[lkml]   [2000]   [Sep]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: An elevator algorithm (patch)
On Sun, 17 Sep 2000, Andrea Arcangeli wrote:

: And with the default latency values ("infinite") with the test2
: elevator if you're using scsi as your device, the patch can't make
: runtime differences either.

The test2 elevator (assuming it is the same as the test8 version) in the
infinite latency case will always send the request with the lowest sector
number to the drive. (The request queue will always be sorted, since the
elevator function degenerates to insertion sort.) Do you really suggest
that this is as good as a real elevator algorithm?

Peter Österlund Email:
Sköndalsvägen 35
S-128 66 Sköndal Home page:
Sweden Phone: +46 8 942647

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:39    [W:0.046 / U:11.448 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site