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switch to conditional broadcast mode on slow kernels

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16308 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale committed 2010-01-14 16:02:46 +00:00
1 parent 0d2d07d066
commit abd116829e
6 files changed
+37 -34
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src/switch_time.c
+24 -32
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@@ -177,7 +177,7 @@ static switch_interval_time_t average_time(switch_interval_time_t t, int reps)
}
#define calc_step() if (step > 11) step -= 10; else if (step > 1) step--
static void calibrate_clock(void)
SWITCH_DECLARE(void) switch_time_calibrate_clock(void)
{
int x;
switch_interval_time_t avg, val = 1000, want = 1000;
@@ -188,15 +188,18 @@ static void calibrate_clock(void)
clock_getres(CLOCK_MONOTONIC, &ts);
if (ts.tv_nsec / 1000 > 1500) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING,
"Timer resolution of %ld microseconds detected!\n"
"Do you have your kernel timer set to higher than 1khz? You may experience audio problems.\n", ts.tv_nsec / 1000);
sleep(5);
"Timer resolution of %ld microseconds detected!\n"
"Do you have your kernel timer set to higher than 1khz? You may experience audio problems.\n", ts.tv_nsec / 1000);
do_sleep(5000000);
switch_time_set_cond_yield(SWITCH_TRUE);
return;
}
#endif
OFFSET = 0;
for (x = 0; x < 500; x++) {
avg = average_time(val, 100);
avg = average_time(val, 50);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CONSOLE, "Test: %ld Average: %ld Step: %d\n", (long)val, (long)avg, step);
diff = abs((int)(want - avg));
@@ -204,11 +207,8 @@ static void calibrate_clock(void)
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING,
"Abnormally large timer gap %d detected!\n"
"Do you have your kernel timer set to higher than 1khz? You may experience audio problems.\n", diff);
#ifdef WIN32
Sleep(5*1000);
#else
sleep(5);
#endif
do_sleep(5000000);
switch_time_set_cond_yield(SWITCH_TRUE);
return;
}
@@ -220,12 +220,12 @@ static void calibrate_clock(void)
}
} else if (avg > want) {
if (under) {calc_step();}
under = 0;
under = good = 0;
val -= step;
over++;
} else if (avg < want) {
if (over) {calc_step();}
over = 0;
over = good = 0;
val += step;
under++;
}
@@ -261,15 +261,6 @@ SWITCH_DECLARE(void) switch_time_set_monotonic(switch_bool_t enable)
SWITCH_DECLARE(void) switch_time_set_matrix(switch_bool_t enable)
{
MATRIX = enable ? 1 : 0;
if (MATRIX) {
STEP_MS = 1;
STEP_MIC = 1000;
TICK_PER_SEC = 10000;
} else {
STEP_MS = 10;
STEP_MIC = 10000;
TICK_PER_SEC = 1000;
}
switch_time_sync();
}
@@ -286,6 +277,7 @@ SWITCH_DECLARE(void) switch_time_set_cond_yield(switch_bool_t enable)
if (COND) {
MATRIX = 1;
}
switch_time_sync();
}
static switch_time_t time_now(int64_t offset)
@@ -498,15 +490,15 @@ static switch_status_t timer_next(switch_timer_t *timer)
while (globals.RUNNING == 1 && private_info->ready && TIMER_MATRIX[timer->interval].tick < private_info->reference) {
check_roll();
if (globals.use_cond_yield == 1) {
switch_mutex_lock(TIMER_MATRIX[cond_index].mutex);
if (TIMER_MATRIX[timer->interval].tick < private_info->reference) {
switch_thread_cond_wait(TIMER_MATRIX[cond_index].cond, TIMER_MATRIX[cond_index].mutex);
}
switch_mutex_unlock(TIMER_MATRIX[cond_index].mutex);
if (session_manager.session_count > runtime.tipping_point) {
os_yield();
} else {
if (session_manager.session_count > 1000) {
os_yield();
if (globals.use_cond_yield == 1) {
switch_mutex_lock(TIMER_MATRIX[cond_index].mutex);
if (TIMER_MATRIX[timer->interval].tick < private_info->reference) {
switch_thread_cond_wait(TIMER_MATRIX[cond_index].cond, TIMER_MATRIX[cond_index].mutex);
}
switch_mutex_unlock(TIMER_MATRIX[cond_index].mutex);
} else {
do_sleep(1000);
}
@@ -640,10 +632,10 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
rev_errs = 0;
}
if (session_manager.session_count > 1000) {
if (session_manager.session_count > runtime.tipping_point) {
os_yield();
} else {
do_sleep(STEP_MIC);
do_sleep(1000);
}
last = ts;
@@ -952,7 +944,7 @@ SWITCH_MODULE_LOAD_FUNCTION(softtimer_load)
timer_interface->timer_destroy = timer_destroy;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CONSOLE, "Calibrating timer, please wait...\n");
calibrate_clock();
switch_time_calibrate_clock();
/* indicate that the module should continue to be loaded */
return SWITCH_STATUS_SUCCESS;