Trying to track down a load problem we're seeing on 8.2-RELEASE-p4 i386 in a busy web hosting environment I came across the following post: http://lists.freebsd.org/pipermail/freebsd-questions/2011-October/234520.html That basically describes what we're seeing as well, including the "doesn't happen on Linux" part. Does anyone have any ideas about this? With incredibly similar stuff running on 7.x we didn't see this problem, so it seems to be something new in 8. -- "We could put the whole Internet into a book." "Too practical." Breadth of IT experience, and depth of knowledge in the DNS. Yours for the right price. :) http://SupersetSolutions.com/
On 11/14/2011 12:31, Doug Barton wrote:> Trying to track down a load problem we're seeing on 8.2-RELEASE-p4 i386 > in a busy web hosting environment I came across the following post: > > http://lists.freebsd.org/pipermail/freebsd-questions/2011-October/234520.html > > That basically describes what we're seeing as well, including the > "doesn't happen on Linux" part. > > Does anyone have any ideas about this? > > With incredibly similar stuff running on 7.x we didn't see this problem, > so it seems to be something new in 8.Just took a closer look at our ktrace, and actually our pattern is slightly different than the one in that post. In ours the second option is null, but the third is set: 74195 httpd 0.000017 RET sigprocmask 0 74195 httpd 0.000013 CALL sigprocmask(SIG_BLOCK,0,0xbfbf89d4) 74195 httpd 0.000009 RET sigprocmask 0 74195 httpd 0.000013 CALL sigprocmask(SIG_BLOCK,0,0xbfbf89d4) 74195 httpd 0.000009 RET sigprocmask 0 74195 httpd 0.000012 CALL sigprocmask(SIG_BLOCK,0,0xbfbf89d4) But repeated hundreds of times in a row. -- "We could put the whole Internet into a book." "Too practical." Breadth of IT experience, and depth of knowledge in the DNS. Yours for the right price. :) http://SupersetSolutions.com/
On Monday, November 14, 2011 3:31:43 pm Doug Barton wrote:> Trying to track down a load problem we're seeing on 8.2-RELEASE-p4 i386 > in a busy web hosting environment I came across the following post: > > http://lists.freebsd.org/pipermail/freebsd-questions/2011-October/234520.html> > That basically describes what we're seeing as well, including the > "doesn't happen on Linux" part. > > Does anyone have any ideas about this? > > With incredibly similar stuff running on 7.x we didn't see this problem, > so it seems to be something new in 8.I suspect it has to do with some of the changes to rtld such that it now always blocks signals while resolving symbols (or something along those lines IIRC). It makes throwing exceptions slow as well. -- John Baldwin
We know about it. But unfortunately we can`t use php-fpm or other fcgi solution. We must use .htaccess with php directive. On 15.11.2011 15:34, Steven Hartland wrote:> ----- Original Message ----- From: "Daniil Cherednik" > <dcherednik@masterhost.ru> > >> I am not trying to start a holy war, but I really need to increase >> performance of our hosting in FreeBSD. > > Is there something you need from apache that means you > cant use nginx for instead? > > nginx + php-fpm is much higher performing, we switch a year > ago and would never go back. > > Regards > Steve > > ===============================================> This e.mail is private and confidential between Multiplay (UK) Ltd. > and the person or entity to whom it is addressed. In the event of > misdirection, the recipient is prohibited from using, copying, > printing or otherwise disseminating it or any information contained in > it. > In the event of misdirection, illegible or incomplete transmission > please telephone +44 845 868 1337 > or return the E.mail to postmaster@multiplay.co.uk. >-- ? ?????????, Daniil Cherednik .masterhost