[SR-Users] evapi_async_relay() and workers

Alex Balashov abalashov at evaristesys.com
Wed Sep 14 15:23:12 CEST 2022


Thanks, Daniel. Based on this, is it reasonable to allocate the same number of both kinds of workers?

> On Sep 14, 2022, at 8:32 AM, Daniel-Constantin Mierla <miconda at gmail.com> wrote:
> 
> Hello,
> 
> I think there are two types of processes: "evapi dispatcher" (1 process
> always) and "evapi worker" (can be many controlled by workers mod param)
> and the resume of the transaction should happen in the later. The former
> gets the data from sip workers and writes to evapi tcp connections, then
> reads data from them (i/o event loop) and pushes to evapi workers. (iirc
> :-) )
> 
> Cheers,
> Daniel
> 
> On 14.09.22 13:58, Alex Balashov wrote:
>> Hi,
>> 
>> When a transaction suspended by evapi_async_relay() is resumed, in which child processes is it resumed? Is it in the dedicated “EVAPI RELAY” workers defined by the ‘workers’ modparam to ‘evapi’?
>> 
>> If this is so, just trying to work out the concurrency implications and the optimal size for the worker pool for maximal throughput. It sounds, at first glance, like it should be roughly similar to the sizing considerations for listener children. Thoughts welcome!
>> 
>> Cheers,
>> 
>> — Alex
>> 
>> -- 
>> Alex Balashov | Principal | Evariste Systems LLC
>> 
>> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
>> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>> 
>> 
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> 
> -- 
> Daniel-Constantin Mierla -- www.asipto.com
> www.twitter.com/miconda -- www.linkedin.com/in/miconda
> 

-- 
Alex Balashov | Principal | Evariste Systems LLC

Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/




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