Re: BogoMIPS doubling...

From: Daniel J Blueman (daniel.j.blueman@stud.umist.ac.uk)
Date: Sun Apr 02 2000 - 15:08:03 EST


Hi Alan!

> > Upon booting, the kernel prints 1120.67 BogoMIPS per processor, 2241.33
> > BogoMIPS total.
> > This is running on my Abit BP6, dual iCeleron 366s (running at 561Mhz).
> Sounds fine to me
It used to be ~1 BogoMIP per (x86 ISA) processor Mhz. Now, it's ~2.

I have dual 561Mhz processors, so a total of 1120 BogoMIPS makes sense with
previous kernels.

> > Is this issue known about? (it was occuring with certain processors a
few
> Its fine, its just a delay loop calibration and we changed the method
> used to calibrate it
The calculation seems much more stable, due to the TSC being used. I like
this.
Surely though, being 2x out would not be good for lots of user-land apps
using this as a {rough, simply} processor power measurement.

- Dan
__________________________
Daniel J Blueman
Undergraduate - BSc Computing Science
UMIST university - Manchester
Direct line: 0161 933 3569
Mobile: 07775 583766
Email: daniel.j.blueman@stud.umist.ac.uk
SMS: daniel.j.blueman@sms.genie.co.uk

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