Hi!
I really like ZFS, but i was not able to get a REALLY good performance as ZFS-iscsi-target for small IO.
Today, my test to look at its limits was:
- Pool of only one Optane 900p
- Pool of a stripe of two Optane 900p
- Pool of one Optane as simple-volume + one Optane as SLOG
Result was always:
Not more than 60.000 IOPS at 8kb, 50% write, diskspd. Read was about 110.000 IOPS.
...tested with OpenE Jovian and VSphere as Client.
Same with Starwind was MUCH faster.
What I could see was a huge CPU load - up 100!
Do you think, higher IOPS are possible with faster CPUs, or are there just some limits with ZFS?
Thank you for your help!
Stril.
...I know, OpenE is running ZoL which is not as fast as others, but I need commercial support...
I really like ZFS, but i was not able to get a REALLY good performance as ZFS-iscsi-target for small IO.
Today, my test to look at its limits was:
- Pool of only one Optane 900p
- Pool of a stripe of two Optane 900p
- Pool of one Optane as simple-volume + one Optane as SLOG
Result was always:
Not more than 60.000 IOPS at 8kb, 50% write, diskspd. Read was about 110.000 IOPS.
...tested with OpenE Jovian and VSphere as Client.
Same with Starwind was MUCH faster.
What I could see was a huge CPU load - up 100!
Do you think, higher IOPS are possible with faster CPUs, or are there just some limits with ZFS?
Thank you for your help!
Stril.
...I know, OpenE is running ZoL which is not as fast as others, but I need commercial support...