diff options
| author | Ingo Molnar <mingo@kernel.org> | 2022-03-15 09:02:10 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2022-03-15 09:05:05 +0100 |
| commit | ccacfe56d7ecdd2922256b87e9ea46f13bb03b55 (patch) | |
| tree | 1e8e35493c74ae579f977af08fcb9e4dccfd8faf /kernel/sched/deadline.c | |
| parent | f2aa197e4794bf4c2c0c9570684f86e6fa103e8b (diff) | |
| parent | 4ff8f2ca6ccd9e0cc5665d09f86d631b3ae3a14c (diff) | |
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>
Diffstat (limited to 'kernel/sched/deadline.c')
| -rw-r--r-- | kernel/sched/deadline.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 11cdc6d0c45f..fb4255ae0b2c 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -15,8 +15,6 @@ * Michael Trimarchi <michael@amarulasolutions.com>, * Fabio Checconi <fchecconi@gmail.com> */ -#include "sched.h" -#include "pelt.h" static inline struct task_struct *dl_task_of(struct sched_dl_entity *dl_se) { |