From 291c109084ad3e247ff13728f18cc7290d5220ab Mon Sep 17 00:00:00 2001 From: Kent Overstreet Date: Thu, 1 Feb 2024 21:01:02 -0500 Subject: time_stats: Check for last_event == 0 when updating freq stats Signed-off-by: Kent Overstreet --- lib/time_stats.c | 5 +++-- 1 file 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, -- cgit v1.2.3