengine=libaio
filename=/data01/ext4
[rw-rand-sync-pgsql-ext4]
stonewall
direct=0
rw=randrw
ioengine=sync
filename=/data01/ext4
[rw-seq-sync-pgsql-ext4]
stonewall
direct=0
rw=rw
ioengine=sync
filename=/data01/ext4
fio test --output ./cfq-raw.log
1 ECS本地SSD
rw-rand-libaio-mysql-ext4: (g=0): rw=randrw, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=libaio, iodepth=16
...
rw-seq-libaio-mysql-ext4: (g=1): rw=rw, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=libaio, iodepth=16
...
rw-rand-sync-pgsql-ext4: (g=2): rw=randrw, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=sync, iodepth=1
...
rw-seq-sync-pgsql-ext4: (g=3): rw=rw, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=sync, iodepth=1
...
fio-3.1
Starting 256 threads
rw-rand-libaio-mysql-ext4: (groupid=0, jobs=64): err= 0: pid=27005: Tue Sep 18 15:18:42 2018
read: IOPS=146k, BW=1140MiB/s (1196MB/s)(200GiB/180004msec)
slat (usec): min=22, max=114828, avg=2266.17, stdev=2520.66
clat (nsec): min=1759, max=115061k, avg=2316672.58, stdev=2575502.75
lat (usec): min=70, max=164337, avg=4582.93, stdev=3639.95
clat percentiles (usec):
| 1.00th=[ 603], 5.00th=[ 1352], 10.00th=[ 1549], 20.00th=[ 1713],
| 30.00th=[ 1811], 40.00th=[ 1876], 50.00th=[ 1942], 60.00th=[ 2008],
| 70.00th=[ 2057], 80.00th=[ 2114], 90.00th=[ 2245], 95.00th=[ 2376],
| 99.00th=[16581], 99.50th=[19792], 99.90th=[27919], 99.95th=[32900],
| 99.99th=[49021]
bw ( KiB/s): min= 6000, max=42120, per=1.54%, avg=17968.83, stdev=2125.54, samples=22976
iops : min= 750, max= 5265, avg=2245.75, stdev=265.70, samples=22976
write: IOPS=78.6k, BW=614MiB/s (644MB/s)(108GiB/180004msec)
slat (usec): min=24, max=114826, avg=2266.44, stdev=2515.63
clat (nsec): min=1056, max=114853k, avg=2225812.28, stdev=2478372.79
lat (usec): min=43, max=164125, avg=4492.34, stdev=3574.60
clat percentiles (usec):
| 1.00th=[ 19], 5.00th=[ 1123], 10.00th=[ 1500], 20.00th=[ 1696],
| 30.00th=[ 1795], 40.00th=[ 1876], 50.00th=[ 1942], 60.00th=[ 1991],
| 70.00th=[ 2057], 80.00th=[ 2114], 90.00th=[ 2212], 95.00th=[ 2311],
| 99.00th=[16057], 99.50th=[19268], 99.90th=[27132], 99.95th=[31327],
| 99.99th=[47449]
bw ( KiB/s): min= 3235, max=22265, per=1.54%, avg=9680.55, stdev=1180.58, samples=22976
iops : min= 404, max= 2783, avg=1209.72, stdev=147.58, samples=22976
lat (usec) : 2=0.01%, 4=0.06%, 10=0.04%, 20=0.33%, 50=0.37%
lat (usec) : 100=0.16%, 250=0.21%, 500=0.37%, 750=0.59%, 1000=0.84%
lat (msec) : 2=56.76%, 4=36.91%, 10=0.82%, 20=2.08%, 50=0.44%
lat (msec) : 100=0.01%, 250=0.01%
cpu : usr=0.50%, sys=82.17%, ctx=8285760, majf=0, minf=0
IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.1%, 16=103.4%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=0.0%, 8=100.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=0.0%, 8=100.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwt: total=26268555,14152416,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=16
rw-seq-libaio-mysql-ext4: (groupid=1, jobs=64): err= 0: pid=27075: Tue Sep 18 15:18:42 2018
read: IOPS=147k, BW=1150MiB/s (1206MB/s)(202GiB/180004msec)
slat (usec): min=22, max=97402, avg=2245.77, stdev=2561.30
clat (nsec): min=1597, max=97414k, avg=2299719.84, stdev=2622137.64
lat (usec): min=37, max=121819, avg=4545.57, stdev=3688.31
clat percentiles (usec):
| 1.00th=[ 529], 5.00th=[ 1287], 10.00th=[ 1516], 20.00th=[ 1680],
| 30.00th=[ 1778], 40.00th=[ 1844], 50.00th=[ 1909], 60.00th=[ 1975],
| 70.00th=[ 2040], 80.00th=[ 2114], 90.00th=[ 2212], 95.00th=[ 2376],
| 99.00th=[16712], 99.50th=[19792], 99.90th=[28181], 99.95th=[32375],
| 99.99th=[47973]
bw ( KiB/s): min= 6822, max=34080, per=1.53%, avg=18044.54, stdev=2237.76, samples=22979
iops : min= 852, max= 4260, avg=2255.24, stdev=279.74, samples=22979
write: IOPS=79.3k, BW=620MiB/s (650MB/s)(109GiB/180004msec)
slat (usec): min=24, max=97396, avg=2247.37, stdev=2563.13
clat (nsec): min=965, max=97414k, avg=2198816.49, stdev=2518690.40
lat (usec): min=40, max=121817, avg=4446.27, stdev=3625.49
clat percentiles (usec):
| 1.00th=[ 17], 5.00th=[ 996], 10.00th=[ 1434], 20.00th=[ 1647],
| 30.00th=[ 1762], 40.00th=[ 1844], 50.00th=[ 1909], 60.00th=[ 1958],
| 70.00th=[ 2024], 80.00th=[ 2089], 90.00th=[ 2180], 95.00th=[ 2278],
| 99.00th=[16188], 99.50th=[19268], 99.90th=[27132], 99.95th=[31327],
| 99.99th=[46400]
bw ( KiB/s): min= 3073, max=18400, per=1.53%, avg=9720.67, stdev=1243.91, samples=22979
iops : min= 384, max= 2300, avg=1214.75, stdev=155.52, samples=22979
lat (nsec) : 1000=0.01%
lat (usec) : 2=0.01%, 4=0.09%, 10=0.06%, 20=0.50%, 50=0.28%
lat (usec) : 100=0.13%, 250=0.20%, 500=0.54%, 750=0.71%, 1000=0.98%
lat (msec) : 2=61.58%, 4=31.54%, 10=0.78%, 20=2.16%, 50=0.46%
lat (msec) : 100=0.01%
cpu : usr=0.50%, sys=81.14%, ctx=8462673, majf=0, minf=0
IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.1%, 16=103.3%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=0.0%, 8=100.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=0.0%, 8=100.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwt: total=26505435,14277757,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=16
rw-rand-sync-pgsql-ext4: (groupid=2, jobs=64): err= 0: pid=27150: Tue Sep 18 15:18:42 2018
read: IOPS=228k, BW=1785MiB/s (1872MB/s)(314GiB/180002msec)
clat (nsec): min=945, max=14282k, avg=5002.95, stdev=48977.41
lat (nsec): min=1247, max=14282k, avg=5374.56, stdev=49037.52
clat percentiles (usec):
| 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 4],
| 30.00th=[ 4], 40.00th=[ 4], 50.00th=[ 4], 60.00th=[ 4],
| 70.00th=[ 4], 80.00th=[ 4], 90.00th=[ 5], 95.00th=[ 5],
| 99.00th=[ 12], 99.50th=[ 90], 99.90th=[ 212], 99.95th=[ 586],
| 99.99th=[ 2180]
bw ( KiB/s): min= 4824, max=77689, per=1.55%, avg=28302.49, stdev=3542.33, samples=22979
iops : min= 603, max= 9711, avg=3537.39, stdev=442.79, samples=22979
write: IOPS=123k, BW=961MiB/s (1008MB/s)(169GiB/180002msec)
clat (usec): min=2, max=216155, avg=504.28, stdev=1314.99
lat (usec): min=2, max=216155, avg=504.72, stdev=1315.00
clat percentiles (usec):
| 1.00th=[ 8], 5.00th=[ 77], 10.00th=[ 285], 20.00th=[ 392],
| 30.00th=[ 408], 40.00th=[ 420], 50.00th=[ 469], 60.00th=[ 519],
| 70.00th=[ 545], 80.00th=[ 562], 90.00th=[ 586], 95.00th=[ 603],
| 99.00th=[ 685], 99.50th=[ 2089], 99.90th=[15270], 99.95th=[23462],
| 99.99th=[46924]
