Messages in this thread Patch in this message | | | Date | Sun, 29 Jul 2007 19:45:37 -0700 | From | Daniel Walker <> | Subject | [PATCH -rt 3/9] Fix jiffies wrap issue in update_times |
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In prior -rt verisons the last_tick value was called wall_jiffies and was initialized in this same way as below. If this value isn't initialized the calc_load function gets skewed for several minutes right after boot up. Skewed meaning always zero.
Signed-off-by: Daniel Walker <dwalker@mvista.com>
--- kernel/timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6.22/kernel/timer.c =================================================================== --- linux-2.6.22.orig/kernel/timer.c +++ linux-2.6.22/kernel/timer.c @@ -987,7 +987,7 @@ void run_local_timers(void) */ static inline void update_times(void) { - static unsigned long last_tick; + static unsigned long last_tick = INITIAL_JIFFIES; unsigned long ticks, flags; /* -- - 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/
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