Alex,
In this case, the "moving food around on the plate" is moving the process blocking of the http request (which is just wait time) to increased memory usage by storing the request in memory. The number of message able to be handled over a sustained period increases (full stop). Of course there' still an upper bound based on memory and that should be considered. It's not a "limitless fix", but buy creating a queue for the requests in memory the upper bound gets increased.
Kaufman Senior Voice Engineer
E: bkaufman@bcmone.com
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________________________________ From: Alex Balashov via sr-users sr-users@lists.kamailio.org Sent: Thursday, December 19, 2024 10:49 AM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Cc: Alexis Fidalgo alzrck@gmail.com; Alex Balashov abalashov@evaristesys.com Subject: [SR-Users] Re: Kamailio not receiving packets on high CPS
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On Dec 19, 2024, at 11:19 am, Alexis Fidalgo via sr-users sr-users@lists.kamailio.org wrote:
Been there, done that :) async does not help in this scenario.
Killer here, as you mentioned, is wait, async moves the problem to the side only (learned by testing)
:)
YES! You've just summarised the central thesis about async that I made in this blog post:
https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fblog.evari...https://blog.evaristesys.com/2016/02/15/tuning-kamailio-for-high-throughput-and-performance/
TL;DR don't do HTTP queries from Kamailio. Just don't.
-- Alex
-- Alex Balashov Principal Consultant Evariste Systems LLC Web: https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fevaristesy...https://evaristesys.com/ Tel: +1-706-510-6800
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