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v0.5.1
https://github.com/torvalds/linux
02 December 2023, 22:23:51 UTC
Revision 0ff922452df86f3e9a2c6f705c4588ec62d096a7 authored by Shailabh Nagar on 14 July 2006, 07:24:37 UTC, committed by Linus Torvalds on 15 July 2006, 04:53:56 UTC 
[PATCH] per-task-delay-accounting: sync block I/O and swapin delay collection
 
Unlike earlier iterations of the delay accounting patches, now delays are only
collected for the actual I/O waits rather than try and cover the delays seen
in I/O submission paths.

Account separately for block I/O delays incurred as a result of swapin page
faults whose frequency can be affected by the task/process' rss limit.  Hence
swapin delays can act as feedback for rss limit changes independent of I/O
priority changes.

Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com>
Signed-off-by: Balbir Singh <balbir@in.ibm.com>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Peter Chubb <peterc@gelato.unsw.edu.au>
Cc: Erich Focht <efocht@ess.nec.de>
Cc: Levent Serinol <lserinol@gmail.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent ca74e92
History
Tip revision: 0ff922452df86f3e9a2c6f705c4588ec62d096a7 authored by Shailabh Nagar on 14 July 2006, 07:24:37 UTC
[PATCH] per-task-delay-accounting: sync block I/O and swapin delay collection
Tip revision: 0ff9224
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