/proc/sys/fs/epoll/max_user_instances=128 considered harmful
Dave Jones
davej at redhat.com
Wed Jan 7 22:01:22 UTC 2009
On Wed, Jan 07, 2009 at 03:18:12PM +0000, Joe Orton wrote:
> The F10 kernel has /proc/sys/fs/epoll/max_user_instances set to 128 by
> default. Apache httpd uses one epoll fd ("instance") per child process,
> so this sets a hard limit on 128 children (i.e. 100 concurrent clients)
> out of the box.
>
> 1) shouldn't this be an rlimit so that we can bump it appropriately in
> the parent as root?
possibly. It's a question better asked on linux-kernel really.
This does sound like a better change to me than forcing the sysctl change
on everyone.
Dave
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http://www.codemonkey.org.uk
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