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June 29, 2004

ide=nodma

Right now, I'm copying about 1.8 GB of stuff from one partition to another. This kernel booted as follows:

title failsafe
   kernel (hd0,5)/vmlinuz.shipped root=/dev/hda8 ide=nodma apm=off \
   acpi=off vga=normal nosmp noapic maxcpus=0 3
   initrd (hd0,5)/initrd.shipped

The killer at this point is ide=nodma. Seems to have slowed the disk down about 1000x. Funny how there can be system bottlenecks like that even today.

Posted by Mark at June 29, 2004 10:38 PM