Commit | Line | Data |
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3e260a46 JA |
1 | # Test job that demonstrates how to use the latency target |
2 | # profiling. Fio will find the queue depth between 1..128 | |
3 | # that fits within the latency constraints of this 4k random | |
4 | # read workload. | |
5 | ||
6 | [global] | |
7 | bs=4k | |
8 | rw=randread | |
9 | random_generator=lfsr | |
10 | direct=1 | |
11 | ioengine=libaio | |
12 | iodepth=128 | |
13 | # Set max acceptable latency to 500msec | |
14 | latency_target=500000 | |
15 | # profile over a 5s window | |
16 | latency_window=5000000 | |
17 | # 99.9% of IOs must be below the target | |
18 | latency_percentile=99.9 | |
19 | ||
20 | [device] | |
21 | filename=/dev/sda |