Mathieu Desnoyers dacb16b1a0 [PATCH] i386 and x86_64 TSC set_cyc2ns_scale imprecision ... I just found out that some precision is unnecessarily lost in the arch/i386/kernel/timers/timer_tsc.c:set_cyc2ns_scale function. It uses a cpu_mhz parameter when it could use a cpu_khz. In the specific case of an Intel P4 running at 3001.171 Mhz, the truncation to 3001 Mhz leads to an imprecision of 19 microseconds per second : this is very sad for a timer with nearly nanosecond accuracy. Fix the x86_64 architecture too. Cc: george anzinger <george@mvista.com> Cc: john stultz <johnstul@us.ibm.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-10-30 17:37:11 -08:00
..
common.c
Makefile
timer_cyclone.c
timer_hpet.c	[PATCH] i386 and x86_64 TSC set_cyc2ns_scale imprecision	2005-10-30 17:37:11 -08:00
timer_none.c
timer_pit.c	[PATCH] useless includes of linux/irq.h in arch/i386	2005-09-26 18:29:50 -07:00
timer_pm.c	[PATCH] add suspend/resume for timer	2005-09-05 00:06:18 -07:00
timer_tsc.c	[PATCH] i386 and x86_64 TSC set_cyc2ns_scale imprecision	2005-10-30 17:37:11 -08:00
timer.c