Hi FreeNAS gurus,
I'm testing freenas on following machine :
Dual Xeon CPU X5687 @ 3.60GHz
128 GB Ram.
Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection dual port + twinax cable.
Intel P3700 1.6TB NVME SSD as the storage device ( single device ZFS volume)
My test consists of reading a 40GB file from another freenas installation over NFSv3 using dd, and sending it to /dev/null. When I repeat the test and monitor the disk activity on the server, I see zero disk activity meaning the file is being served directly from the ARC cache, but I don't seem to be able to exceed 450 MB/s on average . it has few moments when it reaches the 850 MB/s but quickly falls back to 400-450 MB/s .
I can not use jumbo frame in our setup and currently using 1500 byte MTU, iperf reports 9.7 Gbps bandwidth between the server and client machine.
Please advise.
-Ali
I'm testing freenas on following machine :
Dual Xeon CPU X5687 @ 3.60GHz
128 GB Ram.
Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection dual port + twinax cable.
Intel P3700 1.6TB NVME SSD as the storage device ( single device ZFS volume)
My test consists of reading a 40GB file from another freenas installation over NFSv3 using dd, and sending it to /dev/null. When I repeat the test and monitor the disk activity on the server, I see zero disk activity meaning the file is being served directly from the ARC cache, but I don't seem to be able to exceed 450 MB/s on average . it has few moments when it reaches the 850 MB/s but quickly falls back to 400-450 MB/s .
I can not use jumbo frame in our setup and currently using 1500 byte MTU, iperf reports 9.7 Gbps bandwidth between the server and client machine.
Please advise.
-Ali