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Re: nginx performance problem on linux

Evgeniy Berdnikov
November 17, 2016 04:32PM
On Thu, Nov 17, 2016 at 03:47:08PM -0500, atway wrote:
> На проксирующем в апач нжинксе со временем скорость обработки запросов
> падает.
> Посмотрели стрейсом и увидели, что увеличивается выполнение сисколв
> connect.
> Когда нжинкс только только запущен сисколл обрабатывается менее чем за 100
> usecs
> на следующий день, уже за 800 usecs, за следующие дни время обработки
> сискола
> увеличивается до 10000 usecs, и замедление обработки уже заметно для
> пользователей.

Посмотрите, не накапливаются ли в ядре дохлые сокеты (например,
в состоянии CLOSE_WAIT). Посмотреть можно через "lsof -n -i tcp"
или "ss -nt".
--
Eugene Berdnikov

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Subject Author Posted

nginx performance problem on linux

atway November 17, 2016 03:47PM

Re: nginx performance problem on linux

atway November 17, 2016 03:49PM

Re: nginx performance problem on linux

Vasiliy P. Melnik November 17, 2016 03:56PM

Re: nginx performance problem on linux

atway November 17, 2016 05:01PM

Re: nginx performance problem on linux

Vasiliy P. Melnik November 18, 2016 12:10AM

Re: nginx performance problem on linux

atway November 18, 2016 02:23AM

Re: nginx performance problem on linux

Evgeniy Berdnikov November 17, 2016 04:32PM

Re: nginx performance problem on linux

atway November 17, 2016 04:55PM

Re: nginx performance problem on linux

atway November 30, 2016 05:21PM

Re: nginx performance problem on linux

Vadim A. Misbakh-Soloviov December 01, 2016 07:08AM

Re: nginx performance problem on linux

Evgeniy Berdnikov December 01, 2016 07:18AM

Re: nginx performance problem on linux

atway December 01, 2016 02:32PM

Re: nginx performance problem on linux

Илья Шипицин December 01, 2016 03:20PM

Re: nginx performance problem on linux

atway December 02, 2016 04:00AM

Re: nginx performance problem on linux

Vadim A. Misbakh-Soloviov December 02, 2016 04:16AM

Re: nginx performance problem on linux

Илья Шипицин December 02, 2016 09:24AM

Re: nginx performance problem on linux

atway December 02, 2016 09:50AM

Re: nginx performance problem on linux Attachments

Pavel Mihaduk December 01, 2016 08:56AM

Re: nginx performance problem on linux

Vadim A. Misbakh-Soloviov December 02, 2016 01:14AM



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