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shell: show thread execution cycles

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This adds the bits to show the thread execution cycles
when doing "kernel threads" in shell.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2020-08-27 13:56:45 -07:00 • committed by Anas Nashif
commit 939d48cb02
1 changed files with 42 additions and 0 deletions
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42
subsys/shell/modules/kernel_service.c
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@ -14,6 +14,7 @@
#include <string.h>
#include <device.h>
#include <drivers/timer/system_timer.h>
#include <kernel.h>
static int cmd_kernel_version(const struct shell *shell,
size_t argc, char **argv)
@ -62,6 +63,11 @@ static void shell_tdata_dump(const struct k_thread *cthread, void *user_data)
const char *tname;
int ret;
#ifdef CONFIG_THREAD_RUNTIME_STATS
k_thread_runtime_stats_t rt_stats_thread;
k_thread_runtime_stats_t rt_stats_all;
#endif
tname = k_thread_name_get(thread);
shell_print(shell, "%s%p %-10s",
@ -74,6 +80,42 @@ static void shell_tdata_dump(const struct k_thread *cthread, void *user_data)
thread->base.timeout.dticks);
shell_print(shell, "\tstate: %s", k_thread_state_str(thread));
#ifdef CONFIG_THREAD_RUNTIME_STATS
ret = 0;
if (k_thread_runtime_stats_get(thread, &rt_stats_thread) != 0) {
ret++;
};
if (k_thread_runtime_stats_all_get(&rt_stats_all) != 0) {
ret++;
}
if (ret == 0) {
pcnt = (rt_stats_thread.execution_cycles * 100U) /
rt_stats_all.execution_cycles;
/*
* z_prf() does not support %llu by default unless
* CONFIG_MINIMAL_LIBC_LL_PRINTF=y. So do conditional
* compilation to avoid blindly enabling this kconfig
* so it won't increase RAM/ROM usage too much on 32-bit
* targets.
*/
#ifdef CONFIG_64BIT
shell_print(shell, "\tTotal execution cycles: %llu (%u %%)",
rt_stats_thread.execution_cycles,
pcnt);
#else
shell_print(shell, "\tTotal execution cycles: %lu (%u %%)",
(uint32_t)rt_stats_thread.execution_cycles,
pcnt);
#endif
} else {
shell_print(shell, "\tTotal execution cycles: ? (? %%)");
}
#endif
ret = k_thread_stack_space_get(thread, &unused);
if (ret) {
shell_print(shell,