Hi, My FIO job File looks like this [ssd] rw=randread bs=4k iodepth=8 numjobs=8 group_reporting=1 ioengine=sync filename=/dev/sdb runtime=120 I ran this job and while this job was running I ran a Blktrace and parsed it to a .bin file. The actual FIO run showed the results of all 8 jobs as below, ssd: (g=0): rw=randread, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=8 fio-2.1.4 Starting 8 processes ssd: (groupid=0, jobs=8): err= 0: pid=9198: Tue Dec 3 18:40:41 2013 read : io=2545.1MB, bw=21725KB/s, iops=5431, runt=120002msec .................... However when I replay the .bin trace using read_iolog, the result shows only 1 job's results as below, Replay: (g=0): rw=read, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=1 fio-2.1.4 Starting 1 process Replay: (groupid=0, jobs=1): err= 0: pid=12065: Tue Dec 3 18:56:00 2013 read : io=39792MB, bw=111409KB/s, iops=1740, runt=365742msec Any reason for why this is happening? Am I missing something here? These are my blktrace and parse commands I use blktrace -w 130 -d /dev/sdb -a read -b 4096 -o 4K_RR_Trace blkparse -i ./*.blktrace.0 -d ./bp.bin -o bp.txt -w 0:130 Any pointers appreciated... Thanks -- 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