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Remove conditionally compiled time counter statistics; tools like

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DTrace, kernel profiling, etc, can provide this information without
the overhead.

MFC after:	3 days
Suggested by:	bde
This commit is contained in:
rwatson 2009-04-11 22:01:40 +00:00
parent 8a26716497
commit 90c1837110
1 changed files with 0 additions and 31 deletions
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31
sys/kern/kern_tc.c
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@ -103,24 +103,6 @@ static int timestepwarnings;
SYSCTL_INT(_kern_timecounter, OID_AUTO, stepwarnings, CTLFLAG_RW,
&timestepwarnings, 0, "");
#ifdef TC_COUNTERS
#define TC_STATS(foo) \
static u_int foo; \
SYSCTL_UINT(_kern_timecounter, OID_AUTO, foo, CTLFLAG_RD, &foo, 0, "");\
struct __hack
TC_STATS(nbinuptime); TC_STATS(nnanouptime); TC_STATS(nmicrouptime);
TC_STATS(nbintime); TC_STATS(nnanotime); TC_STATS(nmicrotime);
TC_STATS(ngetbinuptime); TC_STATS(ngetnanouptime); TC_STATS(ngetmicrouptime);
TC_STATS(ngetbintime); TC_STATS(ngetnanotime); TC_STATS(ngetmicrotime);
TC_STATS(nsetclock);
#define TC_COUNT(var) var++
#undef TC_STATS
#else
#define TC_COUNT(var) /* nothing */
#endif /* TC_COUNTERS */
static void tc_windup(void);
static void cpu_tick_calibrate(int);
@ -185,7 +167,6 @@ binuptime(struct bintime *bt)
struct timehands *th;
u_int gen;
TC_COUNT(nbinuptime);
do {
th = timehands;
gen = th->th_generation;
@ -199,7 +180,6 @@ nanouptime(struct timespec *tsp)
{
struct bintime bt;
TC_COUNT(nnanouptime);
binuptime(&bt);
bintime2timespec(&bt, tsp);
}
@ -209,7 +189,6 @@ microuptime(struct timeval *tvp)
{
struct bintime bt;
TC_COUNT(nmicrouptime);
binuptime(&bt);
bintime2timeval(&bt, tvp);
}
@ -218,7 +197,6 @@ void
bintime(struct bintime *bt)
{
TC_COUNT(nbintime);
binuptime(bt);
bintime_add(bt, &boottimebin);
}
@ -228,7 +206,6 @@ nanotime(struct timespec *tsp)
{
struct bintime bt;
TC_COUNT(nnanotime);
bintime(&bt);
bintime2timespec(&bt, tsp);
}
@ -238,7 +215,6 @@ microtime(struct timeval *tvp)
{
struct bintime bt;
TC_COUNT(nmicrotime);
bintime(&bt);
bintime2timeval(&bt, tvp);
}
@ -249,7 +225,6 @@ getbinuptime(struct bintime *bt)
struct timehands *th;
u_int gen;
TC_COUNT(ngetbinuptime);
do {
th = timehands;
gen = th->th_generation;
@ -263,7 +238,6 @@ getnanouptime(struct timespec *tsp)
struct timehands *th;
u_int gen;
TC_COUNT(ngetnanouptime);
do {
th = timehands;
gen = th->th_generation;
@ -277,7 +251,6 @@ getmicrouptime(struct timeval *tvp)
struct timehands *th;
u_int gen;
TC_COUNT(ngetmicrouptime);
do {
th = timehands;
gen = th->th_generation;
@ -291,7 +264,6 @@ getbintime(struct bintime *bt)
struct timehands *th;
u_int gen;
TC_COUNT(ngetbintime);
do {
th = timehands;
gen = th->th_generation;
@ -306,7 +278,6 @@ getnanotime(struct timespec *tsp)
struct timehands *th;
u_int gen;
TC_COUNT(ngetnanotime);
do {
th = timehands;
gen = th->th_generation;
@ -320,7 +291,6 @@ getmicrotime(struct timeval *tvp)
struct timehands *th;
u_int gen;
TC_COUNT(ngetmicrotime);
do {
th = timehands;
gen = th->th_generation;
@ -411,7 +381,6 @@ tc_setclock(struct timespec *ts)
struct bintime bt, bt2;
cpu_tick_calibrate(1);
TC_COUNT(nsetclock);
nanotime(&tbef);
timespec2bintime(ts, &bt);
binuptime(&bt2);