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kernel/sched: Separate idle from app thread stats in THREAD_USAGE

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It turns out that we have a sample (though not a test) that really
does want to use "k_thread_runtime_stats_all_get()" to measure system
uptime.

Instead of breaking this needlessly, separate the accounting for idle
and non-idle threads.  The legacy API can report their sum, and the
more useful value is available via the kernel struct for future
analysis.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This commit is contained in:
Andy Ross 2021-10-01 14:47:41 -07:00 • committed by Anas Nashif
commit 410f911018
3 changed files with 9 additions and 3 deletions
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include/kernel_structs.h
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@ -175,6 +175,7 @@ struct z_kernel {
#ifdef CONFIG_SCHED_THREAD_USAGE_ALL
uint64_t all_thread_usage;
uint64_t idle_thread_usage;
#endif
};