Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754513AbXLAUGN (ORCPT ); Sat, 1 Dec 2007 15:06:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751282AbXLAUFz (ORCPT ); Sat, 1 Dec 2007 15:05:55 -0500 Received: from il.qumranet.com ([82.166.9.18]:39991 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751400AbXLAUFy (ORCPT ); Sat, 1 Dec 2007 15:05:54 -0500 Message-ID: <4751BE0D.3050609@argo.co.il> Date: Sat, 01 Dec 2007 22:03:25 +0200 From: Avi Kivity User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: Kyle Moffett CC: Lennart Sorensen , Ben Crowhurst , linux-kernel@vger.kernel.org Subject: Re: Kernel Development & Objective-C References: <474EAD18.6040408@stellatravel.co.uk> <20071130143445.GA2310@csclub.uwaterloo.ca> <53ADBDBF-9B65-441E-B867-D68DE48ABD64@mac.com> In-Reply-To: <53ADBDBF-9B65-441E-B867-D68DE48ABD64@mac.com> Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 677 Lines: 15 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?] -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/