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Date:      Thu, 14 Apr 2005 00:41:25 +0100
From:      "Niall Douglas" <s_sourceforge@nedprod.com>
To:        freebsd-threads@freebsd.org
Subject:   Re: thread aware malloc
Message-ID:  <425DBC35.18797.F118E6C@localhost>
In-Reply-To: <425DA78E.2050701@freebsd.org>
References:  <425DAE1F.5558.EDA8BD7@localhost>

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On 14 Apr 2005 at 7:13, David Xu wrote:

> >I've already ported ptmalloc2 to FreeBSD. The performance increase is
> > steller to put it mildly, even with FreeBSD's poor multithreading
> >performance. You're talking ten or more times faster in heavily
> >multithreaded code :)
>
> Poor multithreading performance? I don't know what library you are
> talking about. I admit that malloc/free is the main bottleneck in
> userland, a SMP-aware and CPU locality allocator is welcome.

KSE threads, FreeBSD v5.3. It's a mixture of process and system 
threads. As I mentioned in a previous post, it's eight times slower 
than Linux. See http://www.nedprod.com/Tn/ (scroll down to the 
screenshots).

Cheers,
Niall





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