bw ( KiB/s): min= 2661, max=42215, per=1.55%, avg=15240.76, stdev=1812.18, samples=22979
iops : min= 332, max= 5276, avg=1904.70, stdev=226.51, samples=22979
lat (nsec) : 1000=0.01%
lat (usec) : 2=0.01%, 4=56.34%, 10=8.49%, 20=1.04%, 50=0.35%
lat (usec) : 100=0.43%, 250=1.42%, 500=16.05%, 750=15.58%, 1000=0.04%
lat (msec) : 2=0.07%, 4=0.05%, 10=0.07%, 20=0.04%, 50=0.02%
lat (msec) : 100=0.01%, 250=0.01%
cpu : usr=0.93%, sys=89.47%, ctx=5631403, majf=0, minf=0
IO depths : 1=102.3%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwt: total=41127965,22146325,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
rw-seq-sync-pgsql-ext4: (groupid=3, jobs=64): err= 0: pid=27221: Tue Sep 18 15:18:42 2018
read: IOPS=357k, BW=2786MiB/s (2922MB/s)(490GiB/180001msec)
clat (nsec): min=1006, max=20336k, avg=2745.46, stdev=22291.35
lat (nsec): min=1307, max=20336k, avg=3110.59, stdev=22301.63
clat percentiles (nsec):
| 1.00th=[ 1592], 5.00th=[ 1800], 10.00th=[ 1944], 20.00th=[ 2160],
| 30.00th=[ 2352], 40.00th=[ 2480], 50.00th=[ 2608], 60.00th=[ 2736],
| 70.00th=[ 2864], 80.00th=[ 3024], 90.00th=[ 3216], 95.00th=[ 3440],
| 99.00th=[ 4016], 99.50th=[ 8896], 99.90th=[15552], 99.95th=[17280],
| 99.99th=[21376]
bw ( KiB/s): min=21099, max=151871, per=1.56%, avg=44588.93, stdev=5219.41, samples=22983
iops : min= 2637, max=18983, avg=5573.29, stdev=652.43, samples=22983
write: IOPS=192k, BW=1500MiB/s (1573MB/s)(264GiB/180001msec)
clat (usec): min=2, max=97210, avg=322.71, stdev=828.04
lat (usec): min=2, max=97210, avg=323.13, stdev=828.04
clat percentiles (usec):
| 1.00th=[ 6], 5.00th=[ 97], 10.00th=[ 182], 20.00th=[ 269],
| 30.00th=[ 297], 40.00th=[ 306], 50.00th=[ 310], 60.00th=[ 314],
| 70.00th=[ 322], 80.00th=[ 326], 90.00th=[ 334], 95.00th=[ 343],
| 99.00th=[ 400], 99.50th=[ 930], 99.90th=[12911], 99.95th=[19792],
| 99.99th=[32113]
bw ( KiB/s): min=11433, max=81619, per=1.56%, avg=24008.70, stdev=2707.40, samples=22983
iops : min= 1429, max=10202, avg=3000.77, stdev=338.43, samples=22983
lat (usec) : 2=7.89%, 4=56.48%, 10=1.25%, 20=0.37%, 50=0.25%
lat (usec) : 100=0.57%, 250=4.14%, 500=28.80%, 750=0.06%, 1000=0.03%
lat (msec) : 2=0.05%, 4=0.03%, 10=0.04%, 20=0.03%, 50=0.02%
lat (msec) : 100=0.01%
cpu : usr=1.34%, sys=90.37%, ctx=8645391, majf=0, minf=0
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwt: total=64196338,34566565,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
READ: bw=1140MiB/s (1196MB/s), 1140MiB/s-1140MiB/s (1196MB/s-1196MB/s), io=200GiB (215GB), run=180004-180004msec
WRITE: bw=614MiB/s (644MB/s), 614MiB/s-614MiB/s (644MB/s-644MB/s), io=108GiB (116GB), run=180004-180004msec
Run status group 1 (all jobs):
READ: bw=1150MiB/s (1206MB/s), 1150MiB/s-1150MiB/s (1206MB/s-1206MB/s), io=202GiB (217GB), run=180004-180004msec
WRITE: bw=620MiB/s (650MB/s), 620MiB/s-620MiB/s (650MB/s-650MB/s), io=109GiB (117GB), run=180004-180004msec
Run status group 2 (all jobs):
READ: bw=1785MiB/s (1872MB/s), 1785MiB/s-1785MiB/s (1872MB/s-1872MB/s), io=314GiB (337GB), run=180002-180002msec
WRITE: bw=961MiB/s (1008MB/s), 961MiB/s-961MiB/s (1008MB/s-1008MB/s), io=169GiB (181GB), run=180002-180002msec
Run status group 3 (all jobs):
READ: bw=2786MiB/s (2922MB/s), 2786MiB/s-2786MiB/s (2922MB/s-2922MB/s), io=490GiB (526GB), run=180001-180001msec
WRITE: bw=1500MiB/s (1573MB/s), 1500MiB/s-1500MiB/s (1573MB/s-1573MB/s), io=264GiB (283GB), run=180001-180001msec
Disk stats (read/write):
dm-0: ios=56484741/52000097, merge=0/0, ticks=55721482/45621907, in_queue=102865767, util=67.65%, aggrios=6930165/6249265, aggrmerge=130427/250746, aggrticks=6648860/4061887, aggrin_queue=10712820, aggrutil=66.53%
vdb: ios=6928564/6249448, merge=130186/250641, ticks=6629128/3928950, in_queue=10559055, util=65.93%
vdc: ios=6930486/6248991, merge=130413/250950, ticks=6643790/3962244, in_queue=10605847, util=66.02%
vdd: ios=6928089/6250855, merge=130732/250764, ticks=6472207/4009640, in_queue=10493342, util=66.18%
vde: ios=6929909/6250351, merge=130382/250303, ticks=6661137/4040922, in_queue=10701353, util=66.20%
vdf: ios=6932429/6245563, merge=130328/251129, ticks=6681549/4088606, in_queue=10769793, util=66.29%
vdg: ios=6930521/6249106, merge=130467/250956, ticks=6697543/4113859, in_queue=10811547, util=66.35%
vdh: ios=6930993/6249837, merge=130681/250844, ticks=6698661/4151500, in_queue=10851206, util=66.41%
vdi: ios=6930333/6249975, merge=130228/250384, ticks=6706869/4199379, in_queue=10910423, util=66.53%
2 ESSD
rw-rand-libaio-mysql-ext4: (g=0): rw=randrw, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=libaio, iodepth=16
...
rw-seq-libaio-mysql-ext4: (g=1): rw=rw, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=libaio, iodepth=16
...
rw-rand-sync-pgsql-ext4: (g=2): rw=randrw, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=sync, iodepth=1
...
rw-seq-sync-pgsql-ext4: (g=3): rw=rw, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=sync, iodepth=1
...
fio-3.1
Starting 256 threads
rw-rand-libaio-mysql-ext4: (groupid=0, jobs=64): err= 0: pid=21221: Tue Sep 18 15:19:03 2018
read: IOPS=112k, BW=879MiB/s (922MB/s)(154GiB/180008msec)
slat (usec): min=16, max=119403, avg=1880.80, stdev=2119.90
clat (nsec): min=940, max=512641k, avg=4098774.34, stdev=3181162.93
lat (usec): min=158, max=514427, avg=5979.64, stdev=3696.51
clat percentiles (usec):
| 1.00th=[ 3], 5.00th=[ 486], 10.00th=[ 922], 20.00th=[ 1729],
| 30.00th=[ 2474], 40.00th=[ 2933], 50.00th=[ 3425], 60.00th=[ 4080],
| 70.00th=[ 5014], 80.00th=[ 6128], 90.00th=[ 7832], 95.00th=[ 9503],
| 99.00th=[14091], 99.50th=[16450], 99.90th=[23200], 99.95th=[29230],
| 99.99th=[61604]
bw ( KiB/s): min= 8615, max=31056, per=1.57%, avg=14172.78, stdev=990.53, samples=23040
iops : min= 1076, max= 3882, avg=1771.17, stdev=123.81, samples=23040
write: IOPS=60.6k, BW=473MiB/s (496MB/s)(83.2GiB/180008msec)
slat (usec): min=17, max=119400, avg=1881.51, stdev=2122.86
clat (nsec): min=1019, max=510353k, avg=3892737.90, stdev=3154201.30
lat (usec): min=118, max=512897, avg=5774.32, stdev=3688.63
clat percentiles (usec):
| 1.00th=[ 3], 5.00th=[ 388], 10.00th=[ 799], 20.00th=[ 1500],
| 30.00th=[ 2278], 40.00th=[ 2802], 50.00th=[ 3261], 60.00th=[ 3851],
| 70.00th=[ 4752], 80.00th=[ 5866], 90.00th=[ 7504], 95.00th=[ 9241],
| 99.00th=[13829], 99.50th=[16188], 99.90th=[22676], 99.95th=[28181],
| 99.99th=[58459]
