This is just for testing at the moment! The reason is the size of this patch.
In the interest of evolution, I've taken the RSDL cpu scheduler and increased the resolution of the task timekeeping to nanosecond resolution. This removes the need for the runqueue rotation component entirely out of RSDL. The design basically is mostly unchanged, minus over 150 lines of code for the rotation, yet should be slightly better performing. It should be indistinguishable in usage from v0.33. Other changes from v0.33: -rr interval was not being properly scaled with HZ -fix possible race in checking task_queued in task_running_tick -scale down rr interval for niced tasks if HZ can tolerate it -cull list_splice_tail What does this mean for the next version of RSDL? Assuming all works as expected on these test patches, it will be cleanest to submit a new series of patches for -mm with the renamed Staircase-Deadline scheduler and new documentation (when it's done). So for testing here are full rollups for 2.6.20.4 and 2.6.21-rc4: http://ck.kolivas.org/patches/staircase-deadline/2.6.20.4-sd-0.34-test.patch http://ck.kolivas.org/patches/staircase-deadline/2.6.21-rc4-sd-0.34-test.patch The patches available also include a rollup of sched: accurate user accounting as this code touches the same area and it is most convenient to include them together. (incrementals in each subdir of staircase-deadline/ for those interested). Thanks Mike for continuing to attempt to use the cluebat on me on this one. >From the start I wasn't sure if this was necessary or not but ends up being less code than RSDL. While I'm still far from being well, luckily I am in much better shape to be able to spend the time at the pc to have done this. Thanks to all those who expressed their concern. -- -ck - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
