OK, we have all seen the packet drop KB where it recommends you can increase the RX buffers. But it states nothing about the TX buffer in VMXNET3.
I have 2 VMs showing really high Transmit packet drops, and yes I'm aware of the display bug in vCenter 6.0 but I will tell you, despite this bug, I have increased rx buffers and witness the rx packets drops decrease substantially, so I know the change made a difference in my case. So now I'm wondering about the Tx buffers. I am assuming I can inflate them, but to what? I can't find any recommendation on this anywhere.
There appears to be 2 tx related settings:
MAx Tx queues
Tx Ring Size
Please elaborate on whether these values, currently showing "not present" can be modified and to what extent in order to maximize performance
Thanks in advance.
ALso, FYI, as for maybe this is caused by some other performance issue, I say NO. Highest latency to disk is under 1ms. memory is way under used and no ballooning on VM or swapping on the host, counters show 0. CPU ready time is very low.
I'm open to other wisdom though..