bw ( KiB/s): min= 4137, max=17712, per=1.57%, avg=7634.48, stdev=590.18, samples=23040
iops : min= 517, max= 2214, avg=953.86, stdev=73.79, samples=23040
lat (nsec) : 1000=0.01%
lat (usec) : 2=0.71%, 4=1.40%, 10=0.17%, 20=0.04%, 50=0.11%
lat (usec) : 100=0.20%, 250=0.80%, 500=2.06%, 750=2.89%, 1000=3.31%
lat (msec) : 2=12.56%, 4=35.84%, 10=36.00%, 20=3.73%, 50=0.17%
lat (msec) : 100=0.01%, 250=0.01%, 750=0.01%
cpu : usr=0.31%, sys=49.41%, ctx=17838909, majf=0, minf=0
IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.1%, 16=103.3%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=0.1%, 8=100.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=0.0%, 8=100.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwt: total=20248219,10907423,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=16
rw-seq-libaio-mysql-ext4: (groupid=1, jobs=64): err= 0: pid=21285: Tue Sep 18 15:19:03 2018
read: IOPS=133k, BW=1037MiB/s (1087MB/s)(182GiB/180005msec)
slat (usec): min=10, max=40443, avg=861.52, stdev=1493.93
clat (nsec): min=953, max=508067k, avg=4239522.11, stdev=2801559.16
lat (usec): min=188, max=510200, avg=5101.11, stdev=3015.85
clat percentiles (usec):
| 1.00th=[ 420], 5.00th=[ 914], 10.00th=[ 1319], 20.00th=[ 2024],
| 30.00th=[ 2671], 40.00th=[ 3261], 50.00th=[ 3851], 60.00th=[ 4490],
| 70.00th=[ 5211], 80.00th=[ 6194], 90.00th=[ 7635], 95.00th=[ 8979],
| 99.00th=[11731], 99.50th=[12911], 99.90th=[15795], 99.95th=[17171],
| 99.99th=[21890]
bw ( KiB/s): min= 602, max=22672, per=1.53%, avg=16220.02, stdev=2446.89, samples=23020
iops : min= 75, max= 2834, avg=2027.07, stdev=305.86, samples=23020
write: IOPS=71.4k, BW=558MiB/s (585MB/s)(98.1GiB/180005msec)
slat (usec): min=12, max=40442, avg=871.28, stdev=1501.73
clat (nsec): min=913, max=509492k, avg=3964521.95, stdev=2769947.35
lat (usec): min=129, max=511537, avg=4835.88, stdev=2992.88
clat percentiles (usec):
| 1.00th=[ 223], 5.00th=[ 791], 10.00th=[ 1172], 20.00th=[ 1827],
| 30.00th=[ 2409], 40.00th=[ 2999], 50.00th=[ 3589], 60.00th=[ 4228],
| 70.00th=[ 4883], 80.00th=[ 5866], 90.00th=[ 7242], 95.00th=[ 8455],
| 99.00th=[11207], 99.50th=[12387], 99.90th=[15008], 99.95th=[16319],
| 99.99th=[20317]
bw ( KiB/s): min= 309, max=12471, per=1.53%, avg=8733.75, stdev=1342.51, samples=23020
iops : min= 38, max= 1558, avg=1091.29, stdev=167.81, samples=23020
lat (nsec) : 1000=0.01%
lat (usec) : 2=0.31%, 4=0.36%, 10=0.02%, 20=0.01%, 50=0.01%
lat (usec) : 100=0.01%, 250=0.08%, 500=0.82%, 750=2.09%, 1000=2.82%
lat (msec) : 2=14.32%, 4=33.12%, 10=43.55%, 20=2.47%, 50=0.01%
lat (msec) : 100=0.01%, 250=0.01%, 750=0.01%
cpu : usr=0.41%, sys=9.90%, ctx=21948046, majf=0, minf=0
IO depths : 1=0.0%, 2=0.0%, 4=0.0%, 8=0.1%, 16=102.1%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=0.1%, 8=100.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=0.0%, 8=100.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwt: total=23881029,12859729,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=16
rw-rand-sync-pgsql-ext4: (groupid=2, jobs=64): err= 0: pid=21355: Tue Sep 18 15:19:03 2018
read: IOPS=304k, BW=2374MiB/s (2489MB/s)(417GiB/180001msec)
clat (nsec): min=659, max=20344k, avg=4937.11, stdev=53635.32
lat (nsec): min=830, max=20344k, avg=5147.67, stdev=53639.04
clat percentiles (nsec):
| 1.00th=[ 1928], 5.00th=[ 2096], 10.00th=[ 2192],
| 20.00th=[ 2352], 30.00th=[ 2448], 40.00th=[ 2544],
| 50.00th=[ 2640], 60.00th=[ 2736], 70.00th=[ 2864],
| 80.00th=[ 2992], 90.00th=[ 3248], 95.00th=[ 3504],
| 99.00th=[ 8640], 99.50th=[ 16512], 99.90th=[ 585728],
| 99.95th=[1122304], 99.99th=[2375680]
bw ( KiB/s): min= 8661, max=312564, per=1.57%, avg=38145.72, stdev=5837.53, samples=23040
iops : min= 1082, max=39070, avg=4767.84, stdev=729.68, samples=23040
write: IOPS=164k, BW=1278MiB/s (1340MB/s)(225GiB/180001msec)
clat (usec): min=2, max=517110, avg=377.98, stdev=1501.97
lat (usec): min=2, max=517110, avg=378.25, stdev=1501.97
clat percentiles (usec):
| 1.00th=[ 6], 5.00th=[ 99], 10.00th=[ 265], 20.00th=[ 330],
| 30.00th=[ 343], 40.00th=[ 351], 50.00th=[ 355], 60.00th=[ 363],
| 70.00th=[ 371], 80.00th=[ 379], 90.00th=[ 396], 95.00th=[ 416],
| 99.00th=[ 545], 99.50th=[ 1045], 99.90th=[11469], 99.95th=[16581],
| 99.99th=[28967]
bw ( KiB/s): min= 4709, max=168193, per=1.57%, avg=20539.14, stdev=3068.53, samples=23040
iops : min= 588, max=21024, avg=2567.01, stdev=383.55, samples=23040
lat (nsec) : 750=0.01%, 1000=0.01%
lat (usec) : 2=1.33%, 4=62.24%, 10=1.91%, 20=0.50%, 50=0.18%
lat (usec) : 100=0.32%, 250=1.63%, 500=31.34%, 750=0.27%, 1000=0.06%
lat (msec) : 2=0.07%, 4=0.04%, 10=0.06%, 20=0.03%, 50=0.01%
lat (msec) : 100=0.01%, 250=0.01%, 500=0.01%, 750=0.01%
cpu : usr=0.53%, sys=89.73%, ctx=7630423, majf=0, minf=0
IO depths : 1=102.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwt: total=54689028,29447045,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
rw-seq-sync-pgsql-ext4: (groupid=3, jobs=64): err= 0: pid=21420: Tue Sep 18 15:19:03 2018
read: IOPS=400k, BW=3128MiB/s (3280MB/s)(550GiB/180002msec)
clat (nsec): min=655, max=77256k, avg=1908.86, stdev=16100.37
lat (nsec): min=818, max=77256k, avg=2119.98, stdev=16102.12
clat percentiles (nsec):
| 1.00th=[ 988], 5.00th=[ 1144], 10.00th=[ 1256], 20.00th=[ 1416],
| 30.00th=[ 1576], 40.00th=[ 1704], 50.00th=[ 1816], 60.00th=[ 1928],
| 70.00th=[ 2040], 80.00th=[ 2192], 90.00th=[ 2384], 95.00th=[ 2576],
| 99.00th=[ 3184], 99.50th=[ 5472], 99.90th=[13504], 99.95th=[15424],
| 99.99th=[18304]
bw ( KiB/s): min=27335, max=205560, per=1.57%, avg=50224.99, stdev=4880.87, samples=23040
iops : min= 3416, max=25695, avg=6277.74, stdev=610.11, samples=23040
write: IOPS=216k, BW=1684MiB/s (1766MB/s)(296GiB/180002msec)
clat (nsec): min=1980, max=344807k, avg=289811.56, stdev=750064.44
lat (usec): min=2, max=344807, avg=290.08, stdev=750.06
clat percentiles (usec):
| 1.00th=[ 5], 5.00th=[ 106], 10.00th=[ 194], 20.00th=[ 258],
| 30.00th=[ 273], 40.00th=[ 277], 50.00th=[ 285], 60.00th=[ 289],
| 70.00th=[ 293], 80.00th=[ 297], 90.00th=[ 306], 95.00th=[ 310],
| 99.00th=[ 351], 99.50th=[ 799], 99.90th=[ 8356], 99.95th=[12387],
| 99.99th=[24249]
bw ( KiB/s): min=13581, max=112633, per=1.57%, avg=27046.57, stdev=2507.74, samples=23040
iops : min= 1697, max=14079, avg=3380.43, stdev=313.47, samples=23040
