Add basic profiler. (#20238)
parent
89713112cd
commit
b1b8cd1bf0
|
@ -0,0 +1,69 @@
|
|||
// Copyright 2023 Nick Brassel (@tzarc)
|
||||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
#pragma once
|
||||
|
||||
/*
|
||||
This API allows for basic profiling information to be printed out over console.
|
||||
|
||||
Usage example:
|
||||
|
||||
#include "basic_profiling.h"
|
||||
|
||||
// Original code:
|
||||
matrix_task();
|
||||
|
||||
// Delete the original, replace with the following (variant 1, automatic naming):
|
||||
PROFILE_CALL(1000, matrix_task());
|
||||
|
||||
// Delete the original, replace with the following (variant 2, explicit naming):
|
||||
PROFILE_CALL_NAMED(1000, "matrix_task", {
|
||||
matrix_task();
|
||||
});
|
||||
*/
|
||||
|
||||
#if defined(PROTOCOL_LUFA) || defined(PROTOCOL_VUSB)
|
||||
# define TIMESTAMP_GETTER TCNT0
|
||||
#elif defined(PROTOCOL_CHIBIOS)
|
||||
# define TIMESTAMP_GETTER chSysGetRealtimeCounterX()
|
||||
#elif defined(PROTOCOL_ARM_ATSAM)
|
||||
# error arm_atsam not currently supported
|
||||
#else
|
||||
# error Unknown protocol in use
|
||||
#endif
|
||||
|
||||
#ifndef CONSOLE_ENABLE
|
||||
// Can't do anything if we don't have console output enabled.
|
||||
# define PROFILE_CALL_NAMED(count, name, call) \
|
||||
do { \
|
||||
} while (0)
|
||||
#else
|
||||
# define PROFILE_CALL_NAMED(count, name, call) \
|
||||
do { \
|
||||
static uint64_t inner_sum = 0; \
|
||||
static uint64_t outer_sum = 0; \
|
||||
uint32_t start_ts; \
|
||||
static uint32_t end_ts; \
|
||||
static uint32_t write_location = 0; \
|
||||
start_ts = TIMESTAMP_GETTER; \
|
||||
if (write_location > 0) { \
|
||||
outer_sum += start_ts - end_ts; \
|
||||
} \
|
||||
do { \
|
||||
call; \
|
||||
} while (0); \
|
||||
end_ts = TIMESTAMP_GETTER; \
|
||||
inner_sum += end_ts - start_ts; \
|
||||
++write_location; \
|
||||
if (write_location >= ((uint32_t)count)) { \
|
||||
uint32_t inner_avg = inner_sum / (((uint32_t)count) - 1); \
|
||||
uint32_t outer_avg = outer_sum / (((uint32_t)count) - 1); \
|
||||
dprintf("%s -- Percentage time spent: %d%%\n", (name), (int)(inner_avg * 100 / (inner_avg + outer_avg))); \
|
||||
inner_sum = 0; \
|
||||
outer_sum = 0; \
|
||||
write_location = 0; \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#endif // CONSOLE_ENABLE
|
||||
|
||||
#define PROFILE_CALL(count, call) PROFILE_CALL_NAMED(count, #call, call)
|
Loading…
Reference in New Issue