I'm currently using both iozone and fio to test my disk performance. However, iozone show much much poor speed than what is shown from fio. (about 1/3)
Now the question for me is which number should I use and why there is such a gap.
The command I used are:
iozone -s 40G -i 0 -i 1 -b /mnt/ext/40Gtest.xls -f /mnt/ext/iofile.ioz -w -Racz fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=/mnt/ext/testfile --bs=64k --iodepth=64 --size=4G --readwrite=read