On Tue, Jul 23 2013, Neto, Antonio Jose Rodrigues wrote: > Hi All > > This is neto from Brazil > > How are you? > > I need to model the following workload: > > Sequential Read % 35.0 > Sequential Write % 5.0 > Random Read % 50.0 > Random Write % 10.0 > Random Read Working Set(GB) 1000.0 > Random Write Working Set(GB) 1000.0 > Sequential Read Size(KB) 64KB > Sequential Write Size(KB) 64KB > Random Read Size(KB) 8KB > Random Write Size(KB) 8KB So that's 85% reads and 15% writes, first part: rw=randrw rwmixread=85 and then you have 50/85 reads random and 35/85 reads sequential. That's roughly 59% reads random. On the writes, you have 10/15 random and 5/15 sequential. That's roughly 67% writes random: percentage_random=59,67 The latter I just added support for, before it only support a single setting for reads and writes. Fio does not support splitting block sizes on a random/sequential basis. You will have to improvise there. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
