Srikar Dronamraju f03bb6760b sched/numa: Use task faults only if numa_group is not yet set up ... When numa_group faults are available, task_numa_placement only uses numa_group faults to evaluate preferred node. However it still accounts task faults and even evaluates the preferred node just based on task faults just to discard it in favour of preferred node chosen on the basis of numa_group. Instead use task faults only if numa_group is not set. Running SPECjbb2005 on a 4 node machine and comparing bops/JVM JVMS LAST_PATCH WITH_PATCH %CHANGE 16 25549.6 25215.7 -1.30 1 73190 72107 -1.47 Running SPECjbb2005 on a 16 node machine and comparing bops/JVM JVMS LAST_PATCH WITH_PATCH %CHANGE 8 113437 113372 -0.05 1 196130 177403 -9.54 (numbers from v1 based on v4.17-rc5) Testcase Time: Min Max Avg StdDev numa01.sh Real: 506.35 794.46 599.06 104.26 numa01.sh Sys: 150.37 223.56 195.99 24.94 numa01.sh User: 43450.69 61752.04 49281.50 6635.33 numa02.sh Real: 60.33 62.40 61.31 0.90 numa02.sh Sys: 18.12 31.66 24.28 5.89 numa02.sh User: 5203.91 5325.32 5260.29 49.98 numa03.sh Real: 696.47 853.62 745.80 57.28 numa03.sh Sys: 85.68 123.71 97.89 13.48 numa03.sh User: 55978.45 66418.63 59254.94 3737.97 numa04.sh Real: 444.05 514.83 497.06 26.85 numa04.sh Sys: 230.39 375.79 316.23 48.58 numa04.sh User: 35403.12 41004.10 39720.80 2163.08 numa05.sh Real: 423.09 460.41 439.57 13.92 numa05.sh Sys: 287.38 480.15 369.37 68.52 numa05.sh User: 34732.12 38016.80 36255.85 1070.51 Testcase Time: Min Max Avg StdDev %Change numa01.sh Real: 478.45 565.90 515.11 30.87 16.29% numa01.sh Sys: 207.79 271.04 232.94 21.33 -15.8% numa01.sh User: 39763.93 47303.12 43210.73 2644.86 14.04% numa02.sh Real: 60.00 61.46 60.78 0.49 0.871% numa02.sh Sys: 15.71 25.31 20.69 3.42 17.35% numa02.sh User: 5175.92 5265.86 5235.97 32.82 0.464% numa03.sh Real: 776.42 834.85 806.01 23.22 -7.47% numa03.sh Sys: 114.43 128.75 121.65 5.49 -19.5% numa03.sh User: 60773.93 64855.25 62616.91 1576.39 -5.36% numa04.sh Real: 456.93 511.95 482.91 20.88 2.930% numa04.sh Sys: 178.09 460.89 356.86 94.58 -11.3% numa04.sh User: 36312.09 42553.24 39623.21 2247.96 0.246% numa05.sh Real: 393.98 493.48 436.61 35.59 0.677% numa05.sh Sys: 164.49 329.15 265.87 61.78 38.92% numa05.sh User: 33182.65 36654.53 35074.51 1187.71 3.368% Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Mel Gorman <mgorman@techsingularity.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@surriel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1529514181-9842-6-git-send-email-srikar@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2018-07-25 11:41:06 +02:00
..
autogroup.c	sched/autogroup: Fix possible Spectre-v1 indexing for sched_prio_to_weight[]	2018-05-05 08:34:42 +02:00
autogroup.h	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
clock.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
completion.c	sched/completions: Use bool in try_wait_for_completion()	2018-03-09 08:00:18 +01:00
core.c	sched/debug: Show the sum wait time of a task group	2018-07-25 11:41:05 +02:00
cpuacct.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cpudeadline.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cpudeadline.h	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cpufreq.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cpufreq_schedutil.c	sched/fair: Remove #ifdefs from scale_rt_capacity()	2018-07-25 11:41:05 +02:00
cpupri.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cpupri.h	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cputime.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
deadline.c	Merge branch 'sched/urgent' into sched/core, to pick up fixes	2018-07-25 11:29:58 +02:00
debug.c	sched/debug: Use match_string() helper instead of open-coded logic	2018-06-21 15:45:31 +02:00
fair.c	sched/numa: Use task faults only if numa_group is not yet set up	2018-07-25 11:41:06 +02:00
features.h	sched/fair: Update util_est only on util_avg updates	2018-03-20 08:11:09 +01:00
idle.c	sched: idle: Select idle state before stopping the tick	2018-04-09 11:54:07 +02:00
isolation.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
loadavg.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
Makefile	sched/pelt: Move PELT related code in a dedicated file	2018-07-15 23:51:20 +02:00
membarrier.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
pelt.c	sched/core: Use PELT for scale_rt_capacity()	2018-07-16 00:16:25 +02:00
pelt.h	sched/irq: Add IRQ utilization tracking	2018-07-15 23:51:21 +02:00
rt.c	Merge branch 'sched/urgent' into sched/core, to pick up fixes	2018-07-25 11:29:58 +02:00
sched-pelt.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sched.h	sched/fair: Remove #ifdefs from scale_rt_capacity()	2018-07-25 11:41:05 +02:00
stats.c	proc: introduce proc_create_seq{,_data}	2018-05-16 07:23:35 +02:00
stats.h	sched: Clean up and harmonize the coding style of the scheduler code base	2018-03-03 15:50:21 +01:00
stop_task.c	sched: Clean up and harmonize the coding style of the scheduler code base	2018-03-03 15:50:21 +01:00
swait.c	sched/swait: Rename to exclusive	2018-06-20 11:35:56 +02:00
topology.c	sched/topology: Check variable group before dereferencing it	2018-07-25 11:25:07 +02:00
wait.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
wait_bit.c	sched/wait: Improve __var_waitqueue() code generation	2018-03-20 08:23:25 +01:00