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| author | Frederic Weisbecker <[email protected]> | 2020-07-17 14:05:49 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2020-07-17 19:55:24 +0000 |
| commit | d4f7dae87096dfe722bf32aa82076ece1063746c (patch) | |
| tree | 86ec909b0294f69482200f4c691854005a180554 /drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | |
| parent | timers: Expand clk forward logic beyond nohz (diff) | |
| download | kernel-d4f7dae87096dfe722bf32aa82076ece1063746c.tar.gz kernel-d4f7dae87096dfe722bf32aa82076ece1063746c.zip | |
timers: Spare timer softirq until next expiry
Now that the core timer infrastructure doesn't depend anymore on
periodic base->clk increments, even when the CPU is not in NO_HZ mode,
timer softirqs can be skipped until there are timers to expire.
Some spurious softirqs can still remain since base->next_expiry doesn't
keep track of canceled timers but this still reduces the number of softirqs
significantly: ~15 times less for HZ=1000 and ~5 times less for HZ=100.
Signed-off-by: Frederic Weisbecker <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Tested-by: Juri Lelli <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c')
0 files changed, 0 insertions, 0 deletions