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* [Bug libc/17074] New: New memset for x86 SSE & x86-64
@ 2014-06-19 17:30 alain.filbois at laposte dot net
2014-06-20 11:14 ` [Bug libc/17074] " fweimer at redhat dot com
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: alain.filbois at laposte dot net @ 2014-06-19 17:30 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17074
Bug ID: 17074
Summary: New memset for x86 SSE & x86-64
Product: glibc
Version: unspecified
Status: NEW
Severity: enhancement
Priority: P2
Component: libc
Assignee: unassigned at sourceware dot org
Reporter: alain.filbois at laposte dot net
CC: drepper.fsp at gmail dot com
Created attachment 7646
--> https://sourceware.org/bugzilla/attachment.cgi?id=7646&action=edit
New_x86_x64_memsets
Hi, in the following of the bug 16830, I propose here 2 memsets codes for x86
(SSE) and x86-64 architectures.
I have spent 2 months and test more than 100 differents versions of memsets, in
order to find the best for the old and new architectures.
I could post some graphical results in some architectures, from Intel Core2 to
Haswell, and for some AMD CPUs.
All is in the attachment.
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* [Bug libc/17074] New memset for x86 SSE & x86-64
2014-06-19 17:30 [Bug libc/17074] New: New memset for x86 SSE & x86-64 alain.filbois at laposte dot net
@ 2014-06-20 11:14 ` fweimer at redhat dot com
2014-06-25 15:01 ` zimmerma+gcc at loria dot fr
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: fweimer at redhat dot com @ 2014-06-20 11:14 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17074
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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* [Bug libc/17074] New memset for x86 SSE & x86-64
2014-06-19 17:30 [Bug libc/17074] New: New memset for x86 SSE & x86-64 alain.filbois at laposte dot net
2014-06-20 11:14 ` [Bug libc/17074] " fweimer at redhat dot com
@ 2014-06-25 15:01 ` zimmerma+gcc at loria dot fr
2014-07-11 8:34 ` alain.filbois at laposte dot net
2015-08-27 22:22 ` [Bug string/17074] " jsm28 at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: zimmerma+gcc at loria dot fr @ 2014-06-25 15:01 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17074
Paul Zimmermann <zimmerma+gcc at loria dot fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |zimmerma+gcc at loria dot fr
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* [Bug libc/17074] New memset for x86 SSE & x86-64
2014-06-19 17:30 [Bug libc/17074] New: New memset for x86 SSE & x86-64 alain.filbois at laposte dot net
2014-06-20 11:14 ` [Bug libc/17074] " fweimer at redhat dot com
2014-06-25 15:01 ` zimmerma+gcc at loria dot fr
@ 2014-07-11 8:34 ` alain.filbois at laposte dot net
2015-08-27 22:22 ` [Bug string/17074] " jsm28 at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: alain.filbois at laposte dot net @ 2014-07-11 8:34 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17074
--- Comment #1 from alain.filbois <alain.filbois at laposte dot net> ---
Created attachment 7694
--> https://sourceware.org/bugzilla/attachment.cgi?id=7694&action=edit
Fast x86 & x64 memsets code.
Hi,
Version 1.1 of the memsets: all 64 bits memsets are now Position Independant
Code and are OK on OpenBSD for example.
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* [Bug string/17074] New memset for x86 SSE & x86-64
2014-06-19 17:30 [Bug libc/17074] New: New memset for x86 SSE & x86-64 alain.filbois at laposte dot net
` (2 preceding siblings ...)
2014-07-11 8:34 ` alain.filbois at laposte dot net
@ 2015-08-27 22:22 ` jsm28 at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2015-08-27 22:22 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=17074
Joseph Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|libc |string
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end of thread, other threads:[~2015-08-27 22:22 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-06-19 17:30 [Bug libc/17074] New: New memset for x86 SSE & x86-64 alain.filbois at laposte dot net
2014-06-20 11:14 ` [Bug libc/17074] " fweimer at redhat dot com
2014-06-25 15:01 ` zimmerma+gcc at loria dot fr
2014-07-11 8:34 ` alain.filbois at laposte dot net
2015-08-27 22:22 ` [Bug string/17074] " jsm28 at gcc dot gnu.org
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