This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Re: [patch] malloc per-thread cache ready for review
- From: DJ Delorie <dj at redhat dot com>
- To: Markus Trippelsdorf <markus at trippelsdorf dot de>
- Cc: libc-alpha at sourceware dot org
- Date: Wed, 01 Feb 2017 11:44:21 -0500
- Subject: Re: [patch] malloc per-thread cache ready for review
- Authentication-results: sourceware.org; auth=none
Markus Trippelsdorf <markus@trippelsdorf.de> writes:
> http://locklessinc.com/downloads/lockless_allocator_src.tgz (the best in
> my testing) or jemalloc.
Before we go down the "which allocator is best" road... glibc's
allocator is intended to be a general purpose "reasonably good enough"
system allocator. It's easy to find a specific allocator that beats it
in a specific test, but being a specifically best allocator is not our
goal here - providing an allocator that can be the default on a
Linux-based system is.
Hence, my goal with the per-thread cache is to make it "generally
better" for overall system performance.
I am not trying to make it better than every other allocator in every
case, that's a futile exercise.