Re: [PATCH v3 0/3] block/diskstats: more accurate io_ticks and optimization

Jens Axboe
2020-03-24T16:06:31Z

On 3/24/20 12:39 AM, Konstantin Khlebnikov wrote:
> Simplified estimation for io_ticks introduced in patch
> https://lore.kernel.org/linux-block/20181206164122.2166-5-snitzer@redhat.com/
> could be very inaccurate for request longer than jiffy (i.e. any HDD)
>
> There is at least one another report about this:
> https://lore.kernel.org/linux-block/20200324031942.GA3060@ming.t460p/
> See detail in comment for first patch.
>
> v1: https://lore.kernel.org/lkml/155413438394.3201.15211440151043943989.stgit@buzz/
> v2: https://lore.kernel.org/lkml/158314549775.1788.6529015932237292177.stgit@buzz/
> v3:
> * update documentation
> * rebase to current linux-next
> * fix compilation for CONFIG_SMP=n

Can you respin this against my for-5.7/block branch?

--
Jens Axboe