[asterisk-dev] [Code Review] 3199: scheduler: Remove hashtab usage.

[Joshua Colp]

-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviewboard.asterisk.org/r/3199/
-----------------------------------------------------------

(Updated Feb. 11, 2014, 8:17 p.m.)


Status
------

This change has been marked as submitted.


Review request for Asterisk Developers.


Repository: Asterisk


Description
-------

The scheduler currently stores scheduled items in two ways: a hashtab and a heap. The heap is used for actually scheduling while the hashtab is used for fast retrieval under certain circumstances. In practice having the hashtab comes at a cost under normal use. Each time something is scheduled two memory allocations occur: one for the scheduled item itself and one for the hashtab. Each time something is rescheduled the hashtab entry is freed and allocated yet again. If you have a scheduled item which is rescheduled over and over this can be substantial.

This change removes the hashtab usage and uses the heap for finding things.


Diffs
-----

  /trunk/main/sched.c 407748 

Diff: https://reviewboard.asterisk.org/r/3199/diff/


Testing
-------

Ran scheduler unit test and also forced the scheduler to get used for Playback.


Thanks,

Joshua Colp

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.digium.com/pipermail/asterisk-dev/attachments/20140211/906b494a/attachment-0001.html>