This bug was fixed in the package glibc - 2.23-0ubuntu11
---------------
glibc (2.23-0ubuntu11) xenial; urgency=medium
* debian/patches/ubuntu/xsave-part1.diff and
debian/patches/ubuntu/xsave-part2.diff: Fix a serious performance
regression when mixing SSE and AVX code on certain processors.
The patches are from the upstream 2.23 stable branch. (LP: #1663280)
-- Daniel Axtens <[email protected]> Thu, 04 Oct 2018
10:29:55 +1000
** Changed in: glibc (Ubuntu Xenial)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1663280
Title:
Serious performance degradation of math functions
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