[CFT] VMware vmxnet3 ethernet driver
bryanv at daemoninthecloset.org
Tue Sep 3 03:31:28 UTC 2013
----- Original Message -----
> ----- Original Message -----
> > Bezüglich Bryan Venteicher's Nachricht vom 27.08.2013 06:18 (localtime):
> > ...
> The intr usage is higher than the other drivers you compared against
> because if_vmx does the off-level processing in ithreads where as the
> others do it in a taskqueue.
> BTW: if_vmx can to LRO as well. I don't think the emulated e1000 can,
> but I bet the e1000e does.
> > if_vmx <-> if_vmx
> > 1.32 GBits/sec, load: 10-45%Sys 40-48%Intr
> > if_vmxJumbo <-> if_vmxJumbo
> > 5.01 GBits/sec, load: 10-45%Sys 40-48%Intr
> > Please find attached the different outputs of dev.vmx.X (the mtu9000 run
> > was
> > only 3.47GBits/sec in that case, took the numbers anyway)
Thanks for the sysctl output.
For the number of packets transmitted, there's a really high
percentage of time we find the Tx queue full enough it is not
able to hold the next to transmit frame. I've haven't been
able to recreate this. But I recently made a commit  that
might help alleviate this.
> > wbr,
> > -Harry
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