Bug 1871395 - glibc: Improve IBM Z (s390x) Performance
Summary: glibc: Improve IBM Z (s390x) Performance
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: glibc
Version: 8.4
Hardware: s390x
OS: Linux
unspecified
medium
Target Milestone: rc
: 8.0
Assignee: Patsy Griffin
QA Contact: Sergey Kolosov
Zuzana Zoubkova
URL:
Whiteboard:
Depends On:
Blocks: 1877115
TreeView+ depends on / blocked
 
Reported: 2020-08-23 02:45 UTC by Carlos O'Donell
Modified: 2023-07-18 14:30 UTC (History)
10 users (show)

Fixed In Version: glibc-2.28-131.el8
Doc Type: Enhancement
Doc Text:
.Optimized performance of `memcpy` and `memset` on IBM Z With this enhancement, the core library implementation for the `memcpy` and `memset` APIs were adjusted to accelerate both small (< 64KiB) and larger data copies on IBM Z processors. As a result, applications working with in-memory data now benefit from significantly improved performance across a wide variety of workloads.
Clone Of:
Environment:
Last Closed: 2021-05-18 14:36:39 UTC
Type: Enhancement
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Carlos O'Donell 2020-08-23 02:45:19 UTC 
Backport the following patches to improve performance:

0792c8ae1aebf538de45ff9a0e2e401a60525de2
S390: Optimize __memcpy_z196.

1d21fb1061cbeb50414a8f371abb36548d90f150
S390: Optimize __memset_z196.

These routines while targeting Z196 are used by all hardware that is newer than Z196. There are no specialized versions for Z14 or beyond on s390x.
Comment 14 errata-xmlrpc 2021-05-18 14:36:39 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 (Moderate: glibc security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.

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

https://access.redhat.com/errata/RHSA-2021:1585
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