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* [Bug math/14496] New: Bytemark FOURIER 54% slower
@ 2012-08-19 8:17 wbrana at gmail dot com
2012-08-19 9:31 ` [Bug math/14496] " markus at trippelsdorf dot de
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: wbrana at gmail dot com @ 2012-08-19 8:17 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
Bug #: 14496
Summary: Bytemark FOURIER 54% slower
Product: glibc
Version: 2.16
Status: NEW
Severity: normal
Priority: P2
Component: math
AssignedTo: unassigned@sourceware.org
ReportedBy: wbrana@gmail.com
Classification: Unclassified
http://www.tux.org/~mayer/linux/nbench-byte-2.2.3.tar.gz
glibc 2.16
FOURIER : 16696 : 18.99 : 10.66
glibc 2.14.1
FOURIER : 36552 : 41.57 : 23.35
CFLAGS = -ggdb -Wall -O3 -funroll-loops -g0 -march=core2 -fomit-frame-pointer
-ffast-math -mssse3 -fno-PIE -fno-exceptions -fno-stack-protector -static
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
@ 2012-08-19 9:31 ` markus at trippelsdorf dot de
2012-08-19 16:17 ` wbrana at gmail dot com
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: markus at trippelsdorf dot de @ 2012-08-19 9:31 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
Markus Trippelsdorf <markus at trippelsdorf dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |markus at trippelsdorf dot
| |de
Resolution| |DUPLICATE
--- Comment #1 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-08-19 09:31:02 UTC ---
Dup of Bug 14412
*** This bug has been marked as a duplicate of bug 14412 ***
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
2012-08-19 9:31 ` [Bug math/14496] " markus at trippelsdorf dot de
@ 2012-08-19 16:17 ` wbrana at gmail dot com
2012-08-19 18:42 ` wbrana at gmail dot com
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: wbrana at gmail dot com @ 2012-08-19 16:17 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
wbrana at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|DUPLICATE |
--- Comment #2 from wbrana at gmail dot com 2012-08-19 16:16:43 UTC ---
I restored file sysdeps/x86_64/fpu/s_sincos.S and it didn't help.
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
2012-08-19 9:31 ` [Bug math/14496] " markus at trippelsdorf dot de
2012-08-19 16:17 ` wbrana at gmail dot com
@ 2012-08-19 18:42 ` wbrana at gmail dot com
2012-08-19 18:52 ` wbrana at gmail dot com
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: wbrana at gmail dot com @ 2012-08-19 18:42 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
--- Comment #3 from wbrana at gmail dot com 2012-08-19 18:41:44 UTC ---
FOURIER with sysdeps/x86_64/fpu/s_sincos.S restored
Each sample counts as 0.01 seconds.
% cumulative self self total
time seconds seconds calls ms/call ms/call name
27.57 6.89 6.89 __ieee754_pow_sse2
25.47 13.25 6.36 feraiseexcept
15.26 17.06 3.81 __sin_sse2
14.46 20.67 3.61 __cos_sse2
10.21 23.22 2.55 __exp1
4.02 24.22 1.01 __dubsin
2.40 24.82 0.60 2111 0.28 0.28 DoFPUTransIteration
0.20 24.87 0.05 csloww
0.08 24.89 0.02 __ieee754_exp_sse2
0.08 24.91 0.02 __mpexp_avx
0.08 24.93 0.02 csloww1
0.04 24.94 0.01 __write_nocancel
0.04 24.95 0.01 bsloww2
0.04 24.96 0.01 sincos
0.02 24.97 0.01 __branred
0.02 24.97 0.01 checkint
0.00 24.97 0.00 2111 0.00 0.00 StartStopwatch
0.00 24.97 0.00 2111 0.00 0.00 StopStopwatch
0.00 24.97 0.00 2110 0.00 0.00 TicksToSecs
0.00 24.97 0.00 10 0.00 0.00 AllocateMemory
0.00 24.97 0.00 10 0.00 0.00 FreeMemory
0.00 24.97 0.00 5 0.00 120.00 DoFourier
0.00 24.97 0.00 5 0.00 0.00 TicksToFracSecs
0.00 24.97 0.00 1 0.00 0.00 main
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
` (2 preceding siblings ...)
2012-08-19 18:42 ` wbrana at gmail dot com
@ 2012-08-19 18:52 ` wbrana at gmail dot com
2012-08-19 20:57 ` wbrana at gmail dot com
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: wbrana at gmail dot com @ 2012-08-19 18:52 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
--- Comment #4 from wbrana at gmail dot com 2012-08-19 18:52:29 UTC ---
FOURIER with glibc 2.14.1
Each sample counts as 0.01 seconds.
