如何使用 FIO 测试 FUSE 文件系统？

Question

I'm using fio to test the performance of fuse filesystem using this commandline:

fio -filename=/User/mbl/fusefs -direct=1 -iodepth 1 -thread -rw=write -ioengine=psync -bs=16k -size=1G -numjobs=30 -runtime=1000 -group_reporting -name=mytest

in which /User/mbl/fusefs is the path of my fuse filesystem. However, I met this error:

fio: pid=0, err=21/file:filesetup.c:137, func=unlink, error=Is a directory

I searched on the internet and they said that fio can only test a block_device, such as --filename=/dev/$block_device, but I don't know how to make a fuse filesystem to be a block_device. Is there any way?

Answer 1

instead of filename -filename=/User/mbl/fusefs use --directory=/User/mbl/fusefs