Eric Lee / smarc-ti-linux-kernel

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Commit aac6abca858386438d9a7233c3471d2ecfa2f704

Authored by Parag Warudkar
Committed by Ingo Molnar
1 parent 3e51f33fcc
Exists in master and in 20 other branches dlt-processor-sdk-linux-03.00.00.04, newt-ti-linux-3.12.y, processor-sdk-linux-01.00.00, processor-sdk-linux-02.00.01, smarc-ti-linux-3.12.10, smarc-ti-linux-3.12.y, smarc-ti-linux-3.14.y, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.12.y, ti-linux-3.14.y, ti-linux-3.15.y, ti-lsk-linux-4.1.y

sched: default to n for GROUP_SCHED and FAIR_GROUP_SCHED 

GROUP_SCHED is confirmed to cause unacceptable latencies, see:

   http://lkml.org/lkml/2008/5/2/370.

Mark it EXPERIMENTAL and default to no for now.

Signed-off-by: Parag Warudkar <parag.warudkar@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Showing 1 changed file with 3 additions and 2 deletions Side-by-side Diff

... ... @@ -324,7 +324,8 @@
324 324  
325 325 config GROUP_SCHED
326 326 bool "Group CPU scheduler"
327   - default y
  327 + depends on EXPERIMENTAL
  328 + default n
328 329 help
329 330 This feature lets CPU scheduler recognize task groups and control CPU
330 331 bandwidth allocation to such task groups.
... ... @@ -332,7 +333,7 @@
332 333 config FAIR_GROUP_SCHED
333 334 bool "Group scheduling for SCHED_OTHER"
334 335 depends on GROUP_SCHED
335   - default y
  336 + default GROUP_SCHED
336 337  
337 338 config RT_GROUP_SCHED
338 339 bool "Group scheduling for SCHED_RR/FIFO"