On 02/15/2011 13:46, Tony Mobily wrote:
Hi,I just realised I didn't give much info in my previous post about Apache's memory output. OK, here is more info. In httpd.conf I have: <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 20 ServerLimit 20 MaxClients 20 MaxRequestsPerChild 1500 </IfModule> It's a Linux box: [root@centos555208 etc]# uname -a Linux centos555208 2.6.18-164.11.1.el5 #1 SMP Wed Jan 20 07:32:21 EST 2010 x86_64 x86_64 x86_64 GNU/Linux [root@centos555208 etc]# [Tue Feb 15 04:45:01 2011] [notice] Graceful restart requested, doing restart Warning: DocumentRoot [/home/www/drupal/drigg-distr-TEST] does not exist [Tue Feb 15 04:45:03 2011] [notice] Digest: generating secret for digest authentication ... [Tue Feb 15 04:45:03 2011] [notice] Digest: done [eAccelerator] This build of "eAccelerator" was compiled for PHP version 5.2.13. Rebuild it for your PHP version (5.2.11) or download precompiled binaries. [Tue Feb 15 04:45:03 2011] [notice] mod_python: Creating 4 session mutexes based on 20 max processes and 0 max threads. [Tue Feb 15 04:45:03 2011] [notice] mod_python: using mutex_directory /tmp [Tue Feb 15 04:45:03 2011] [notice] Apache/2.2.14 (Unix) DAV/2 mod_auth_kerb/5.1 mod_auth_pgsql/2.0.3 mod_nss/2.2.3 NSS/3.12.4.1 Basic ECC Beta PHP/5.2.11 mod_python/3.3.1 Python/2.4.3 mod_ssl/2.2.14 OpenSSL/0.9.8e-fips-rhel5 mod_perl/2.0.4 Perl/v5.8.8 configured -- resuming normal operations And I am still getting this with top: [root@centos555208 httpd]# top top - 04:46:03 up 48 days, 9:14, 1 user, load average: 0.56, 0.36, 0.31 Tasks: 134 total, 1 running, 133 sleeping, 0 stopped, 0 zombie Cpu(s): 3.2%us, 0.6%sy, 0.0%ni, 95.9%id, 0.2%wa, 0.0%hi, 0.1%si, 0.0%st Mem: 8072080k total, 5552744k used, 2519336k free, 67364k buffers Swap: 1959888k total, 1959824k used, 64k free, 1274184k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 19067 apache 15 0 5570m 2.9g 3476 S 6.7 37.8 0:01.36 httpd 19060 apache 15 0 5570m 2.9g 3340 S 5.0 37.7 0:00.23 httpd 19089 apache 15 0 5570m 2.9g 3380 S 1.0 37.8 0:00.27 httpd 2821 mysql 15 0 481m 105m 3612 S 0.7 1.3 3283:09 mysqld 19059 apache 16 0 5570m 2.9g 3412 S 0.7 37.8 0:00.34 httpd 19064 apache 15 0 5570m 2.9g 3484 S 0.7 37.8 0:00.82 httpd 19073 apache 15 0 5570m 2.9g 3148 S 0.3 37.7 0:00.08 httpd 19077 apache 15 0 5570m 2.9g 3440 S 0.3 37.8 0:00.43 httpd 1 root 15 0 10348 600 572 S 0.0 0.0 0:11.87 init 2 root RT -5 0 0 0 S 0.0 0.0 0:00.14 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/0 4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 3Gb for a process seems a _little_ excessive!
I suggest that you run1) PHP in FCGI mod with a fixed number of processes (for example NCPU + 1), and with PHP_FCGI_MAX_REQUESTS=10000 and,
2) Apache with mpm_worker instead of mpm_prefork
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