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default timer to run slower and increase as needed, Run the timer at 20ms by default and drop down as needed unless you set 1m-timer=true which was previous default

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This commit is contained in:
Anthony Minessale 2011-04-29 11:09:14 -05:00
parent 00b53a91ea
commit 16e3d1fa25
4 changed files with 41 additions and 22 deletions
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3
conf/autoload_configs/switch.conf.xml
View File

@ -24,6 +24,9 @@
<!--Colorize the Console -->
<param name="colorize-console" value="true"/>
<!-- Run the timer at 20ms by default and drop down as needed unless you set 1m-timer=true which was previous default -->
<!-- <param name="1ms-timer" value="true"/> -->
<!--
Set the Switch Name for HA environments.
When setting the switch name, it will override the system hostname for all DB and CURL requests

1
src/include/private/switch_core_pvt.h
View File

@ -240,6 +240,7 @@ struct switch_runtime {
uint32_t debug_level;
uint32_t runlevel;
uint32_t tipping_point;
uint32_t microseconds_per_tick;
int32_t timer_affinity;
switch_profile_timer_t *profile_timer;
double profile_time;

5
src/switch_core.c
View File

@ -1419,7 +1419,8 @@ SWITCH_DECLARE(switch_status_t) switch_core_init(switch_core_flag_t flags, switc
runtime.tipping_point = 0;
runtime.timer_affinity = -1;
runtime.microseconds_per_tick = 20000;
switch_load_core_config("switch.conf");
switch_core_state_machine_init(runtime.memory_pool);
@ -1689,6 +1690,8 @@ static void switch_load_core_config(const char *file)
switch_core_min_idle_cpu(atof(val));
} else if (!strcasecmp(var, "tipping-point") && !zstr(val)) {
runtime.tipping_point = atoi(val);
} else if (!strcasecmp(var, "1ms-timer") && switch_true(val)) {
runtime.microseconds_per_tick = 1000;
} else if (!strcasecmp(var, "timer-affinity") && !zstr(val)) {
if (!strcasecmp(val, "disabled")) {
runtime.timer_affinity = -1;

