HKG18-416 - I'm BFQ, I'm dynamite (or almost ...)

Session ID: HKG18-416 Session Name: HKG18-416 - I’m BFQ, I’m dynamite (or almost …) Speaker: Paolo Valente Track: Kernel

Session Summary

BFQ has greatly improved over the last months. Now it handles I/O at up to 400+ KIOPS with commodity CPUs, and extends its close-to-optimal responsiveness guarantees on any single-queue storage medium, from eMMC to fast SSDs. In this presentation we show these improvements, and:

  • show how the work ‘around’ BFQ also influenced the benchmarking arena: from the consolidation of a responsiveness (application start-up time) test in the Phoronix benchmark suite, to the entry of the same test in the MMtests suite;
  • prove the good match between BFQ and the new blk-mq support in mmc (Ulf&Linus; work), with demos and graphs;
  • provide an update on the status of the proposal of BFQ as the default I/O scheduler for all single-queue storage;
  • list the next important challenges for letting BFQ enter the server&cloud; world too.


Event Page: Presentation: None Video:

Event Details

hkg18 19-23 March 2018 Regal Airport Hotel Hong Kong

Keyword: Kernel ‘’ ‘’

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Speakers: Paolo Valente

Speaker Positions: Assistant professor

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