tomcat 優化到每秒併發1000

現在系統部署只能達到240+ , tomcat + apache 也只能到 900 + ，看到robbin的發帖能達到1000 ，不知道該如何配置，特來請教：

http://www.javaeye.com/post/370111?page=8

robbin 寫道

既然你用tomcat4都可以達到併發600，那tomcat5.5在同樣環境下經過調優完全可以達到1000，看來問題還是在於你們tomcat沒有配置好。

附帶環境配置如下：

環境配置如下: （jdk沒有用 -server）

Java代碼

windows 2003 企業版 sp2
Intel(R) Xeon(R) 4 CPU 5130 @ 2.0GHz 4.00GB 內存
apache_2.2.8-win32-x86
mod_jk-apache-2.0.59
jdk-1_5_0_14-windows-i586-p.exe -client
Tomcat-6.0.16 + apr

windows 2003 企業版 sp2

Intel(R) Xeon(R) 4 CPU 5130 @ 2.0GHz 4.00GB 內存

apache_2.2.8-win32-x86

mod_jk-apache-2.0.59

jdk-1_5_0_14-windows-i586-p.exe -client

Tomcat-6.0.16 + apr

server.xml

Xml代碼

<Executor name="tomcatThreadPool" namePrefix="catalina-exec-" maxThreads="2000" minSpareThreads="1000"/>
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="2000"
redirectPort="8443" enableLookups="false"
acceptCount="5000" maxThreads="2000"/>

 
    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-" maxThreads="2000" minSpareThreads="1000"/>
    

    <Connector port="8080" protocol="HTTP/1.1" 
               connectionTimeout="2000" 
               redirectPort="8443"  enableLookups="false" 
			   acceptCount="5000" maxThreads="2000"/>

catalina.bat

Java代碼

set JAVA_OPTS=-Xms1400m -Xmx1400m -Djava.awt.headless=true

set JAVA_OPTS=-Xms1400m -Xmx1400m -Djava.awt.headless=true

index.jsp (除了下面這些代碼，還有200行html代碼，沒有一個圖片)

Java代碼

<%
for(int i=0;i<1000;i++){
request.setAttribute("key_"+i,"value_"+i);
}
for(int i=0;i<100;i++){
request.getSession().setAttribute("key_"+i,"value_"+i);
}
%>
<br />
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>

<%
for(int i=0;i<1000;i++){
   request.setAttribute("key_"+i,"value_"+i);	
}


for(int i=0;i<100;i++){
   request.getSession().setAttribute("key_"+i,"value_"+i);	
}
%>
<br />
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>
<%=request.getSession().getAttribute("key_0")%>

tomat 啓動信息如下：

Java代碼

2008-5-6 17:54:52 org.apache.catalina.core.AprLifecycleListener init
信息: Loaded APR based Apache Tomcat Native library 1.1.10.
2008-5-6 17:54:52 org.apache.catalina.core.AprLifecycleListener init
信息: APR capabilities: IPv6 [false], sendfile [true], accept filters [false], r
andom [true].
2008-5-6 17:54:52 org.apache.coyote.http11.Http11AprProtocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2008-5-6 17:54:52 org.apache.coyote.ajp.AjpAprProtocol init
信息: Initializing Coyote AJP/1.3 on ajp-30008
2008-5-6 17:54:52 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 973 ms
2008-5-6 17:54:52 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2008-5-6 17:54:52 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.16
2008-5-6 17:54:52 org.apache.coyote.http11.Http11AprProtocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2008-5-6 17:54:53 org.apache.coyote.ajp.AjpAprProtocol start
信息: Starting Coyote AJP/1.3 on ajp-30008
2008-5-6 17:54:53 org.apache.catalina.startup.Catalina start
信息: Server startup in 310 ms

2008-5-6 17:54:52 org.apache.catalina.core.AprLifecycleListener init
信息: Loaded APR based Apache Tomcat Native library 1.1.10.
2008-5-6 17:54:52 org.apache.catalina.core.AprLifecycleListener init
信息: APR capabilities: IPv6 [false], sendfile [true], accept filters [false], r
andom [true].
2008-5-6 17:54:52 org.apache.coyote.http11.Http11AprProtocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2008-5-6 17:54:52 org.apache.coyote.ajp.AjpAprProtocol init
信息: Initializing Coyote AJP/1.3 on ajp-30008
2008-5-6 17:54:52 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 973 ms
2008-5-6 17:54:52 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2008-5-6 17:54:52 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.16
2008-5-6 17:54:52 org.apache.coyote.http11.Http11AprProtocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2008-5-6 17:54:53 org.apache.coyote.ajp.AjpAprProtocol start
信息: Starting Coyote AJP/1.3 on ajp-30008
2008-5-6 17:54:53 org.apache.catalina.startup.Catalina start
信息: Server startup in 310 ms

