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
jiffies.c
Kconfig
Makefile
ntp.c	ntp: Clamp PLL update interval	2010-09-09 20:48:37 +02:00
tick-broadcast.c
tick-common.c
tick-internal.h
tick-oneshot.c
tick-sched.c
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