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+--- Thread: Sometimes php5 process stress cpu (/thread-3826.html)
Sometimes php5 process stress cpu - Lordek - 07-22-2008 08:20 AM
Sometimes in some oscommerce websites the php5 process takes the 90% CPU indefinitely.
When i watch the processes with ps aux or htop i can only see the /usr/bin/php5 but not the .php file that cause this overload.
How can i see wich scripts are doing this?
RE: Sometimes php5 process stress cpu - bulforce - 07-22-2008 02:09 PM
i host around 15 blog sites... all using wordpress
What i notice is that every once in a while (lets say couple of days) the server get under very high cpu load... average CPU 70~80%
with "top" i can see a lot of php5-cgi processes and some of them shows [defunct]. I am kind of new to linux and so far the only way to fix this is to write killall php5-cgi which is helping for a while but then its happening again.
Can somebody tell me how can see which php file exactly is causing this high load, so i can dig into that issue... i mean some freak "ps dsuaby | grep -dkjsahu" command maybe.
System infomation
Pentium 4 3GHz
1GB ram
100 MBps uplink
Debian 4.0
ispCP 1.0.0 RC4 OMEGA
build: 20080308
Priamos
Thank you
RE: Sometimes php5 process stress cpu - Lordek - 07-28-2008 08:40 AM
any idea?
RE: Sometimes php5 process stress cpu - Lordek - 08-05-2008 05:55 AM
Hi!
bulforce try with "lsof | grep PID" where PID is the process id of php5 process you want to track
RE: Sometimes php5 process stress cpu - BioALIEN - 08-06-2008 12:30 PM
This is a well documented issue with php5. I think it should be fixed in php5.2.6 so update/upgrade your packages.
Search the forum for similar topics as this has been discussed with solutions being proposed.
RE: Sometimes php5 process stress cpu - gutek - 08-08-2008 08:56 PM
i have the same problem.
lsof:
Code:
php5-cgi 11501 vu2006 cwd DIR 8,9 4096 1114121 /var/www/fcgi/hej.org
php5-cgi 11501 vu2006 rtd DIR 8,1 1024 2 /
php5-cgi 11501 vu2006 txt REG 8,2 5174028 197129 /usr/bin/php5-cgi
php5-cgi 11501 vu2006 mem REG 0,0 0 [heap] (stat: No such file or directory)
php5-cgi 11501 vu2006 mem REG 8,1 38372 48345 /lib/tls/i686/cmov/libnss_files-2.3.6.so
php5-cgi 11501 vu2006 mem REG 8,2 125600 180394 /usr/lib/php5/20060613+lfs/suhosin.so
php5-cgi 11501 vu2006 mem REG 8,2 95048 180393 /usr/lib/php5/20060613+lfs/pgsql.so
php5-cgi 11501 vu2006 mem REG 8,2 119408 164362 /usr/lib/libpq.so.4.1
php5-cgi 11501 vu2006 mem REG 8,2 22636 180392 /usr/lib/php5/20060613+lfs/pdo_pgsql.so
php5-cgi 11501 vu2006 mem REG 8,2 23556 180391 /usr/lib/php5/20060613+lfs/pdo_mysql.so
php5-cgi 11501 vu2006 mem REG 8,2 80496 180390 /usr/lib/php5/20060613+lfs/pdo.so
php5-cgi 11501 vu2006 mem REG 8,2 98352 180389 /usr/lib/php5/20060613+lfs/mysqli.so
php5-cgi 11501 vu2006 mem REG 8,2 1933648 164302 /usr/lib/libmysqlclient.so.15.0.0
php5-cgi 11501 vu2006 mem REG 8,2 44904 180388 /usr/lib/php5/20060613+lfs/mysql.so
