On Mon, 16 Dec 2002, Georg Nikodym wrote:

Incidentally, a colleague claimed to have seem this behaviour on a
non-rmap 2.4.20.

1. Known behaviour?
2. Is there any data that I should be collecting that people are
   interested in?
3. Or should I just go back to 2.4.19-rmap14b (which did not trouble me
   in this way)?

The suspect is the disk elevator, which isn't scheduling requests
in a way to cause lower read latency, but is optimised more for
throughput.  This results in some pauses.

I'll need to look into it.

regards,

Rik
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