Interesting observation on Reiser4 flush delays and IO scheduler

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On my laptop while running heavy disk read/write loads, I have
discovered that the deadline IO scheduler gives me a much better "feel"
and much shorter (and fewer) system freezes.  This is as compared to the
CFQ scheduler.

I'm not sure why this is yet.  A rough guess is that Reiser4's atom
merging, etc, is not preserving the data CFQ needs to time slice and
prioritize disk IO.  But I don't have any evidence for this guess.  Is
it plausible?

Something to think about.
-- 
Zan Lynx <zlynx@xxxxxxx>

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