[Bug 1157244] [NEW] backport eglibc performance regression fix

[mokabar]

Public bug reported:

glibc-2.17 has a performance regression, which causes one of my
workloads to spend a significant amount of cpu time in feraiseexcept.
this regression has already been fixed in glibc's git repository
(http://repo.or.cz/w/glibc.git/commit/0b57daeb) and it would be great,
if this fix could be backported.

tia

** Affects: eglibc (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1157244

Title:
  backport eglibc performance regression fix

Status in “eglibc” package in Ubuntu:
  New

Bug description:
  glibc-2.17 has a performance regression, which causes one of my
  workloads to spend a significant amount of cpu time in feraiseexcept.
  this regression has already been fixed in glibc's git repository
  (http://repo.or.cz/w/glibc.git/commit/0b57daeb) and it would be great,
  if this fix could be backported.

  tia

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