lat (nsec) : 750=0.01%, 1000=0.74%
lat (usec) : 2=42.27%, 4=21.80%, 10=1.17%, 20=0.26%, 50=0.13%
lat (usec) : 100=0.33%, 250=4.51%, 500=28.59%, 750=0.03%, 1000=0.02%
lat (msec) : 2=0.05%, 4=0.04%, 10=0.05%, 20=0.02%, 50=0.01%
lat (msec) : 100=0.01%, 500=0.01%
cpu : usr=0.63%, sys=92.37%, ctx=9426487, majf=0, minf=0
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwt: total=72069547,38810440,0, short=0,0,0, dropped=0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
READ: bw=879MiB/s (922MB/s), 879MiB/s-879MiB/s (922MB/s-922MB/s), io=154GiB (166GB), run=180008-180008msec
WRITE: bw=473MiB/s (496MB/s), 473MiB/s-473MiB/s (496MB/s-496MB/s), io=83.2GiB (89.4GB), run=180008-180008msec
Run status group 1 (all jobs):
READ: bw=1037MiB/s (1087MB/s), 1037MiB/s-1037MiB/s (1087MB/s-1087MB/s), io=182GiB (196GB), run=180005-180005msec
WRITE: bw=558MiB/s (585MB/s), 558MiB/s-558MiB/s (585MB/s-585MB/s), io=98.1GiB (105GB), run=180005-180005msec
Run status group 2 (all jobs):
READ: bw=2374MiB/s (2489MB/s), 2374MiB/s-2374MiB/s (2489MB/s-2489MB/s), io=417GiB (448GB), run=180001-180001msec
WRITE: bw=1278MiB/s (1340MB/s), 1278MiB/s-1278MiB/s (1340MB/s-1340MB/s), io=225GiB (241GB), run=180001-180001msec
Run status group 3 (all jobs):
READ: bw=3128MiB/s (3280MB/s), 3128MiB/s-3128MiB/s (3280MB/s-3280MB/s), io=550GiB (590GB), run=180002-180002msec
WRITE: bw=1684MiB/s (1766MB/s), 1684MiB/s-1684MiB/s (1766MB/s-1766MB/s), io=296GiB (318GB), run=180002-180002msec
Disk stats (read/write):
vdb: ios=32558186/26432830, merge=13683969/3967228, ticks=103112470/71513817, in_queue=174719639, util=60.48%
PostgreSQL 11 測試
1、參數
listen_addresses = '0.0.0.0'
port = 1921
max_connections = 2000
superuser_reserved_connections = 3
unix_socket_directories = '., /var/run/postgresql, /tmp'
tcp_keepalives_idle = 60
tcp_keepalives_interval = 10
tcp_keepalives_count = 10
shared_buffers = 64GB
max_prepared_transactions = 2000
work_mem = 8MB
maintenance_work_mem = 2GB
dynamic_shared_memory_type = posix
vacuum_cost_delay = 0
bgwriter_delay = 10ms
bgwriter_lru_maxpages = 1000
bgwriter_lru_multiplier = 10.0
effective_io_concurrency = 0
max_worker_processes = 128
max_parallel_maintenance_workers = 64
max_parallel_workers_per_gather = 0
parallel_leader_participation = on
max_parallel_workers = 64
wal_level = minimal
synchronous_commit = off
wal_writer_delay = 10ms
checkpoint_timeout = 35min
max_wal_size = 128GB
min_wal_size = 32GB
checkpoint_completion_target = 0.1
max_wal_senders = 0
effective_cache_size = 400GB
log_destination = 'csvlog'
logging_collector = on
log_directory = 'log'
log_filename = 'postgresql-%a.log'
log_truncate_on_rotation = on
log_rotation_age = 1d
log_rotation_size = 0
log_checkpoints = on
log_connections = on
log_disconnections = on
log_error_verbosity = verbose
log_line_prefix = '%m [%p] '
log_timezone = 'PRC'
log_autovacuum_min_duration = 0
autovacuum_max_workers = 16
autovacuum_freeze_max_age = 1200000000
autovacuum_multixact_freeze_max_age = 1400000000
autovacuum_vacuum_cost_delay = 0ms
vacuum_freeze_table_age = 1150000000
vacuum_multixact_freeze_table_age = 1150000000
datestyle = 'iso, mdy'
timezone = 'PRC'
lc_messages = 'C'
lc_monetary = 'C'
lc_numeric = 'C'
lc_time = 'C'
default_text_search_config = 'pg_catalog.english'
jit = off
cpu_tuple_cost=0.00018884145574257426
cpu_index_tuple_cost = 0.00433497085216479990
cpu_operator_cost = 0.00216748542608239995
seq_page_cost=0.014329
random_page_cost = 0.016
parallel_tuple_cost = 0
parallel_setup_cost = 0
min_parallel_table_scan_size = 0
min_parallel_index_scan_size = 0
1000W tpcc 測試
16072 * 60 = 96.4萬 tpmC
詳細結果
......
[ 2993s ] thds: 64 tps: 15107.81 qps: 431171.53 (r/w/o: 196624.50/204331.41/30215.62) lat (ms,95%): 10.65 err/s 51.00 reconn/s: 0.00
[ 2994s ] thds: 64 tps: 15454.20 qps: 434439.71 (r/w/o: 198195.61/205335.70/30908.41) lat (ms,95%): 10.46 err/s 77.00 reconn/s: 0.00
[ 2995s ] thds: 64 tps: 15480.57 qps: 438798.81 (r/w/o: 200298.44/207538.23/30962.14) lat (ms,95%): 10.46 err/s 72.00 reconn/s: 0.00
[ 2996s ] thds: 64 tps: 15341.97 qps: 434496.22 (r/w/o: 198027.64/205784.63/30683.94) lat (ms,95%): 10.65 err/s 73.00 reconn/s: 0.00
[ 2997s ] thds: 64 tps: 15208.54 qps: 433973.96 (r/w/o: 197975.05/205581.82/30417.08) lat (ms,95%): 10.65 err/s 75.01 reconn/s: 0.00
[ 2998s ] thds: 64 tps: 15300.14 qps: 431763.76 (r/w/o: 196862.95/204300.53/30600.28) lat (ms,95%): 10.65 err/s 84.00 reconn/s: 0.00
[ 2999s ] thds: 64 tps: 15108.49 qps: 426253.35 (r/w/o: 194171.57/201864.80/30216.98) lat (ms,95%): 10.65 err/s 56.99 reconn/s: 0.00
[ 3000s ] thds: 64 tps: 15046.89 qps: 428187.32 (r/w/o: 195463.56/202631.98/30091.78) lat (ms,95%): 10.84 err/s 70.00 reconn/s: 0.00
SQL statistics:
queries performed:
read: 625427855
write: 649118720
other: 96478628
total: 1371025203
transactions: 48223282 (16072.47 per sec.)
queries: 1371025203 (456952.75 per sec.)
ignored errors: 210005 (69.99 per sec.)
reconnects: 0 (0.00 per sec.)
General statistics:
total time: 3000.3636s
total number of events: 48223282
Latency (ms):
min: 0.28
avg: 3.98
max: 912.95
95th percentile: 9.91
sum: 191859179.61
Threads fairness:
events (avg/stddev): 753488.7812/3072.19
execution time (avg/stddev): 2997.7997/0.05
1000億 tpcb 測試
1、生成1000億數據
nohup pgbench -i -s 1000000 -I dtg >./pgbench_ins.log 2>&1 &
99998900000 of 100000000000 tuples (99%) done (elapsed 93180.83 s, remaining 1.03 s)
99999000000 of 100000000000 tuples (99%) done (elapsed 93181.05 s, remaining 0.93 s)
99999100000 of 100000000000 tuples (99%) done (elapsed 93181.13 s, remaining 0.84 s)
99999200000 of 100000000000 tuples (99%) done (elapsed 93181.21 s, remaining 0.75 s)
99999300000 of 100000000000 tuples (99%) done (elapsed 93181.30 s, remaining 0.65 s)
99999400000 of 100000000000 tuples (99%) done (elapsed 93182.01 s, remaining 0.56 s)
99999500000 of 100000000000 tuples (99%) done (elapsed 93182.09 s, remaining 0.47 s)
99999600000 of 100000000000 tuples (99%) done (elapsed 93182.17 s, remaining 0.37 s)
99999700000 of 100000000000 tuples (99%) done (elapsed 93182.25 s, remaining 0.28 s)
99999800000 of 100000000000 tuples (99%) done (elapsed 93182.33 s, remaining 0.19 s)
99999900000 of 100000000000 tuples (99%) done (elapsed 93182.42 s, remaining 0.09 s)
100000000000 of 100000000000 tuples (100%) done (elapsed 93182.50 s, remaining 0.00 s)
done.
