[asterisk-bugs] [JIRA] (ASTERISK-26806) pjsip_options: rework to make more efficient

[Joshua Colp (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-26806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on ASTERISK-26806 started by Joshua Colp.

> pjsip_options: rework to make more efficient
> --------------------------------------------
>
>                 Key: ASTERISK-26806
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26806
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip
>    Affects Versions: 13.14.0
>            Reporter: Kevin Harwell
>            Assignee: Joshua Colp
>         Attachments: endpoint_ids.1000, endpoint_ids.2000, endpoint_ids.3000, pjsip.conf.1000.txt, pjsip.conf.2000.txt, pjsip.conf.3000.txt, pjsip.conf.txt, register-noauth-inject.xml, subscribe-inject.xml
>
>
> Currently the pjsip_options code is plagued with efficiency issues. Testing revealed a marked increase in CPU utilization between versions (at least between 13.7.0 and the current branch/13.14+).
> Testing included ~3000 loaded (via config file) endpoints where at least 500 of those were then registered and subscribed. On my machine I noticed at least a 10-15% cpu increase between versions when options were being sent out. Turning off options (qualify_frequency=0) I noted no increase in cpu.
> Two primary issues need to be resolved:
> 1.  Find out why we are spending more time now when sending notifies and fix it.
> 2. If static contacts are used or a bunch of endpoints have registered and asterisk is [re]started/[re]loaded there is a significant slowdown within the options code. This actually blocks until it completes, which as the number of registered contacts increases so does the block/wait time. This needs to be fixed as well.



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