I noticed that the default elevator applies to everything, including USB
memory sticks. I thought the block device driver would change the I/O
scheduler to something more appropriate for a memory stick, such as the
noop scheduler. I switched to the noop scheduler for just the memory
stick, and there was an improvement in performance. I haven't done a
detailed statistical analysis to verify my empirical impression.
I have a few questions:
1) Is there a reason for the block device driver not changing the I/O
scheduler to noop?
2) How do I modify HAL to change the I/O scheduler when it detects that
a hotplug for a memory stick?
I really need to set down and learn then ins and outs of HAL.
Bill Anderson
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