From owner-freebsd-questions Wed Jan 12 18:22:38 2000 Delivered-To: freebsd-questions@freebsd.org Received: from dorifer.heim3.tu-clausthal.de (dorifer.heim3.tu-clausthal.de [139.174.243.252]) by hub.freebsd.org (Postfix) with ESMTP id CFDAE15567 for ; Wed, 12 Jan 2000 18:22:24 -0800 (PST) (envelope-from olli@dorifer.heim3.tu-clausthal.de) Received: (from olli@localhost) by dorifer.heim3.tu-clausthal.de (8.9.3/8.9.3) id DAA63326; Thu, 13 Jan 2000 03:22:22 +0100 (CET) (envelope-from olli) Date: Thu, 13 Jan 2000 03:22:22 +0100 (CET) Message-Id: <200001130222.DAA63326@dorifer.heim3.tu-clausthal.de> From: Oliver Fromme To: freebsd-questions@FreeBSD.ORG Reply-To: freebsd-questions@FreeBSD.ORG Subject: Re: high load, nothing happening? X-Newsgroups: list.freebsd-questions In-Reply-To: <85j0cq$1hbq$1@atlantis.rz.tu-clausthal.de> User-Agent: tin/1.4.1-19991201 ("Polish") (UNIX) (FreeBSD/3.4-19991219-STABLE (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG spork wrote in list.freebsd-questions: > [...] > I have maxusers at 512, NMBCLUSTERS at 4096, and the following sysctl > adjustments: Not directly related to your question, but... 4096 mbuf clusters seems pretty low for a server of that size. I'd recommend that you carefully watch ``netstat -m'' during operation. There should always be plenty of mbuf room left, even in peak situations. I suspect that you'll have to increase the number. > systat, vmstat, iostat all look normal, and I've not seen any curious > entries in the logs. So vmstat and top report that the box is mostly idle (nearly 100%), there are no processes that consume significant amounts of CPU time, and the load is still >= 1.0? Is the system usable, or does it "feel" slow when used interactively? > So that's the info, my questions are "why the load", and "is that OK"? > Something seems wrong here, but I'm at a loss. If the above is true, then it's certainly not OK, and there's definitely something wrong. I experienced similar things on other boxes, even simple workstations (no big servers): the load average raised to 1.0, then dropped back to 0.0 after a while, for no apparent reason. It didn't affect operation at all, so I suspected a bug in the load average calculation, and I didn't investigate any further. Regards Oliver -- Oliver Fromme, Leibnizstr. 18/61, 38678 Clausthal, Germany (Info: finger userinfo:olli@dorifer.heim3.tu-clausthal.de) "In jedem Stück Kohle wartet ein Diamant auf seine Geburt" (Terry Pratchett) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message