toadman
Guru
- Joined
- Jun 4, 2013
- Messages
- 619
I recently upgraded from 9.10.1-U4 to 9.10.2 and saw a significant drop in ARC hit ratio. For the last year the hit ratio was reported at an average of 95%. Now it's reported at 68%. The ARC size has remained constant at about 6GB (on an 8GB system). The system is a lightly loaded home system serving media to a few clients and hosting an NFS datastore for an esxi host with about 7 lightly loaded VMs running.
Anyone else seeing this after an upgrade to 9.10.2? I'm curious if it's a difference in the reporting vs. an actual change in ARC performance. I have yet to do any tests on the performance myself, but there doesn't appear to be a noticeable change in responsiveness from any interactive client as of yet.
Freenas 9.10.2
Running in a VM with 8GB memory and 2 vCPU
ESXi 6.0 host with AMD 1100T, ASUS M5A97 r2.0, 32GB Crucial ECC memory
Storage is 6x2TB and 4x3TB WD RED in 5x2 mirrors running off an passed through LSI 9211-8i in IT mode
Anyone else seeing this after an upgrade to 9.10.2? I'm curious if it's a difference in the reporting vs. an actual change in ARC performance. I have yet to do any tests on the performance myself, but there doesn't appear to be a noticeable change in responsiveness from any interactive client as of yet.
Freenas 9.10.2
Running in a VM with 8GB memory and 2 vCPU
ESXi 6.0 host with AMD 1100T, ASUS M5A97 r2.0, 32GB Crucial ECC memory
Storage is 6x2TB and 4x3TB WD RED in 5x2 mirrors running off an passed through LSI 9211-8i in IT mode