From owner-freebsd-questions@FreeBSD.ORG Thu Jan 29 11:45:19 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 39E7A1065675 for ; Thu, 29 Jan 2009 11:45:19 +0000 (UTC) (envelope-from matrix@itlegion.ru) Received: from corpmail.itlegion.ru (corpmail.itlegion.ru [84.21.226.211]) by mx1.freebsd.org (Postfix) with SMTP id 2F7708FC1B for ; Thu, 29 Jan 2009 11:45:17 +0000 (UTC) (envelope-from matrix@itlegion.ru) Received: (qmail 78260 invoked from network); 29 Jan 2009 14:45:14 +0300 Received: from unknown (HELO ?192.168.0.12?) (192.168.0.12) by 84.21.226.211 with SMTP; 29 Jan 2009 14:45:14 +0300 Message-ID: <498196B8.1060101@itlegion.ru> Date: Thu, 29 Jan 2009 14:44:56 +0300 From: Artem Kuchin Organization: IT Legion User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: "freebsd-questions@freebsd.org" Content-Type: text/plain; charset=KOI8-R; format=flowed Content-Transfer-Encoding: 7bit Subject: 6.8 became very slow X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Jan 2009 11:45:19 -0000 I have a very strange situation here. There was a hosting box with 5 jails. Everything is 6.4 It was running twe driver with RAID 5. Then i had a crash and had to reinstall the system. So, i have installed FREEBSD 6.8, cvsed the latest, rebuilt everything and then just copied jails from the prev installation. So, the host system is 6.8 and the jails are 6.4. Also, raid is MIRROR now, not RAID5. The problem is that now everything became really slow. When i do top i see: load averages: 16.45, 14.86, 13.86 737 processes: 20 running, 703 sleeping, 14 zombie CPU: 15.9% user, 0.0% nice, 81.9% system, 2.2% interrupt, 0.0% idle Everything pretty much as it was. But 82% system CPU is really weird. I don;t remember exactly, but i think it was not like this before. AFAIK it meas 82% of CPU time is spent in the kernel. I look at the io stats: gstat: dT: 1.005s w: 1.000s L(q) ops/s r/s kBps ms/r w/s kBps ms/w %busy Name 0 0 0 0 0.0 0 0 0.0 0.0| acd0 0 0 0 0 0.0 0 0 0.0 0.0| ad2 0 0 0 0 0.0 0 0 0.0 0.0| ad2s1 0 9 8 16 3.9 1 8 0.6 3.1| twed0 0 0 0 0 0.0 0 0 0.0 0.0| twed1 0 0 0 0 0.0 0 0 0.0 0.0| ad2s1c 0 0 0 0 0.0 0 0 0.0 0.0| ad2s1d 0 9 8 16 3.9 1 8 0.6 3.2| twed0s1 0 0 0 0 0.0 0 0 0.0 0.0| twed1s1 0 0 0 0 0.0 0 0 0.0 0.0| twed0s1a 0 0 0 0 0.0 0 0 0.0 0.0| twed0s1b 0 0 0 0 0.0 0 0 0.0 0.0| twed0s1c 0 0 0 0 0.0 0 0 0.0 0.0| twed0s1d 0 0 0 0 0.0 0 0 0.0 0.0| twed0s1e 0 8 8 16 3.9 0 0 0.0 3.1| twed0s1f 0 1 0 0 0.0 1 8 0.8 0.1| twed0s1g 0 0 0 0 0.0 0 0 0.0 0.0| twed1s1a 0 0 0 0 0.0 0 0 0.0 0.0| twed1s1b 0 0 0 0 0.0 0 0 0.0 0.0| twed1s1c 0 0 0 0 0.0 0 0 0.0 0.0| twed1s1d 0 0 0 0 0.0 0 0 0.0 0.0| twed1s1e 0 0 0 0 0.0 0 0 0.0 0.0| twed1s1f This seems to be okay. Any idea what might happened? -- Regasrd Artem Kuchin