Performance-Zuwachs durch DualCore

fdsonne · 17.02.2007

So siehts derzeit bei mir aus, mit dem obersten System aus meiner Sig, aber nur mit einem Prozzi!
Dem 2. fehlt noch der Kühler!

King Bill · 17.02.2007

King Bill schrieb:
bei mir lüppt java nich....

windows 2003 server x64...

ich habe es doch geschaft

einfach eine kopie der java.exe in den system32 ordner kopieren

fdsonne · 17.02.2007

@King
oder in den Umbegungsvariablen den Java Installations-Pfad mit einbinden!
Sonst fehlt der Verweis auf den Ordner
So sollte es dann auch gehen!

King Bill · 17.02.2007

ja müsste auch funzen

hier mein ergebnis ^^

LuxxFred · 17.02.2007

Ich habe den Benchmark heute komplett überarbeitet. Der Umgang mit den Threads ist jetzt sehr viel dynamischer, die Anzahl zu verwendender Threads ist beliebig skalierbar.

Neue Version

Getestet werden jetzt 1-8 Threads. Bitte vor dem Benchmarken alle rechenintensiven Programme schliessen!

Die Ergebnisse des neuen Benchmarks auf MultiCore Prozessoren interessieren mich sehr, da ich nicht einmal sagen kann, ob mein neues Verfahren überhaupt effektiv ist. Also schonmal danke fürs Testen

King Bill · 18.02.2007

hmm sehr unübersichtlich :hmm:

ulukay · 18.02.2007

e6600@3300mhz

Code:

1 thread  average: 451 ms
2 threads average: 339 ms
3 threads average: 294 ms
4 threads average: 248 ms
5 threads average: 249 ms
6 threads average: 252 ms
7 threads average: 251 ms
8 threads average: 251 ms

1 thread  -> 2 threads: 32.72%
1 thread  -> 3 threads: 53.2%
1 thread  -> 4 threads: 81.24%
1 thread  -> 5 threads: 80.54%
1 thread  -> 6 threads: 78.97%
1 thread  -> 7 threads: 79.61%
1 thread  -> 8 threads: 79.46%
2 threads -> 3 threads: 15.43%
2 threads -> 4 threads: 36.56%
2 threads -> 5 threads: 36.03%
2 threads -> 6 threads: 34.85%
2 threads -> 7 threads: 35.33%
2 threads -> 8 threads: 35.21%
3 threads -> 4 threads: 18.3%
3 threads -> 5 threads: 17.85%
3 threads -> 6 threads: 16.82%
3 threads -> 7 threads: 17.24%
3 threads -> 8 threads: 17.14%
4 threads -> 5 threads: -0.38%
4 threads -> 6 threads: -1.25%
4 threads -> 7 threads: -0.9%
4 threads -> 8 threads: -0.98%
5 threads -> 6 threads: -0.87%
5 threads -> 7 threads: -0.52%
5 threads -> 8 threads: -0.6%
6 threads -> 7 threads: 0.36%
6 threads -> 8 threads: 0.27%
7 threads -> 8 threads: -0.08%

LuxxFred · 18.02.2007

King Bill schrieb:
hmm sehr unübersichtlich

Dafür kann man aus den dargestellten Informationen sehr viel ableiten, z.B. dass mehr als 4 Threads bei einem DualCore offenbar nichts mehr bringen (alle Zeilen ab "4 threads -> ..." haben Werte um 0% rum). Das Ergebnis für 3 Threads kann ich mir nicht erklären... Messfehler?

Aber insgesamt bin ich mit der Performancesteigerung von 75% (AMD) bzw. 80% (intel) sehr zufrieden, wenn man bedenkt, wieviel Overhead das Multithreading mit sich bringt.

