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

[Kevin Harwell (JIRA)]

Kevin Harwell created ASTERISK-26806:
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             Summary: 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
            Reporter: Kevin Harwell


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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