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List:       kde-devel
Subject:    Re: Special purpose malloc() in KDE?
From:       Chris Samuel <chris-kde-devel () old-wyche ! demon ! co ! uk>
Date:       2001-04-01 11:11:40
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Hi folks,

I've only just subscribed, so apologies if I'm repeating something that's 
already been said.

Reading the KDE-devel KC page I was interested to read about the malloc 
problems reported, so I built DL's malloc as a shared library, created 
/etc/ld.so.preload and added it into it.

If I've got this right then this procedure may help those who wish to try out 
alternative malloc's without having to rebuild KDE.

 cc  -fPIC -shared -c -o malloc.o malloc.c
 ld -shared -o libdlmalloc.so.2.7.0 malloc.o
 mv libdlmalloc.so.2.7.0 /lib
 [add /lib/libdlmalloc.so.2.7.0 to /etc/ld.so.preload]
 ldconfig

I've not really done any real testing yet, but after rebooting (and thus 
allowing all processes to pick it up) I *think* I'm seeing a noticeable 
reduction in memory usage. Currently hovering around 208Mb used with 2 
konsole's, KMail, kppp, Netscape and xosview running on the desktop, and 
Squid, Named, Cups and Postfix (amongst others) running underneath.

KDE is 2.1.1 from the Mandrake RPMs, XFree86-4.0.3.

I'm pretty much a novice at this sort of thing, so apologies for any mistakes.

cheers,
Chris
- -- 
Chris Samuel, Malvern, Worcs, UK.           <chris@discordia.ukuu.org.uk>
 +++ Divide by Cucumber Error. Please Reinstall Universe and Reboot +++
						- Hex
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