Sun Studio 12 patch performance improvements quantified for Core2Duo


My previous blog pointed at the first available Sun Studio patch. It mentioned that there were performance improvements for the Core2Duo architecture beyond what was in the released product.
This one quantifies the improvements we're seeing on SPECfp2000 (52%) and SPECfp2006 (34%). There are small improvements (0-3%) on SPECint2006  and 1-4% on SPECint2000 as well, but they are not as noteworthy. The system used here is a whitebox, 2 CPU, 4core 2.66GHz x5355 based system with 4GB memory. This run was a purely a comparative run and not done for a SPEC submission, so these arent official SPEC numbers (they are not numbers, anyway) but SPEC estimates, in that regard.

Benchmark: SPECfp 2000
%Change (over Studio12 FCS)
wupwise
30.3
swim
83.23
mgrid
39.10
applu
80.92
mesa
3.52
galgel
172.86
art
130.83
equake
14.05
facerec
2.44
ammp
65.74
lucas
13.86
fma3d
36.98
sixtrack
96.94
apsi
50.50
Overall Geo Mean
51.99

Benchmark: SPECfp 2006
%Change over Studio 12 FCS
410.bwaves
10.05
416.gamess
50.26
433.milc
12.99
434.zeusmp
50.34
435.gromacs
21.24
436.cactusADM
57.82
437.leslie3d
32.10
444.namd
62.20
447.dealII
9.00
450.soplex
4.58
453.povray
13.38
454.calculix
166.38
459.GemsFDTD
24.79
465.tonto
41.75
470.lbm
12.27
481.wrf
3.00
482.sphinx3
18.75
Overall Geo Mean
34.55

Now, you know, why I recommended that if you're using Sun Studio 12 for Woodcrest, Clovertown (Core2Duo) systems, then you MUST get the new patch.

Comments:

Planning to submit new results to the offical SPEC site??

Posted by Grid on August 21, 2007 at 10:10 PM PDT #

Theres a separate group in Sun which does this. Those announcements are usually timed around new product introductions (ie. chip revs in system, etc)
<br>
Besides, I dont know if these numbers are World Records or not. We've had about 25+ of these announcements in the past year, but this hasnt been that type of a run.
<br>
The intention behind this blog was simple: if you're using Studio 12 and want to use it on Woodcrest or Clovertown boxes and have FP-style code, you \*definitely\* want to get the new patch. It also closes the FP gap (and in sometimes surpasses others) on the Core2Duo architecture with other compilers.
<br>
Many of Sun's customers or potential systems customers are actively looking for validation on how well Sun is doing- or leading- with new Intel chips (blades are available right now) and this data is for them as well. IMO, Sun considers performance a differentiator on these boxes.

Posted by Vijay Tatkar on August 22, 2007 at 07:19 AM PDT #

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I have worked with Sun and Oracle for 25 years now; in compilers and tools organization for most of these years followed by a couple of years in Cloud Computing. I am now in ISV Engineering, where our primary task is to improve synergy between Oracle Sun Systems and our rich ISV ecosystem

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