Date: Sat, 11 Nov 2006 09:36:25 +0100 (CET) From: Zbigniew Szalbot <zbyszek@szalbot.homedns.org> To: Kris Kennaway <kris@obsecurity.org> Cc: freebsd-questions@freebsd.org Subject: Re: periodic, short freezes Message-ID: <Pine.BSF.4.64.0611110933520.67555@192.168.11.51> In-Reply-To: <20061111063313.GB81772@xor.obsecurity.org> References: <Pine.BSF.4.64.0611090907440.9485@192.168.11.51> <20061109192407.GA43267@xor.obsecurity.org> <Pine.BSF.4.64.0611092255160.39407@192.168.11.51> <20061109220926.GA45759@xor.obsecurity.org> <Pine.BSF.4.64.0611092327310.41783@192.168.11.51> <20061109235515.GA46945@xor.obsecurity.org> <Pine.BSF.4.64.0611101016220.96922@192.168.11.51> <20061111063313.GB81772@xor.obsecurity.org>
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Hello, On Sat, 11 Nov 2006, Kris Kennaway wrote: > The fact that swap is in use, together with your description, > indicates that your system is overloaded; those transient loads are > causing it to periodically demand more working memory than is backed > by RAM, so the system goes into a frenzy of swapping trying to > accomodate, and system performance falls in the toilet until the load > goes away. > > Add more RAM or limit the workload. Now that something to check - thank you very much Kris. Is that so that on a typical system with enough memory to do its job there is no swap use on average? From what I can tell swap is always used to some extent but I have checked another system and swap use there is 0%. So you may be right that this is the problem. Jonathan - what is your swap use? Cause you also experience this kind of problem... Thanks! -- Zbigniew Szalbot
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