php5-cgi 11501 vu2006 mem REG 8,2 27492 164384 /usr/lib/libungif.so.4.1.4
php5-cgi 11501 vu2006 mem REG 8,2 281944 164300 /usr/lib/libming.so.0.3.0
php5-cgi 11501 vu2006 mem REG 8,2 101836 180387 /usr/lib/php5/20060613+lfs/ming.so
php5-cgi 11501 vu2006 mem REG 8,2 293632 164299 /usr/lib/libmhash.so.2.0.0
php5-cgi 11501 vu2006 mem REG 8,2 23520 164287 /usr/lib/libltdl.so.3.1.4
php5-cgi 11501 vu2006 mem REG 8,2 162672 164295 /usr/lib/libmcrypt.so.4.4.7
php5-cgi 11501 vu2006 mem REG 8,2 31464 180385 /usr/lib/php5/20060613+lfs/mcrypt.so
php5-cgi 11501 vu2006 mem REG 8,1 29700 48350 /lib/libpam.so.0.79
php5-cgi 11501 vu2006 mem REG 8,2 772960 164227 /usr/lib/libc-client.so.2002edebian.1
php5-cgi 11501 vu2006 mem REG 8,2 90136 180384 /usr/lib/php5/20060613+lfs/imap.so
php5-cgi 11501 vu2006 mem REG 8,2 126624 164245 /usr/lib/libexpat.so.1.0.0
php5-cgi 11501 vu2006 mem REG 8,2 16672 164213 /usr/lib/libXdmcp.so.6.0.0
php5-cgi 11501 vu2006 mem REG 8,2 7220 164212 /usr/lib/libXau.so.6.0.0
php5-cgi 11501 vu2006 mem REG 8,2 176036 164247 /usr/lib/libfontconfig.so.1.2.0
php5-cgi 11501 vu2006 mem REG 8,1 89370 48353 /lib/tls/i686/cmov/libpthread-2.3.6.so
php5-cgi 11501 vu2006 mem REG 8,2 127488 164278 /usr/lib/libjpeg.so.62.0.0
php5-cgi 11501 vu2006 mem REG 8,2 137760 164356 /usr/lib/libpng12.so.0.15.0
php5-cgi 11501 vu2006 mem REG 8,2 60956 164215 /usr/lib/libXpm.so.4.11.0
php5-cgi 11501 vu2006 mem REG 8,2 965952 164211 /usr/lib/libX11.so.6.2.0
php5-cgi 11501 vu2006 mem REG 8,2 434840 164251 /usr/lib/libfreetype.so.6.3.10
php5-cgi 11501 vu2006 mem REG 8,2 253372 164380 /usr/lib/libt1.so.5.1.0
php5-cgi 11501 vu2006 mem REG 8,2 243480 165947 /usr/lib/libgd.so.2.0.33
php5-cgi 11501 vu2006 mem REG 8,2 101984 180382 /usr/lib/php5/20060613+lfs/gd.so
php5-cgi 11501 vu2006 mem REG 8,2 196128 164272 /usr/lib/libidn.so.11.5.19
php5-cgi 11501 vu2006 mem REG 8,2 212988 164235 /usr/lib/libcurl.so.3.0.0
php5-cgi 11501 vu2006 mem REG 8,2 57096 180380 /usr/lib/php5/20060613+lfs/curl.so
php5-cgi 11501 vu2006 mem REG 8,9 982084 1294578 /var/www/virtual/hej.org/ioncube/ioncube_loader_lin_5.2.so
php5-cgi 11501 vu2006 mem REG 8,2 14504 164616 /usr/lib/libkrb5support.so.0.0
php5-cgi 11501 vu2006 mem REG 8,2 1270520 164815 /usr/lib/i686/cmov/libcrypto.so.0.9.8
php5-cgi 11501 vu2006 mem REG 8,1 1241392 48320 /lib/tls/i686/cmov/libc-2.3.6.so
php5-cgi 11501 vu2006 mem REG 8,2 1147196 164386 /usr/lib/libxml2.so.2.6.27
php5-cgi 11501 vu2006 mem REG 8,1 5820 48329 /lib/libcom_err.so.2.1
php5-cgi 11501 vu2006 mem REG 8,2 151252 164613 /usr/lib/libk5crypto.so.3.0
php5-cgi 11501 vu2006 mem REG 8,2 508328 164615 /usr/lib/libkrb5.so.3.2
php5-cgi 11501 vu2006 mem REG 8,2 111708 164612 /usr/lib/libgssapi_krb5.so.2.2
php5-cgi 11501 vu2006 mem REG 8,1 76548 48340 /lib/tls/i686/cmov/libnsl-2.3.6.so
php5-cgi 11501 vu2006 mem REG 8,1 9592 48331 /lib/tls/i686/cmov/libdl-2.3.6.so
php5-cgi 11501 vu2006 mem REG 8,1 145136 48334 /lib/tls/i686/cmov/libm-2.3.6.so
