Messages in this thread | | | Date | Wed, 23 May 2007 20:34:36 +0100 | From | Alan Cox <> | Subject | Re: [PATCH] CDROM: replace jiffies busyloop with msleep |
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> driver was snappy in that regard. When I replaced our sleeping loop with a > busy-wait same as the original the snappyness returned and moreover, reading > the TOC from the CD went from something close to a minute to approximately a > second. Thought that minute was just because I was dealing with an old junk > 1-speed drive...
It happens. If you want to be fairer you can check need_resched in the loop so that you still share the CPU fairly with other users.
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