Date: Sun, 27 Jul 2008 21:55:39 -0400 (EDT) From: vogelke+software@pobox.com (Karl Vogel) To: Giorgos Keramidas <keramida@ceid.upatras.gr> Cc: freebsd-questions@freebsd.org Subject: Re: malloc options Message-ID: <20080728015539.70030B7B9@kev.msw.wpafb.af.mil> In-Reply-To: <87y73ohylt.fsf@kobe.laptop> (message from Giorgos Keramidas on Sun, 27 Jul 2008 05:03:58 %2B0300)
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>> On Sat, 26 Jul 2008 17:36:35 -0700,
>> Doug Hardie <bc979@lafn.org> wrote:
D> The program has worked under considerable load for many years with versions
D> 3.7 to 6.2. Problems only occur with 7.0. The program is quite complex
D> and big. It uses probably hundreds of mallocs in a typical use. The
D> problems only occur reasonably randomly and only under quite heavy load.
D> The developer is looking into it, but the problem only occurs on FreeBSD
D> 7.0, not any other Unix systems. In the meantime I am losing money because
D> of it.
>> On Sun, 27 Jul 2008 05:03:58 +0300,
>> Giorgos Keramidas <keramida@ceid.upatras.gr> said:
G> While that's understandable, the current malloc() has undergone quite
G> extensive testing by Jason Evans and a lot of people who use it in FreeBSD
G> 7.X or later. Its ability to expose bugs in this way was deemed important
G> enough that it is now used by other projects too.
I ran into a similar problem with the BSD allocator running under heavy
load that didn't happen under any Solaris or Linux system I used. I
finally fixed it by using Doug Lea's malloc just for this one application:
http://shell.siscom.net/~vogelke/Software/Languages/C/Libraries/malloc/
This was under FreeBSD 6.*, but it might provide another data point if you
want to give it a try.
--
Karl Vogel I don't speak for the USAF or my company
vogelke at pobox dot com http://www.pobox.com/~vogelke
And God said, "Let there be vodka!" And saw that it was good. Then God
said, "Let there be light!" And then said, "Whoa - too much light."
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