postgresql-10性能基準測試

本章節：基於linux系統、PostgreSQL-10單機環境下演示基準測試

>>>還沒裝PostgreSQL？點我教你3分鐘速裝<<<

一. 測試環境準備

1. 切換到安裝PostgreSQL自帶的用戶：postgres

su - postgres

2. 進入sql控制檯

psql

接着輸入數據庫賬戶postgres的密碼—[如果你沒改過密碼，那postgres的默認密碼爲postgres]
 

3. 創建名爲“testbench”的測試庫

create database testbench;

二. 用pgbench執行基準測試

1. 進入postgresql的bin目錄

cd /usr/pgsql-10/bin

2. 按這2個參數初始化表數據：

./pgbench -i -F100 -s10 -U postgres -p 5432 -h 127.0.0.1 testbench

此時可能要輸一次密碼，輸入數據庫賬戶postgres的密碼即可
 

3. 按這3個參數執行基準測試：1個線程、1個用戶、運行60秒

./pgbench -r -j1 -c1  -T60 -U postgres -h 127.0.0.1 testbench

此時可能要輸一次密碼，輸入數據庫賬戶postgres的密碼即可
 

三. 基準測試結果分析

starting vacuum...end.
transaction type: <builtin: TPC-B (sort of)>
scaling factor: 10
query mode: simple
number of clients: 1
number of threads: 1
duration: 60 s
number of transactions actually processed: 29383
latency average = 2.042 ms
tps = 489.714266 (including connections establishing)
tps = 489.762161 (excluding connections establishing)
script statistics:
 - statement latencies in milliseconds:
         0.003  \set aid random(1, 100000 * :scale)
         0.001  \set bid random(1, 1 * :scale)
         0.001  \set tid random(1, 10 * :scale)
         0.000  \set delta random(-5000, 5000)
         0.044  BEGIN;
         0.196  UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;
         0.146  SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
         0.159  UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid;
         0.144  UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid;
         0.115  INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);
         1.234  END;