Rotating Staircase DeadLine scheduler for -mm
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- v1 Latest6 patches 1 replyIn review
Changelog from the cover letter
- Made it possible for the idle task to schedule on cpu_hotplug.
- Fixed the accounting across fork()
- Recalculation of priority for tasks that have already run this major rotation and are now on the expired array was wrong. It has been corrected.
- The bitmap error that has been hit on some architectures was made more verbose to make it clear that something has gone wrong, and will keep going off if the problem persists.
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/6 | lists: add list splice tailinclude/ | +42 | 0 replies | |
| 2/6 | sched: remove sleepavg from procfs/ | +0 | 0 replies | |
| 3/6 | sched: remove noninteractive flagfs/ include/ | +2 | 0 replies | |
| 4/6 | sched implement 180 bit sched bitmapinclude/ include/ | +7 | 0 replies | |
| 5/6 | sched: implement rsdl cpu schedulerinclude/ include/ kernel/ | +618 | 0 replies | |
| 6/6 | sched: document rsdl cpu schedulerDocumentation/ | +267 | 0 replies |
Reviews trailers per patch
None of the 6 patches has a Reviewed-by or Acked-by.
| Patch | Peter Zijlstra |
|---|---|
| 1/6 | Patch-by |
| 2/6 | |
| 3/6 | |
| 4/6 | |
| 5/6 | |
| 6/6 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH][RSDL-mm 0/6] Rotating Staircase DeadLine scheduler for -mm
What follows this email is a series of patches for the RSDL cpu scheduler as found in 2.6.21-rc3-mm1. This series is for 2.6.21-rc3-mm2 and has some bugfixes for the issues found so far. While it is not clear that I've attended to all the bugs, it is worth noting that a complete rewrite is a teensy bit more than a trivial change shall we say ;)
akpm it still has trouble on that monster config of yours but there's so much else going on in this -mm I don't know what to make of it. getting ppc to work on qemu was more work than I thought and I haven't succeeded there yet either :|
A rolled up patch can be found here:
http://ck.kolivas.org/patches/staircase-deadline/2.6.21-rc3-mm2-rsdl.patch
Patch series here:
http://ck.kolivas.org/patches/staircase-deadline/2.6.21-rc3-mm2/
and the patch series will follow. If time permits I will make available a newer version for the older kernels soon.
Changelog:
- Made it possible for the idle task to schedule on cpu_hotplug.
- Fixed the accounting across fork()
- Recalculation of priority for tasks that have already run this major rotation and are now on the expired array was wrong. It has been corrected.
- The bitmap error that has been hit on some architectures was made more verbose to make it clear that something has gone wrong, and will keep going off if the problem persists.
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