Re: [Libevent-users] Libevent Schedule Mechanism /Performance

[Azat Khuzhin <a3at.mail@xxxxxxxxx>]

On Fri, Dec 11, 2015 at 09:22:54PM +0530, Anand Raj Manickam wrote:
> Hi ,
> I have a 8 core machine , with 8 threads which have registered with
> libevent for accept callbacks.
> All it does it accept a connection and close the connection from the thread.
> I could see that performance could scale linearly with cpu utilization
> till 4 threads , if i spawn more threads the performance does not
> increase and also the CPU utilization remains less than 500%.
> For a single thread - i get 30k req/per sec - cpu utilization - 99%
> 2 threads- 40k -198%
> 4 threads - 60k - 390%
> 8 threads - 60k - 500-650 %
> 
> 
> Can someone shed some light on this behavior ?
> How is the scheduling done by libevent when the accepts happen ?
> Is there any reference on the libevent code i could tweak ?

Hi,

Can you please post here minimalistic example?

Thanks,
Azat.
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