You can try taking look to lighttpd status and fcgi processes status
like this:
server.modules += ( "mod_status" )
status.status-url = "/server-status"
status.statistics-url = "/sstatus1"

status.statistics-url gives info for each fastcgi like this:

fastcgi.active-requests: 0
fastcgi.backend.backend1.0.connected: 12493970
fastcgi.backend.backend1.0.died: 0
fastcgi.backend.backend1.0.disabled: 0
fastcgi.backend.backend1.0.load: 0
fastcgi.backend.backend1.0.overloaded: 0
fastcgi.backend.backend1.load: 1
fastcgi.requests: 19479062


etc... read what each means on lighttpd site...
pls tell what caused this, it'd be very interesting to me!

cheers,
valqk.

Ken Chen wrote:
> I capture something.
>
> Please check the PID 57776. It's CPU time never change since my previous
> mail here.
>
> web4# ps alx | grep php-cgi | grep -v grep | grep sbwait
> 65534 57776 47240 0 4 0 182328 84984 sbwait I ?? 2:02.12
> /usr/local/bin/php-cgi
> 65534 57801 47240 0 4 0 182328 82408 sbwait I ?? 0:19.97
> /usr/local/bin/php-cgi
> 65534 57809 47240 0 4 0 182328 84096 sbwait I ?? 1:12.03
> /usr/local/bin/php-cgi
> 65534 57823 47240 0 4 0 182328 84492 sbwait I ?? 2:04.21
> /usr/local/bin/php-cgi
> 65534 57833 47240 0 4 0 183352 83316 sbwait I ?? 0:28.62
> /usr/local/bin/php-cgi
> 65534 57866 47240 0 4 0 182328 79952 sbwait I ?? 0:05.92
> /usr/local/bin/php-cgi
> 65534 57870 47240 0 4 0 182328 83184 sbwait I ?? 0:56.83
> /usr/local/bin/php-cgi
> 65534 57871 47240 0 4 0 182328 83388 sbwait I ?? 0:54.96
> /usr/local/bin/php-cgi
> 65534 57891 47240 0 4 0 182328 84436 sbwait I ?? 1:58.32
> /usr/local/bin/php-cgi
> 65534 57925 47240 0 4 0 182328 84380 sbwait I ?? 2:03.53
> /usr/local/bin/php-cgi
> 65534 65944 47240 0 4 0 182328 84184 sbwait I ?? 0:39.97
> /usr/local/bin/php-cgi
> 65534 65952 47240 0 4 0 182328 84408 sbwait I ?? 0:21.37
> /usr/local/bin/php-cgi
> 65534 66007 47240 0 4 0 183352 90960 sbwait I ?? 1:16.81
> /usr/local/bin/php-cgi
> 65534 66014 47240 5 4 0 182328 92748 sbwait S ?? 1:41.23
> /usr/local/bin/php-cgi
> 65534 66038 47240 1 4 0 182328 91900 sbwait I ?? 1:38.04
> /usr/local/bin/php-cgi
> 65534 66060 47240 0 4 0 182328 90048 sbwait I ?? 1:15.46
> /usr/local/bin/php-cgi
> 65534 66078 47240 3 4 0 182328 92224 sbwait S ?? 1:39.66
> /usr/local/bin/php-cgi
> web4# top -b
> last pid: 70768; load averages: 1.62, 1.65, 1.43 up 4+15:56:06
> 22:53:48
> 85 processes: 1 running, 84 sleeping
>
> Mem: 492M Active, 1204M Inact, 218M Wired, 60M Cache, 112M Buf, 27M Free
> Swap: 2019M Total, 20K Used, 2019M Free
>
>
> PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
> 69544 nobody 1 8 0 203M 38500K nanslp 1 6:31 11.33% php
> 47290 nobody 1 4 0 101M 98M kqread 1 30:42 2.98% lighttpd
> 66526 nobody 1 4 0 178M 92796K accept 1 1:40 1.12% php-cgi
> 66077 nobody 1 4 0 178M 92512K accept 0 1:49 1.07% php-cgi
> 65921 nobody 1 4 0 178M 92696K accept 0 1:43 0.98% php-cgi
> 65968 nobody 1 4 0 178M 92484K accept 0 1:43 0.93% php-cgi
> 66017 nobody 1 4 0 178M 92444K accept 0 1:50 0.88% php-cgi
> 65979 nobody 1 4 0 178M 92676K accept 1 1:44 0.88% php-cgi
> 66424 nobody 1 4 0 178M 92928K accept 1 1:36 0.88% php-cgi
> 65938 nobody 1 4 0 178M 92336K accept 1 1:52 0.73% php-cgi
> 65951 nobody 1 4 0 178M 92704K accept 0 1:48 0.73% php-cgi
> 66016 nobody 1 4 0 178M 92232K accept 1 1:41 0.73% php-cgi
> 65950 nobody 1 4 0 178M 93192K accept 0 1:51 0.68% php-cgi
> 65999 nobody 1 4 0 178M 92940K accept 1 1:46 0.63% php-cgi
> 66008 nobody 1 4 0 178M 93000K accept 1 1:46 0.63% php-cgi
> 69286 nobody 1 4 0 178M 92208K accept 1 0:37 0.63% php-cgi
> 47289 nobody 1 4 0 73400K 70640K kqread 1 12:02 0.59% lighttpd
> 65980 nobody 1 4 0 178M 93156K accept 1 1:51 0.59% php-cgi
> 2008/11/7 Ivan Voras
>
>
>> Ken Chen wrote:
>>
>>> Oh.. sorry, I forgot to provide the information of my environment.
>>>
>>> web4# php-cgi -v
>>> PHP 5.2.6 (cgi-fcgi) (built: Nov 2 2008 11:16:30)
>>> Copyright (c) 1997-2008 The PHP Group
>>> Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend Technologies
>>> with XCache v1.2.2, Copyright (c) 2005-2007, by mOo
>>> web4# /usr/local/lighttpd/sbin/lighttpd -v
>>> lighttpd-1.4.19 - a light and fast webserver
>>> Build-Date: Sep 1 2008 16:58:51
>>> web4# uname -a
>>> FreeBSD web4.xxxx.com 7.0-RELEASE-p5 FreeBSD 7.0-RELEASE-p5 #11: Mon Nov
>>>