Diese Werte sind mit den ~90% aus dem alten Benchmark nicht zu vergleichen, da ich dort beim Algorithmus ein wenig "geschummelt" habe. (Die Wahl des Pivot-Elements basierte auf der Annahme, dass jede Zahl von 1 bis 7500000 genau 1x vorkommt, wodurch die Liste genau in der Mitte geteilt wurde. Dadurch hatten alle Threads gleich viel zu tun.)

keith303 · 18.02.2007

bubblesort?

e6600@3.5Ghz

Code:

1 thread  average: 438 ms
2 threads average: 247 ms
3 threads average: 246 ms
4 threads average: 250 ms
5 threads average: 239 ms
6 threads average: 246 ms
7 threads average: 241 ms
8 threads average: 245 ms

1 thread  -> 2 threads: 77,08%
1 thread  -> 3 threads: 77,53%
1 thread  -> 4 threads: 75,24%
1 thread  -> 5 threads: 82,58%
1 thread  -> 6 threads: 77,86%
1 thread  -> 7 threads: 81,44%
1 thread  -> 8 threads: 78,84%
2 threads -> 3 threads: 0,25%
2 threads -> 4 threads: -1,04%
2 threads -> 5 threads: 3,11%
2 threads -> 6 threads: 0,44%
2 threads -> 7 threads: 2,46%
2 threads -> 8 threads: 0,99%
3 threads -> 4 threads: -1,29%
3 threads -> 5 threads: 2,84%
3 threads -> 6 threads: 0,19%
3 threads -> 7 threads: 2,2%
3 threads -> 8 threads: 0,74%
4 threads -> 5 threads: 4,19%
4 threads -> 6 threads: 1,5%
4 threads -> 7 threads: 3,54%
4 threads -> 8 threads: 2,05%
5 threads -> 6 threads: -2,58%
5 threads -> 7 threads: -0,62%
5 threads -> 8 threads: -2,05%
6 threads -> 7 threads: 2,01%
6 threads -> 8 threads: 0,55%
7 threads -> 8 threads: -1,43%

LuxxFred · 18.02.2007

keith303 schrieb:
bubblesort?

Quicksort.

ulukay · 19.02.2007

~> jre1.5.0_11/bin/java -version
java version "1.5.0_11"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_11-b03)
Java HotSpot(TM) Server VM (build 1.5.0_11-b03, mixed mode)

~> jre1.5.0_11/bin/java -jar multicore2230.jar
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)

unter linux tuts ned so wirklich - wollte nen quad opteron testen

fdsonne · 19.02.2007

ähm du brauchst glaube ich ne neuere Java-Version, soweit ich das verstanden habe!

@LuxxFred
wie wärs wenn du auch so ne übersicht machst, ähnlich der anderen Benches hier!
und die neueste Version immer im ersten Thread einfügst, so wies jetzt ist wirds sehr schnell unübersichtlich finde ich!
dann ggf. noch ne Forderung zu der Darstellung des Ergebnisses!

Sowas wie Nicname | CPU+Takt | RAM+Takt+Latenzen | usw. | Link zu Screenshot (Eingabeaufforderung mit Ergebnissen+CPU-Z)

oder so ähnlich!
So könnte man zum Beispiel ne Übersicht schaffen wie stark sich welche Leistungseinstellungen auswirken!
Sozusagen Leistungsunterschied zwischen DualCore und Dual CPU System
oder wie Stark wirkt sich der Speichertakt / die Latenzen beim A64 auf dessen Leistung aus (bei gleichem CPU Takt)

ulukay · 19.02.2007

fdsonne schrieb:
ähm du brauchst glaube ich ne neuere Java-Version, soweit ich das verstanden habe!

is die neueste

hab zuerst -jar vergessn, mit -jar kommt ein anderer error

fdsonne · 19.02.2007

1.5.0_11 ist nicht die neueste!
Das ist Java Runtime Environment Version 5 wenn mich nicht alles täuscht!

es gibt aber schon Version 6!
guckst du hier!

installier mal das und probier mal!

ulukay · 19.02.2007

peinlich

2x Opteron 275 - also 4 Kerne zu je 2200Mhz und 1MB L2 Cache

Code:

1 thread  average: 609 ms
2 threads average: 430 ms
3 threads average: 233 ms
4 threads average: 241 ms
5 threads average: 235 ms
6 threads average: 213 ms
7 threads average: 209 ms
8 threads average: 217 ms

