Iozone degradation on FU740

HiFive Unmatched
1

Hi,
I have executed iozone benchmark on Fu540 & Fu740. I see the degradation in IO-read operations with FU740.

Steps to build and execute iozone:

  1. git clone GitHub - pantheon-systems/iozone: iozone filesystem benchmark, based on v. 3_414
  2. cd iozone/src/current
  3. make CFLAGS=-fcommon linux
  4. ./iozone -a

I am trying to find reason of degradation for io-read operations.
How to get difference between hardware, software & other of U54 & U74?

Thanks

2

I think we need more details. What results are you seeing? On what filesystems?

3

Hi,
PFA for results of U74 vs U54 for ext4 filesystem.

Screenshot from 2021-10-07 17-35-33
Screenshot from 2021-10-07 17-35-331216×846 115 KB

Thanks

4

What is this data? What are the axes? What are the units in the body of the table. Is bigger better, or is smaller better?

I observe that every number in the first 8 columns is bigger for the “U74” than for the “U54” – in some cases more than twice as large e.g. the 64/32 entry. It’s never smaller by more than about 10%.