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DragonFly kernel List (threaded) for 2005-02
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Re: ptmalloc2

To: drhodus@xxxxxxxxxxx
From: David Xu <davidxu@xxxxxxxx>
Date: Fri, 18 Feb 2005 22:44:56 +0800

David Rhodus wrote:
On Thu, 17 Feb 2005 15:03:35 -0500, Pedro F. Giffuni <giffunip@xxxxxxxx> wrote:


JIC you are not following freebsd-hackers, there was an interesting
discussion about the linux thread-aware malloc that is under a BSD
license. This link comes from an older thread:


It does look interesting (at least for SMP), but it looks like some
kernel support will be required.



I think Greg Lehey recently did some benchmarks that showed PHK malloc
greatly out performs ptmalloc.

phkmalloc is slow when allocating large space, I ever tried to allocate
512M in a single malloc() call on AMD64, and it cames up to several
seconds to complete the request.

David Xu

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