1 thread  -> 2 threads: 41.43%
1 thread  -> 3 threads: 160.73%
1 thread  -> 4 threads: 152.41%
1 thread  -> 5 threads: 158.42%
1 thread  -> 6 threads: 184.77%
1 thread  -> 7 threads: 190.63%
1 thread  -> 8 threads: 180.47%
2 threads -> 3 threads: 84.35%
2 threads -> 4 threads: 78.47%
2 threads -> 5 threads: 82.72%
2 threads -> 6 threads: 101.36%
2 threads -> 7 threads: 105.5%
2 threads -> 8 threads: 98.31%
3 threads -> 4 threads: -3.19%
3 threads -> 5 threads: -0.88%
3 threads -> 6 threads: 9.22%
3 threads -> 7 threads: 11.47%
3 threads -> 8 threads: 7.57%
4 threads -> 5 threads: 2.38%
4 threads -> 6 threads: 12.82%
4 threads -> 7 threads: 15.14%
4 threads -> 8 threads: 11.12%
5 threads -> 6 threads: 10.2%
5 threads -> 7 threads: 12.46%
5 threads -> 8 threads: 8.53%
6 threads -> 7 threads: 2.06%
6 threads -> 8 threads: -1.51%
7 threads -> 8 threads: -3.5%

der server is halt teilw. unter last - eventuell test ichs nochmal heut abend wenn ich ned drauf vergesse
wie groß sind denn die listen? eventuell limitiert da schon das speicherinterface
Hinzugefügter Post:
ein E6400 @ 2560mhz - ebenfalls linux

Code:

1 thread  average: 559 ms
2 threads average: 384 ms
3 threads average: 333 ms
4 threads average: 327 ms
5 threads average: 336 ms
6 threads average: 314 ms
7 threads average: 311 ms
8 threads average: 314 ms

1 thread  -> 2 threads: 45.33%
1 thread  -> 3 threads: 67.47%
1 thread  -> 4 threads: 70.91%
1 thread  -> 5 threads: 66.26%
1 thread  -> 6 threads: 77.8%
1 thread  -> 7 threads: 79.73%
1 thread  -> 8 threads: 77.76%
2 threads -> 3 threads: 15.24%
2 threads -> 4 threads: 17.6%
2 threads -> 5 threads: 14.4%
2 threads -> 6 threads: 22.34%
2 threads -> 7 threads: 23.67%
2 threads -> 8 threads: 22.31%
3 threads -> 4 threads: 2.05%
3 threads -> 5 threads: -0.73%
3 threads -> 6 threads: 6.17%
3 threads -> 7 threads: 7.32%
3 threads -> 8 threads: 6.14%
4 threads -> 5 threads: -2.72%
4 threads -> 6 threads: 4.03%
4 threads -> 7 threads: 5.16%
4 threads -> 8 threads: 4.01%
5 threads -> 6 threads: 6.94%
5 threads -> 7 threads: 8.1%
5 threads -> 8 threads: 6.92%
6 threads -> 7 threads: 1.08%
6 threads -> 8 threads: -0.03%
7 threads -> 8 threads: -1.1%

fdsonne · 19.02.2007

sieht etwas durchwachsen aus, sollte aber daran liegen das der Server wohl teilweise belastet wird!
So wie ich das sehe weil manche Werte nicht ganz nachvollziehbar sind, denn von 3 zu 4 Threads nen Leistungsverlusst auf nem System mit 4 Kernen zu haben sagt wohl das da noch ne andere Anwendung Leistung frisst!

ulukay · 19.02.2007

jop wird so sein

hier ein opteron 170 @ 2250

Code:

1 thread  average: 705 ms
2 threads average: 461 ms
3 threads average: 380 ms
4 threads average: 389 ms
5 threads average: 386 ms
6 threads average: 388 ms
7 threads average: 391 ms
8 threads average: 392 ms

1 thread  -> 2 threads: 52.87%
1 thread  -> 3 threads: 85.21%
1 thread  -> 4 threads: 81.22%
1 thread  -> 5 threads: 82.64%
1 thread  -> 6 threads: 81.31%
1 thread  -> 7 threads: 80%
1 thread  -> 8 threads: 79.67%
2 threads -> 3 threads: 21.15%
2 threads -> 4 threads: 18.55%
2 threads -> 5 threads: 19.48%
2 threads -> 6 threads: 18.61%
2 threads -> 7 threads: 17.75%
2 threads -> 8 threads: 17.53%
3 threads -> 4 threads: -2.15%
3 threads -> 5 threads: -1.38%
3 threads -> 6 threads: -2.1%
3 threads -> 7 threads: -2.81%
3 threads -> 8 threads: -2.99%
4 threads -> 5 threads: 0.78%
4 threads -> 6 threads: 0.05%
4 threads -> 7 threads: -0.68%
4 threads -> 8 threads: -0.86%
5 threads -> 6 threads: -0.73%
5 threads -> 7 threads: -1.45%
5 threads -> 8 threads: -1.63%
6 threads -> 7 threads: -0.73%
6 threads -> 8 threads: -0.91%
7 threads -> 8 threads: -0.18%

