> Il giorno 04 ago 2017, alle ore 07:35, Paolo Valente
> <paolo.vale...@linaro.org> ha scritto:
> these two patches improve throughput-boosting logic in two
> aspects. The first patch refactors the parts of the device-idling
> logic, related to throughput boosting, that are still scattered across
> the source file bfq-iosched.c. The patch concetrates all the logic in
> one function. The second patch fixes/improves device idling for
> flash-based devices that have no internal queueing of I/O requests.
> The contribution in the first patch has been triggered by that in the
> second patch: finding the change made by the second patch has been
> more difficult than it had to be, because the logic that decides
> whether to idle the device is scattered across three functions.
> The second patch provides a significant throghput boost, for random
> I/O with flash-based non-queueing devices. For example, on a HiKey
> board, throughput increases by up to 125%, growing, e.g., from 6.9MB/s
> to 15.6MB/s with two or three random readers in parallel.
any idea about the fate of these two patches?
> Paolo Valente (2):
> block,bfq: refactor device-idling logic
> block, bfq: boost throughput with flash-based non-queueing devices
> block/bfq-iosched.c | 144 ++++++++++++++++++++++++++++------------------------
> block/bfq-iosched.h | 12 ++---
> 2 files changed, 85 insertions(+), 71 deletions(-)