We haven't measured the effect in Production yet, but in the lab, it made a big difference. 

The main problem that tcmalloc fixed for us was the threads locking on malloc and calloc and killing the CPU. I strongly recommend tcmalloc. In low traffic, it won't make a big difference, but in high traffic, you definitely need tcmalloc.

I will provide an update when I have better measurement from our production servers.

Regards,
Ali Pey
 

On Wed, Feb 25, 2015 at 11:25 AM, Michael Jerris <mike@jerris.com> wrote:
We make fairly heavy use of memory pools, which probably reduce malloc.  I suspect that using them is of little benefit but would be interested to hear to the contrary.

On Feb 24, 2015, at 2:15 PM, Tamas Jalsovszky <jalsot@gmail.com> wrote:

Great idea. Do you have any evidence whether other malloc libs (tcmalloc, jemalloc) gives better performance over glibc ones?

T.

On Wed, Feb 18, 2015 at 5:13 PM, Brian West <brian@freeswitch.org> wrote:
The webpage for TCMalloc states:

You can use tcmalloc in applications you didn't compile yourself, by using LD_PRELOAD:

   $ LD_PRELOAD="/usr/lib/libtcmalloc.so" blahblah


On Wed, Feb 18, 2015 at 9:59 AM, Ali Pey <alipey@gmail.com> wrote:
Hello,

Is there a way to switch to TCMalloc without recompiling freeswitch?

Can someone please point me to (or provide) some instructions? (Preferably for Centos 6)


_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting@freeswitch.org
http://www.freeswitchsolutions.com

Official FreeSWITCH Sites
http://www.freeswitch.org
http://confluence.freeswitch.org
http://www.cluecon.com

FreeSWITCH-users mailing list
FreeSWITCH-users@lists.freeswitch.org
http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
http://www.freeswitch.org