can I let all winbindd processes accept connections like nginx does

Tom sambalearn at
Tue Dec 17 08:52:49 MST 2013

>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.
>What exact Samba version are you running? It might be
>possible that your version does not properly detect epoll,
>or you're sitting on a version where winbind does not use it
>properly yet.

Platforms are all Linux. (one is Linux 3.6.3,  X86_64, another is Linux 2.6.32, X86_64.)
Smaba version is 3.6.13.

Thanks. :)

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