A little over a year I ago, I made a post to the Asterisk-dev mailing list looking for someone to do some load testing with the Hoard Memory Allocator.
Chris Tooley just recently gave it a test run and saw a boost of about 10% in the number of call setups per second that his machine could handle.
I would encourage others to give this a try when load testing your system. There is virtually no setup other than installing hoard. There are some Asterisk functionality that I feel would see much greater performance improvements than have been demonstrated so far.

4 responses so far ↓
1 Matt Riddell // Jul 2, 2008 at 7:41 pm
Cool, sounds good, worth a try – how does it work?
2 veeraiyan // Jul 25, 2008 at 7:51 am
Hi i am new to Asterisk . i want configure sip phone
with asterisk . i am able to do that when asterisk and
sip phone are in same machine. if try to do in different machine its not working . can any one help me out .
i am using Asterisk 1.4 and sip Xlite phone
3 CANAPIA // Aug 30, 2008 at 11:40 am
IO MI BUMMO GRAZIE AD ASTERISK E FREEPBX! THANKS GUYS
MI SCONVOLGO!!!!!!!!
4 » Tunning avanzado de Asterisk: Hoard Memory Sinologic :: Blog sobre call-center,callcenter,... // Nov 22, 2010 at 3:47 am
[...] entonces cuando me puse a investigar, y encontre un articulo de Rusell Bryant, hablando de un técnica (Hoard Memory) que ya me sonaba. Por experiencia, ya había utilizado en [...]
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