Re: [PATCH] block: BFQ default for single queue devices

Paolo Valente
2018-10-04T20:19:34Z

> Il giorno 04 ott 2018, alle ore 21:25, Alan Cox =
<gnomes@lxorguk.ukuu.org.uk> ha scritto:
>=20
>> I agree with Jens that it's best to leave it to the Linux =
distributors to
>> select a default I/O scheduler.
>=20
> That assumes such a thing exists.

Well, as of now the default is more or less in the Schrdinger's cat =
state :)

Metaphors apart, I do agree with your point. As for me, what you
point out is one of the core issues at stake here.

Thanks,
Paolo

> The kernel knows what devices it is
> dealing with. The kernel 'default' ought to be 'whatever is usually =
best
> for this device'. A distro cannot just pick a correct single default
> because NVME and USB sticks are both normal and rather different in =
needs.
>=20
> Alan