group.of.nepali.translators team mailing list archive

[Kamal Mostafa <kamal@xxxxxxxxxxxxx>]

** Also affects: linux-aws (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Changed in: linux-aws (Ubuntu Trusty)
       Status: New => Fix Committed

** Changed in: linux-aws (Ubuntu Trusty)
     Assignee: (unassigned) => Kamal Mostafa (kamalmostafa)

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https://bugs.launchpad.net/bugs/1803613

Title:
  Improve AWS hibernation performance

Status in linux-aws package in Ubuntu:
  Triaged
Status in linux-aws source package in Trusty:
  Fix Committed
Status in linux-aws source package in Xenial:
  Fix Committed
Status in linux-aws source package in Bionic:
  Fix Committed
Status in linux-aws source package in Cosmic:
  Fix Committed
Status in linux-aws source package in Disco:
  Triaged

Bug description:
  From: Aleksei Besogonov <cyberax@xxxxxxxxxx>

  PM / hibernate: Speed up hibernation by batching requests

  Hibernate file reading and writing submits individual IO requests for
  each page of the data. This normally is not a big issue, however some
  cloud computing providers meter IO by the number of requests and not by
  their size. So one 4KB request counts as much as a 256KB request
  towards the IOPS quota.

  With this patch we opportunistically batch the requests together,
  increasing performance by 20-30%.

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