The latest sched-devel.git tree can be pulled from:
git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel.git
people were busy sending patches, so there's lots of updates since the
first announcement of the cfs-devel.git tree four days ago:
include/linux/sched.h | 4
init/Kconfig | 9 +
kernel/sched.c | 374 +++++++++++++++++++++++++++++++++++++++++++-----
kernel/sched_debug.c | 22 +-
kernel/sched_fair.c | 191 ++++++++++++++++++++----
kernel/sched_idletask.c | 5
kernel/sched_rt.c | 5
kernel/sysctl.c | 19 ++
8 files changed, 552 insertions(+), 77 deletions(-)
the most user-noticeable improvement should be the latency/interactivity
fixes from Mike Galbraith and Peter Zijlstra. The biggest (and most
complex) item is the new group scheduler code from Srivatsa Vaddagiri.
There's also speedups from Dmitry Adamushko and various cleanups and
fixes. Also added in the yield workaround that should address the
regression reported by Antoine Martin.
Changes:
- the biggest item is the addition of the group scheduler from Srivatsa
Vaddagiri - this is not configurable yet, it depends on
CONFIG_CONTAINERS. It causes no overhead on !CONFIG_CONTAINERS. This
code clearly seems mature now, hopefully the container bits go
upstream in 2.6.24 too. Srivatsa did lots of heavy lifting in the past
few months, and this final bit of code that moves in all the
infrastructure changes almost nothing in the core scheduler.
- a triplet of nice simplifications from Dmitry Adamushko. Most notably
Dmitry got rid of se->fair_key which shaves 8 bytes of task_struct and
gives further speedup. Thanks Dmitry!
- continued refinements to the SMP ->vruntime code and timeslicing by
Peter Zijstra and Mike Galbraith.
As usual, bugreports, fixes and suggestions are welcome and please
holler if some patch went missing in action.
Ingo
------------------>
Dmitry Adamushko (3):
sched: clean up struct load_stat
sched: clean up schedstat block in dequeue_entity()
sched: optimize away ->fair_key
Matthias Kaehlcke (1):
sched: use list_for_each_entry_safe() in __wake_up_common()
Mike Galbraith (1):
sched: fix SMP migration latencies
Peter Zijlstra (7):
sched: simplify SCHED_FEAT_* code
sched: new task placement for vruntime
sched: simplify adaptive latency
sched: clean up new task placement
sched: add tree based averages
sched: handle vruntime overflow
sched: better min_vruntime tracking
Srivatsa Vaddagiri (1):
sched: group-scheduler core
Ingo Molnar (27):
sched: fix new-task method
sched: resched task in task_new_fair()
sched: small sched_debug cleanup
sched: debug: track maximum 'slice'
sched: uniform tunings
sched: use constants if !CONFIG_SCHED_DEBUG
sched: remove stat_gran
sched: remove precise CPU load
sched: remove precise CPU load calculations #2
sched: track cfs_rq->curr on !group-scheduling too
sched: cleanup: simplify cfs_rq_curr() methods
sched: uninline __enqueue_entity()/__dequeue_entity()
sched: speed up update_load_add/_sub()
sched: clean up calc_weighted()
sched: introduce se->vruntime
sched: move sched_feat() definitions
sched: optimize vruntime based scheduling
sched: simplify check_preempt() methods
sched: wakeup granularity fix
sched: add se->vruntime debugging
sched: sync up ->min_vruntime when going idle
sched: add more vruntime statistics
sched: debug: update exec_clock only when SCHED_DEBUG
sched: remove wait_runtime limit
sched: remove wait_runtime fields and features
sched: x86: allow single-depth wchan output
sched: yield workaround
arch/i386/Kconfig | 11
include/linux/sched.h | 21 -
init/Kconfig | 9
kernel/sched.c | 558 +++++++++++++++++++++++++------------
kernel/sched_debug.c | 100 +++---
kernel/sched_fair.c | 716 +++++++++++++++++++-----------------------------
kernel/sched_idletask.c | 5
kernel/sched_rt.c | 5
kernel/sysctl.c | 33 +-
9 files changed, 765 insertions(+), 693 deletions(-)
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