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Bug 964044 - serious CPU time regressions in the glibc math library
Summary: serious CPU time regressions in the glibc math library
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: glibc
Version: 6.4
Hardware: x86_64
OS: Linux
urgent
high
Target Milestone: rc
: ---
Assignee: Carlos O'Donell
QA Contact: Miroslav Franc
URL:
Whiteboard:
Depends On: 929388
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-05-17 06:54 UTC by Libor Miksik
Modified: 2018-12-04 15:21 UTC (History)
21 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A fix to prevent logic errors in various mathematical functions, including exp, exp2, expf, exp2f, pow, sin, tan, and rint, caused by inconsistent results when the functions were used with the non-default rounding mode , creates performance regressions for certain inputs. The performance regressions have been analyzed and the core routines have been optimized to bring performance back to reasonable levels.
Clone Of:
Environment:
Last Closed: 2013-07-11 13:39:00 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2013:1046 0 normal SHIPPED_LIVE glibc bug fix update 2013-07-11 17:34:08 UTC

Description Libor Miksik 2013-05-17 06:54:11 UTC 
This bug has been copied from bug #929388 and has been proposed
to be backported to 6.4 z-stream (EUS).
Comment 21 errata-xmlrpc 2013-07-11 13:39:00 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2013-1046.html
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