On Wed, 30 Aug 2017 17:41:20 +0800 Bob Chen <a175818...@gmail.com> wrote:
> I think I have observed what you said... > > The link speed on host remained 8GT/s until I finished running > p2pBandwidthLatencyTest > for the first time. Then it became 2.5GT/s... > > > # lspci -s 09:00.0 -vvv ... > LnkSta: Speed 8GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- BWMgmt- So long as the device renegotiates to 8GT/s under load rather than getting stuck at 2.5GT/s, I think this is the expected behavior. This is a power saving measure by the driver. Thanks, Alex
