Messages in this thread | | | Date | Wed, 26 May 2021 16:51:12 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH v2 16/17] leds: leds-nuc: add support for changing the ethernet type indicator |
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Hi!
> > You say that for this controller it would be bad to do in SW, because it > > would take too much time in BIOS calls. (I wonder how much...) > > Yeah, it would be interesting to know how much. However, measuring BIOS > latency and time spent on such calls can be tricky: one needs to use a > high-res clock that it is not used anywhere else, in order to measure > it.
I'm sure you can time kernel compilation while LEDs are using software netdev trigger, for example.
Pavel -- http://www.livejournal.com/~pavelmachek [unhandled content-type:application/pgp-signature] | |