Hi Jens, Playing with the new feature you have added, bs_is_seq_rand along with rwmixread and percentage_random has allowed me to specify sequential writes and random reads in one job, but I have noticed that the random reads sets a new offset for the sequential part of the workload. For example; Seq Write LBA 1 Seq Write LBA 2 Seq Write LBA 3 Rnd Read LBA 10 Seq Write LBA 11 Seq Write LBA 12 etc. Would it be possible to get the sequential workload to continue from where it left off? So for example in the above sequence it would go: Seq Write LBA 1 Seq Write LBA 2 Seq Write LBA 3 Rnd Read LBA 10 Seq Write LBA 4 Seq Write LBA 5 etc. Jobfile below for those interested; ; Large Sequential Writes (1MB) with Small Random Reads (4KB) [global] direct=1 ioengine=libaio filename=/dev/sdb runtime=30s ramp_time=10s bs_is_seq_rand=1 [1MB Writes, 4K Reads] rw=randrw bs=1M,4K iodepth=4 rwmixread=1 percentage_random=100,0 Thanks, Gavin -- ------------------------------ For additional information including the registered office and the treatment of Xyratex confidential information please visit www.xyratex.com ------------------------------ -- 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
