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subsys/profiling: add some util cmds

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Added:
- `clear` to discard the buffer without printing
- `info` to print info about the buffer and if the
  profiler is running

Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
This commit is contained in:
Yong Cong Sin 2024-08-16 12:41:21 +08:00 • committed by Henrik Brix Andersen
commit d68642c732
1 changed files with 31 additions and 2 deletions
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33
subsys/profiling/perf/perf.c
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@ -101,6 +101,34 @@ int cmd_perf_record(const struct shell *sh, size_t argc, char **argv)
return 0;
}
static int cmd_perf_clear(const struct shell *sh, size_t argc, char **argv)
{
if (sh != NULL) {
if (k_work_delayable_is_pending(&perf_data.dwork)) {
shell_warn(sh, "Perf is running");
return -EINPROGRESS;
}
shell_print(sh, "Perf buffer cleared");
}
perf_data.idx = 0;
perf_data.buf_full = false;
return 0;
}
static int cmd_perf_info(const struct shell *sh, size_t argc, char **argv)
{
if (k_work_delayable_is_pending(&perf_data.dwork)) {
shell_print(sh, "Perf is running");
}
shell_print(sh, "Perf buf: %zu/%d %s", perf_data.idx, CONFIG_PROFILING_PERF_BUFFER_SIZE,
perf_data.buf_full ? "(full)" : "");
return 0;
}
int cmd_perf_print(const struct shell *sh, size_t argc, char **argv)
{
if (k_work_delayable_is_pending(&perf_data.dwork)) {
@ -113,8 +141,7 @@ int cmd_perf_print(const struct shell *sh, size_t argc, char **argv)
shell_print(sh, "%016lx", perf_data.buf[i]);
}
perf_data.idx = 0;
perf_data.buf_full = false;
cmd_perf_clear(NULL, 0, NULL);
return 0;
}
@ -126,6 +153,8 @@ int cmd_perf_print(const struct shell *sh, size_t argc, char **argv)
SHELL_STATIC_SUBCMD_SET_CREATE(m_sub_perf,
SHELL_CMD_ARG(record, NULL, CMD_HELP_RECORD, cmd_perf_record, 3, 0),
SHELL_CMD_ARG(printbuf, NULL, "Print the perf buffer", cmd_perf_print, 0, 0),
SHELL_CMD_ARG(clear, NULL, "Clear the perf buffer", cmd_perf_clear, 0, 0),
SHELL_CMD_ARG(info, NULL, "Print the perf info", cmd_perf_info, 0, 0),
SHELL_SUBCMD_SET_END
);
SHELL_CMD_ARG_REGISTER(perf, &m_sub_perf, "Lightweight profiler", NULL, 0, 0);