From: Ingo Molnar <mingo@kernel.org>
Date: Tue, 15 Mar 2022 08:02:10 +0000 (+0100)
Subject: Merge branch 'sched/fast-headers' into sched/core
X-Git-Tag: v6.1-rc5~1779^2~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ccacfe56d7ecdd2922256b87e9ea46f13bb03b55;p=platform%2Fkernel%2Flinux-starfive.git

Merge branch 'sched/fast-headers' into sched/core

Merge the scheduler build speedup of the fast-headers tree.

Cumulative scheduler (kernel/sched/) build time speedup on a
Linux distribution's config, which enables all scheduler features,
compared to the vanilla kernel:

      _____________________________________________________________________________
     |
     |  Vanilla kernel (v5.13-rc7):
     |_____________________________________________________________________________
     |
     |  Performance counter stats for 'make -j96 kernel/sched/' (3 runs):
     |
     |   126,975,564,374      instructions              #    1.45  insn per cycle           ( +-  0.00% )
     |    87,637,847,671      cycles                    #    3.959 GHz                      ( +-  0.30% )
     |         22,136.96 msec cpu-clock                 #    7.499 CPUs utilized            ( +-  0.29% )
     |
     |            2.9520 +- 0.0169 seconds time elapsed  ( +-  0.57% )
     |_____________________________________________________________________________
     |
     |  Patched kernel:
     |_____________________________________________________________________________
     |
     | Performance counter stats for 'make -j96 kernel/sched/' (3 runs):
     |
     |    50,420,496,914      instructions              #    1.47  insn per cycle           ( +-  0.00% )
     |    34,234,322,038      cycles                    #    3.946 GHz                      ( +-  0.31% )
     |          8,675.81 msec cpu-clock                 #    3.053 CPUs utilized            ( +-  0.45% )
     |
     |            2.8420 +- 0.0181 seconds time elapsed  ( +-  0.64% )
     |_____________________________________________________________________________

    Summary:

      - CPU time used to build the scheduler dropped by -60.9%, a reduction
        from 22.1 clock-seconds to 8.7 clock-seconds.

      - Wall-clock time to build the scheduler dropped by -3.9%, a reduction
        from 2.95 seconds to 2.84 seconds.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

ccacfe56d7ecdd2922256b87e9ea46f13bb03b55
diff --cc kernel/sched/deadline.c
index 11cdc6d,fca2d7d..fb4255a
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@@ -15,9 -15,9 +15,7 @@@
   *                    Michael Trimarchi <michael@amarulasolutions.com>,
   *                    Fabio Checconi <fchecconi@gmail.com>
   */
- #include "sched.h"
- #include "pelt.h"
  
 -struct dl_bandwidth def_dl_bandwidth;
 -
  static inline struct task_struct *dl_task_of(struct sched_dl_entity *dl_se)
  {
  	return container_of(dl_se, struct task_struct, dl);