On Wed, Aug 3, 2016 at 8:07 PM, Momtchil Momtchev <[email protected]> wrote:
> Does anyone with a working knowledge of re(4) have any idea why the PC
> Engines APU NICs perform so poorly in OpenBSD?
Most likely lack of hardware interrupt moderation in the driver.
There's code in re_setup_hw_im() that looks like might do something
plausible with the interrupt moderation register but AFAICT it'll
never be called because rl_imtype is always set to "RL_IMTYPE_SIM".
I tried to get hardware interrupt moderation working a while back but
it didn't seem to make a difference (which is probably an indication
that I did something wrong). I could dig up the patch if you'd like
to try it.
The other thing to be aware of is that if you're following current,
POOL_DEBUG is usually set in your config, which will be quite
expensive when pushing packets.
--
Darren Tucker (dtucker at zip.com.au)
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860 37F4 9357 ECEF 11EA A6FA (new)
Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.
