Messages in this thread | | | Subject | Re: [PATCH RFC 09/22] block, cfq: replace CFQ with the BFQ-v0 I/O scheduler | From | Paolo Valente <> | Date | Wed, 9 Mar 2016 07:55:28 +0100 |
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Il giorno 04/mar/2016, alle ore 18:39, Christoph Hellwig <hch@infradead.org> ha scritto:
> On Sat, Mar 05, 2016 at 12:29:39AM +0700, Linus Walleij wrote: >> Hi Tejun, >> >> I'm doing a summary of this discussion as a part of presenting >> Linaro's involvement in Paolo's work. So I try to understand things. > > Btw, can someone explain why you guys waste so much time hacking and > arguing about a legacy codebase (old request code and I/O schedulers) > that everyone would really like to see disappear. Why don't you > spend your time on blk-mq where you have an entirely clean slate > for scheduling?
I do agree that it would very important to deal with blk-mq. And much more difficult. IMHO, a clean way to proceed is to first try to improve bandwidth and latency guarantees in the simplest, single-queue case. Then to face the multi-queue case, leveraging the lessons learned in the single-queue case.
Thanks, Paolo
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