Hi Shivam, On Tue, 12 Nov 2019 at 00:37, Shivam Dhir <dhirs1@xxxxxxx> wrote: > > Hi > > I was trying to draw some performance graphs executing a sequence like > > 1 Sequential write > 3 Random writes > 25% trim command > 3 Sequential writes > > I observed a discrepancy in the bandwidth logging for last two > sequential writes. > I notice that the last two sequential writes differ by 300 MB/s but > the last individual reading of these logs indicate that the slower > sequential write actually took slightly less time to complete. > Capacity is 4TB. > > Can you provide some inputs if this is a known issue? > I am using fio-2.2.10. This might have been fixed. Does this still happen when you use a recent fio (e.g. 3.16 - see https://github.com/axboe/fio/releases for what we're up to)? -- Sitsofe | http://sucs.org/~sits/
