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| author | Ingo Molnar <mingo@elte.hu> | 2008-04-02 13:23:22 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:41:34 +0200 |
| commit | 13af4836b3914b23946f6a8982934e2c828c183f (patch) | |
| tree | 8dbca8c4c76ceff32dc6de36b987ed5dc5ea8f59 | |
| parent | f5149a49f994e5c469ac398af7cdeb8eb612d3a4 (diff) | |
| download | linux-3.10-13af4836b3914b23946f6a8982934e2c828c183f.tar.gz linux-3.10-13af4836b3914b23946f6a8982934e2c828c183f.tar.bz2 linux-3.10-13af4836b3914b23946f6a8982934e2c828c183f.zip | |
x86: improve default idle
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/kernel/process_32.c | 8 | ||||
| -rw-r--r-- | arch/x86/kernel/process_64.c | 8 |
2 files changed, 0 insertions, 16 deletions
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 08c41ed5e80..3903a8f2eb9 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -113,16 +113,8 @@ void default_idle(void) local_irq_disable(); if (!need_resched()) { - ktime_t t0, t1; - u64 t0n, t1n; - - t0 = ktime_get(); - t0n = ktime_to_ns(t0); safe_halt(); /* enables interrupts racelessly */ local_irq_disable(); - t1 = ktime_get(); - t1n = ktime_to_ns(t1); - sched_clock_idle_wakeup_event(t1n - t0n); } local_irq_enable(); current_thread_info()->status |= TS_POLLING; diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 4f40272474d..e75ccc8a2b8 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -107,16 +107,8 @@ void default_idle(void) smp_mb(); local_irq_disable(); if (!need_resched()) { - ktime_t t0, t1; - u64 t0n, t1n; - - t0 = ktime_get(); - t0n = ktime_to_ns(t0); safe_halt(); /* enables interrupts racelessly */ local_irq_disable(); - t1 = ktime_get(); - t1n = ktime_to_ns(t1); - sched_clock_idle_wakeup_event(t1n - t0n); } local_irq_enable(); current_thread_info()->status |= TS_POLLING; |