I'm running about 6/7 versions of windows (desktop/server) on esxi and iperf/network performance are pretty bad.
I'm using R610's R620/R720's and I have 2 tests I try.
The first is iperf with localhost and the server and client. I'll get ~2Gbps on the 610's and ~1.5gbps on the newer servers. The second test is a ram disk over a 10G fiber network, which results in about the same speeds. (But for the external tests I do use jumbo packets and RSS)
I don't think it's network related since some tests don't even use a nic, and with the same basic OS install on a dell 790 i5 I'm getting almost 8Gbps REAL throughput to an identical machine over 10G fiber.
Also all VM's have tried with 4/16 vcpu's.
Any suggestions? All power management is turned off on all esxi hosts.
I'm using R610's R620/R720's and I have 2 tests I try.
The first is iperf with localhost and the server and client. I'll get ~2Gbps on the 610's and ~1.5gbps on the newer servers. The second test is a ram disk over a 10G fiber network, which results in about the same speeds. (But for the external tests I do use jumbo packets and RSS)
I don't think it's network related since some tests don't even use a nic, and with the same basic OS install on a dell 790 i5 I'm getting almost 8Gbps REAL throughput to an identical machine over 10G fiber.
Also all VM's have tried with 4/16 vcpu's.
Any suggestions? All power management is turned off on all esxi hosts.