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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-02-01 21:01:02 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-02-01 21:01:24 -0500 |
| commit | 291c109084ad3e247ff13728f18cc7290d5220ab (patch) | |
| tree | dad8c3ba8dea340593f5cbd81c9d778a380f9cda | |
| parent | c6b1fccba07757a4dc458c0016e137d9a3d2b983 (diff) | |
time_stats: Check for last_event == 0 when updating freq stats
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
| -rw-r--r-- | lib/time_stats.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/time_stats.c b/lib/time_stats.c index 1426d76e7756..4c5310dc6ca8 100644 --- a/lib/time_stats.c +++ b/lib/time_stats.c @@ -79,14 +79,15 @@ static inline void time_stats_update_one(struct time_stats *stats, quantiles_update(&stats->quantiles, duration); } - if (time_after64(end, stats->last_event)) { + if (stats->last_event && time_after64(end, stats->last_event)) { freq = end - stats->last_event; mean_and_variance_update(&stats->freq_stats, freq); mean_and_variance_weighted_update(&stats->freq_stats_weighted, freq); stats->max_freq = max(stats->max_freq, freq); stats->min_freq = min(stats->min_freq, freq); - stats->last_event = end; } + + stats->last_event = end; } void __time_stats_clear_buffer(struct time_stats *stats, |