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| author | Arjan van de Ven <arjan@infradead.org> | 2010-07-28 06:02:10 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-08-02 21:45:58 +0200 |
| commit | af5ab277ded04bd9bc6b048c5a2f0e7d70ef0867 (patch) | |
| tree | 7c593610e47096dd6592b8dbfe166428cc079ed6 /kernel/acct.c | |
| parent | posix_timer: Move copy_to_user(created_timer_id) down in timer_create() (diff) | |
| download | linux-af5ab277ded04bd9bc6b048c5a2f0e7d70ef0867.tar.xz linux-af5ab277ded04bd9bc6b048c5a2f0e7d70ef0867.zip | |
clockevents: Remove the per cpu tick skew
Historically, Linux has tried to make the regular timer tick on the
various CPUs not happen at the same time, to avoid contention on
xtime_lock.
Nowadays, with the tickless kernel, this contention no longer happens
since time keeping and updating are done differently. In addition,
this skew is actually hurting power consumption in a measurable way on
many-core systems.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
LKML-Reference: <20100727210210.58d3118c@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/acct.c')
0 files changed, 0 insertions, 0 deletions