Subject: Re: Thread benchmarks, round 2
To: matthew sporleder <>
From: Kris Kennaway <>
List: tech-kern
Date: 10/05/2007 20:28:38
matthew sporleder wrote:
> On 10/5/07, Kris Kennaway <> wrote:
>> Andrew Doran wrote:
>>> So, I learned a few things since I put up the previous set of benchmarks:
>>> - The erratic behaviour from Linux is due to the glibc memory allocator.
>>>   Using Google's tcmalloc, the problem disappears.
>> Well you have to be careful there, tcmalloc apparently defers frees, and
>> is not really a general purpose malloc.  The linux performance problems
>> are (were? I haven't tried recent kernels) real though.
> I don't want to get too into linux tuning for this, but horde is a
> good alternative to tcmalloc if there are concerns about using
> tcmalloc in this capacity.  (horde also works on solaris, and could
> probably be ported further)

My opinion is that this is a problem for the Linux and glibc developers 
to solve :-)