can I let all winbindd processes accept connections like nginx does

[Jeremy Allison]

On Tue, Dec 17, 2013 at 12:05:10PM -0500, Ira Cooper wrote:
> 
> 
> 
> On Tue, Dec 17, 2013 at 12:02 PM, Jeremy Allison <jra at samba.org> wrote:
>      On Tue, Dec 17, 2013 at 04:30:51PM +0100, Volker Lendecke wrote:
>      > On Tue, Dec 17, 2013 at 11:11:59PM +0800, Tom wrote:
>      > > Yes, I have already done some performance tuning before I sent my
>      first email to this email list.
>      > > The CPU utilization of all the child winbindd processes are no
>      more than 10 percent.
>      > > The CPU utilization of the parent winbindd processes is about 30-
>      40 percent.
>      > > I found the parent winbindd process spent a lot of CPU time on
>      'poll' syscall, seems it can't handle so many concurrent connections
>      well.
>      >
>      > Ok, poll is bad. What platform are you on? Linux has epoll,
>      > which we have support for. This is definitely required for
>      > that kind of load. If it's something else, we have a bit
>      > more work ahead, we would need to write a tevent backend for
>      > kqueue or /dev/poll.
> 
>      I wrote a Solaris "ports" backend for tevent for
>      my own amusement.
> 
>      It's performance is *worse* (according to Ira :-).
> 
> I'm not sure I ever benchmarked it.
> 
> I was too busy to test it... alas. :/

That's not what I recall in email, however my
memory is very flakey :-).

Maybe I just misinterpreted your response, or
maybe you were too embarassed to admit you
hadn't tested it :-) :-).