From 8eb142ddd8bc3fe9428cd46b9fd98f32b2bc8c67 Mon Sep 17 00:00:00 2001 From: Vincent Fu Date: Thu, 18 Oct 2018 16:42:54 -0400 Subject: [PATCH] fio: reset more counters when ramp time has elapsed Currently, fio --name=test --ramp_time=2 --time_based=1 --runtime=2s --size=1M will produce an output line like IO depths : 1=184.7%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% 184.7% appears because the denominator used in the IO depth calculation is reset at the conclusion of ramp_time but the numerator is not. Latency and other IO depth statistics also include data from IOs completed during ramp time. This patch resets these counters when ramp time is over. Tested-by: Sebastien Boisvert Signed-off-by: Jens Axboe --- time.c | 1 + 1 file changed, 1 insertion(+) diff --git a/time.c b/time.c index c8876829..19999699 100644 --- a/time.c +++ b/time.c @@ -118,6 +118,7 @@ bool ramp_time_over(struct thread_data *td) if (utime_since_now(&td->epoch) >= td->o.ramp_time) { td->ramp_time_over = true; reset_all_stats(td); + reset_io_stats(td); td_set_runstate(td, TD_RAMP); /* -- 2.25.1