aepko/Ardupilot2
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

CPUInfo: added timing of micros16()

Browse Source
This commit is contained in:
Andrew Tridgell 2021-10-02 16:47:21 +10:00
parent 6953778b4c
commit 41534d816c
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
Tools/CPUInfo/CPUInfo.cpp
View File

@ -55,13 +55,14 @@ static void show_sizes(void)
#define FIFTYTIMES(x) do { TENTIMES(x); TENTIMES(x); TENTIMES(x); TENTIMES(x); TENTIMES(x); } while (0)
#define TIMEIT(name, op, count) do { \
uint32_t us_end, us_start; \
us_start = AP_HAL::micros(); \
uint16_t us_end, us_start; \
us_start = AP_HAL::micros16(); \
for (uint8_t i = 0; i < count; i++) { \
FIFTYTIMES(op); \
} \
us_end = AP_HAL::micros(); \
hal.console->printf("%-10s %7.4f usec/call\n", name, double(us_end - us_start) / double(count * 50.0)); \
us_end = AP_HAL::micros16(); \
uint16_t dt_us = us_end - us_start; \
hal.console->printf("%-10s %7.4f usec/call\n", name, double(dt_us) / double(count * 50.0)); \
hal.scheduler->delay(10); \
} while (0)
@ -101,7 +102,9 @@ static void show_timings(void)
TIMEIT("nop", asm volatile("nop"::), 255);
TIMEIT("micros()", AP_HAL::micros(), 200);
TIMEIT("micros16()", AP_HAL::micros16(), 200);
TIMEIT("millis()", AP_HAL::millis(), 200);
TIMEIT("millis16()", AP_HAL::millis16(), 200);
TIMEIT("micros64()", AP_HAL::micros64(), 200);
TIMEIT("fadd", v_out += v_f, 100);