fdsonne · 19.02.2007

hier mal Ergebniss von AM2 3500+ | 1GB DDR2 533MHz CL4 | FSC Esprimo E5615

Code:

multicore benchmark 070217-2230

1 thread : 749 ms
2 threads: 790 ms
3 threads: 788 ms
4 threads: 781 ms
5 threads: 795 ms
6 threads: 791 ms
7 threads: 789 ms
8 threads: 785 ms

1 thread : 740 ms
2 threads: 784 ms
3 threads: 801 ms
4 threads: 791 ms
5 threads: 791 ms
6 threads: 791 ms
7 threads: 796 ms
8 threads: 793 ms

1 thread : 744 ms
2 threads: 785 ms
3 threads: 784 ms
4 threads: 792 ms
5 threads: 787 ms
6 threads: 787 ms
7 threads: 786 ms
8 threads: 795 ms

1 thread : 746 ms
2 threads: 792 ms
3 threads: 784 ms
4 threads: 785 ms
5 threads: 787 ms
6 threads: 788 ms
7 threads: 804 ms
8 threads: 789 ms

1 thread : 739 ms
2 threads: 792 ms
3 threads: 789 ms
4 threads: 790 ms
5 threads: 789 ms
6 threads: 778 ms
7 threads: 788 ms
8 threads: 798 ms

1 thread  average: 744 ms
2 threads average: 788 ms
3 threads average: 789 ms
4 threads average: 788 ms
5 threads average: 790 ms
6 threads average: 787 ms
7 threads average: 793 ms
8 threads average: 792 ms

1 thread  -> 2 threads: -5,69%
1 thread  -> 3 threads: -5,74%
1 thread  -> 4 threads: -5,6%
1 thread  -> 5 threads: -5,84%
1 thread  -> 6 threads: -5,54%
1 thread  -> 7 threads: -6,18%
1 thread  -> 8 threads: -6,11%
2 threads -> 3 threads: -0,05%
2 threads -> 4 threads: 0,1%
2 threads -> 5 threads: -0,16%
2 threads -> 6 threads: 0,17%
2 threads -> 7 threads: -0,51%
2 threads -> 8 threads: -0,44%
3 threads -> 4 threads: 0,15%
3 threads -> 5 threads: -0,11%
3 threads -> 6 threads: 0,22%
3 threads -> 7 threads: -0,47%
3 threads -> 8 threads: -0,4%
4 threads -> 5 threads: -0,26%
4 threads -> 6 threads: 0,07%
4 threads -> 7 threads: -0,62%
4 threads -> 8 threads: -0,55%
5 threads -> 6 threads: 0,32%
5 threads -> 7 threads: -0,36%
5 threads -> 8 threads: -0,29%
6 threads -> 7 threads: -0,68%
6 threads -> 8 threads: -0,61%
7 threads -> 8 threads: 0,07%

Und hier als nächstes ein P4 3,0GHz Sockel 775 | 512MB DDR2 533MHz CL5 | FSC Esprimo E5700

Code:

multicore benchmark 070217-2230

1 thread : 890 ms
2 threads: 1257 ms
3 threads: 646 ms
4 threads: 639 ms
5 threads: 642 ms
6 threads: 649 ms
7 threads: 664 ms
8 threads: 636 ms

1 thread : 890 ms
2 threads: 635 ms
3 threads: 641 ms
4 threads: 636 ms
5 threads: 659 ms
6 threads: 639 ms
7 threads: 639 ms
8 threads: 651 ms

1 thread : 883 ms
2 threads: 648 ms
3 threads: 635 ms
4 threads: 643 ms
5 threads: 636 ms
6 threads: 635 ms
7 threads: 636 ms
8 threads: 635 ms

