[Bug 1444241] Re: Add more POWER8 optimizations

Mauricio Faria de Oliveira mauricfo at linux.vnet.ibm.com
Fri Aug 14 13:16:20 UTC 2015


Thanks, Sebastien.   Yes, the changes are in wily.
For documentation purposes. The numbers in a KVM guest on POWER8 match those in comment #2.

$ lsb_release -d
Description:    Ubuntu Wily Werewolf (development branch)

$ dpkg -s openssl | grep ^Version:
Version: 1.0.2d-0ubuntu1

$ openssl speed -evp aes-128-gcm
...
aes-128-gcm     245286.05k   562263.25k  1246015.74k  1527520.94k  1611202.56k


$ openssl speed -evp aes-128-ctr
...
aes-128-ctr     343161.12k   846347.46k  2721303.72k  4169064.79k  4955196.07k

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https://bugs.launchpad.net/bugs/1444241

Title:
  Add more POWER8 optimizations

Status in openssl package in Ubuntu:
  Fix Released

Bug description:
  There are some upstream commits that introduce optimizations with significant performance improvement for IBM POWER8.
  This patch introduces their minimal bits/changes in the source package.

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