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9 messages in ru.sysoev.nginxRe: nginx-0.6.29| From | Sent On | Attachments |
|---|---|---|
| Igor Sysoev | Mar 18, 2008 7:21 am | |
| Cherife Li | Mar 18, 2008 7:41 am | |
| Igor Sysoev | Mar 18, 2008 7:46 am | |
| Cherife Li | Mar 18, 2008 8:15 am | |
| Gentoo | Mar 23, 2008 7:04 pm | |
| bianbian | Mar 23, 2008 7:36 pm | |
| kingler | Mar 23, 2008 7:53 pm | |
| Cherife Li | Mar 23, 2008 8:48 pm | |
| Igor Sysoev | Mar 24, 2008 2:17 am |
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| Subject: | Re: nginx-0.6.29 | Actions... |
|---|---|---|
| From: | Igor Sysoev (is-G...@public.gmane.org) | |
| Date: | Mar 24, 2008 2:17:41 am | |
| List: | ru.sysoev.nginx | |
On Mon, Mar 24, 2008 at 10:04:40AM +0800, Gentoo wrote:
any examples? thanks
Here is head of pprof output of some of our servers:
19835 9.8% 9.8% 19835 9.8% longest_match 19630 9.7% 19.5% 59989 29.6% deflate_fast 12436 6.1% 25.6% 12436 6.1% compress_block 12158 6.0% 31.6% 100206 49.4% ngx_http_charset_body_filter 11852 5.8% 37.4% 11852 5.8% writev 10940 5.4% 42.8% 10940 5.4% sendfile 7252 3.6% 46.4% 122553 60.4% ngx_http_ssi_body_filter 6065 3.0% 49.4% 6065 3.0% kevent 5988 3.0% 52.4% 5988 3.0% close 5023 2.5% 54.8% 5023 2.5% connect 4574 2.3% 57.1% 4574 2.3% ngx_http_parse_header_line 3909 1.9% 59.0% 3909 1.9% _pread 3797 1.9% 60.9% 3797 1.9% recvfrom 3790 1.9% 62.8% 3790 1.9% crc32 3569 1.8% 64.5% 3569 1.8% memcpy 3384 1.7% 66.2% 3384 1.7% readv 3129 1.5% 67.7% 3129 1.5% fill_window 2898 1.4% 69.2% 2898 1.4% memset 2750 1.4% 70.5% 2847 1.4% _malloc_prefork 2701 1.3% 71.9% 2701 1.3% gettimeofday 2328 1.1% 73.0% 2365 1.2% ngx_http_core_find_location 2099 1.0% 74.0% 2099 1.0% socket
gzipping takes about 30%, system operations on behalf of the worker (writev, sendfile, kevent, close, connect, etc) takes about 20%, charset filter takes about 6%, ssi filter takes about 3.6%.
In 0.6.29 the charset filter was optimized and now it takes 2% less.
Look http://google-perftools.googlecode.com/svn/trunk/doc/cpuprofile.html#pprof how to use pprof.
On Tue, Mar 18, 2008 at 11:15 PM, Cherife Li
<cher...@public.gmane.org> wrote:
On 2008-3-18 22:47, Igor Sysoev wrote:
On Tue, Mar 18, 2008 at 10:41:40PM +0800, Cherife Li wrote:
On 2008-3-18 22:21, Igor Sysoev wrote:
Changes with nginx 0.6.29 18 Mar 2008
*) Feature: the ngx_google_perftools_module.
*) Bugfix: the ngx_http_perl_module could be not built on 64-bit platforms; bug appeared in 0.6.27.
So what is ngx_google_perftools_module? I found nothing about it in the wiki.
The module enable google_perftools profiler for workers.
./configure --with-google_perftools_module
nginx.conf:
google_perftools_profiles /path/to/profile;
profiles will be in /path/to/profile.<worker_pid>
Got it. I'm looking into it on google. Thanks, Igor. :-)
-- Rgds, Cherife.
-- Life is hard
-- Igor Sysoev http://sysoev.ru/en/