1 thread : 883 ms
2 threads: 640 ms
3 threads: 652 ms
4 threads: 635 ms
5 threads: 642 ms
6 threads: 657 ms
7 threads: 634 ms
8 threads: 654 ms

1 thread : 896 ms
2 threads: 1268 ms
3 threads: 648 ms
4 threads: 652 ms
5 threads: 635 ms
6 threads: 649 ms
7 threads: 653 ms
8 threads: 637 ms

1 thread  average: 889 ms
2 threads average: 890 ms
3 threads average: 644 ms
4 threads average: 641 ms
5 threads average: 643 ms
6 threads average: 646 ms
7 threads average: 645 ms
8 threads average: 643 ms

1 thread  -> 2 threads: -0,13%
1 thread  -> 3 threads: 37,87%
1 thread  -> 4 threads: 38,58%
1 thread  -> 5 threads: 38,24%
1 thread  -> 6 threads: 37,56%
1 thread  -> 7 threads: 37,69%
1 thread  -> 8 threads: 38,23%
2 threads -> 3 threads: 38,05%
2 threads -> 4 threads: 38,76%
2 threads -> 5 threads: 38,42%
2 threads -> 6 threads: 37,74%
2 threads -> 7 threads: 37,87%
2 threads -> 8 threads: 38,41%
3 threads -> 4 threads: 0,51%
3 threads -> 5 threads: 0,27%
3 threads -> 6 threads: -0,22%
3 threads -> 7 threads: -0,13%
3 threads -> 8 threads: 0,26%
4 threads -> 5 threads: -0,24%
4 threads -> 6 threads: -0,73%
4 threads -> 7 threads: -0,64%
4 threads -> 8 threads: -0,25%
5 threads -> 6 threads: -0,49%
5 threads -> 7 threads: -0,4%
5 threads -> 8 threads: -0,01%
6 threads -> 7 threads: 0,09%
6 threads -> 8 threads: 0,49%
7 threads -> 8 threads: 0,39%

EDIT:
Das P4 System finde ich interessant, warum braucht der mit 3 und mehr Threads weniger Zeit als mit 1 bzw. 2 Threads???
komisch, ...

LuxxFred · 19.02.2007

ulukay schrieb:
1 thread -> 7 threads: 190.63%

Fast 3x so schnell mit 4 Kernen, sehr schön. Aber wie schon mehrfach gesagt, mit Last im Hintergrund Benchen ist Quatsch. Ich hoffe, man kann ohne Last auf 250% kommen, wahrscheinlich bereits ab 4 Threads.

wie groß sind denn die listen?

Es wird eine unsortierte Liste mit 3,5 Milliarden int-Werten permanent im Speicher gehalten. Sortiert wird dann auf einer Kopie. Eine weitere Kopie der mit einem Thread sortierten Liste wird auch noch im Speicher gehalten, um sie mit den Multithreaded sortierten Listen zu vergleichen. Man will ja nicht nur Effizienz, sondern auch Korrektheit

Insgesamt müssen also 3,5*4*3 = 42 MB im Speicher gehalten werden, wovon während des eigentlichen Benchmarkens allerdings nur 3,5*4 = 14 MB verwendet werden.

Die 42 wundert mich gerade ein bischen, weil ich immer dachte, dass Java per default nur 32 MB Speicher reserviert... merkwürdig.

ulukay · 19.02.2007

interessant - nu liegt keine last an und ich konn nedmal mehr auf 190% X-D

Code:

1 thread  average: 592 ms
2 threads average: 455 ms
3 threads average: 294 ms
4 threads average: 237 ms
5 threads average: 237 ms
6 threads average: 220 ms
7 threads average: 225 ms
8 threads average: 231 ms

