Subject: Importing jemalloc
To: None <firstname.lastname@example.org>
From: Andrew Doran <email@example.com>
Date: 01/21/2007 05:09:03
I ported FreeBSD's new malloc code (jemalloc) to NetBSD's libc. The main
advantage this brings is significantly reduced contention for multi-threaded
programs that use malloc heavily.
For single threaded programs, it seems that jemalloc might have lower or
comparable CPU and memory footprints when compared against phkmalloc. There
is a paper at the URL below. If you go up a directory or two, there are more
FreeBSD has been running with this allocator for quite a while now. After
fixing a bug in lint I can successfully build userland and a kernel on i386.
A build using both of those new builds works fine (heh), and the multi-
threaded tests I have tried seem OK. I'll be doing a few basic tests to
verify that it compares well to phkmalloc on NetBSD when I get a chance.
Any objections to importing this?