生成1000億數據耗時： 93182 秒。 （約25小時 52分鐘。）
2、給1000億的單表創建索引(64 parallel)
postgres=# analyze pgbench_accounts ;
ANALYZE
postgres=# alter table pgbench_accounts set (parallel_workers =64);
ALTER TABLE
nohup pgbench -i -s 1000000 -I p > ./pk.log 2>&1 &
1000億單表創建索引耗時： 10小時 50分鐘。
1000億單表、索引容量大小
1000億單表：12.5 TB。
1000億單表索引： 2 TB。
postgres=# \di+ pgbench*
List of relations
Schema | Name | Type | Owner | Table | Size | Description
--------+-----------------------+-------+----------+------------------+---------+-------------
public | pgbench_accounts_pkey | index | postgres | pgbench_accounts | 2092 GB |
public | pgbench_branches_pkey | index | postgres | pgbench_branches | 21 MB |
public | pgbench_tellers_pkey | index | postgres | pgbench_tellers | 214 MB |
(3 rows)
postgres=# \dt+ pgbench*
List of relations
Schema | Name | Type | Owner | Size | Description
--------+------------------+-------+----------+---------+-------------
public | pgbench_accounts | table | postgres | 12 TB |
public | pgbench_branches | table | postgres | 35 MB |
public | pgbench_history | table | postgres | 0 bytes |
public | pgbench_tellers | table | postgres | 422 MB |
(4 rows)
索引深度
1、1000億行，INT8類型索引，深度爲4（不包括ROOT PAGE）。
postgres=# select * from bt_metap('pgbench_accounts_pkey');
magic | version | root | level | fastroot | fastlevel | oldest_xact | last_cleanup_num_tuples
--------+---------+----------+-------+----------+-----------+-------------+-------------------------
340322 | 3 | 23149704 | 4 | 23149704 | 4 | 0 | -1
(1 row)
2、索引查詢，索引需要搜索5個BLOCK。
postgres=# explain (analyze,verbose,timing,costs,buffers) select * from pgbench_accounts where aid=10000000;
QUERY PLAN
-------------------------------------------------------------------------------------------------------------------------------------------------
Index Scan using pgbench_accounts_pkey on public.pgbench_accounts (cost=0.62..0.66 rows=1 width=101) (actual time=0.020..0.021 rows=1 loops=1)
Output: aid, bid, abalance, filler
Index Cond: (pgbench_accounts.aid = 10000000)
Buffers: shared hit=6 -- 5個index block, 1個heap block
Planning Time: 0.049 ms
Execution Time: 0.033 ms
(6 rows)
tpcb 1000億 性能測試
使用高斯分佈，生成測試數據。
只讀
vi test.sql
\set aid random_gaussian(1, :range, 10.0)
SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
讀寫
vi rw.sql
\set aid random_gaussian(1, :range, 10.0)
\set bid random(1, 1 * :scale)
\set tid random(1, 10 * :scale)
\set delta random(-5000, 5000)
BEGIN;
UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;
SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid;
UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid;
INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);
END;
tpcb 1000億 只讀測試
1、活躍數據10億
QPS: 998818
pgbench -M prepared -n -r -P 1 -f ./test.sql -c 64 -j 64 -T 360 -D range=1000000000
transaction type: ./test.sql
scaling factor: 1
query mode: prepared
number of clients: 64
number of threads: 64
duration: 360 s
number of transactions actually processed: 359606534
latency average = 0.064 ms
latency stddev = 0.046 ms
tps = 998777.462686 (including connections establishing)
tps = 998818.121681 (excluding connections establishing)
statement latencies in milliseconds:
0.002 \set aid random_gaussian(1, :range, 10.0)
0.062 SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
2、活躍數據100億
QPS: 597877
pgbench -M prepared -n -r -P 1 -f ./test.sql -c 64 -j 64 -T 360 -D range=10000000000
transaction type: ./test.sql
scaling factor: 1
query mode: prepared
number of clients: 64
number of threads: 64
duration: 360 s
number of transactions actually processed: 215257932
latency average = 0.107 ms
latency stddev = 0.526 ms
tps = 597861.125133 (including connections establishing)
tps = 597877.469245 (excluding connections establishing)
statement latencies in milliseconds:
0.002 \set aid random_gaussian(1, :range, 10.0)
0.105 SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
前期IO
Total DISK READ : 2.32 G/s | Total DISK WRITE : 0.00 B/s
Actual DISK READ: 2.32 G/s | Actual DISK WRITE: 0.00 B/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
46798 be/4 postgres 31.72 M/s 0.00 B/s 0.00 % 72.60 % postgres: postgres postgres [local] BIND
46774 be/4 postgres 37.42 M/s 0.00 B/s 0.00 % 71.91 % postgres: postgres postgres [local] SELECT
46792 be/4 postgres 35.54 M/s 0.00 B/s 0.00 % 71.89 % postgres: postgres postgres [local] idle
46708 be/4 postgres 35.08 M/s 0.00 B/s 0.00 % 71.59 % postgres: postgres postgres [local] SELECT
46730 be/4 postgres 46.84 M/s 0.00 B/s 0.00 % 70.99 % postgres: postgres postgres [local] SELECT
46704 be/4 postgres 34.51 M/s 0.00 B/s 0.00 % 70.84 % postgres: postgres postgres [local] SELECT
46716 be/4 postgres 46.05 M/s 0.00 B/s 0.00 % 70.84 % postgres: postgres postgres [local] SELECT
46788 be/4 postgres 33.83 M/s 0.00 B/s 0.00 % 70.84 % postgres: postgres postgres [local] SELECT
46807 be/4 postgres 33.78 M/s 0.00 B/s 0.00 % 70.41 % postgres: postgres postgres [local] SELECT
46815 be/4 postgres 35.21 M/s 0.00 B/s 0.00 % 70.33 % postgres: postgres postgres [local] SELECT
46812 be/4 postgres 45.95 M/s 0.00 B/s 0.00 % 70.18 % postgres: postgres postgres [local] SELECT
46752 be/4 postgres 34.21 M/s 0.00 B/s 0.00 % 70.09 % postgres: postgres postgres [local] SELECT
加熱後IO
... ...
Total DISK READ : 527.32 M/s | Total DISK WRITE : 0.00 B/s
Actual DISK READ: 527.24 M/s | Actual DISK WRITE: 30.77 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
47108 be/4 postgres 11.77 M/s 0.00 B/s 0.00 % 4.71 % postgres: postgres postgres [local] SELECT
47025 be/4 postgres 10.55 M/s 0.00 B/s 0.00 % 4.39 % postgres: postgres postgres [local] SELECT
47115 be/4 postgres 9.28 M/s 0.00 B/s 0.00 % 4.30 % postgres: postgres postgres [local] SELECT
47061 be/4 postgres 13.27 M/s 0.00 B/s 0.00 % 4.23 % postgres: postgres postgres [local] SELECT
47082 be/4 postgres 10.49 M/s 0.00 B/s 0.00 % 4.21 % postgres: postgres postgres [local] SELECT
47111 be/4 postgres 6.54 M/s 0.00 B/s 0.00 % 4.18 % postgres: postgres postgres [local] idle
47071 be/4 postgres 6.46 M/s 0.00 B/s 0.00 % 4.15 % postgres: postgres postgres [local] idle
47018 be/4 postgres 9.13 M/s 0.00 B/s 0.00 % 4.11 % postgres: postgres postgres [local] idle
47087 be/4 postgres 5.77 M/s 0.00 B/s 0.00 % 4.09 % postgres: postgres postgres [local] idle
47105 be/4 postgres 8.89 M/s 0.00 B/s 0.00 % 4.08 % postgres: postgres postgres [local] BINDCT
47069 be/4 postgres 8.46 M/s 0.00 B/s 0.00 % 4.05 % postgres: postgres postgres [local] SELECT
47106 be/4 postgres 8.89 M/s 0.00 B/s 0.00 % 3.91 % postgres: postgres postgres [local] idle
47053 be/4 postgres 6.48 M/s 0.00 B/s 0.00 % 3.91 % postgres: postgres postgres [local] SELECT
47028 be/4 postgres 9.71 M/s 0.00 B/s 0.00 % 3.83 % postgres: postgres postgres [local] idle
47112 be/4 postgres 6.72 M/s 0.00 B/s 0.00 % 3.82 % postgres: postgres postgres [local] SELECT
47039 be/4 postgres 7.63 M/s 0.00 B/s 0.00 % 3.81 % postgres: postgres postgres [local] BIND
3、活躍數據500億
QPS: 66678
pgbench -M prepared -n -r -P 1 -f ./test.sql -c 64 -j 64 -T 360 -D range=50000000000
transaction type: ./test.sql
scaling factor: 1
query mode: prepared
number of clients: 64
number of threads: 64
duration: 3600 s
number of transactions actually processed: 240046184
latency average = 0.960 ms
latency stddev = 1.660 ms
tps = 66678.433880 (including connections establishing)
tps = 66678.672147 (excluding connections establishing)
statement latencies in milliseconds:
0.001 \set aid random_gaussian(1, :range, 10.0)
0.958 SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
IO
Total DISK READ : 2.45 G/s | Total DISK WRITE : 0.00 B/s
