Hvad betyder BogoMIPS ?

http://catb.org/~esr/jargon/html/B/BogoMIPS.html

Morten

Det er egentlig mest en joke som du ikke skal tage særlig højtideligt. BogoMIPS er 2 gange hastigheden af din cpu i mhz, ellers også er det halvdelen. Kan ikke huske det, men det betyder.. ingenting.

strych9 -> hvis du så på mit link så ville du se at det er " The number of million times a second a processor can do absolutely nothing"... det bliver brugt i Linux til nogle forskellige timing-loops...

se følgende citat
---
`MIPS is short for Millions of Instructions Per Second. It is a measure for the computation speed of a program. Like most such measures, it is more often abused than used properly (it is very difficult to justly compare MIPS for different kinds of computers).

BogoMips are Linus's invention. The kernel (or was it a device driver?) needs a timing loop (the time is too short and/or needs to be too exact for a non-busy-loop method of waiting), which must be calibrated to the processor speed of the machine. Hence, the kernel measures at boot time how fast a certain kind of busy loop runs on a computer. "Bogo" comes from "bogus", i.e, something which is a fake. Hence, the BogoMips value gives some indication of the processor speed, but it is way too unscientific to be called anything but BogoMips.

The reasons (there are two) it is printed during boot-up is that a) it is slightly useful for debugging and for checking that the computers caches and turbo button work, and b) Linus loves to chuckle when he sees confused people on the news.'
---

Morten

PS, du kan aflæse dit BogoMIPS tal med 'cat /proc/cpuinfo' - den nederste linie

Morten

den bedste definition kommer fra Eric Raymon (vist nok):

The number of million times a second a processor can do
absolutely nothing.

dough ... hvis jeg så kunne finde ud af at læse indenad så ville jeg nok have set at det stod der en gang.

mfalck -> tja... det jeg linkede (Eric S. Raymond = ESR = Vedlige holder af The Jargon) til og det jeg citerede ;) men sådan går det for de bedste... ;)