Messages in this thread | | | Subject | Re: Dual 1.7 GHz Xeon -- slow, interrupts not balance, etc | Date | Thu, 16 Aug 2001 23:10:18 +0100 (BST) | From | Alan Cox <> |
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> I've been trying to figure out why two Dell Precision 530 Workstations > (dual 1.7 GHZ Intel Xeon) we just purchased running Linux (I installed > Debian with 2.4.7 and 2.4.8 kernels) are much slower than expected. > Note that they were just as slow with the vanilla RedHat 7.1 > installation they were shipped with. Our dual 1 GHz PIII is just as > fast as they are. I'm not sure if it's a hardware or kernel
If you look at the figures from the various benchmarking sites that doesnt sound unexpected. If you can recode your applications (eg if its a complex analysis problem) to use SSE2 and the like you may well get big speed ups
> hardware. No SCSI, all IDE. 400 MHz RDRAM, etc. However, the PIII > box only has 512MB RAM compared to the 1 GB of RAM the Xeon boxes > have.
The impact of that depends entirely on your application
> Any ideas why CPU1 isn't getting any interrupts? Incidentally, > interrupts appear to be fairly well balanced on our PIII box.
Do the boot messages ay anothing about this ?
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