>> 3
>>
>>> 01:10:36 CST 2008 root@web4.xxxx.com:/usr/obj/usr/src/sys/WEB4 i386
>>> web4# ps alx | grep php-cgi | grep -v grep | grep sbwait
>>> 65534 57776 47240 0 4 0 182328 84984 sbwait I ?? 2:02.12
>>> /usr/local/bin/php-cgi
>>> 65534 57801 47240 0 4 0 182328 82408 sbwait I ?? 0:19.97
>>> /usr/local/bin/php-cgi
>>> 65534 57809 47240 0 4 0 182328 84096 sbwait I ?? 1:12.03
>>> /usr/local/bin/php-cgi
>>> 65534 57823 47240 0 4 0 182328 84492 sbwait I ?? 2:04.21
>>> /usr/local/bin/php-cgi
>>> 65534 57833 47240 0 4 0 183352 83316 sbwait I ?? 0:28.62
>>> /usr/local/bin/php-cgi
>>> 65534 57866 47240 0 4 0 182328 79952 sbwait I ?? 0:05.92
>>> /usr/local/bin/php-cgi
>>> 65534 57870 47240 0 4 0 182328 83184 sbwait I ?? 0:56.83
>>> /usr/local/bin/php-cgi
>>> 65534 57871 47240 0 4 0 182328 83388 sbwait I ?? 0:54.96
>>> /usr/local/bin/php-cgi
>>> 65534 57891 47240 0 4 0 182328 84436 sbwait I ?? 1:58.32
>>> /usr/local/bin/php-cgi
>>> 65534 57925 47240 0 4 0 182328 84380 sbwait I ?? 2:03.53
>>> /usr/local/bin/php-cgi
>>> 65534 65944 47240 0 4 0 182328 84184 sbwait I ?? 0:39.97
>>> /usr/local/bin/php-cgi
>>> 65534 65952 47240 0 4 0 182328 84408 sbwait I ?? 0:21.37
>>> /usr/local/bin/php-cgi
>>>

>> This does seem a bit unusual, but seeing that your execution times are
>> not null it might that the PHP servers are actually doing some useful
>> work. You should have a mixture of various states in PHP - do they show
>> up in top?
>>
>> My own example is:
>>
>> last pid: 77421; load averages: 2.82, 2.59, 2.13
>> up
>> 55+16:58:49 15:48:16
>> 209 processes: 2 running, 206 sleeping, 1 zombie
>> CPU: 49.8% user, 0.0% nice, 2.8% system, 0.0% interrupt, 47.4% idle
>> Mem: 1493M Active, 1583M Inact, 278M Wired, 139M Cache, 112M Buf, 505M Free
>> Swap: 4500M Total, 416M Used, 4084M Free, 9% Inuse
>>
>> PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
>> 75863 www 1 4 0 162M 50020K sbwait 3 2:54 36.77% php-cgi
>> 76830 www 1 103 0 156M 41556K CPU2 3 1:28 36.77% php-cgi
>> 76834 www 1 4 0 163M 56628K sbwait 0 2:23 33.59% php-cgi
>> 76019 www 1 4 0 150M 38948K accept 3 3:12 20.56% php-cgi
>> 76825 www 1 4 0 158M 42912K accept 2 1:21 18.16% php-cgi
>> 76846 www 1 4 0 162M 42600K sbwait 1 1:07 14.36% php-cgi
>> 76835 www 1 4 0 151M 39948K accept 2 1:28 12.60% php-cgi
>> 76829 www 1 4 0 150M 36564K sbwait 2 1:46 2.98% php-cgi
>>
>> This is unusually high load, a spike, for this server but it has many
>> cores and it's stable. It's also running 7.1-PRERELEASE.
>>
>>
>>

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