[asterisk-dev] Asterisk 1.8 SIP_CAUSE performance regression

[Bryant Zimmerman]

----------------------------------------

From: "Matthew Nicholson" <mnicholson at digium.com>

Sent: Thursday, August 18, 2011 10:30 AM

To: "Asterisk Developers Mailing List" <asterisk-dev at lists.digium.com>

Subject: Re: [asterisk-dev] Asterisk 1.8 SIP_CAUSE performance regression


On Thu, 2011-08-18 at 16:24 +0200, Benny Amorsen wrote:

> Matthew Nicholson <mnicholson at digium.com> writes:

> 

> > When chan_sip sets MASTER_CHANNEL(HASH(SIP_CAUSE,<chan name>)) the

> > MASTER_CHANNEL function scans the channel list which can be a slow

> > operation. Under moderate traffic loads this causes delays in 
processing

> > sip messages which can cause retransmission timers to expire.

> 

> Is there no better way to find the specific channels we are looking for,

> without a linear search? Are there other places which depend on linear

> searches through all channels?


There is some discussion about better ways to implement the same

functionality in #asterisk-dev going on now.


-- 

Matthew Nicholson

Digium, Inc. | Software Developer


Somthing more like a database style index?


Bryant
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