Date: Mon, 19 Nov 2007 19:06:18 +0100 From: "Claus Guttesen" <kometen@gmail.com> To: "Alexey Popov" <lol@chistydom.ru> Cc: freebsd-stable@freebsd.org Subject: Re: 2 x quad-core system is slower that 2 x dual core on FreeBSD Message-ID: <b41c75520711191006v581d123bs72e705c77b928853@mail.gmail.com> In-Reply-To: <4741905E.8050300@chistydom.ru> References: <4741905E.8050300@chistydom.ru>
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On Nov 19, 2007 2:32 PM, Alexey Popov <lol@chistydom.ru> wrote: > Hi. > > I have a large pool of web backends (Apache + mod_php5) with > 2 x Xeon 3.2GHz processors and 2 x Xeon 5120 dual-core processors. The > workload is mostly CPU-bound. I'm using 6-STABLE-amd64 and also tried > 7-STABLE. > > Now I'm trying to use new hardware with 2 x Xeon 5320 (quad-core), but > it can not work under the same load as dual-core. It shows up to 80% > system CPU load in top: > > last pid: 3850; load averages: 22.51, 19.75, 12.18 Very high load. Could it be the raid-controller? I had a db-server with horibble performance due to a cheap raid-controller. Moving to a ciss-controller (DL380 G5) solved all my issues. My load decreased 100 fold. -- regards Claus When lenity and cruelty play for a kingdom, the gentlest gamester is the soonest winner. Shakespeare
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