Miroslav Lichvar 8af3c153ba ntp: Clamp PLL update interval ... Clamp update interval to reduce PLL gain with low sampling rate (e.g. intermittent network connection) to avoid instability. The clamp roughly corresponds to the loop time constant, it's 8 * poll interval for SHIFT_PLL 2 and 32 * poll interval for SHIFT_PLL 4. This gives good results without affecting the gain in normal conditions where ntpd skips only up to seven consecutive samples. Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Acked-by: john stultz <johnstul@us.ibm.com> LKML-Reference: <1283870626-9472-1-git-send-email-mlichvar@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2010-09-09 20:48:37 +02:00
..
clockevents.c
clocksource.c	clocksource: Add __clocksource_updatefreq_hz/khz methods	2010-07-27 12:40:55 +02:00
jiffies.c
Kconfig	time: Kill off CONFIG_GENERIC_TIME	2010-07-27 12:40:54 +02:00
Makefile
ntp.c	ntp: Clamp PLL update interval	2010-09-09 20:48:37 +02:00
tick-broadcast.c	fix comment/printk typos concerning "already"	2010-07-11 21:45:40 +02:00
tick-common.c
tick-internal.h
tick-oneshot.c
tick-sched.c	Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-08-06 13:12:36 -07:00
timecompare.c
timeconv.c
timekeeping.c	time: Workaround gcc loop optimization that causes 64bit div errors	2010-08-13 12:03:24 -07:00
timer_list.c
timer_stats.c