Actual DISK READ: 2.45 G/s | Actual DISK WRITE: 0.00 B/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
47230 be/4 postgres 39.87 M/s 0.00 B/s 0.00 % 87.93 % postgres: postgres postgres [local] SELECT
47218 be/4 postgres 32.12 M/s 0.00 B/s 0.00 % 87.85 % postgres: postgres postgres [local] SELECT
47196 be/4 postgres 38.54 M/s 0.00 B/s 0.00 % 87.77 % postgres: postgres postgres [local] SELECT
47250 be/4 postgres 32.52 M/s 0.00 B/s 0.00 % 87.73 % postgres: postgres postgres [local] SELECT
47210 be/4 postgres 35.25 M/s 0.00 B/s 0.00 % 87.64 % postgres: postgres postgres [local] SELECT
47173 be/4 postgres 35.29 M/s 0.00 B/s 0.00 % 87.63 % postgres: postgres postgres [local] SELECT
47220 be/4 postgres 36.14 M/s 0.00 B/s 0.00 % 87.63 % postgres: postgres postgres [local] SELECT
47243 be/4 postgres 44.79 M/s 0.00 B/s 0.00 % 87.61 % postgres: postgres postgres [local] SELECT
47149 be/4 postgres 48.33 M/s 0.00 B/s 0.00 % 87.55 % postgres: postgres postgres [local] SELECT
47245 be/4 postgres 44.83 M/s 0.00 B/s 0.00 % 87.54 % postgres: postgres postgres [local] SELECT
47254 be/4 postgres 29.74 M/s 0.00 B/s 0.00 % 87.53 % postgres: postgres postgres [local] SELECT
47253 be/4 postgres 41.24 M/s 0.00 B/s 0.00 % 87.50 % postgres: postgres postgres [local] SELECT
47162 be/4 postgres 30.31 M/s 0.00 B/s 0.00 % 87.50 % postgres: postgres postgres [local] SELECT
47229 be/4 postgres 29.40 M/s 0.00 B/s 0.00 % 87.50 % postgres: postgres postgres [local] SELECT
47234 be/4 postgres 37.08 M/s 0.00 B/s 0.00 % 87.50 % postgres: postgres postgres [local] SELECT
47242 be/4 postgres 40.28 M/s 0.00 B/s 0.00 % 87.46 % postgres: postgres postgres [local] SELECT
47186 be/4 postgres 36.05 M/s 0.00 B/s 0.00 % 87.44 % postgres: postgres postgres [local] SELECT
47165 be/4 postgres 33.66 M/s 0.00 B/s 0.00 % 87.43 % postgres: postgres postgres [local] SELECT
4、活躍數據1000億
QPS: 67295
pgbench -M prepared -n -r -P 1 -f ./test.sql -c 64 -j 64 -T 360 -D range=100000000000
transaction type: ./test.sql
scaling factor: 1
query mode: prepared
number of clients: 64
number of threads: 64
duration: 3600 s
number of transactions actually processed: 242265704
latency average = 0.951 ms
latency stddev = 2.313 ms
tps = 67295.523254 (including connections establishing)
tps = 67295.778158 (excluding connections establishing)
statement latencies in milliseconds:
0.002 \set aid random_gaussian(1, :range, 10.0)
0.949 SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
IO
Total DISK READ : 2.24 G/s | Total DISK WRITE : 0.00 B/s
Actual DISK READ: 2.24 G/s | Actual DISK WRITE: 54.79 K/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
47932 be/4 postgres 33.54 M/s 0.00 B/s 0.00 % 88.36 % postgres: postgres postgres [local] SELECT
48010 be/4 postgres 33.41 M/s 0.00 B/s 0.00 % 88.27 % postgres: postgres postgres [local] SELECT
48021 be/4 postgres 34.10 M/s 0.00 B/s 0.00 % 88.21 % postgres: postgres postgres [local] SELECT
48049 be/4 postgres 32.14 M/s 0.00 B/s 0.00 % 88.20 % postgres: postgres postgres [local] SELECT
48048 be/4 postgres 33.34 M/s 0.00 B/s 0.00 % 88.18 % postgres: postgres postgres [local] SELECT
47988 be/4 postgres 31.79 M/s 0.00 B/s 0.00 % 88.11 % postgres: postgres postgres [local] SELECT
48007 be/4 postgres 26.25 M/s 0.00 B/s 0.00 % 88.07 % postgres: postgres postgres [local] SELECT
48013 be/4 postgres 35.37 M/s 0.00 B/s 0.00 % 88.07 % postgres: postgres postgres [local] SELECT
47949 be/4 postgres 36.25 M/s 0.00 B/s 0.00 % 88.04 % postgres: postgres postgres [local] SELECT
47979 be/4 postgres 44.90 M/s 0.00 B/s 0.00 % 88.02 % postgres: postgres postgres [local] SELECT
48047 be/4 postgres 39.64 M/s 0.00 B/s 0.00 % 87.97 % postgres: postgres postgres [local] SELECT
48038 be/4 postgres 39.24 M/s 0.00 B/s 0.00 % 87.93 % postgres: postgres postgres [local] SELECT
48034 be/4 postgres 38.02 M/s 0.00 B/s 0.00 % 87.89 % postgres: postgres postgres [local] SELECT
48019 be/4 postgres 35.99 M/s 0.00 B/s 0.00 % 87.88 % postgres: postgres postgres [local] SELECT
48046 be/4 postgres 32.00 M/s 0.00 B/s 0.00 % 87.88 % postgres: postgres postgres [local] SELECT
tpcb 1000億 讀寫測試
1、活躍數據10億
TPS: 95119
QPS: 475595
pgbench -M prepared -n -r -P 1 -f ./rw.sql -c 64 -j 64 -T 360 -D scale=1000000 -D range=1000000000
transaction type: ./rw.sql
scaling factor: 1
query mode: prepared
number of clients: 64
number of threads: 64
duration: 360 s
number of transactions actually processed: 34244287
latency average = 0.673 ms
latency stddev = 0.394 ms
tps = 95116.186279 (including connections establishing)
tps = 95119.886927 (excluding connections establishing)
statement latencies in milliseconds:
0.003 \set aid random_gaussian(1, :range, 10.0)
0.001 \set bid random(1, 1 * :scale)
0.001 \set tid random(1, 10 * :scale)
0.001 \set delta random(-5000, 5000)
0.046 BEGIN;
0.133 UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;
0.077 SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
0.104 UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid;
0.088 UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid;
0.074 INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);
0.146 END;
2、活躍數據100億
TPS: 85278
QPS: 426390
pgbench -M prepared -n -r -P 1 -f ./rw.sql -c 64 -j 64 -T 360 -D scale=1000000 -D range=10000000000
transaction type: ./rw.sql
scaling factor: 1
query mode: prepared
number of clients: 64
number of threads: 64
duration: 360 s
number of transactions actually processed: 30702466
latency average = 0.750 ms
latency stddev = 1.518 ms
tps = 85275.759706 (including connections establishing)
tps = 85278.402619 (excluding connections establishing)
statement latencies in milliseconds:
0.003 \set aid random_gaussian(1, :range, 10.0)
0.001 \set bid random(1, 1 * :scale)
0.001 \set tid random(1, 10 * :scale)
0.001 \set delta random(-5000, 5000)
0.047 BEGIN;
0.193 UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;
0.082 SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
0.108 UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid;
0.093 UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid;
0.078 INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);
0.144 END;
IO
Total DISK READ : 124.77 M/s | Total DISK WRITE : 846.78 M/s
Actual DISK READ: 124.01 M/s | Actual DISK WRITE: 820.10 M/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
31430 be/4 postgres 27.03 K/s 44.03 M/s 0.00 % 22.13 % postgres: walwriter
49767 be/4 postgres 1629.40 K/s 8.68 M/s 0.00 % 3.03 % postgres: postgres postgres [local] UPDATE
49771 be/4 postgres 2.73 M/s 8.63 M/s 0.00 % 2.34 % postgres: postgres postgres [local] UPDATE
49742 be/4 postgres 2.77 M/s 8.26 M/s 0.00 % 2.31 % postgres: postgres postgres [local] UPDATE
49787 be/4 postgres 1343.68 K/s 9.27 M/s 0.00 % 2.29 % postgres: postgres postgres [local] UPDATE
49785 be/4 postgres 3.05 M/s 8.64 M/s 0.00 % 2.27 % postgres: postgres postgres [local] UPDATE
49776 be/4 postgres 1783.85 K/s 11.64 M/s 0.00 % 2.05 % postgres: postgres postgres [local] UPDATE
49774 be/4 postgres 4.22 M/s 8.13 M/s 0.00 % 2.05 % postgres: postgres postgres [local] UPDATE
49775 be/4 postgres 671.84 K/s 8.79 M/s 0.00 % 2.04 % postgres: postgres postgres [local] UPDATE
49786 be/4 postgres 1220.12 K/s 8.15 M/s 0.00 % 2.04 % postgres: postgres postgres [local] UPDATE
49772 be/4 postgres 1003.90 K/s 8.77 M/s 0.00 % 2.02 % postgres: postgres postgres [local] UPDATE
49697 be/4 postgres 2.56 M/s 8.69 M/s 0.00 % 2.01 % postgres: postgres postgres [local] UPDATE
49803 be/4 postgres 733.62 K/s 8.22 M/s 0.00 % 2.00 % postgres: postgres postgres [local] UPDATE
