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Gestalt73
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headache
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Joined: 26 May 2004
Posts: 226
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 Posted: Mon Jul 12, 2004 9:48 pm Post subject: |
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After I read the Anandtech benchmarks of 64-bit Linux i thought I was going to replicate one of the benchmarks, namely the POVRAY test.
I did 3 different runs with different CFLAGS. The first run was done with the CFLAGS I normally use to emerge programs with. The second one was just a change from O2 to O3. The last run was with CFLAGS that I extracted from the Acovea thread in the Chat forum.
Between each run, I unmerged and re-emerged povray with the new CFLAGS. I only ran one single test with each set of CFLAGS.
I ran this on an AMD64 3200+ with 1GB of RAM and using gcc 3.4.1 and glibc-2.3.4.20040619.
CFLAGS="-march=k8 -O2 -pipe -funroll-loops -fpeel-loops"
| Code: | Statistics for benchmark.pov, Resolution 384 x 384
----------------------------------------------------------------------------
Pixels: 147840 Samples: 555728 Smpls/Pxl: 3.76
Rays: 1824355 Saved: 23589 Max Level: 12/12
----------------------------------------------------------------------------
Ray->Shape Intersection Tests Succeeded Percentage
----------------------------------------------------------------------------
Box 77295978 9373568 12.13
Cone/Cylinder 75749548 6531688 8.62
CSG Intersection 160974278 55366504 34.39
CSG Merge 771681 34694 4.50
Fractal 1815380 104693 5.77
Height Field 3759713 105232 2.80
Height Field Box 3759713 711817 18.93
Height Field Triangle 3398511 108397 3.19
Height Field Block 5930579 1758119 29.64
Height Field Cell 23668666 1866748 7.89
Isosurface 11694978 719265 6.15
Isosurface Container 12186396 11695534 95.97
Isosurface Cache 158312 41002 25.90
Mesh 12429024 63730 0.51
Plane 85687243 1280724 1.49
Sphere 261647690 153783921 58.78
Superellipsoid 693720 44335 6.39
Torus 2943724 405892 13.79
Torus Bound 2943724 474488 16.12
True Type Font 842539 79753 9.47
Clipping Object 2554850 1520146 59.50
Bounding Box 499515090 146369020 29.30
Vista Buffer 21820603 12553293 57.53
----------------------------------------------------------------------------
Isosurface roots: 11689683
Function VM calls: 169849997
----------------------------------------------------------------------------
Roots tested: 474488 eliminated: 272644
Calls to Noise: 236731216 Calls to DNoise: 2417540818
----------------------------------------------------------------------------
Media Intervals: 36542508 Media Samples: 329623399 (9.02)
Shadow Ray Tests: 119370042 Succeeded: 49124947
Reflected Rays: 222617 Total Internal: 442
Refracted Rays: 144971
Transmitted Rays: 604939
Number of photons shot: 74025
Surface photons stored: 64084
Priority queue insert: 6937092
Priority queue remove: 1278966
Gather function called: 658399
----------------------------------------------------------------------------
Smallest Alloc: 17 bytes Largest: 2720016
Peak memory used: 7887262 bytes
----------------------------------------------------------------------------
Time For Parse: 0 hours 0 minutes 1.0 seconds (1 seconds)
Time For Photon: 0 hours 0 minutes 36.0 seconds (36 seconds)
Time For Trace: 0 hours 22 minutes 55.0 seconds (1375 seconds)
Total Time: 0 hours 23 minutes 32.0 seconds (1412 seconds)
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CFLAGS="-march=k8 -O3 -pipe -funroll-loops -fpeel-loops"
| Code: | Statistics for benchmark.pov, Resolution 384 x 384
----------------------------------------------------------------------------
Pixels: 147840 Samples: 555728 Smpls/Pxl: 3.76
Rays: 1824355 Saved: 23589 Max Level: 12/12
----------------------------------------------------------------------------
Ray->Shape Intersection Tests Succeeded Percentage
----------------------------------------------------------------------------
Box 77295978 9373568 12.13
Cone/Cylinder 75749548 6531688 8.62
CSG Intersection 160974278 55366504 34.39
CSG Merge 771681 34694 4.50
Fractal 1815380 104693 5.77
Height Field 3759713 105232 2.80
Height Field Box 3759713 711817 18.93
Height Field Triangle 3398511 108397 3.19
Height Field Block 5930579 1758119 29.64
Height Field Cell 23668666 1866748 7.89
Isosurface 11694978 719265 6.15
Isosurface Container 12186396 11695534 95.97
Isosurface Cache 158312 41002 25.90
Mesh 12429024 63730 0.51
Plane 85687243 1280724 1.49
Sphere 261647690 153783921 58.78
Superellipsoid 693720 44335 6.39
Torus 2943724 405892 13.79
Torus Bound 2943724 474488 16.12
True Type Font 842539 79753 9.47
Clipping Object 2554850 1520146 59.50
Bounding Box 499515090 146369020 29.30
Vista Buffer 21820603 12553293 57.53
----------------------------------------------------------------------------
Isosurface roots: 11689683
Function VM calls: 169849997
----------------------------------------------------------------------------
Roots tested: 474488 eliminated: 272644
Calls to Noise: 236731216 Calls to DNoise: 2417540818
----------------------------------------------------------------------------
Media Intervals: 36542508 Media Samples: 329623399 (9.02)
Shadow Ray Tests: 119370042 Succeeded: 49124947
Reflected Rays: 222617 Total Internal: 442
Refracted Rays: 144971
Transmitted Rays: 604939
Number of photons shot: 74025
