[asterisk-bugs] [JIRA] (ASTERISK-23179) [patch] Formats: allow improved performance in Asterisk 11

[Corey Farrell (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-23179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Corey Farrell updated ASTERISK-23179:
-------------------------------------

    Issue Type: Improvement  (was: Bug)
    
> [patch] Formats: allow improved performance in Asterisk 11
> ----------------------------------------------------------
>
>                 Key: ASTERISK-23179
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23179
>             Project: Asterisk
>          Issue Type: Improvement
>      Security Level: None
>          Components: Formats/General
>    Affects Versions: 11.8.0
>            Reporter: Corey Farrell
>         Attachments: no-format_attr.patch
>
>
> This ticket is inspired by Josh's email in asterisk-dev, and loosely related to ASTERISK-23114.  The purpose of this ticket is to allow significant reduction in the cost of ast_format_cmp in Asterisk 11, without breaking ABI.  The patch does nothing unless WITHOUT_FORMAT_ATTR_INTERFACE is defined for main/format.c.
> For those who do not use res_format_attr_*.so, this patch and the define significantly reduce the cost of ast_format_cmp.
> I tested with callgrind, 2 SIP calls at the same time to ConfBridge for 1 minute.  No transcoding was done (both channels used slin), debug was set to 1 and verbose set to 6.
> Without the patch or without the define ast_format_cmp represented 26% of the Ir for each channel thread, 11% for the bridge thread.  With the patch and define ast_format_cmp was reduced to 1% for each channel, 0.4% for the bridge thread.

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