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author | Paul E. McKenney <paulmck@kernel.org> | 2022-12-14 00:57:28 +0300 |
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committer | Paul E. McKenney <paulmck@kernel.org> | 2023-01-04 07:43:45 +0300 |
commit | f092eb34b33043152bfb8a4ca01db9a06728261d (patch) | |
tree | 06e8f71d54ea7a9a91fb150b807795e330897bdb /tools/perf/scripts/python/exported-sql-viewer.py | |
parent | c37e85c135cead4256dc8860073c468d8925c3df (diff) | |
download | linux-f092eb34b33043152bfb8a4ca01db9a06728261d.tar.xz |
clocksource: Improve read-back-delay message
When cs_watchdog_read() is unable to get a qualifying clocksource read
within the limit set by max_cswd_read_retries, it prints a message
and marks the clocksource under test as unstable. But that message is
unclear to anyone unfamiliar with the code:
clocksource: timekeeping watchdog on CPU13: wd-tsc-wd read-back delay 1000614ns, attempt 3, marking unstable
Therefore, add some context so that the message appears as follows:
clocksource: timekeeping watchdog on CPU13: wd-tsc-wd excessive read-back delay of 1000614ns vs. limit of 125000ns, wd-wd read-back delay only 27ns, attempt 3, marking tsc unstable
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: John Stultz <jstultz@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Feng Tang <feng.tang@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions