CPU time accounting speedup (step 2)

Keep accounting time (in per-cpu) cputicks and the statistics counts
in the thread and summarize into struct proc when at context switch.

Don't reach across CPUs in calcru().

Add code to calibrate the top speed of cpu_tickrate() for variable
cpu_tick hardware (like TSC on power managed machines).

Don't enforce monotonicity (at least for now) in calcru.  While the
calibrated cpu_tickrate ramps up it may not be true.

Use 27MHz counter on i386/Geode.

Use TSC on amd64 & i386 if present.

Use tick counter on sparc64

1 files changed, 1 insertions, 9 deletions

diff --git a/sys/sparc64/sparc64/tick.c b/sys/sparc64/sparc64/tick.c
index 6f9f1a8..61f3bae 100644
--- a/sys/sparc64/sparc64/tick.c
+++ b/sys/sparc64/sparc64/tick.c
@@ -72,13 +72,6 @@ tick_cputicks(void)
 	return (rd(tick));
 }
 
-static uint64_t
-tick_cputickrate(void)
-{
-
-	return (tick_freq);
-}
-
 void
 cpu_initclocks(void)
 {
@@ -171,8 +164,7 @@ tick_init(u_long clock)
 	 */
 	tick_stop();
 
-	cpu_ticks = tick_cputicks;
-	cpu_tickrate = tick_cputickrate;
+	set_cputicker(tick_cputicks, tick_freq, 0);
 }
 
 void