From simon.urbanek at r-project.org  Sat May 20 01:33:50 2006
From: simon.urbanek at r-project.org (Simon Urbanek)
Date: Fri, 19 May 2006 19:33:50 -0400
Subject: [Rd] Memory allocator on OS/X
In-Reply-To: <2A01E769-8CC9-4AF4-8170-51D7BAB89923@mac.com>
References: <2A01E769-8CC9-4AF4-8170-51D7BAB89923@mac.com>
Message-ID: <E208D068-FCF1-44B6-91F6-E53B3C1D7293@r-project.org>

Jason,

On May 19, 2006, at 6:37 PM, Jason Foster wrote:

> A quick scan though the mailing list archives didn't reveal any  
> reference to this article

Somehow you managed to miss it, we had a discussion about this quite  
recently:
http://www.mail-archive.com/r-sig-mac%40stat.math.ethz.ch/msg00770.html

Also based on private e-mail exchange with all involved parties the  
preliminary answer is no. The mentioned speed-up occurred only after  
patching the involved code, R was actually not even modified. It is  
still unclear whether a modification of R is safe and whether any  
speed up is to be expected. I hope to have a quiet minute during the  
weekend so I can test the various hypotheses... (There are two  
separate issues to be addressed: system malloc/free and BLAS  
performance).

Cheers,
Simon


> [...]
>
> Would it make sense for the build process that generates R binaries
> for OS X to use the Lea allocator?
>
> Jason Foster
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
>



[Rd] Memory allocator on OS/X
Simon Urbanek