[Bug 1582181] Re: AArch64: slow cpuinfo due to redundant loop

[Brian Murray]

Hello Alexandru, or anyone else affected,

Accepted lshw into artful-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/lshw/02.18-0.1ubuntu4.1 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-artful to verification-done-artful. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-artful. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: lshw (Ubuntu Artful)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-artful

** Changed in: lshw (Ubuntu Xenial)
       Status: New => Fix Committed

** Tags added: verification-needed-xenial

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https://bugs.launchpad.net/bugs/1582181

Title:
  AArch64: slow cpuinfo due to redundant loop

Status in lshw package in Ubuntu:
  Fix Released
Status in lshw source package in Xenial:
  Fix Committed
Status in lshw source package in Artful:
  Fix Committed
Status in lshw source package in Bionic:
  Fix Released

Bug description:
  [Impact]
  lshw takes too long time on parsing /proc/cpuinfo on aarch64 system
  It takes minutes on 96cores and almost 10min on 224cores system.

  [Test Case]
  `time lshw` and it shall be less then 15sec

  [Regression Potential]
  This patch only modifies codes for aarch64. Lowest regression rick on other arch and has been tested on aarch64

  [Other Info]
  Patch has been merged into upstream branch.
  https://github.com/lyonel/lshw/commit/20cda77239e8604e798b87a0441e694edb0214d1

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