Messages in this thread Patch in this message | | | Date | Wed, 15 Mar 2006 16:16:28 -0800 (PST) | From | Christoph Lameter <> | Subject | time_interpolator: add __read_mostly |
| |
The pointer to the current time interpolator and the current list of time interpolators are typically only changed during bootup. Adding __read_mostly takes them away from possibly hot cachelines.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Index: linux-2.6.16-rc6/kernel/timer.c =================================================================== --- linux-2.6.16-rc6.orig/kernel/timer.c 2006-03-11 14:12:55.000000000 -0800 +++ linux-2.6.16-rc6/kernel/timer.c 2006-03-15 16:13:05.000000000 -0800 @@ -1354,8 +1354,8 @@ void __init init_timers(void) #ifdef CONFIG_TIME_INTERPOLATION -struct time_interpolator *time_interpolator; -static struct time_interpolator *time_interpolator_list; +struct time_interpolator *time_interpolator __read_mostly; +static struct time_interpolator *time_interpolator_list __read_mostly; static DEFINE_SPINLOCK(time_interpolator_lock); static inline u64 time_interpolator_get_cycles(unsigned int src) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |