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| author | Nick Brassel <nick@tzarc.org> | 2023-04-06 08:10:40 +1000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-04-06 08:10:40 +1000 |
| commit | b1b8cd1bf0c3bed0653b64a9be13ddb1dc269272 (patch) | |
| tree | ce728f92de87b7a970621d49f544241936a6c36b /quantum | |
| parent | 89713112cd5d1e1f138a41a67ba687ea24d4a146 (diff) | |
Add basic profiler. (#20238)
Diffstat (limited to 'quantum')
| -rw-r--r-- | quantum/basic_profiling.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/quantum/basic_profiling.h b/quantum/basic_profiling.h new file mode 100644 index 0000000000..d371acd6f0 --- /dev/null +++ b/quantum/basic_profiling.h @@ -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) |