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I am trying to use FIO to perform performance test on HDDs. I want to restrict random read test in particular section of HDD (For eg: Random read in first 1TB of HDDs). Can someone please let me know which argument in the config file I should to restrict test run in certain section of drives.
Hi Dmitry, I looked for the size=int option for FIO. It looked to me like size option will allow to run IO of that particular size(as compared to restrict IO operation with the specified size). I am getting this from following link: https://linux.die.net/man/1/fio (plz search size). Am I reading it wrong?
– None – 2017-06-20T16:53:29.7101
@Prabhat Your understanding is incomplete and Dmitry's answer is correct. As stated in the links off his question, fio's
– Anon – 2017-10-26T05:36:54.530size
option can control the amount AND the end of the range. Fio actually has a separate optionio_size
to control just the amount.