From owner-freebsd-hackers Mon Feb 10 9:35:48 2003 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 97B2E37B401 for ; Mon, 10 Feb 2003 09:35:46 -0800 (PST) Received: from icomag.de (ns.icomag.de [195.227.115.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2C8A143F75 for ; Mon, 10 Feb 2003 09:35:45 -0800 (PST) (envelope-from bgd@icomag.de) Received: from localhost (bgd@localhost) by icomag.de (8.12.3/8.11.3) with ESMTP id h1AHZhh5046181 for ; Mon, 10 Feb 2003 18:35:43 +0100 (CET) (envelope-from bgd@icomag.de) Date: Mon, 10 Feb 2003 18:35:43 +0100 (CET) From: Bogdan TARU X-X-Sender: To: Subject: gettings snapshots of load spikes Message-ID: <20030210182004.G45765-100000@fw.office.icom> 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 Hi hackers, I am having a real weird problem with a newly installed Dell PowerEdge 2650 which acts as a web (Apache) and mail server(Procmail). The load just 'spikes' sometimes (to 40.00 or so), but immediately starts to go down. No matter what I've tried I couldn't get a snapshot of the running processes, to discover which one(s) was the one responsible for this load. I have even tried running 'top -S -t -q -u -d 1' in a 'while (1)' loop from a shell, and redirecting the output to a file. I got nothing in the processlist, just the 'last pid' value was incremented by approx. 10. One question would be: any idea of how to get a snapshot of the system in the exact moment when the load sky-rockets? The other would be if there are any known problems related to 4.7-release-p2 (and these load spikes, of course). My configuration follows: - Dell PowerEdge 2650 (2x P4 at 1.8Ghz, 1GB of Ram, raid5 controller - Perc 3/di, dual Broadcom Gigabit onboard) - Could a big partition (260GB) cause the problems above? 'cause I've got one. - FreeBSD 4.7-RELEASE-p2 On this machine I run only Apache, Procmail, Pureftp (ftp daemon idle most of the time) and NTP. The mail/ftp traffic can be easily ignored, but Apache is tuned as a larg installation (max of 2000 children, usually having only 500 running -- out of which approx. 100 have requests, and the other just idling). I don't have any cron jobs except for the ones default in FreeBSD. Thank you for your help, bogdan ---------------------------- iCom Media AG Kirchweg 36 Koln, 50858 Germany Phone: +49-(0)221-485-689-16 Fax : +49-(0)221-485-689-20 Mobile:+49-(0)173-906-46-01 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message