Topic: Max concurrent connection for Apache as a module

[elavarasan]

Can any one help me

What is the maximum concurrent connection for Apache as a module because if i increase ThreadsPerChild into 1900. and then i'm not able to run more than 300 concurrent connection by using

ab.exe -c 340 -n 400 http://IPAddress/

Thanks,

[Kanashii]

Problem is with limit in Windows TCP

just type in Cmd:
reg add HKLM\System\CurrentControlSet\Services\HTTP\Parameters /v MaxConnections /t REG_DWORD /d 1000000

[elavarasan]

can you describe this more details because i want to do on live server. mine is windows server 2008 r2

[PipoDeClown]

you can find that info in
http://blogs.technet.com/b/winserverperformance/archive/2008/07/25/tuning-windows-server-2008-for-php.aspx
for IIS that is...

[elavarasan]

This one is for IIS7 but i'm using Apache as a handler on windows server 2008.

[Kanashii]

Nope read:

Http/MaxConnections

This parameter controls the maximum number of concurrent TCPIP connections that HTTP will allow.

[ Need restart ]

+

<IfModule mpm_winnt.c>
ThreadsPerChild 1920
#ThreadsPerChild 1700
MaxRequestsPerChild 0
</IfModule>

+

use fcgid + wincache

FcgidMaxRequestLen 131072
IPCConnectTimeout 12
PHP_Fix_Pathinfo_Enable 1
OutputBufferSize 64
ProcessLifeTime 0
FcgidConnectTimeout 15
FcgidErrorScanInterval 15
DefaultMaxClassProcessCount 0
FcgidProcessLifeTime 0
IdleTimeout 0
FcgidZombieScanInterval 0
FcgidIdleScanInterval 900000000000000
FcgidTimeScore 9000000000000
FcgidSpawnScore 1
FcgidTerminationScore 10
FcgidSpawnScoreUpLimit 10
FcgidBusyTimeout 12
FcgidBusyScanInterval 12
FcgidIdleTimeout 9000000
FcgidMaxProcesses 6
FcgidMinProcessesPerClass 0
FcgidMaxProcessesPerClass 240
FcgidMaxRequestsPerProcess 0
FcgidInitialEnv PHP_FCGI_MAX_REQUESTS 5000000000
MaxRequestsPerProcess 0
FcgidMaxRequestsPerProcess 0

+

Install hardenit.exe - run as windows xp compatibility mode
Install secureit.exe - run as windows xp compatibility mode

http://www.filebuzz.com/fileinfo/37714/Secure_It.html
http://www.filebuzz.com/fileinfo/32081/Harden_It.html

Enabled Apache caching

+

Disabled htaccess and move rules to httpd.conf




http://smallvoid.com/article/winnt-tcpip-max-limit.html

____

Ab.exe -n 10000 -c 500 :: graphic

Requests per second: 2062.50 [#/sec] (mean)
Time per request: 242.424 [ms] (mean)
Time per request: 0.485 [ms] (mean, across all concurrent requests)

ab.exe 10000 -c 500 :: PHP
Requests per second: 468.04 [#/sec] (mean)
Time per request: 2192.584 [ms] (mean)
Time per request: 4.385 [ms] (mean, across all concurrent requests)
Transfer rate: 2057.05 [Kbytes/sec] received