Re: [BUG] - Short freezes in gameplay due to MMC_CAP_AGGRESSIVE_PM on RTS525A card reader

[Bart Van Assche]

On 2/3/26 3:28 AM, Ulf Hansson wrote:
> I guess the question then is, do we always want zero latency, which I
> assume must be costly from a power savings point of view. At least
> during the idle period, while not serving I/O and waiting for the
> device to be runtime suspended.

Block I/O latency suffers if a CPU core enters a lower power state while
waiting for an I/O completion. Hence the choice in the UFS driver for
not allowing CPU cores to enter a lower power state while any block I/O
is in progress.

Bart.