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estimate the cpu load including the task in the event loop

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Gautier Hattenberger
2010-08-23 14:29:14 +00:00
parent 3742284128
commit b09c0f5c32
1 changed files with 8 additions and 4 deletions
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sw/airborne/modules/core/sys_mon.c
+8 -4
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@@ -22,7 +22,7 @@
*
*/
#include "sys_mon.h"
#include "core/sys_mon.h"
#include "sys_time.h"
#ifdef USE_USB_SERIAL
@@ -37,7 +37,7 @@ uint16_t event_time, event_number;
/* Local vars */
uint16_t n_periodic, n_event;
uint32_t time_periodic, time_event;
uint32_t sum_time_periodic, sum_cycle_periodic, sum_time_event, sum_n_event;
uint32_t sum_time_periodic, sum_cycle_periodic, sum_time_event, min_time_event, sum_n_event;
void init_sysmon(void) {
cpu_load = 0;
@@ -53,6 +53,7 @@ void init_sysmon(void) {
sum_time_periodic = 0;
sum_cycle_periodic = 0;
sum_time_event = 0;
min_time_event = ~0;
sum_n_event = 0;
}
@@ -86,7 +87,8 @@ void periodic_sysmon(void) {
/** Estimate periodic task cycle time */
SysTimeTimerStop(time_periodic);
periodic_time = USEC_OF_SYS_TICS(time_periodic);
periodic_cycle = periodic_time - sum_time_event /* - sum_time_event/n_event */;
/* only periodic cycle : periodic_cycle = periodic_time - sum_time_event; */
periodic_cycle = periodic_time - n_event * min_time_event;
if (periodic_cycle < periodic_cycle_min) periodic_cycle_min = periodic_cycle;
if (periodic_cycle > periodic_cycle_max) periodic_cycle_max = periodic_cycle;
sum_time_periodic += periodic_time;
@@ -101,7 +103,9 @@ void periodic_sysmon(void) {
void event_sysmon(void) {
/** Store event calls total time and number of calls between two periodic calls */
if (n_event > 0) {
sum_time_event += USEC_OF_SYS_TICS(SysTimeTimer(time_event));
uint32_t t = USEC_OF_SYS_TICS(SysTimeTimer(time_event));
if (t < min_time_event) min_time_event = t;
sum_time_event += t;
}
SysTimeTimerStart(time_event);
n_event++;