From: Avi Kivity <avi@argo.co.il>
To: Kyle Moffett <mrmacman_g4@mac.com>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
Ben Crowhurst <Ben.Crowhurst@stellatravel.co.uk>,
linux-kernel@vger.kernel.org
Subject: Re: Kernel Development & Objective-C
Date: Sat, 01 Dec 2007 22:03:25 +0200 [thread overview]
Message-ID: <4751BE0D.3050609@argo.co.il> (raw)
In-Reply-To: <53ADBDBF-9B65-441E-B867-D68DE48ABD64@mac.com>
Kyle Moffett wrote:
> In the kernel though, there are many codepaths where *every* *single*
> instruction counts; that could be a serious performance hit.
Write *those* *codepaths* in *C* or *assembly*. But only after you
manage to measure a difference compared to the object-oriented systems
language.
[I really doubt there are that many of these; syscall
entry/dispatch/exit, interrupt dispatch, context switch, what else?]
next prev parent reply other threads:[~2007-12-01 20:06 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-29 12:14 Kernel Development & Objective-C Ben Crowhurst
2007-11-30 10:02 ` Xavier Bestel
2007-11-30 10:09 ` KOSAKI Motohiro
2007-11-30 10:20 ` Xavier Bestel
2007-11-30 10:54 ` Jan Engelhardt
2007-11-30 14:21 ` David Newall
2007-11-30 23:31 ` Bill Davidsen
2007-11-30 23:40 ` Alan Cox
2007-12-01 0:05 ` Arnaldo Carvalho de Melo
2007-12-01 18:27 ` Bill Davidsen
2007-12-01 18:18 ` Alan Cox
2007-12-03 1:23 ` Bill Davidsen
2007-11-30 22:52 ` J.A. Magallón
2007-11-30 10:29 ` Loïc Grenié
2007-11-30 11:16 ` Ben Crowhurst
2007-11-30 11:36 ` Karol Swietlicki
2007-11-30 14:37 ` Lennart Sorensen
2007-12-08 8:54 ` Rogelio M. Serrano Jr.
2007-11-30 23:19 ` J.A. Magallón
2007-11-30 23:53 ` Nicholas Miell
2007-12-01 0:31 ` Al Viro
2007-12-01 0:34 ` Al Viro
2007-12-01 1:09 ` J.A. Magallón
2007-12-01 19:55 ` Avi Kivity
2007-12-04 17:54 ` Lennart Sorensen
2007-12-04 21:10 ` Avi Kivity
2007-12-04 21:24 ` J.A. Magallón
2007-11-30 11:37 ` Matti Aarnio
2007-11-30 14:34 ` Lennart Sorensen
2007-11-30 15:26 ` Kyle Moffett
2007-11-30 18:40 ` H. Peter Anvin
2007-11-30 19:35 ` Kyle Moffett
2007-12-01 20:03 ` Avi Kivity [this message]
2007-12-02 19:01 ` Andi Kleen
2007-12-03 5:12 ` Avi Kivity
2007-12-03 9:50 ` Andi Kleen
2007-12-03 11:46 ` Avi Kivity
2007-12-03 11:50 ` Andi Kleen
2007-12-03 21:13 ` Willy Tarreau
2007-12-03 21:39 ` J.A. Magallón
2007-12-03 21:57 ` Alan Cox
2007-12-04 21:47 ` J.A. Magallón
2007-12-04 22:20 ` Diego Calleja
2007-12-05 10:59 ` Giacomo A. Catenazzi
2007-12-04 21:07 ` Avi Kivity
2007-12-04 22:43 ` Willy Tarreau
2007-12-05 17:05 ` Micro vs macro optimizations (was: Re: Kernel Development & Objective-C) Avi Kivity
2007-12-03 12:35 ` Kernel Development & Objective-C Gilboa Davara
2007-12-03 12:44 ` Gilboa Davara
2007-12-03 16:28 ` Casey Schaufler
2007-12-04 17:50 ` Lennart Sorensen
2007-12-05 10:31 ` Gilboa Davara
2007-12-01 19:59 ` Avi Kivity
2007-12-02 19:44 ` Jörn Engel
2007-12-03 16:53 ` Lennart Sorensen
2007-11-30 15:00 ` Chris Snook
2007-12-01 9:50 ` David Newall
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