Date: Sun, 09 Nov 2008 20:07:48 +0200 From: Anton - Valqk <lists@lozenetz.org> To: Ken Chen <ken73.chen@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: php-cgi frozen with sbwait when SMP enable Message-ID: <491726F4.4040808@lozenetz.org> In-Reply-To: <d018a9bd0811070708r1479656bk46e9c21295cce6ba@mail.gmail.com> References: <d018a9bd0811070329s30b463b0m6885e1f568217b89@mail.gmail.com> <gf1bc5$lbu$1@ger.gmane.org> <d018a9bd0811070610t6eaa5b08l4b59cc1857e2fbd1@mail.gmail.com> <gf1kka$oj6$1@ger.gmane.org> <d018a9bd0811070708r1479656bk46e9c21295cce6ba@mail.gmail.com>
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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 <ivoras@freebsd.org> > > >> 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. >> >> >> > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > >
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