Surface photons stored: 64084
Priority queue insert: 6937092
Priority queue remove: 1278966
Gather function called: 658399
----------------------------------------------------------------------------
Smallest Alloc: 17 bytes Largest: 2720016
Peak memory used: 7887262 bytes
----------------------------------------------------------------------------
Time For Parse: 0 hours 0 minutes 1.0 seconds (1 seconds)
Time For Photon: 0 hours 0 minutes 37.0 seconds (37 seconds)
Time For Trace: 0 hours 22 minutes 56.0 seconds (1376 seconds)
Total Time: 0 hours 23 minutes 34.0 seconds (1414 seconds)
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CFLAGS="-march=k8 -O1 -mieee-fp -funsafe-math-optimizations -freorder-blocks -fstrength-reduce -fstrict-aliasing -fprefetch-loop-arrays -funroll-all-loops -finline-functions -ffast-math"
| Code: | Statistics for benchmark.pov, Resolution 384 x 384
----------------------------------------------------------------------------
Pixels: 147840 Samples: 555728 Smpls/Pxl: 3.76
Rays: 1824355 Saved: 23589 Max Level: 12/12
----------------------------------------------------------------------------
Ray->Shape Intersection Tests Succeeded Percentage
----------------------------------------------------------------------------
Box 77295978 9373568 12.13
Cone/Cylinder 75749548 6531688 8.62
CSG Intersection 160974278 55366504 34.39
CSG Merge 771681 34694 4.50
Fractal 1815380 104693 5.77
Height Field 3759713 105232 2.80
Height Field Box 3759713 711817 18.93
Height Field Triangle 3398511 108397 3.19
Height Field Block 5930579 1758119 29.64
Height Field Cell 23668666 1866748 7.89
Isosurface 11694978 719265 6.15
Isosurface Container 12186396 11695534 95.97
Isosurface Cache 163658 43108 26.34
Mesh 12429024 63730 0.51
Plane 85687243 1280724 1.49
Sphere 261647690 153783921 58.78
Superellipsoid 693720 44335 6.39
Torus 2943724 405892 13.79
Torus Bound 2943724 474488 16.12
True Type Font 842539 79753 9.47
Clipping Object 2554850 1520146 59.50
Bounding Box 499515090 146369020 29.30
Vista Buffer 21820603 12553293 57.53
----------------------------------------------------------------------------
Isosurface roots: 11689683
Function VM calls: 169845487
----------------------------------------------------------------------------
Roots tested: 474488 eliminated: 272644
Calls to Noise: 236697236 Calls to DNoise: 2417539018
----------------------------------------------------------------------------
Media Intervals: 36542508 Media Samples: 329623399 (9.02)
Shadow Ray Tests: 119370042 Succeeded: 49124947
Reflected Rays: 222617 Total Internal: 442
Refracted Rays: 144971
Transmitted Rays: 604939
Number of photons shot: 74025
Surface photons stored: 64084
Priority queue insert: 6937092
Priority queue remove: 1278966
Gather function called: 658399
----------------------------------------------------------------------------
Smallest Alloc: 17 bytes Largest: 2720016
Peak memory used: 7887262 bytes
----------------------------------------------------------------------------
Time For Parse: 0 hours 0 minutes 2.0 seconds (2 seconds)
Time For Photon: 0 hours 0 minutes 36.0 seconds (36 seconds)
Time For Trace: 0 hours 23 minutes 27.0 seconds (1407 seconds)
Total Time: 0 hours 24 minutes 5.0 seconds (1445 seconds)
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As you can see, the first set of CFLAGS yielded the best result. Quite interesting.
When comparing my best run, 1412 seconds with the result in the benchmark with an AMD64 3500+ CPU 1399 seconds, I'd say my box did quite well! That was using SuSE 9.1. When you compare it against FC2, 1700 seconds, it's quite obvious that a properly compiled program can make or break your performance.
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toofastforyahuh
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-ptah-
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AlyM
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Joined: 02 Sep 2003
Posts: 62
Location: Edinburgh, Scotland
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| Posted: Wed Jul 14, 2004 2:13 pm Post subject: Re: AMD64 64bit vs 32 bit benchmarks on the web |
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I thought gcc 3.4.x was meant to give a fair performance boost over 3.3.x on amd64, but quite a few of your benchmarks showed performance regressions. Especially galaxyfg with showing a 20% performance decrease with gcc 3.4.0.
Worth filing a performance regression with the gcc team, or is this just a blip in your benchmarking? |
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Desti²
Tux's lil' helper
Joined: 06 Sep 2003
Posts: 127
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| Posted: Sat Jul 17, 2004 12:33 am Post subject: Re: AMD64 64bit vs 32 bit benchmarks on the web |
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| Gestalt73 wrote: | I thought I'd pass these along. I stumbled across them this morning on Slashdot. I'd been looking for comparisons between 32bit and 64bit performance:
[...]
Does anyone have any others to share?
Alan |
# GIMP 2.0.1 - x86 und AMD64 im Vergleich
http://planet64bit.de/modules/news/article.php?storyid=115  |
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Stolz
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Joined: 19 Oct 2003
Posts: 3028
Location: Hong Kong
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Gentoo on AMD64
