Messages in this thread | ![/](/images/icornerl.gif) | | Subject | LSI53C1030 (Fustion MPT) performance | From | Karl Pitrich <> | Date | Mon, 24 Nov 2003 11:09:24 +0100 |
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hi,
i got a new ibm intellistation z pro dual xeon (6221-49G) with on board Fusion MPT chipset (LSI53C1030) and fast U160 disks.
2.4.20-8 (redhat) and 2.6.0-test9-vanilla (each customer compiled minimal kernels) both yield very poor disk performance.
i didn't do specific benkchmarking, but mv'ing a 3GB $HOME to another partition takes at least 4x the time as on my old P4 workstation with IDE drive.
is poor performance with this controller a known problem? could that have to do something with smp?
in 2.6.0, the driver's cvs-versions seem to match the ones in the sources offered by LSI for download. lkml-archives and google weren't all too helpful.
any info/help apreciated,
/ karl
PS: in the course of this i studied dmesg and found:
calibrating APIC timer ... ..... CPU clock speed is 3066.0234 MHz. ..... host bus clock speed is 133.0314 MHz.
is 'host bus clock speed' != front side bus speed? this shows up also on other p4 machines with much faster FSB than 133 mhz.
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