Hi all,
IHAC met a weird performance issue with XFS:
- Mapped a LUN from a FAS8300 (ONTAP 9.7) to a CentOS 7.8 system
- Aggregate consist of 56 NL-SAS disks
- tested the throughput of LUN ( on RAW device), both read and write throughput > 500MB/s
- Formated that LUN and create a XFS file system and used FIO to test the throughput of file system
- Write throughput > 500MB/s
- Read throughput < 100MB/s -- weird
Any thoughts and suggestions? Thanks in advance!
Best Regards,
Phil
