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RE: Nginx flv stream gets too slow on 2000 concurrent connections

Lukas Tribus
January 23, 2013 01:10PM
Can you send us a 20+ lines of output from "vmstat 1" under this load? Also, what exact linux kernel are you running ("cat /proc/version")?


________________________________
> Date: Wed, 23 Jan 2013 21:51:43 +0500
> Subject: Re: Nginx flv stream gets too slow on 2000 concurrent connections
> From: shahzaib.cb@gmail.com
> To: nginx@nginx.org
>
> Following is the output of 3000+ concurrent connections on iostat 1
> command :-
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 1.72 2.96 0.47 0.12 0.00 94.73
>
> Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
> sda 22.47 1988.92 733.04 518332350 191037238
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.39 0.00 0.91 0.20 0.00 98.50
>
> Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
> sda 22.00 2272.00 0.00 2272 0
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.46 0.00 0.91 0.07 0.00 98.57
>
> Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
> sda 23.00 864.00 48.00 864 48
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.39 0.00 0.72 0.33 0.00 98.56
>
> Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
> sda 60.00 3368.00 104.00 3368 104
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.20 0.00 0.65 0.20 0.00 98.95
>
>
>
> On Wed, Jan 23, 2013 at 8:30 PM, shahzaib shahzaib
> <shahzaib.cb@gmail.com<mailto:shahzaib.cb@gmail.com>> wrote:
> Sketchboy, i sent you the output of only 1000 concurrent connections
> because it wasn't peak hours of traffic. I'll send you the output of
> iostat 1 when concurrent connections will hit to 2000+ in next hour.
> Please keep in touch cause i need to resolve this issue :(
>
>
> On Wed, Jan 23, 2013 at 8:21 PM, skechboy
> <nginx-forum@nginx.us<mailto:nginx-forum@nginx.us>> wrote:
> From your output I can see that it isn't IO issue, I wish I could help you
> more.
>
> Posted at Nginx Forum:
> http://forum.nginx.org/read.php?2,235447,235476#msg-235476<http://forum.nginx.org/read.php?2%2c235447%2c235476#msg-235476>
>
> _______________________________________________
> nginx mailing list
> nginx@nginx.org<mailto:nginx@nginx.org>
> http://mailman.nginx.org/mailman/listinfo/nginx
>
>
>
> _______________________________________________ nginx mailing list
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Subject Author Posted

Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 04:44AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

skechboy January 23, 2013 06:58AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 07:12AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 07:16AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

skechboy January 23, 2013 10:21AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 10:32AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 11:52AM

RE: Nginx flv stream gets too slow on 2000 concurrent connections

Lukas Tribus January 23, 2013 01:10PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 02:02PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 02:06PM

RE: Nginx flv stream gets too slow on 2000 concurrent connections

Lukas Tribus January 23, 2013 02:20PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

Rainer Duffner January 23, 2013 02:30PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 03:22PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 03:28PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 03:40PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

Geoffrey Hartz January 23, 2013 03:44PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

Jonathan Matthews January 23, 2013 05:22PM

RE: Nginx flv stream gets too slow on 2000 concurrent connections

Lukas Tribus January 23, 2013 07:06PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

Scott Ribe January 23, 2013 07:14PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

Stefan Caunter January 23, 2013 10:52PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 24, 2013 01:58AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 24, 2013 06:32AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

姚伟斌 January 24, 2013 10:56PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

richardm January 23, 2013 04:50PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

Rainer Duffner January 23, 2013 04:52PM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

Dennis Jacobfeuerborn January 23, 2013 07:42AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 08:14AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

Geoffrey Hartz January 23, 2013 08:36AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 09:16AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

Reinis Rozitis January 23, 2013 09:44AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 10:00AM

Re: Nginx flv stream gets too slow on 2000 concurrent connections

shahzaib1232 January 23, 2013 10:10AM



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