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Merge branch 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (76 commits)
  sched_clock: and multiplier for TSC to gtod drift
  sched_clock: record TSC after gtod
  sched_clock: only update deltas with local reads.
  sched_clock: fix calculation of other CPU
  sched_clock: stop maximum check on NO HZ
  sched_clock: widen the max and min time
  sched_clock: record from last tick
  sched: fix accounting in task delay accounting & migration
  sched: add avg-overlap support to RT tasks
  sched: terminate newidle balancing once at least one task has moved over
  sched: fix warning
  sched: build fix
  sched: sched_clock_cpu() based cpu_clock(), lockdep fix
  sched: export cpu_clock
  sched: make sched_{rt,fair}.c ifdefs more readable
  sched: bias effective_load() error towards failing wake_affine().
  sched: incremental effective_load()
  sched: correct wakeup weight calculations
  sched: fix mult overflow
  sched: update shares on wakeup
  ...
This commit is contained in:
Linus Torvalds 2008-07-14 13:54:49 -07:00
commit 17489c058e
18 changed files with 1555 additions and 570 deletions
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7
Documentation/scheduler/sched-domains.txt
View file

@ -61,10 +61,7 @@ builder by #define'ing ARCH_HASH_SCHED_DOMAIN, and exporting your
arch_init_sched_domains function. This function will attach domains to all
CPUs using cpu_attach_domain.
Implementors should change the line
#undef SCHED_DOMAIN_DEBUG
to
#define SCHED_DOMAIN_DEBUG
in kernel/sched.c as this enables an error checking parse of the sched domains
The sched-domains debugging infrastructure can be enabled by enabling
CONFIG_SCHED_DEBUG. This enables an error checking parse of the sched domains
which should catch most possible errors (described above). It also prints out
the domain structure in a visual format.

4
Documentation/scheduler/sched-rt-group.txt
View file

@ -51,9 +51,9 @@ needs only about 3% CPU time to do so, it can do with a 0.03 * 0.005s =
0.00015s. So this group can be scheduled with a period of 0.005s and a run time
of 0.00015s.
The remaining CPU time will be used for user input and other tass. Because
The remaining CPU time will be used for user input and other tasks. Because
realtime tasks have explicitly allocated the CPU time they need to perform
their tasks, buffer underruns in the graphocs or audio can be eliminated.
their tasks, buffer underruns in the graphics or audio can be eliminated.
NOTE: the above example is not fully implemented as of yet (2.6.25). We still
lack an EDF scheduler to make non-uniform periods usable.