Archive for Juni 9th, 2012

fio 2.0.8 – a disk performance checking utility

Samstag, Juni 9th, 2012

fio_logo.jpg   This site contains Windows binaries for fio. To measure the disk performance we want to bypass the page cache – so we need to set direct to be 1. This also ensures that the I/O scheduler sends every request it receives to the disk without doing any optimization such as request merging

fio_windows_01.jpg

$ fio.bat <IOMeter-Real-Life.txt>

[IOMeter-Real-Life]
directory=c\:\tmp
rw=randrw
rwmixread=70
rwmixwrite=30
size=8g
bs=8k
direct=1
iodepth=64
runtime=300s

fio_example_02.jpg