-----------------------------------------------------------------------------------------

下面是測試結果：

tomcat + apache 測試結果:

Java代碼

D:/Apache2.2/bin>ab -n 10000 -c 800 http://127.0.0.1/index.jsp
Server Software: Apache/2.2.4
Server Hostname: 127.0.0.1
Server Port: 80
Document Path: /index.jsp
Document Length: 41078 bytes
Concurrency Level: 800
Time taken for tests: 34.46875 seconds
Complete requests: 10000
Failed requests: 0
Write errors: 0
Total transferred: 413090000 bytes
HTML transferred: 410780000 bytes
Requests per second: 293.71 [#/sec] (mean)
Time per request: 2723.750 [ms] (mean)
Time per request: 3.405 [ms] (mean, across all concurrent requests)
Transfer rate: 11848.61 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 1.8 0 15
Processing: 15 2034 3425.1 921 23265
Waiting: 0 2025 3423.8 921 23250
Total: 15 2034 3425.1 921 23265
Percentage of the requests served within a certain time (ms)
50% 921
66% 1343
75% 1656
80% 1875
90% 5078
95% 9421
98% 15828
99% 18171
100% 23265 (longest request)
D:/Apache2.2/bin>ab -n 10000 -c 1000 http://127.0.0.1/index.jsp
Server Software: Apache/2.2.4
Server Hostname: 127.0.0.1
Server Port: 80
Document Path: /index.jsp
Document Length: 323 bytes
Concurrency Level: 1000
Time taken for tests: 24.265625 seconds
Complete requests: 10000
Failed requests: 3953
(Connect: 0, Length: 3953, Exceptions: 0)
Write errors: 0
Non-2xx responses: 8686
Total transferred: 58651479 bytes
HTML transferred: 56541921 bytes
Requests per second: 412.11 [#/sec] (mean)
Time per request: 2426.563 [ms] (mean)
Time per request: 2.427 [ms] (mean, across all concurrent requests)
Transfer rate: 2360.38 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 1.7 0 15
Processing: 0 1573 4416.4 31 23984
Waiting: 0 1563 4402.5 31 23984
Total: 0 1573 4416.5 31 23984
Percentage of the requests served within a certain time (ms)
50% 31
66% 62
75% 62
80% 62
90% 7031
95% 13234
98% 18218
99% 19859
100% 23984 (longest request)

D:/Apache2.2/bin>ab -n 10000 -c 800 http://127.0.0.1/index.jsp

Server Software:        Apache/2.2.4
Server Hostname:        127.0.0.1
Server Port:            80

Document Path:          /index.jsp
Document Length:        41078 bytes

Concurrency Level:      800
Time taken for tests:   34.46875 seconds
Complete requests:      10000
Failed requests:        0
Write errors:           0
Total transferred:      413090000 bytes
HTML transferred:       410780000 bytes
Requests per second:    293.71 [#/sec] (mean)
Time per request:       2723.750 [ms] (mean)
Time per request:       3.405 [ms] (mean, across all concurrent requests)
Transfer rate:          11848.61 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   1.8      0      15
Processing:    15 2034 3425.1    921   23265
Waiting:        0 2025 3423.8    921   23250
Total:         15 2034 3425.1    921   23265

Percentage of the requests served within a certain time (ms)
  50%    921
  66%   1343
  75%   1656
  80%   1875
  90%   5078
  95%   9421
  98%  15828
  99%  18171
 100%  23265 (longest request)

D:/Apache2.2/bin>ab -n 10000 -c 1000 http://127.0.0.1/index.jsp

Server Software:        Apache/2.2.4
Server Hostname:        127.0.0.1
Server Port:            80