49806 be/4 postgres 2.84 M/s 10.23 M/s 0.00 % 1.99 % postgres: postgres postgres [local] UPDATE
49804 be/4 postgres 1783.85 K/s 8.60 M/s 0.00 % 1.98 % postgres: postgres postgres [local] UPDATE
49766 be/4 postgres 478.78 K/s 14.62 M/s 0.00 % 1.97 % postgres: postgres postgres [local] UPDATE
49770 be/4 postgres 2.29 M/s 8.82 M/s 0.00 % 1.96 % postgres: postgres postgres [local] UPDATE
49715 be/4 postgres 3.20 M/s 8.37 M/s 0.00 % 1.96 % postgres: postgres postgres [local] UPDATE
49810 be/4 postgres 3.35 M/s 9.68 M/s 0.00 % 1.93 % postgres: postgres postgres [local] UPDATE
49780 be/4 postgres 2.56 M/s 8.22 M/s 0.00 % 1.92 % postgres: postgres postgres [local] UPDATE
49784 be/4 postgres 3.39 M/s 8.35 M/s 0.00 % 1.92 % postgres: postgres postgres [local] UPDATE
49734 be/4 postgres 2.31 M/s 8.66 M/s 0.00 % 1.91 % postgres: postgres postgres [local] UPDATE
49800 be/4 postgres 2023.24 K/s 8.55 M/s 0.00 % 1.90 % postgres: postgres postgres [local] UPDATE
49794 be/4 postgres 1629.40 K/s 8.88 M/s 0.00 % 1.85 % postgres: postgres postgres [local] UPDATE
49765 be/4 postgres 3.24 M/s 8.67 M/s 0.00 % 1.80 % postgres: postgres postgres [local] UPDATE
49724 be/4 postgres 1173.79 K/s 10.08 M/s 0.00 % 1.79 % postgres: postgres postgres [local] UPDATE
49728 be/4 postgres 1413.18 K/s 8.63 M/s 0.00 % 1.78 % postgres: postgres postgres [local] UPDATE
49781 be/4 postgres 1436.34 K/s 7.93 M/s 0.00 % 1.76 % postgres: postgres postgres [local] UPDATE
49790 be/4 postgres 1096.56 K/s 8.60 M/s 0.00 % 1.76 % postgres: postgres postgres [local] UPDATE
3、活躍數據500億
TPS: 38301
QPS: 191505
pgbench -M prepared -n -r -P 1 -f ./rw.sql -c 64 -j 64 -T 360 -D scale=1000000 -D range=50000000000
transaction type: ./rw.sql
scaling factor: 1
query mode: prepared
number of clients: 64
number of threads: 64
duration: 360 s
number of transactions actually processed: 13790704
latency average = 1.671 ms
latency stddev = 2.620 ms
tps = 38299.935890 (including connections establishing)
tps = 38301.102322 (excluding connections establishing)
statement latencies in milliseconds:
0.002 \set aid random_gaussian(1, :range, 10.0)
0.001 \set bid random(1, 1 * :scale)
0.001 \set tid random(1, 10 * :scale)
0.001 \set delta random(-5000, 5000)
0.031 BEGIN;
1.274 UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;
0.068 SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
0.103 UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid;
0.076 UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid;
0.058 INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);
0.056 END;
IO
Total DISK READ : 1508.55 M/s | Total DISK WRITE : 618.92 M/s
Actual DISK READ: 1507.72 M/s | Actual DISK WRITE: 450.33 M/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
49510 be/4 postgres 21.45 M/s 5.40 M/s 0.00 % 61.29 % postgres: postgres postgres [local] UPDATE
49507 be/4 postgres 26.85 M/s 5.61 M/s 0.00 % 60.79 % postgres: postgres postgres [local] UPDATE
49456 be/4 postgres 28.59 M/s 5.67 M/s 0.00 % 60.42 % postgres: postgres postgres [local] UPDATE
49436 be/4 postgres 23.76 M/s 5.23 M/s 0.00 % 60.31 % postgres: postgres postgres [local] UPDATE
49516 be/4 postgres 21.82 M/s 5.40 M/s 0.00 % 59.84 % postgres: postgres postgres [local] UPDATE
49414 be/4 postgres 20.77 M/s 5.44 M/s 0.00 % 59.84 % postgres: postgres postgres [local] UPDATE
49503 be/4 postgres 20.13 M/s 6.15 M/s 0.00 % 59.81 % postgres: postgres postgres [local] UPDATE
49410 be/4 postgres 29.23 M/s 5.52 M/s 0.00 % 59.73 % postgres: postgres postgres [local] UPDATE
49427 be/4 postgres 18.61 M/s 5.18 M/s 0.00 % 59.71 % postgres: postgres postgres [local] idle in transaction
49501 be/4 postgres 17.22 M/s 5.60 M/s 0.00 % 59.70 % postgres: postgres postgres [local] UPDATE
49493 be/4 postgres 24.60 M/s 7.22 M/s 0.00 % 59.66 % postgres: postgres postgres [local] UPDATE
49512 be/4 postgres 23.08 M/s 5.53 M/s 0.00 % 59.65 % postgres: postgres postgres [local] UPDATE
49509 be/4 postgres 24.04 M/s 5.64 M/s 0.00 % 59.55 % postgres: postgres postgres [local] UPDATE
49490 be/4 postgres 17.89 M/s 5.62 M/s 0.00 % 59.55 % postgres: postgres postgres [local] UPDATE
4、活躍數據1000億
TPS: 35189
QPS: 175945
pgbench -M prepared -n -r -P 1 -f ./rw.sql -c 64 -j 64 -T 360 -D scale=1000000 -D range=100000000000
transaction type: ./rw.sql
scaling factor: 1
query mode: prepared
number of clients: 64
number of threads: 64
duration: 360 s
number of transactions actually processed: 12670591
latency average = 1.818 ms
latency stddev = 3.928 ms
tps = 35188.224787 (including connections establishing)
tps = 35189.625697 (excluding connections establishing)
statement latencies in milliseconds:
0.003 \set aid random_gaussian(1, :range, 10.0)
0.001 \set bid random(1, 1 * :scale)
0.001 \set tid random(1, 10 * :scale)
0.001 \set delta random(-5000, 5000)
0.032 BEGIN;
1.392 UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;
0.072 SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
0.112 UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid;
0.086 UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid;
0.061 INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);
0.059 END;
IO
Total DISK READ : 1824.52 M/s | Total DISK WRITE : 241.53 M/s
Actual DISK READ: 1821.44 M/s | Actual DISK WRITE: 237.31 M/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
48918 be/4 postgres 27.19 M/s 0.00 B/s 0.00 % 67.37 % postgres: postgres postgres [local] UPDATE
48893 be/4 postgres 32.32 M/s 0.00 B/s 0.00 % 67.29 % postgres: postgres postgres [local] UPDATE
48914 be/4 postgres 23.47 M/s 0.00 B/s 0.00 % 67.29 % postgres: postgres postgres [local] UPDATE
48889 be/4 postgres 33.45 M/s 0.00 B/s 0.00 % 67.23 % postgres: postgres postgres [local] UPDATE
48904 be/4 postgres 34.80 M/s 0.00 B/s 0.00 % 67.21 % postgres: postgres postgres [local] UPDATE
48861 be/4 postgres 30.88 M/s 7.81 K/s 0.00 % 67.06 % postgres: postgres postgres [local] UPDATE
48910 be/4 postgres 27.16 M/s 328.11 K/s 0.00 % 67.02 % postgres: postgres postgres [local] UPDATE
48821 be/4 postgres 27.54 M/s 7.81 K/s 0.00 % 67.01 % postgres: postgres postgres [local] UPDATE
48825 be/4 postgres 35.88 M/s 0.00 B/s 0.00 % 66.89 % postgres: postgres postgres [local] UPDATE
48930 be/4 postgres 31.68 M/s 7.81 K/s 0.00 % 66.82 % postgres: postgres postgres [local] UPDATE
48867 be/4 postgres 26.99 M/s 7.81 K/s 0.00 % 66.81 % postgres: postgres postgres [local] idle in transaction
48929 be/4 postgres 25.61 M/s 7.81 K/s 0.00 % 66.77 % postgres: postgres postgres [local] UPDATE
48894 be/4 postgres 24.08 M/s 0.00 B/s 0.00 % 66.67 % postgres: postgres postgres [local] UPDATE
48921 be/4 postgres 32.90 M/s 640.60 K/s 0.00 % 66.66 % postgres: postgres postgres [local] UPDATE
48925 be/4 postgres 27.30 M/s 0.00 B/s 0.00 % 66.63 % postgres: postgres postgres [local] UPDATE
48829 be/4 postgres 24.85 M/s 0.00 B/s 0.00 % 66.63 % postgres: postgres postgres [local] idle
48901 be/4 postgres 29.57 M/s 0.00 B/s 0.00 % 66.62 % postgres: postgres postgres [local] UPDATE
48927 be/4 postgres 24.33 M/s 7.81 K/s 0.00 % 66.59 % postgres: postgres postgres [local] UPDATE
48933 be/4 postgres 27.85 M/s 7.81 K/s 0.00 % 66.57 % postgres: postgres postgres [local] BINDTE
48890 be/4 postgres 27.79 M/s 0.00 B/s 0.00 % 66.56 % postgres: postgres postgres [local] UPDATE
48931 be/4 postgres 30.29 M/s 0.00 B/s 0.00 % 66.55 % postgres: postgres postgres [local] UPDATE
其他測試
同步多副本環境
《PostgreSQL 一主多從(多副本,強同步)簡明手冊 - 配置、壓測、監控、切換、防腦裂、修復、0丟失 - 珍藏級》
其中一個備庫使用zfs存儲，開啓lz4壓縮，提供閃回，備份能力。
創建備庫，單個備庫的創建速度約500MB/s，15TB的庫，需要9個半小時創建完成。
[root@pg11 ~]# dstat
You did not select any stats, using -cdngy by default.
