Single core usage spike cause intermittently by ifconfig

[isamudaison]

@AdSchellevis pointed out the place in the source code where this call is used. legacy_interfaces_details function is used quite widely, so i don't think that not using a couple of widgets can completely get rid of the problem

I can confirm removing the 'interface status' widget eliminates the issue.

We were hoping FreeBSD 13 would behave better but now we're putting our workaround back for 22.1. The problem is this is either a hardware or driver issue. Generally, we don't recommend the Intel ixgbe-driver based cards at all.


Cheers,
Franco

Unfortunately there aren't a lot of options for multi-gigabit ethernet-based cards :/

[franco]

> Unfortunately there aren't a lot of options for multi-gigabit ethernet-based cards :/

That's true. We will try to take the topic to FreeBSD, but if in practice nobody high profile is using these cards chances of fixes even from Intel itself are slimmer.


Cheers,
Franco