Date: Fri, 7 Nov 2008 23:08:18 +0800 From: "Ken Chen" <ken73.chen@gmail.com> To: freebsd-stable@freebsd.org Subject: Re: php-cgi frozen with sbwait when SMP enable Message-ID: <d018a9bd0811070708r1479656bk46e9c21295cce6ba@mail.gmail.com> In-Reply-To: <gf1kka$oj6$1@ger.gmane.org> References: <d018a9bd0811070329s30b463b0m6885e1f568217b89@mail.gmail.com> <gf1bc5$lbu$1@ger.gmane.org> <d018a9bd0811070610t6eaa5b08l4b59cc1857e2fbd1@mail.gmail.com> <gf1kka$oj6$1@ger.gmane.org>
next in thread | previous in thread | raw e-mail | index | archive | help
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. > >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?d018a9bd0811070708r1479656bk46e9c21295cce6ba>