tomcat 优化到每秒并发1000

现在系统部署只能达到240+ , tomcat + apache 也只能到 900 + ，看到robbin的发帖能达到1000 ，不知道该如何配置，特来请教：

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

robbin 写道

既然你用tomcat4都可以达到并发600，那tomcat5.5在同样环境下经过调优完全可以达到1000，看来问题还是在于你们tomcat没有配置好。

附带环境配置如下：

环境配置如下: （jdk没有用 -server）

windows2003企业版sp2

 Intel(R)Xeon(R)4CPU5130@2.0GHz4.00GB内存

 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 企业版 sp2

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

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

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


 <Connectorport="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

setJAVA_OPTS=-Xms1400m-Xmx1400m-Djava.awt.headless=true

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

index.jsp (除了下面这些代码，还有200行html代码，没有一个图片)

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


 for(inti=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 启动信息如下：

2008-5-617:54:52org.apache.catalina.core.AprLifecycleListenerinit
 信息:LoadedAPRbasedApacheTomcatNativelibrary1.1.10.
 2008-5-617:54:52org.apache.catalina.core.AprLifecycleListenerinit
 信息:APRcapabilities:IPv6[false],sendfile[true],acceptfilters[false],r
 andom[true].
 2008-5-617:54:52org.apache.coyote.http11.Http11AprProtocolinit
 信息:InitializingCoyoteHTTP/1.1onhttp-8080
 2008-5-617:54:52org.apache.coyote.ajp.AjpAprProtocolinit
 信息:InitializingCoyoteAJP/1.3onajp-30008
 2008-5-617:54:52org.apache.catalina.startup.Catalinaload
 信息:Initializationprocessedin973ms
 2008-5-617:54:52org.apache.catalina.core.StandardServicestart
信息:StartingserviceCatalina
 2008-5-617:54:52org.apache.catalina.core.StandardEnginestart
 信息:StartingServletEngine:ApacheTomcat/6.0.16
 2008-5-617:54:52org.apache.coyote.http11.Http11AprProtocolstart
 信息:StartingCoyoteHTTP/1.1onhttp-8080
 2008-5-617:54:53org.apache.coyote.ajp.AjpAprProtocolstart
 信息:StartingCoyoteAJP/1.3onajp-30008
 2008-5-617:54:53org.apache.catalina.startup.Catalinastart
 信息:Serverstartupin310ms

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

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

下面是测试结果：

tomcat + apache 测试结果:

D:\Apache2.2\bin>ab-n10000-c800http://127.0.0.1/index.jsp

 ServerSoftware:Apache/2.2.4
 ServerHostname:127.0.0.1
 ServerPort:80

DocumentPath:/index.jsp
 DocumentLength:41078bytes

 ConcurrencyLevel:800
 Timetakenfortests:34.46875seconds
 Completerequests:10000
 Failedrequests:0
 Writeerrors:0
 Totaltransferred:413090000bytes
 HTMLtransferred:410780000bytes
 Requestspersecond:293.71[#/sec](mean)
 Timeperrequest:2723.750[ms](mean)
 Timeperrequest:3.405[ms](mean,acrossallconcurrentrequests)
 Transferrate:11848.61[Kbytes/sec]received

ConnectionTimes(ms)
minmean[+/-sd]medianmax
 Connect:001.8015
 Processing:1520343425.192123265
 Waiting:020253423.892123250
 Total:1520343425.192123265

Percentageoftherequestsservedwithinacertaintime(ms)
 50%921
 66%1343
 75%1656
 80%1875
 90%5078
 95%9421
 98%15828
 99%18171
 100%23265(longestrequest)

 D:\Apache2.2\bin>ab-n10000-c1000http://127.0.0.1/index.jsp

 ServerSoftware:Apache/2.2.4
 ServerHostname:127.0.0.1
 ServerPort:80

DocumentPath:/index.jsp
 DocumentLength:323bytes

 ConcurrencyLevel:1000
 Timetakenfortests:24.265625seconds
 Completerequests:10000
 Failedrequests:3953
 (Connect:0,Length:3953,Exceptions:0)
 Writeerrors:0
 Non-2xxresponses:8686
 Totaltransferred:58651479bytes
 HTMLtransferred:56541921bytes
 Requestspersecond:412.11[#/sec](mean)
 Timeperrequest:2426.563[ms](mean)
 Timeperrequest:2.427[ms](mean,acrossallconcurrentrequests)
 Transferrate:2360.38[Kbytes/sec]received

ConnectionTimes(ms)
minmean[+/-sd]medianmax
 Connect:001.7015
 Processing:015734416.43123984
 Waiting:015634402.53123984
 Total:015734416.53123984

Percentageoftherequestsservedwithinacertaintime(ms)
 50%31
 66%62
 75%62
 80%62
 90%7031
 95%13234
 98%18218
 99%19859
 100%23984(longestrequest)

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 单独测试结果 (250并发会经常失败，200比较正常，偶尔有少量错误):

D:\Apache2.2\bin>ab-n1000-c250http://127.0.0.1:8080/index.jsp
 ThisisApacheBench,Version2.0.40-dev<$Revision:1.146$>apache-2.0
 Copyright1996AdamTwiss,ZeusTechnologyLtd,http://www.zeustech.net/
 Copyright2006TheApacheSoftwareFoundation,http://www.apache.org/

 Benchmarking127.0.0.1(bepatient)
 Completed100requests
Sendrequestfailed!
Sendrequestfailed!
Sendrequestfailed!
Sendrequestfailed!
Sendrequestfailed!
 Completed200requests
Sendrequestfailed!
 apr_socket_recv:远程主机强迫关闭了一个现有的连接。(730054)
 Totalof223requestscompleted

 D:\Apache2.2\bin>ab-n1000-c250http://127.0.0.1:8080/index.jsp

 ServerSoftware:Apache-Coyote/1.1
 ServerHostname:127.0.0.1
 ServerPort:8080

DocumentPath:/index.jsp
 DocumentLength:41078bytes

 ConcurrencyLevel:250
 Timetakenfortests:2.390625seconds
 Completerequests:1000
 Failedrequests:0
 Writeerrors:0
 Totaltransferred:41292000bytes
 HTMLtransferred:41078000bytes
 Requestspersecond:418.30[#/sec](mean)
 Timeperrequest:597.656[ms](mean)
 Timeperrequest:2.391[ms](mean,acrossallconcurrentrequests)
 Transferrate:16867.56[Kbytes/sec]received

ConnectionTimes(ms)
minmean[+/-sd]medianmax
 Connect:001.9015
 Processing:109575314.15151218
 Waiting:62550315.04531156
 Total:109575314.15151218

Percentageoftherequestsservedwithinacertaintime(ms)
 50%515
 66%609
 75%921
 80%1031
 90%1062
 95%1125
 98%1140
 99%1140
 100%1218(longestrequest)

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: 远程主机强迫关闭了一个现有的连接。   (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)

单独测试tomcat基本上只能达到240+左右的并发，tomcat+apache 900+并发，如果是静态页面tomcat并发1000+没有任何问题。

tomcat基本上都保持在 20% - 45% 之间 ， 内存在 80M -- 600M +之间 ，根据并发和请求的大小，内存的变法比较明显，cpu基本保存在这里，apache占用的cpu基本上是在 15% - 40%。

因为JRockit收费，所以就没有测试。（主要是真实部署的时候会采用这些配置，收费的公司目前也不会购买！^_^）