> Is there something eating all your interrupts perhaps?
> What does looking at the output of "systat vmstat" for a while
I have a customer's DL145G2 I have been able to do a little testing
with. The only significant interrupts are bge1/pciide1 (it's shared),
around 100/sec (bge1 about 3-5/sec more than pciide1 according to
Disabling the nic doesn't help, and the BIOS has exactly one SATA-
related knob: ON/OFF!
top shows dd is mostly sleep/biowait, with low cpu use (93%-99.8%
idle, 0.2%-0.6% interrupt, 0%-6.2% system). As you might expect
the system is fairly unresponsive when this happens.
I couldn't find a newer bios on hp.com. I've tried these kernels:
amd64 GENERIC, GENERIC.MP from source check-out ~24h ago
amd64 GENERIC, GENERIC.MP latest snapshot
i386 GENERIC, GENERIC.MP latest snapshot
I didn't see a difference between the kernels.
Can you think of anything else to try while I've got the box
available? (it won't be here for long, unfortunately).