54
src/switch_time.c
View File

@ -88,11 +88,6 @@ static DWORD win32_last_get_time_tick = 0;
CRITICAL_SECTION timer_section;
#endif
static int STEP_MS = 1;
static int STEP_MIC = 1000;
static uint32_t TICK_PER_SEC = 1000;
static int MS_PER_TICK = 10;
static switch_memory_pool_t *module_pool = NULL;
static struct {
@ -219,7 +214,7 @@ SWITCH_DECLARE(void) switch_time_calibrate_clock(void)
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING,
"Timer resolution of %ld microseconds detected!\n"
"Do you have your kernel timer frequency set to lower than 1,000Hz? "
"You may experience audio problems. Step MS %d\n", ts.tv_nsec / 1000, STEP_MS);
"You may experience audio problems. Step MS %d\n", ts.tv_nsec / 1000, runtime.microseconds_per_tick / 1000);
do_sleep(5000000);
switch_time_set_cond_yield(SWITCH_TRUE);
return;
@ -509,9 +504,14 @@ static switch_status_t timer_init(switch_timer_t *timer)
private_info->roll = TIMER_MATRIX[timer->interval].roll;
private_info->ready = 1;
if (timer->interval > 0 && (timer->interval < MS_PER_TICK || (timer->interval % 10) != 0)) {
if ((timer->interval == 10 || timer->interval == 30) && runtime.microseconds_per_tick > 10000) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Increasing global timer resolution to 10ms to handle interval %d\n", timer->interval);
runtime.microseconds_per_tick = 10000;
}
if (timer->interval > 0 && (timer->interval < (runtime.microseconds_per_tick / 1000) || (timer->interval % 10) != 0)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Increasing global timer resolution to 1ms to handle interval %d\n", timer->interval);
MS_PER_TICK = 1;
runtime.microseconds_per_tick = 1000;
switch_time_sync();
}
@ -678,7 +678,7 @@ static switch_status_t timer_destroy(switch_timer_t *timer)
SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
{
switch_time_t too_late = STEP_MIC * 1000;
switch_time_t too_late = runtime.microseconds_per_tick * 1000;
uint32_t current_ms = 0;
uint32_t x, tick = 0;
switch_time_t ts = 0, last = 0;
@ -687,6 +687,8 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
int tfd = -1;
#ifdef HAVE_TIMERFD_CREATE
int last_MICROSECONDS_PER_TICK = runtime.microseconds_per_tick;
struct itimerspec spec = { { 0 } };
if (MONO && TFD) {
@ -694,7 +696,7 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
if (tfd > -1) {
spec.it_interval.tv_sec = 0;
spec.it_interval.tv_nsec = 1000000;
spec.it_interval.tv_nsec = runtime.microseconds_per_tick * 1000;
spec.it_value.tv_sec = spec.it_interval.tv_sec;
spec.it_value.tv_nsec = spec.it_interval.tv_nsec;
@ -740,7 +742,7 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
runtime.initiated = runtime.reference;
break;
}
do_sleep(STEP_MIC);
do_sleep(runtime.microseconds_per_tick);
last = ts;
}
}
@ -763,7 +765,17 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
globals.RUNNING = 1;
while (globals.RUNNING == 1) {
runtime.reference += STEP_MIC;
#ifdef HAVE_TIMERFD_CREATE
if (last_MICROSECONDS_PER_TICK != runtime.microseconds_per_tick) {
spec.it_interval.tv_nsec = runtime.microseconds_per_tick * 1000;
timerfd_settime(tfd, TFD_TIMER_ABSTIME, &spec, NULL);
}
last_runtime.microseconds_per_tick = runtime.microseconds_per_tick;
#endif
runtime.reference += runtime.microseconds_per_tick;
while (((ts = time_now(runtime.offset)) + 100) < runtime.reference) {
if (ts < last) {
@ -796,7 +808,7 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
r = read(tfd, &exp, sizeof(exp));
r++;
} else {
do_sleep(1000);
do_sleep(runtime.microseconds_per_tick);
}
}
@ -808,7 +820,7 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Virtual Migration Detected! Syncing Clock\n");
switch_time_sync();
} else {
switch_time_t diff = ts - runtime.reference - STEP_MIC;
switch_time_t diff = ts - runtime.reference - runtime.microseconds_per_tick;
#ifndef WIN32
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Forward Clock Skew Detected!\n");
#endif
@ -829,10 +841,10 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
}
runtime.timestamp = ts;
current_ms += STEP_MS;
tick += STEP_MS;
current_ms += (runtime.microseconds_per_tick / 1000);
tick += (runtime.microseconds_per_tick / 1000);
if (tick >= TICK_PER_SEC) {
if (tick >= (1000000 / runtime.microseconds_per_tick)) {
if (++profile_tick == 1) {
switch_get_system_idle_time(runtime.profile_timer, &runtime.profile_time);
profile_tick = 0;
@ -860,8 +872,8 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
#endif
if (MATRIX && (current_ms % MS_PER_TICK) == 0) {
for (x = MS_PER_TICK; x <= MAX_ELEMENTS; x += MS_PER_TICK) {
if (MATRIX && (current_ms % (runtime.microseconds_per_tick / 1000)) == 0) {
for (x = (runtime.microseconds_per_tick / 1000); x <= MAX_ELEMENTS; x += (runtime.microseconds_per_tick / 1000)) {
if ((current_ms % x) == 0) {
if (TIMER_MATRIX[x].count) {
TIMER_MATRIX[x].tick++;
@ -887,8 +899,8 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
}
globals.use_cond_yield = 0;
for (x = MS_PER_TICK; x <= MAX_ELEMENTS; x += MS_PER_TICK) {
for (x = (runtime.microseconds_per_tick / 1000); x <= MAX_ELEMENTS; x += (runtime.microseconds_per_tick / 1000)) {
if (TIMER_MATRIX[x].mutex && switch_mutex_trylock(TIMER_MATRIX[x].mutex) == SWITCH_STATUS_SUCCESS) {
switch_thread_cond_broadcast(TIMER_MATRIX[x].cond);
switch_mutex_unlock(TIMER_MATRIX[x].mutex);