fio-常用命令

• 最简单的fio命令：fio --name=test --filename=/dev/nvme0n1

  • 实际为"4k单job顺序读全盘，队列深度1，job数量1"，大部分参数都有默认值
• 顺序填盘：fio --output-format=normal -ioengine=libaio -randrepeat=0 -norandommap -thread -stonewall -group_reporting -loops=2 -random_generator=tausworthe64 -filename=/dev/${disk} -direct=1 -percentile_list=99:99.9:99.99:99.999:99.9999:99.99999:99.999999 -name=test -rw=write -bs=128k -numjobs=1 -iodepth=512 -size=100% -offset=0
• 128k顺序写带宽测试：fio --output-format=normal -ioengine=libaio -randrepeat=0 -norandommap -thread -stonewall -group_reporting -runtime=3600 -time_based -percentile_list=99:99.9:99.99:99.999:99.9999:99.99999:99.999999 -random_generator=tausworthe64 -filename=/dev/${disk} -direct=1 -name=test -rw=write -bs=128k -numjobs=1 -iodepth=512 -size=100% -offset=0 
• 128k顺序读带宽测试：fio --output-format=normal -ioengine=libaio -randrepeat=0 -norandommap -thread -stonewall -group_reporting -runtime=1800 -time_based -percentile_list=99:99.9:99.99:99.999:99.9999:99.99999:99.999999 -random_generator=tausworthe64 -filename=/dev/${disk} -direct=1 -name=test -rw=read -bs=128k -numjobs=1 -iodepth=512 -size=100% -offset=0

• 随机填盘：fio --output-format=normal -ioengine=libaio -randrepeat=0 -norandommap -thread -stonewall -group_reporting -loops=2 -filename=/dev/${disk} -percentile_list=99:99.9:99.99:99.999:99.9999:99.99999:99.999999 -random_generator=tausworthe64 -direct=1 -name=test -rw=randwrite -bs=4k -numjobs=2 -iodepth=128 -size=100% -offset=0

• 4k随机写测试：fio --output-format=normal -ioengine=libaio -randrepeat=0 -norandommap -thread -stonewall -group_reporting -runtime=3600 -time_based -percentile_list=99:99.9:99.99:99.999:99.9999:99.99999:99.999999 -random_generator=tausworthe64 -filename=/dev/${disk} -direct=1 -name=test -rw=randwrite -bs=4k -numjobs=8 -iodepth=64 -size=100% -offset=0

• 4k随机读测试：fio --output-format=normal -ioengine=libaio -randrepeat=0 -norandommap -thread -stonewall -group_reporting -runtime=1800 -time_based -percentile_list=99:99.9:99.99:99.999:99.9999:99.99999:99.999999 -random_generator=tausworthe64 -filename=/dev/${disk} -direct=1 -name=test -rw=randread -bs=4k -numjobs=8 -iodepth=128 -size=100% -offset=0

• 4k随机读时延测试：fio --output-format=normal -ioengine=sync -randrepeat=0 -norandommap -thread -stonewall -group_reporting -runtime=600 -time_based -percentile_list=99:99.9:99.99:99.999:99.9999:99.99999:99.999999 -random_generator=tausworthe64 -filename=/dev/${disk} -direct=1 -name=test -rw=randread -bs=4k -numjobs=1 -iodepth=1 -size=100% -offset=0

• 4k随机写时延测试：fio --output-format=normal -ioengine=sync -randrepeat=0 -norandommap -thread -stonewall -group_reporting -runtime=600 -time_based -percentile_list=99:99.9:99.99:99.999:99.9999:99.99999:99.999999 -random_generator=tausworthe64 -filename=/dev/nvme0n1 -direct=1 -name=test -rw=randwrite -bs=4k -numjobs=1 -iodepth=1 -size=100% -offset=0