From owner-freebsd-net Tue Oct 15 23:13:10 2002 Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6D05237B401 for ; Tue, 15 Oct 2002 23:13:08 -0700 (PDT) Received: from silver.he.iki.fi (silver.he.iki.fi [193.64.42.241]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7E9C543E75 for ; Tue, 15 Oct 2002 23:13:07 -0700 (PDT) (envelope-from pete@he.iki.fi) Received: from PHE (silver.he.iki.fi [193.64.42.241]) by silver.he.iki.fi (8.12.6/8.11.4) with SMTP id g9G6CpYj056250; Wed, 16 Oct 2002 09:13:06 +0300 (EEST) (envelope-from pete@he.iki.fi) Message-ID: <071501c274db$222c3ea0$8c2a40c1@PHE> From: "Petri Helenius" To: "Lars Eggert" Cc: "Luigi Rizzo" , References: <065901c27495$56a94c40$8c2a40c1@PHE> <3DAC8FAD.30601@isi.edu> <068b01c2749f$32e7cf70$8c2a40c1@PHE> <20021015161055.A27443@carp.icir.org> <06c901c274d8$e5280b80$8c2a40c1@PHE> <3DAD01A7.3020807@isi.edu> Subject: Re: ENOBUFS Date: Wed, 16 Oct 2002 09:13:20 +0300 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org > The 900Mbps are similar to what I see here on similar hardware. What kind of receive performance do you observe? I haven´t got that far yet. > > For your two-interface setup, are the 600Mbps aggregate send rate on > both interfaces, or do you see 600Mbps per interface? In the latter 600Mbps per interface. I´m going to try this out also on -CURRENT to see if it changes anything. Interrupts do not seem to pose a big problem because I´m seeing only a few thousand em interrupts a second but since every packet involves a write call there are >100k syscalls a second. > case, is your CPU maxed out? Only one can be in the kernel under > -stable, so the second one won't help much. With small packets like > that, you may be interrupt-bound. (Until Luigi releases polling for em > interfaces... :-) > I´ll try changing the packet sizes to figure out optimum. Pete To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message