php5-cgi 11501 vu2006 mem REG 8,1 67364 48356 /lib/tls/i686/cmov/libresolv-2.3.6.so
php5-cgi 11501 vu2006 mem REG 8,1 66200 48324 /lib/libbz2.so.1.0.3
php5-cgi 11501 vu2006 mem REG 8,2 1023476 164238 /usr/lib/libdb-4.4.so
php5-cgi 11501 vu2006 mem REG 8,2 151564 164353 /usr/lib/libpcre.so.3.12.0
php5-cgi 11501 vu2006 mem REG 8,2 253120 164816 /usr/lib/i686/cmov/libssl.so.0.9.8
php5-cgi 11501 vu2006 mem REG 8,2 78500 164388 /usr/lib/libz.so.1.2.3
php5-cgi 11501 vu2006 mem REG 8,1 21868 48328 /lib/tls/i686/cmov/libcrypt-2.3.6.so
php5-cgi 11501 vu2006 mem REG 8,2 7160 180386 /usr/lib/php5/20060613+lfs/mhash.so
php5-cgi 11501 vu2006 mem REG 8,1 88164 48609 /lib/ld-2.3.6.so
php5-cgi 11501 vu2006 0u unix 0xdd63ae40 22442966 /var/lib/apache2/fastcgi2/dynamic/98d006db49362202792ba2b121d6b38a
php5-cgi 11501 vu2006 1w REG 8,7 1080595 211992 /var/log/apache2/error.log
php5-cgi 11501 vu2006 2w REG 8,7 1080595 211992 /var/log/apache2/error.logand strace:
Code:
child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb78ce708) = 3146
[pid 3146] rt_sigaction(SIGTERM, {0x83203f0, [], 0}, NULL, 8) = 0
[pid 3146] rt_sigaction(SIGQUIT, {SIG_DFL}, NULL, 8) = 0
[pid 3146] rt_sigaction(SIGINT, {SIG_DFL}, NULL, 8) = 0
[pid 3146] munmap(0xb7038000, 98196) = 0
[pid 3146] munmap(0xb706d000, 21572) = 0
[pid 3146] munmap(0xb7050000, 118380) = 0
[pid 3146] munmap(0xb7073000, 26532) = 0
[pid 3146] munmap(0xb707a000, 79932) = 0
[pid 3146] munmap(0xb708e000, 102048) = 0
[pid 3146] munmap(0xb7281000, 48032) = 0
[pid 3146] munmap(0xb70a7000, 1940224) = 0
[pid 3146] munmap(0xb72dd000, 104996) = 0
[pid 3146] munmap(0xb7295000, 293584) = 0
[pid 3146] munmap(0xb728d000, 30512) = 0
[pid 3146] munmap(0xb7f23000, 10172) = 0
[pid 3146] munmap(0xb72f7000, 292496) = 0
[pid 3146] munmap(0xb7379000, 34492) = 0
[pid 3146] munmap(0xb734b000, 184704) = 0
[pid 3146] munmap(0xb7344000, 26584) = 0
[pid 3146] munmap(0xb7448000, 93280) = 0
[pid 3146] munmap(0xb738a000, 777552) = 0
[pid 3146] munmap(0xb7382000, 32656) = 0
[pid 3146] munmap(0xb7710000, 105012) = 0
[pid 3146] munmap(0xb76c0000, 325144) = 0
[pid 3146] munmap(0xb766d000, 338392) = 0
[pid 3146] munmap(0xb7487000, 175460) = 0
[pid 3146] munmap(0xb7603000, 433700) = 0
[pid 3146] munmap(0xb7507000, 63836) = 0
[pid 3146] munmap(0xb7517000, 966364) = 0
[pid 3146] munmap(0xb74e4000, 140716) = 0
[pid 3146] munmap(0xb74c4000, 130444) = 0
[pid 3146] munmap(0xb7484000, 10164) = 0
[pid 3146] munmap(0xb747f000, 19604) = 0
[pid 3146] munmap(0xb745f000, 129528) = 0
[pid 3146] munmap(0xb778f000, 56020 <unfinished ...>
[pid 11501] --- SIGCHLD (Child exited) @ 0 (0) ---
[pid 11501] wait4(-1, Process 11501 suspended
<unfinished ...>
[pid 3146] <... munmap resumed> ) = 0
[pid 3146] munmap(0xb775a000, 216316) = 0
[pid 3146] munmap(0xb772a000, 194988) = 0
[pid 3146] munmap(0xb779d000, 981648) = 0
[pid 3146] munmap(0xb7018000, 129224) = 0
[pid 3146] exit_group(0) = ?
