2 x quad-core system is slower that 2 x dual core on FreeBSD

Claus Guttesen kometen at gmail.com
Mon Nov 19 10:06:27 PST 2007

On Nov 19, 2007 2:32 PM, Alexey Popov <lol at 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
> 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


When lenity and cruelty play for a kingdom,
the gentlest gamester is the soonest winner.


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