[PATCH] Staircase scheduler v7.8

[PATCH] Staircase scheduler v7.8

[Con Kolivas]

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This is a scheduler policy rewrite designed to be interactive by design
without tweaks or tuning and be lean and extensible for all sorts of
settings. (see previous announcements for more detail).


Patches (including incrementals from previous versions) against 2.6.7
can be downloaded from:
http://ck.kolivas.org/patches/2.6/2.6.7

For those with -ck kernels, the ck patchset was updated to 2.6.7-ck4
with no other changes to remain in sync with the staircase scheduler:
http://kernel.kolivas.org


Version 7.7 proved to be very stable so this version introduces some
planned improvements. So far no issues have shown up in testing, and
performance appears better.


Changes:
- - Yield logic made robust. Tasks that yield go after everything else,
but once scheduled are seen as their normal priority - lots of
applications use yield and this makes them behave a lot better.
- - Uninterruptible sleep has no effect on burst during interactive mode -
this improves the responsiveness under I/O load
- - The 'non-interactive' and 'compute' mode is now much stricter about
cpu distribution
- - Code cleanups


Patch not attached for brevity of email size.
7 files changed, 283 insertions(+), 610 deletions(-)
Signed-off-by: Con Kolivas <kernel@kolivas.org>

Comments, questions, patches and testing welcome,
Con

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