Process 11501 resumed
Process 3146 detached
<... wait4 resumed> [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 3145
clone(Process 3147 attached
child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb78ce708) = 3147
[pid 3147] rt_sigaction(SIGTERM, {0x83203f0, [], 0}, NULL, 8) = 0
[pid 3147] rt_sigaction(SIGQUIT, {SIG_DFL}, NULL, 8) = 0
[pid 3147] rt_sigaction(SIGINT, {SIG_DFL}, NULL, 8) = 0
[pid 3147] munmap(0xb7038000, 98196) = 0
[pid 3147] munmap(0xb706d000, 21572) = 0
[pid 3147] munmap(0xb7050000, 118380) = 0
[pid 3147] munmap(0xb7073000, 26532) = 0
[pid 3147] munmap(0xb707a000, 79932) = 0
[pid 3147] munmap(0xb708e000, 102048) = 0
[pid 3147] munmap(0xb7281000, 48032) = 0
[pid 3147] munmap(0xb70a7000, 1940224) = 0
[pid 3147] munmap(0xb72dd000, 104996) = 0
[pid 3147] munmap(0xb7295000, 293584) = 0
[pid 3147] munmap(0xb728d000, 30512) = 0
[pid 3147] munmap(0xb7f23000, 10172) = 0
[pid 3147] munmap(0xb72f7000, 292496) = 0
[pid 3147] munmap(0xb7379000, 34492) = 0
[pid 3147] munmap(0xb734b000, 184704) = 0
[pid 3147] munmap(0xb7344000, 26584) = 0
[pid 3147] munmap(0xb7448000, 93280) = 0
[pid 3147] munmap(0xb738a000, 777552) = 0
[pid 3147] munmap(0xb7382000, 32656) = 0
[pid 3147] munmap(0xb7710000, 105012) = 0
[pid 3147] munmap(0xb76c0000, 325144 <unfinished ...>
Process 11501 detached
Process 3147 detachedI use Debian Eth up-to-date and ISP RC5
I need to check work arounds from http://www.isp-control.net/forum/high-load-on-ispcp-server-t-1103.html or in RC6 problem is Solved?
RE: Sometimes php5 process stress cpu - ephigenie - 08-08-2008 09:25 PM
which php5 version are you using ?
Just because there were some issues with some php versions not killing their child processes when they ought to ...
Also : Do you use any kind of php accelerator like Ea , xcache, apc, ZendOptimizer ?
RE: Sometimes php5 process stress cpu - gutek - 08-09-2008 12:59 AM
ephigenie Wrote:which php5 version are you using ?
Just because there were some issues with some php versions not killing their child processes when they ought to ...
Also : Do you use any kind of php accelerator like Ea , xcache, apc, ZendOptimizer ?
Code:
dpkg -l | grep php5-cgi
ii php5-cgi 5.2.0-8+etch11 server-side, HTML-embedded scripting languagI dont use php accelerators.
RE: Sometimes php5 process stress cpu - Lordek - 08-11-2008 12:58 AM
I dont use accelerators, only the etch version of php5
RE: Sometimes php5 process stress cpu - ramires - 09-03-2008 05:02 PM
i have same problem
top - 10:00:44 up 6 days, 1:07, 2 users, load average: 8.11, 8.20, 8.06
Tasks: 150 total, 8 running, 134 sleeping, 0 stopped, 8 zombie
Cpu(s): 32.7%us, 67.3%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1048724k total, 977724k used, 71000k free, 27996k buffers
Swap: 1048568k total, 20k used, 1048548k free, 538324k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
13331 vu2062 25 0 19440 5956 4132 R 2.3 0.6 50:31.00 php5-cgi
13326 vu2024 25 0 19444 5960 4132 R 0.7 0.6 46:32.22 php5-cgi
16655 vu2024 25 0 0 0 0 Z 0.3 0.0 0:00.01 php5-cgi <defunct>
16657 vu2024 25 0 0 0 0 Z 0.3 0.0 0:00.01 php5-cgi <defunct>
16682 vu2024 25 0 19336 2640 820 R 0.3 0.3 0:00.01 php5-cgi
16685 vu2024 24 0 0 0 0 Z 0.3 0.0 0:00.01 php5-cgi <defunct>
16687 vu2024 24 0 0 0 0 Z 0.3 0.0 0:00.01 php5-cgi <defunct>
same php5 version
version of omega RC6
i found a solution work like a charm...
http://www.isp-control.net/forum/high-load-on-ispcp-server-t-1103-4.html