Re: Request for suggestions

To: Patrick Tullmann <tullmann@cs.utah.edu>
Subject: Re: Request for suggestions
From: Voon-Li Chung <vlchung@cs.uwa.edu.au>
Date: Wed, 4 Apr 2001 14:26:11 +0800 (WST)
cc: oskit-users@fast.cs.utah.edu
In-Reply-To: <20010404002016.A28303@cs.utah.edu>
Sender: owner-oskit-users@fast.cs.utah.edu

> Voon-Li Chung wrote:
> > yet the OSkit version is many times slower (subjectively, 1 order of
> > magnitude). I know that I haven't provided very much information, but has
> > anyone come across this problem before? Could my heavy use of malloc et al
> > be causing the slowdown?
> 
> You have probably hit the nail on the head.  The OSKit's malloc is
> pretty slow.  You might try using the FreeBSD C library (I think,
> someone from Utah should correct me if I'm wrong...).  Also, you can
> build the OSKit with --enable-profiling to get a gprof dump of where
> the time is being spent.  Look at CH 29 (egad!) of the manual.

The documentation (and a look through the code) states that the FreeBSD
malloc libraries are overridden with the default linear linked list one.
I'm currently attempting to port dlmalloc() to OSkit, on top of the lmm
infrastructure.

References:

Re: Request for suggestions

From: Patrick Tullmann <tullmann@cs.utah.edu>