From owner-freebsd-hackers Thu Apr 4 12:46: 2 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from netfinity.realnet.co.sz (netfinity.realnet.co.sz [196.28.7.2]) by hub.freebsd.org (Postfix) with ESMTP id 9846F37B419 for ; Thu, 4 Apr 2002 12:45:54 -0800 (PST) Received: by netfinity.realnet.co.sz (Postfix, from userid 502) id 4FFE1FB1E; Thu, 4 Apr 2002 08:49:35 +0200 (SAST) Received: from localhost (localhost [127.0.0.1]) by netfinity.realnet.co.sz (Postfix) with ESMTP id 4E23B6543F; Thu, 4 Apr 2002 08:49:35 +0200 (SAST) Date: Thu, 4 Apr 2002 08:49:35 +0200 (SAST) From: Zwane Mwaikambo X-X-Sender: zwane@netfinity.realnet.co.sz To: John Regehr Cc: Julian Elischer , Mike Silbersack , Subject: Re: Linuxthreads on Linux vs FreeBSD performance question In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Wed, 3 Apr 2002, John Regehr wrote: > > > Have you tried benchmarking process to process context switch times to see > > > if the results are similar? > > No, that's a good idea. My infrastructure isn't set up to support > processes, though, so it'll take a little time. I'd be surprised if there was a difference in context switch times... > > Also: > > You should run both linuxthreads binaries compile on linux (using > > emulation) and compiled on FreeBSD. it would be interesting to see > > if there is a difference.. > > There does not appear to be a statistically significant difference > between a native binary and an emulated Linux binary. Wouldn't the only place you'd notice slight overhead be syscalls? Zwane -- http://function.linuxpower.ca To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message