14 Sep
2022
14 Sep
'22
2:58 p.m.
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/
14 Sep
14 Sep
3:32 p.m.
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
4:23 p.m.
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(a)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:
--
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/
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/
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users(a)lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
* https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
7:05 p.m.
Depends on how the tasks are split between, usually the sip workers may
have to do more (e.g., filter bad traffic, respond to keepalive, maybe
also authenticate, ...) and the traffic getting on evapi is not the same
as the input volume.
Cheers,
Daniel
On 14.09.22 15:23, Alex Balashov wrote:
Thanks, Daniel. Based on this, is it reasonable to
allocate the same number of both kinds of workers?
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
On Sep 14, 2022, at 8:32 AM, Daniel-Constantin
Mierla <miconda(a)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:
--
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/
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users(a)lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
* https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users 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/
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users(a)lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
* https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
806
days inactive
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days old
3 comments
2 participants
participants (2)
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Alex Balashov -
Daniel-Constantin Mierla