% cumulative self self total
time seconds seconds calls ms/call ms/call name
27.47 6.87 6.87 __ieee754_pow
20.43 11.98 5.11 __exp1
18.59 16.63 4.65 sin
15.87 20.60 3.97 cos
7.96 22.59 1.99 __dubsin
3.72 23.52 0.93 3030 0.31 0.31 DoFPUTransIteration
2.60 24.17 0.65 pow
1.60 24.57 0.40 isnan
0.80 24.77 0.20 finite
0.64 24.93 0.16 csloww
0.28 25.00 0.07 csloww1
0.04 25.01 0.01 clock
0.00 25.01 0.00 3030 0.00 0.00 StartStopwatch
0.00 25.01 0.00 3030 0.00 0.00 StopStopwatch
0.00 25.01 0.00 3028 0.00 0.00 TicksToSecs
0.00 25.01 0.00 12 0.00 0.00 AllocateMemory
0.00 25.01 0.00 12 0.00 0.00 FreeMemory
0.00 25.01 0.00 5 0.00 186.00 DoFourier
0.00 25.01 0.00 5 0.00 0.00 TicksToFracSecs
0.00 25.01 0.00 1 0.00 0.00 main
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
` (3 preceding siblings ...)
2012-08-19 18:52 ` wbrana at gmail dot com
@ 2012-08-19 20:57 ` wbrana at gmail dot com
2012-08-20 3:37 ` ppluzhnikov at google dot com
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: wbrana at gmail dot com @ 2012-08-19 20:57 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
--- Comment #5 from wbrana at gmail dot com 2012-08-19 20:57:01 UTC ---
2.15 isn't broken.
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
` (4 preceding siblings ...)
2012-08-19 20:57 ` wbrana at gmail dot com
@ 2012-08-20 3:37 ` ppluzhnikov at google dot com
2013-01-09 9:40 ` siddhesh at redhat dot com
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: ppluzhnikov at google dot com @ 2012-08-20 3:37 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
Paul Pluzhnikov <ppluzhnikov at google dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ppluzhnikov at google dot
| |com
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
` (5 preceding siblings ...)
2012-08-20 3:37 ` ppluzhnikov at google dot com
@ 2013-01-09 9:40 ` siddhesh at redhat dot com
2013-01-18 7:42 ` siddhesh at redhat dot com
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: siddhesh at redhat dot com @ 2013-01-09 9:40 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
Siddhesh Poyarekar <siddhesh at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |siddhesh at redhat dot com
--- Comment #6 from Siddhesh Poyarekar <siddhesh at redhat dot com> 2013-01-09 09:39:52 UTC ---
The reason is most likely b7cd39e8f8c5cf2844f20eb03f545d19c4c25987. I've seen
reports of performance degradation due to this patch in RHEL and is consistent
with the additional feraiseexcept calls.
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
` (6 preceding siblings ...)
2013-01-09 9:40 ` siddhesh at redhat dot com
@ 2013-01-18 7:42 ` siddhesh at redhat dot com
2013-01-18 8:48 ` siddhesh at redhat dot com
2014-06-17 18:33 ` fweimer at redhat dot com
9 siblings, 0 replies; 11+ messages in thread
From: siddhesh at redhat dot com @ 2013-01-18 7:42 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
Siddhesh Poyarekar <siddhesh at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |ASSIGNED
AssignedTo|unassigned at sourceware |siddhesh at redhat dot com
|dot org |
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
` (7 preceding siblings ...)
2013-01-18 7:42 ` siddhesh at redhat dot com
@ 2013-01-18 8:48 ` siddhesh at redhat dot com
2014-06-17 18:33 ` fweimer at redhat dot com
9 siblings, 0 replies; 11+ messages in thread
From: siddhesh at redhat dot com @ 2013-01-18 8:48 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14496
Siddhesh Poyarekar <siddhesh at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #7 from Siddhesh Poyarekar <siddhesh at redhat dot com> 2013-01-18 08:48:09 UTC ---
Fixed in master.
http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=0b57daebab36f59af1d2a02616ee636a7b13ba12
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* [Bug math/14496] Bytemark FOURIER 54% slower
2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
` (8 preceding siblings ...)
2013-01-18 8:48 ` siddhesh at redhat dot com
@ 2014-06-17 18:33 ` fweimer at redhat dot com
9 siblings, 0 replies; 11+ messages in thread
From: fweimer at redhat dot com @ 2014-06-17 18:33 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=14496
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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2012-08-19 8:17 [Bug math/14496] New: Bytemark FOURIER 54% slower wbrana at gmail dot com
2012-08-19 9:31 ` [Bug math/14496] " markus at trippelsdorf dot de
2012-08-19 16:17 ` wbrana at gmail dot com
2012-08-19 18:42 ` wbrana at gmail dot com
2012-08-19 18:52 ` wbrana at gmail dot com
2012-08-19 20:57 ` wbrana at gmail dot com
2012-08-20 3:37 ` ppluzhnikov at google dot com
2013-01-09 9:40 ` siddhesh at redhat dot com
2013-01-18 7:42 ` siddhesh at redhat dot com
2013-01-18 8:48 ` siddhesh at redhat dot com
2014-06-17 18:33 ` fweimer at redhat dot com
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