On 4/22/19 7:33 PM, Alex Williamson wrote:
On Mon, 22 Apr 2019 19:05:57 -0500
Alex G <mr.nuke.me@xxxxxxxxx> wrote:
echo 0000:07:00.0:pcie010 |
sudo tee /sys/bus/pci_express/drivers/pcie_bw_notification/unbind
That's a bad solution for users, this is meaningless tracking of a
device whose driver is actively managing the link bandwidth for power
purposes.
0.5W savings on a 100+W GPU? I agree it's meaningless.
There is nothing wrong happening here that needs to fill
logs. I thought maybe if I enabled notification of autonomous
bandwidth changes that it might categorize these as something we could
ignore, but it doesn't.
How can we identify only cases where this is
an erroneous/noteworthy situation? Thanks,
You don't. Ethernet doesn't. USB doesn't. This logging behavior is
consistent with every other subsystem that deals with multi-speed links.
I realize some people are very resistant to change (and use very ancient
kernels). I do not, however, agree that this is a sufficient argument to
dis-unify behavior.
Alex
