Simple threading question

[mat h]

nginx doesnt need 100+ threads, it uses an event worker model. Set
your worker_processes to something more reasonable. If you are trying
to handle 150 requests then you really only need a single worker.

On Mon, Sep 27, 2010 at 4:05 PM, Ankur Gupta <ankur655 at gmail.com> wrote:
> Hi,
>
> I have a bunch of nginx and php-fpm worker threads.  I am running a
> very simple test with a script doing: <? sleep(20); ?>.  I notice that
> if I make two requests at the same time (from the same IP address), they get
> serialized on the
> php-fpm side and have a twenty second differential.  Why would this
> happen and the two requests not get processed in parallel when there
> are an abundant number of threads?  Here are the two requests in the
> slow log file and they have a twenty second difference:
>
> Sep 26 19:02:38.177091 pid 13597 (pool default)
> script_filename = /var/www/test1/test.php
> [0x00000000095b5280] sleep() /var/www/test1/test.php:2
>
> Sep 26 19:02:58.321560 pid 13609 (pool default)
> script_filename = /var/www/test1/test.php
> [0x000000000942a890] sleep() /var/www/test1/test.php:2
>
> I have 100+ nginx threads
> $ ps -afe | grep nginx | wc -l
> 120
>
> and 150 php-fpm threads
> $ ps -afe | grep php-fpm | wc -l
> 150
>
>
> Thanks,
> Ankur
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