----total-cpu-usage---- -dsk/total- -net/total- ---paging-- ---system--
usr sys idl wai hiq siq| read writ| recv send| in out | int csw
4 7 85 4 0 0| 289M 164M| 0 0 | 0 0 | 41k 80k
0 1 99 0 0 0| 508M 0 |1218k 1007M| 0 0 | 40k 1559
0 1 99 0 0 0| 500M 0 |1233k 1004M| 0 0 | 41k 1673
0 1 99 0 0 0| 492M 0 |1206k 994M| 0 0 | 40k 1576
0 1 99 0 0 0| 508M 0 |1245k 1015M| 0 0 | 41k 1601
0 1 99 0 0 0| 516M 0 |1257k 1021M| 0 0 | 42k 1576
0 2 98 0 0 0| 520M 0 |1300k 1044M| 0 0 | 44k 1891
[root@pg11 ~]# top -c -u postgres
top - 15:09:33 up 2 days, 4:48, 2 users, load average: 0.41, 3.98, 22.70
Tasks: 516 total, 2 running, 514 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.1 us, 0.8 sy, 0.0 ni, 99.1 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 52819500+total, 29681988 free, 3079916 used, 49543308+buff/cache
KiB Swap: 0 total, 0 free, 0 used. 52057548+avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
50168 postgres 20 0 66.436g 14264 12248 R 35.1 0.0 0:37.57 postgres: walsender postgres 172.17.20.28(48412) sending backup "pg_basebackup base backup"
50176 postgres 20 0 66.436g 20416 18400 S 24.2 0.0 0:18.35 postgres: walsender postgres 172.17.20.29(65032) sending backup "pg_basebackup base backup"
50154 postgres 20 0 66.433g 1.979g 1.978g S 0.0 0.4 0:01.41 /usr/pgsql-11/bin/postgres
50155 postgres 20 0 245148 2036 596 S 0.0 0.0 0:00.00 postgres: logger
50157 postgres 20 0 66.434g 531212 529720 S 0.0 0.1 0:00.43 postgres: checkpointer
50158 postgres 20 0 66.434g 530592 529120 S 0.0 0.1 0:00.54 postgres: background writer
50159 postgres 20 0 66.433g 526884 525420 S 0.0 0.1 0:00.28 postgres: walwriter
50160 postgres 20 0 66.436g 3224 1392 S 0.0 0.0 0:00.00 postgres: autovacuum launcher
50161 postgres 20 0 247404 2252 692 S 0.0 0.0 0:00.00 postgres: stats collector
50162 postgres 20 0 66.436g 2844 1096 S 0.0 0.0 0:00.00 postgres: logical replication launcher
50169 postgres 20 0 66.436g 4124 1944 S 0.0 0.0 0:00.01 postgres: walsender postgres 172.17.20.28(48414) streaming 101/44000140
50177 postgres 20 0 66.436g 3796 1872 S 0.0 0.0 0:00.00 postgres: walsender postgres 172.17.20.29(65034) streaming 101/44000140
配置步驟
1、配置pg_hba.conf
host replication all xxx.xxx.xxx.xxx/32 md5
2、創建replication角色用戶
create role repxxx login replication encrypted password 'xxx';
3、pg_basebackup拉取數據,注意開啓SLOT，否則對於很大的數據庫，可能數據備份結束後,WAL已經在主庫被清除了。（有WAL歸檔的情況下，可以不開啓SLOT。開啓SLOT後，未被備庫拉取的WAL不會被清除。）
export PGPASSWORD=xxx
nohup pg_basebackup -F p -D $PGDATA -h 172.17.20.30 -p 1921 -U repxxx -X stream -C -S standby1 >/dev/null 2>&1 &
nohup pg_basebackup -F p -D $PGDATA -h 172.17.20.30 -p 1921 -U repxxx -X stream -C -S standby2 >/dev/null 2>&1 &
4、配置recovery.conf
recovery_target_timeline = 'latest'
standby_mode = on
primary_conninfo = 'host=172.17.20.30 port=1921 user=repxxx password=xxx' # e.g. 'host=localhost port=5432'
primary_slot_name = 'standby1'
recovery_target_timeline = 'latest'
standby_mode = on
primary_conninfo = 'host=172.17.20.30 port=1921 user=repxxx password=xxx' # e.g. 'host=localhost port=5432'
primary_slot_name = 'standby2'
5、啓動備庫
6、主庫配置多副本參數
synchronous_standby_names = 'ANY 1 (*)'
synchronous_commit = remote_write
postgres=# show synchronous_commit ;
synchronous_commit
--------------------
remote_write
(1 row)
postgres=# show synchronous_standby_names ;
synchronous_standby_names
---------------------------
ANY 1 (*)
(1 row)
7、tpcb 1000億（活躍10億） rw 測試, QPS 5.34萬。
transaction type: ./rw.sql
scaling factor: 1
query mode: prepared
number of clients: 64
number of threads: 64
duration: 360 s
number of transactions actually processed: 19239053
latency average = 1.198 ms
latency stddev = 1.208 ms
tps = 53432.922774 (including connections establishing)
tps = 53435.051257 (excluding connections establishing)
statement latencies in milliseconds:
0.003 \set aid random_gaussian(1, :range, 10.0)
0.001 \set bid random(1, 1 * :scale)
0.001 \set tid random(1, 10 * :scale)
0.001 \set delta random(-5000, 5000)
0.043 BEGIN;
0.122 UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;
0.068 SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
0.089 UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid;
0.080 UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid;
0.064 INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);
0.726 END;
8、tpcc 1000W , tps : 11000 , tpmC : 66W.
SQL statistics:
queries performed:
read: 513698640
write: 533163795
other: 79242254
total: 1126104689
transactions: 39605095 (11000.27 per sec.)
queries: 1126104689 (312774.25 per sec.)
ignored errors: 172646 (47.95 per sec.)
reconnects: 0 (0.00 per sec.)
General statistics:
total time: 3600.3729s
total number of events: 39605095
Latency (ms):
min: 0.29
avg: 5.81
max: 1388.75
95th percentile: 11.87
sum: 230276426.25
Threads fairness:
events (avg/stddev): 618829.6094/1712.80
execution time (avg/stddev): 3598.0692/0.06
flashback 閃回
主備切換
《PostgreSQL 一主多從(多副本,強同步)簡明手冊 - 配置、壓測、監控、切換、防腦裂、修復、0丟失 - 珍藏級》
修復主庫, pg_rewind
《PostgreSQL primary-standby failback tools : pg_rewind》
《PostgreSQL 9.5 new feature - pg_rewind fast sync Split Brain Primary & Standby》
《PostgreSQL 9.5 add pg_rewind for Fast align for PostgreSQL unaligned primary & standby》
小結
1、8K fsync IO RT
1 ecs本地ssd
22 us
2 essd
119 us
2、8K directIO
1 ecs本地ssd
離散讀
IOPS=146k, BW=1140MiB/s (1196MB/s)(200GiB/180004msec)
離散寫
IOPS=78.6k, BW=614MiB/s (644MB/s)(108GiB/180004msec)
順序讀
IOPS=147k, BW=1150MiB/s (1206MB/s)(202GiB/180004msec)
順序寫
IOPS=79.3k, BW=620MiB/s (650MB/s)(109GiB/180004m
2 essd
離散讀
IOPS=112k, BW=879MiB/s (922MB/s)(154GiB/180008msec)
離散寫
IOPS=60.6k, BW=473MiB/s (496MB/s)(83.2GiB/180008msec)
順序讀
IOPS=133k, BW=1037MiB/s (1087MB/s)(182GiB/180005msec)
順序寫
IOPS=71.4k, BW=558MiB/s (585MB/s)(98.1GiB/180005msec)
3、tpcc 1000W (ESSD)
96.4萬 tpmC
4、tpcb 1000億 只讀 (ESSD)
1、活躍數據10億
QPS: 998818
2、活躍數據100億
QPS: 597877
3、活躍數據500億
QPS: 66678
4、活躍數據1000億
QPS: 67295
5、tpcb 1000億 讀寫 (ESSD)
1、活躍數據10億
TPS: 95119
QPS: 475595
2、活躍數據100億
TPS: 85278
QPS: 426390
3、活躍數據500億
TPS: 38301
QPS: 191505
4、活躍數據1000億
TPS: 35189
QPS: 175945
性能小結
環境：阿里雲 ECS + 32T ESSD
表SIZE: 12.5 TB 寫入耗時 25h52min
索引SIZE: 2 TB 創建耗時 10h50min
索引深度: 5級
| 單表數據量 | TEST CASE | QPS | TPS |
|---|---|---|---|
| 10 * 100W | tpcc 1000W | - | 96.4萬 tpmC |
| 10 * 100W | tpcc 1000W(同步多副本) | - | 66萬 tpmC |
| 1000億 | tpcb 活躍數據10億 只讀 | 998818 | 998818 |
| 1000億 | tpcb 活躍數據100億 只讀 | 597877 | 597877 |
| 1000億 | tpcb 活躍數據500億 只讀 | 66678 | 66678 |
| 1000億 | tpcb 活躍數據1000億 只讀 | 67295 | 67295 |
| 1000億 | tpcb 活躍數據10億 讀寫 | 475595 | 95119 |
| 1000億 | tpcb 活躍數據10億 讀寫(同步多副本) | 267160 | 53432 |
| 1000億 | tpcb 活躍數據100億 讀寫 | 426390 | 85278 |
| 1000億 | tpcb 活躍數據500億 讀寫 | 191505 | 38301 |
| 1000億 | tpcb 活躍數據1000億 讀寫 | 175945 | 35189 |
阿里雲ESSD的引入，結合PostgreSQL企業級開源數據庫(良好的性能、可管理海量數據、功能對齊Oracle，不僅ESSD層面提供多副本，同時數據庫層面也支持通過quorum based replication多副本提供金融級的可靠性，使用ZFS秒級快照，閃回等企業特性)，給企業大容量關係數據庫上雲提供了便利。
對於PG企業用戶，可以選擇阿里雲PG企業版PPAS，擁有以上所有特性的同時，提供ORACLE兼容性。
參考
ECS 本地SSD雲盤(8*1.8TB條帶)測試:
《PostgreSQL 100億 tpcb 性能 on ECS》
《PostgreSQL 11 tpcc 測試(103萬tpmC on ECS) - use sysbench-tpcc by Percona-Lab》
《(TPC-H測試 SF=10,SF=200) PostgreSQL 11 vs 10 vs Deepgreen》
《PostgreSQL 10 on ECS 實施 流複製備庫鏡像+自動快照備份+自動備份驗證+自動清理備份與歸檔 - 珍藏級》