David> Hi Ben, I've heard that running a SMP processor on a UP
David> machine can slow it down quite a bit. Try compiling your
David> kernel as UP, and then see what happens. I bet it'll speed
David> up by quite a bit, but I'm not sure by how much, or if
David> it'll speed up enough to make up for the speed discrepancy
David> between the two machines.
I recompiled the SCSI system UP, and tried again:
[ben@gilgamesh:/tmp]% time rm -rf mozilla 12:56PM
rm -rf mozilla 0.09s user 0.74s system 18% cpu 4.414 total
(SMP time next, for those of us who don't remember ;))
>> [ben@gilgamesh:/tmp]% time rm -rf mozilla 4:15PM rm -rf mozilla
>> 0.13s user 0.93s system 18% cpu 5.581 total
There's more going on than just an SMP vs. SCSI interaction here.
SCSI is just being dog-slow, compared to IDE.
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