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TIMER: Fixed calibration idle skip percent logic

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Also:
 - Added more statistics
 - Made sleep measurements more precise
 - Correct idle sleep decision logic without regard to host tick size
 - Fix calibration setup/teardown when host tick size is large (>10ms)
 - Generalized large host tick test capability (MS_MIN_GRANULARITY)
 - Fixed Windows sim_os_msec() to always use timeGetTime()
 - Fixed coschedule routines (that don't mentoin a tmr) to default to
    timer 0 and fallback to the internal timer otherwise.
 - Removed dependency on sizeof(tv_sec) in timespec structure for MinGW
This commit is contained in:
Mark Pizzolato
2016-12-05 15:32:29 -08:00
parent 7498f183d2
commit eb333a845e
2 changed files with 192 additions and 125 deletions
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2
sim_timer.h
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@@ -76,7 +76,7 @@ int clock_gettime(int clock_id, struct timespec *tp);
#define SIM_NTIMERS 8 /* # timers */
#define SIM_TMAX 500 /* max timer makeup */
#define SIM_INITIAL_IPS 50000 /* uncalibrated assumption */
#define SIM_INITIAL_IPS 500000 /* uncalibrated assumption */
/* about instructions per second */
#define SIM_IDLE_CAL 10 /* ms to calibrate */