From owner-freebsd-performance@FreeBSD.ORG Sat Mar 18 13:42:15 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 895ED16A400 for ; Sat, 18 Mar 2006 13:42:15 +0000 (UTC) (envelope-from oxy@field.hu) Received: from green.field.hu (green.field.hu [217.20.130.28]) by mx1.FreeBSD.org (Postfix) with ESMTP id CDCEA43D45 for ; Sat, 18 Mar 2006 13:42:14 +0000 (GMT) (envelope-from oxy@field.hu) Received: from localhost (green.field.hu [217.20.130.28]) by green.field.hu (Postfix) with ESMTP id 76F1D119D2E; Sat, 18 Mar 2006 14:41:42 +0100 (CET) Received: from green.field.hu ([217.20.130.28]) by localhost (green.field.hu [217.20.130.28]) (amavisd-new, port 10024) with ESMTP id 59800-02; Sat, 18 Mar 2006 14:41:41 +0100 (CET) Received: from oxy (dsl217-197-187-71.pool.tvnet.hu [217.197.187.71]) by green.field.hu (Postfix) with ESMTP id C9455119CC4; Sat, 18 Mar 2006 14:41:40 +0100 (CET) Message-ID: <000401c64a91$c3962c30$0201a8c0@oxy> From: "OxY" To: "OxY" , "Chuck Swiger" References: <000a01c64a81$45eb6850$0201a8c0@oxy> <441BF838.1080600@mac.com><000601c64a87$51d7dee0$0201a8c0@oxy> <441BFF26.90807@mac.com> <000e01c64a8f$1b2bec80$0201a8c0@oxy> Date: Sat, 18 Mar 2006 14:42:13 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-2"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2670 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 X-Virus-Scanned: by Amavisd-new (Spamassassin+Razor2+Pyzor+DCC+Bayes db, Clamd Antivirus) at field.hu Cc: freebsd-performance@freebsd.org Subject: Re: packet drop with intel gigabit / marwell gigabit X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Mar 2006 13:42:15 -0000 i increased hz from 2000 to 5000, now the packet loss is decreased from 5-6% to 0.6-0,8% !!! huge improve! should i increase hz more? ----- Original Message ----- From: "OxY" To: "Chuck Swiger" Cc: Sent: Saturday, March 18, 2006 2:23 PM Subject: Re: packet drop with intel gigabit / marwell gigabit > currently i use HZ=2000 > here's the output of netstat -i, -s, and vmstat -i : > (currently i am uploading on the gigabit with ftp, 3 threads) > > Field root# vmstat -i > interrupt total rate > irq0: clk 27503959 1993 > irq1: atkbd0 1 0 > irq3: fxp0 2 0 > irq7: 146 0 > stray irq7 146 0 > irq8: rtc 1765569 127 > irq10: atapci1 2807786 203 > irq11: atapci0 475039 34 > irq13: npx0 1 0 > irq14: ata0 99 0 > Total 32552748 2359 > > Field root# netstat -i > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs > Coll > fxp0 1500 00:a0:c9:8d:79:68 13163545 0 21899372 1 > 0 > fxp0 1500 195.38.96.64/ field 141 - > 6 - - > em0 1500 00:0e:0c:a2:ac:42 68644181 4 66793904 0 > 0 > em0 1500 195.38.96.64/ field 211255811 - > - - > lo0 16384 129622061 0 129622061 > 0 0 > > netstat -s is here: > http://field.hu/netstat.txt > > ----- Original Message ----- > From: "Chuck Swiger" > To: "OxY" > Cc: > Sent: Saturday, March 18, 2006 1:37 PM > Subject: Re: packet drop with intel gigabit / marwell gigabit > > >> OxY wrote: >>> yeah, i googled these settings, but i put them back to default then! >>> i measured iperf performance, and it showed that the packet drop is >>> depending on the system load.. >> >> If you are using the normal interrupt-driven configuration, you should >> look at >> netstat -i, -s, and vmstat -i. If you're turning on device polling, you >> ought >> to retry your testing at higher HZ (try 2000 or 5000): >> >> echo 'kern.hz="2000"' >> /boot/loader.conf >> >> -- >> -Chuck > > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to > "freebsd-performance-unsubscribe@freebsd.org"