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RA Formeln
28. Januar 2012
1
Ausführungszeiten
1.1
Programmausführungszeit
T =
1.2
Ausführungszeit Befehl (Mittelwert)
Te =
1.3
N · CP I
F clock
I
CP I
=
N
F clock
Mittlereausführungszeit(Cache)
tA = ta1 − Hitrate + ta2 (1 − Hitrate)
2
Performance
2.1
Performance ohne Pipelining
PM IP S =
2.2
Performance mit Pipelining (best case)
F clock
CP Imin
Pmax =
3
F clock
CP I
Speicherkapazität
Kmem = 2m · n
m = Adresswortlänge n = Datenwortlänge
4
Speedup Berechnung
S(n) =
5
K1 · N
+ K2 (n − 1)
K1 ·N
n
Busbandbreite / Datenrate (PCI-BUS)
rD = B =
1
f clock · n
Z
RA Formeln.pdf (PDF, 105.08 KB)
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