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=Comment: #0=================================================
Emily J. Ratliff <emilyr.com> - 2008-09-16 18:07 EDT
1. Feature Overview:
Feature Id: [201185]
a. Name of Feature: Iconv character Conversion Routines Speedup.
b. Feature Description
Make use of the translate hw instruction to speedup character conversion routines in glibc.
2. Feature Details:
Sponsor: zSeries
Architectures:
s390x
Arch Specificity: Purely Arch Specific Code
Affects Toolchain: Yes
Delivery Mechanism: Direct from community
Category: Toolchain
Request Type: Toolchain - Enhancement from IBM
d. Upstream Acceptance: In Progress
Sponsor Priority 1
f. Severity: High
IBM Confidential: no
Code Contribution: IBM code
g. Component Version Target: glibc 2.8
Performance Assistance: yes
3. Business Case
Improved performance (approx. 15x) in character conversion routines by exploiting HW instruction
rather than doing it in SW. Character conversion routines are repeatedly used in System z
application during conversion between EBCDIC and ASCII character sets since the character set of
data stored in a database often differ from the character set used for files and system routines.
4. Primary contact at Red Hat:
John Jarvis
jjarvis
5. Primary contacts at Partner:
Project Management Contact:
Hans-Georg Markgraf, mgrf.com, Boeblingen 49-7031-16-3978
Technical contact(s):
Gonzalo Muelas Serrano, gmuelas.com
IBM Manager:
Thomas Schwarz, t.schwarz.com
The code for this feature is submitted for glibc 2.10.
glibc 2.10 is part of Fedora 11.
Expect this to come via upstream glibc 2.10
No code attach to feature BZ
------- Comment From mgrf.com 2009-09-22 09:12 EDT-------
This is accepted upstream with glibc 2.11
No code to attach - Red Hat takes patch from upstream
Comment 6releng-rhel@redhat.com
2009-11-04 13:28:51 UTC
Fixed in 'glibc-2.10.90-26', included in compose 'RHEL6.0-20091103.0'.
Moving to ON_QA.
------- Comment From mgrf.com 2010-05-11 10:55 EDT-------
This feature is verified on R6 betas
-> set to verified
Comment 9releng-rhel@redhat.com
2010-11-10 20:28:51 UTC
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.