Document Path:          /index.jsp
Document Length:        323 bytes

Concurrency Level:      1000
Time taken for tests:   24.265625 seconds
Complete requests:      10000
Failed requests:        3953
   (Connect: 0, Length: 3953, Exceptions: 0)
Write errors:           0
Non-2xx responses:      8686
Total transferred:      58651479 bytes
HTML transferred:       56541921 bytes
Requests per second:    412.11 [#/sec] (mean)
Time per request:       2426.563 [ms] (mean)
Time per request:       2.427 [ms] (mean, across all concurrent requests)
Transfer rate:          2360.38 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   1.7      0      15
Processing:     0 1573 4416.4     31   23984
Waiting:        0 1563 4402.5     31   23984
Total:          0 1573 4416.5     31   23984

Percentage of the requests served within a certain time (ms)
  50%     31
  66%     62
  75%     62
  80%     62
  90%   7031
  95%  13234
  98%  18218
  99%  19859
 100%  23984 (longest request)

tomcat 單獨測試結果 (250併發會經常失敗，200比較正常，偶爾有少量錯誤):

Java代碼

D:/Apache2.2/bin>ab -n 1000 -c 250 http://127.0.0.1:8080/index.jsp
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Benchmarking 127.0.0.1 (be patient)
Completed 100 requests
Send request failed!
Send request failed!
Send request failed!
Send request failed!
Send request failed!
Completed 200 requests
Send request failed!
apr_socket_recv: 遠程主機強迫關閉了一個現有的連接。 (730054)
Total of 223 requests completed
D:/Apache2.2/bin>ab -n 1000 -c 250 http://127.0.0.1:8080/index.jsp
Server Software: Apache-Coyote/1.1
Server Hostname: 127.0.0.1
Server Port: 8080
Document Path: /index.jsp
Document Length: 41078 bytes
Concurrency Level: 250
Time taken for tests: 2.390625 seconds
Complete requests: 1000
Failed requests: 0
Write errors: 0
Total transferred: 41292000 bytes
HTML transferred: 41078000 bytes
Requests per second: 418.30 [#/sec] (mean)
Time per request: 597.656 [ms] (mean)
Time per request: 2.391 [ms] (mean, across all concurrent requests)
Transfer rate: 16867.56 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 1.9 0 15
Processing: 109 575 314.1 515 1218
Waiting: 62 550 315.0 453 1156
Total: 109 575 314.1 515 1218
Percentage of the requests served within a certain time (ms)
50% 515
66% 609
75% 921
80% 1031
90% 1062
95% 1125
98% 1140
99% 1140
100% 1218 (longest request)

D:/Apache2.2/bin>ab -n 1000 -c 250 http://127.0.0.1:8080/index.jsp
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 The Apache Software Foundation, http://www.apache.org/

Benchmarking 127.0.0.1 (be patient)
Completed 100 requests
Send request failed!
Send request failed!
Send request failed!
Send request failed!
Send request failed!
Completed 200 requests
Send request failed!
apr_socket_recv: 遠程主機強迫關閉了一個現有的連接。   (730054)
Total of 223 requests completed

D:/Apache2.2/bin>ab -n 1000 -c 250 http://127.0.0.1:8080/index.jsp

Server Software:        Apache-Coyote/1.1
Server Hostname:        127.0.0.1
Server Port:            8080

Document Path:          /index.jsp
Document Length:        41078 bytes

Concurrency Level:      250
Time taken for tests:   2.390625 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      41292000 bytes
HTML transferred:       41078000 bytes
Requests per second:    418.30 [#/sec] (mean)
Time per request:       597.656 [ms] (mean)
Time per request:       2.391 [ms] (mean, across all concurrent requests)
Transfer rate:          16867.56 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    0   1.9      0      15
Processing:   109  575 314.1    515    1218
Waiting:       62  550 315.0    453    1156
Total:        109  575 314.1    515    1218

Percentage of the requests served within a certain time (ms)
  50%    515
  66%    609
  75%    921
  80%   1031
  90%   1062
  95%   1125
  98%   1140
  99%   1140
 100%   1218 (longest request)

單獨測試tomcat基本上只能達到240+左右的併發，tomcat+apache 900+併發，如果是靜態頁面tomcat併發1000+沒有任何問題。

tomcat基本上都保持在 20% - 45% 之間，內存在 80M -- 600M +之間，根據併發和請求的大小，內存的變法比較明顯，cpu基本保存在這裏，apache佔用的cpu基本上是在 15% - 40%。

因爲JRockit收費，所以就沒有測試。（主要是真實部署的時候會採用這些配置，收費的公司目前也不會購買！^_^）

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