1 thread  -> 2 threads: 30.18%
1 thread  -> 3 threads: 101.06%
1 thread  -> 4 threads: 149.39%
1 thread  -> 5 threads: 150.07%
1 thread  -> 6 threads: 169.07%
1 thread  -> 7 threads: 163.14%
1 thread  -> 8 threads: 156.51%
2 threads -> 3 threads: 54.44%
2 threads -> 4 threads: 91.56%
2 threads -> 5 threads: 92.08%
2 threads -> 6 threads: 106.69%
2 threads -> 7 threads: 102.13%
2 threads -> 8 threads: 97.03%
3 threads -> 4 threads: 24.03%
3 threads -> 5 threads: 24.37%
3 threads -> 6 threads: 33.83%
3 threads -> 7 threads: 30.88%
3 threads -> 8 threads: 27.58%
4 threads -> 5 threads: 0.27%
4 threads -> 6 threads: 7.89%
4 threads -> 7 threads: 5.52%
4 threads -> 8 threads: 2.86%
5 threads -> 6 threads: 7.6%
5 threads -> 7 threads: 5.23%
5 threads -> 8 threads: 2.58%
6 threads -> 7 threads: -2.2%
6 threads -> 8 threads: -4.67%
7 threads -> 8 threads: -2.52%

GamerPC · 19.02.2007

so, mit meinem P4 650 HT. Könnt ihr mir mal sagen ob das in Ordnung ist?(bzw. gut für den Prozessor?)

PHP:

C:\>java -jar multicore2230.jar
multicore benchmark 070217-2230

1 thread : 859 ms
2 threads: 627 ms
3 threads: 610 ms
4 threads: 622 ms
5 threads: 597 ms
6 threads: 586 ms
7 threads: 569 ms
8 threads: 577 ms

1 thread : 799 ms
2 threads: 570 ms
3 threads: 576 ms
4 threads: 577 ms
5 threads: 581 ms
6 threads: 580 ms
7 threads: 561 ms
8 threads: 581 ms

1 thread : 796 ms
2 threads: 568 ms
3 threads: 573 ms
4 threads: 573 ms
5 threads: 579 ms
6 threads: 578 ms
7 threads: 587 ms
8 threads: 586 ms

1 thread : 792 ms
2 threads: 575 ms
3 threads: 586 ms
4 threads: 570 ms
5 threads: 580 ms
6 threads: 571 ms
7 threads: 587 ms
8 threads: 570 ms

1 thread : 788 ms
2 threads: 592 ms
3 threads: 577 ms
4 threads: 563 ms
5 threads: 567 ms
6 threads: 588 ms
7 threads: 567 ms
8 threads: 570 ms

1 thread  average: 807 ms
2 threads average: 586 ms
3 threads average: 584 ms
4 threads average: 581 ms
5 threads average: 581 ms
6 threads average: 581 ms
7 threads average: 574 ms
8 threads average: 577 ms

1 thread  -> 2 threads: 37,62%
1 thread  -> 3 threads: 38,06%
1 thread  -> 4 threads: 38,85%
1 thread  -> 5 threads: 38,88%
1 thread  -> 6 threads: 38,96%
1 thread  -> 7 threads: 40,53%
1 thread  -> 8 threads: 39,82%
2 threads -> 3 threads: 0,32%
2 threads -> 4 threads: 0,9%
2 threads -> 5 threads: 0,92%
2 threads -> 6 threads: 0,98%
2 threads -> 7 threads: 2,12%
2 threads -> 8 threads: 1,6%
3 threads -> 4 threads: 0,58%
3 threads -> 5 threads: 0,59%
3 threads -> 6 threads: 0,66%
3 threads -> 7 threads: 1,79%
3 threads -> 8 threads: 1,27%
4 threads -> 5 threads: 0,02%
4 threads -> 6 threads: 0,08%
4 threads -> 7 threads: 1,21%
4 threads -> 8 threads: 0,7%
5 threads -> 6 threads: 0,06%
5 threads -> 7 threads: 1,19%
5 threads -> 8 threads: 0,68%
6 threads -> 7 threads: 1,13%
6 threads -> 8 threads: 0,61%
7 threads -> 8 threads: -0,51%

C:\>

LuxxFred · 21.02.2007

40% Zuwachs ist für einen SingleCore Prozessor ziemlich gut.

fdsonne · 21.02.2007

Liegt wohl an dem HT des P4!

King Bill · 23.02.2007

wow hätt ich jetzt auch nicht gedacht das HTT soviel ausmacht

LuxxFred · 01.03.2007

Endlich kann ich meinen Multicore Benchmark selber auf einem DualCore testen

(E4300 @ stock)

Code:

1 thread  average: 836 ms
2 threads average: 461 ms
3 threads average: 456 ms
4 threads average: 454 ms
5 threads average: 454 ms
6 threads average: 454 ms
7 threads average: 453 ms
8 threads average: 454 ms

1 thread  -> 2 threads: 81,44%
1 thread  -> 3 threads: 83,17%
1 thread  -> 4 threads: 84,11%
1 thread  -> 5 threads: 83,94%
1 thread  -> 6 threads: 84,23%
1 thread  -> 7 threads: 84,51%
1 thread  -> 8 threads: 84,14%

fdsonne · 01.03.2007

kann vllt jemand mit nem QX6700 Quadcore Intel diesen mal @ Std. Takt mit dem Bench testen???
Würde diese Werte gern mal mit meinem Sys vergleichen!

LuxxFred · 01.03.2007

E4300 @ 3 GHz ist 55% schneller als @stock :banana:

Code:

1 thread  average: 509 ms
2 threads average: 283 ms
3 threads average: 280 ms
4 threads average: 284 ms
5 threads average: 288 ms
6 threads average: 286 ms
7 threads average: 284 ms
8 threads average: 283 ms

1 thread  -> 2 threads: 79,27%
1 thread  -> 3 threads: 81,23%
1 thread  -> 4 threads: 78,94%
1 thread  -> 5 threads: 76,57%
1 thread  -> 6 threads: 77,93%
1 thread  -> 7 threads: 78,97%
1 thread  -> 8 threads: 79,87%

ulukay · 05.06.2007

ka aber so gut skaliert das programm nicht ...
das isn dual-quadcore xeon!

Code:

test@test01:~> jre1.6.0_01/bin/java -jar multicore2230.jar 
multicore benchmark 070217-2230

1 thread : 919 ms
2 threads: 1033 ms
3 threads: 367 ms
4 threads: 316 ms
5 threads: 372 ms
6 threads: 291 ms
7 threads: 324 ms
8 threads: 293 ms

1 thread : 920 ms
2 threads: 482 ms
3 threads: 363 ms
4 threads: 305 ms
5 threads: 315 ms
6 threads: 287 ms
7 threads: 320 ms
8 threads: 319 ms

1 thread : 919 ms
2 threads: 481 ms
3 threads: 353 ms
4 threads: 318 ms
5 threads: 315 ms
6 threads: 299 ms
7 threads: 308 ms
8 threads: 349 ms

1 thread : 922 ms
2 threads: 482 ms
3 threads: 349 ms
4 threads: 314 ms
5 threads: 290 ms
6 threads: 301 ms
7 threads: 338 ms
8 threads: 309 ms

1 thread : 919 ms
2 threads: 481 ms
3 threads: 358 ms
4 threads: 312 ms
5 threads: 298 ms
6 threads: 279 ms
7 threads: 316 ms
8 threads: 328 ms

1 thread  average: 920 ms
2 threads average: 592 ms
3 threads average: 358 ms
4 threads average: 313 ms
5 threads average: 318 ms
6 threads average: 291 ms
7 threads average: 321 ms
8 threads average: 320 ms

1 thread  -> 2 threads: 55.34%
1 thread  -> 3 threads: 156.61%
1 thread  -> 4 threads: 193.6%
1 thread  -> 5 threads: 188.76%
1 thread  -> 6 threads: 215.33%
1 thread  -> 7 threads: 186.05%
1 thread  -> 8 threads: 187.38%
2 threads -> 3 threads: 65.19%
2 threads -> 4 threads: 89%
2 threads -> 5 threads: 85.89%
2 threads -> 6 threads: 102.99%
2 threads -> 7 threads: 84.14%
2 threads -> 8 threads: 85%
3 threads -> 4 threads: 14.42%
3 threads -> 5 threads: 12.53%
3 threads -> 6 threads: 22.88%
3 threads -> 7 threads: 11.47%
3 threads -> 8 threads: 11.99%
4 threads -> 5 threads: -1.65%
4 threads -> 6 threads: 7.4%
4 threads -> 7 threads: -2.57%
4 threads -> 8 threads: -2.12%
5 threads -> 6 threads: 9.2%
5 threads -> 7 threads: -0.94%
5 threads -> 8 threads: -0.48%
6 threads -> 7 threads: -9.29%
6 threads -> 8 threads: -8.86%
7 threads -> 8 threads: 0.47%

Performance-Zuwachs durch DualCore

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