Messages in this thread | | | From | (Alan Cox) | Subject | Re: Problems with unknown PCI devices (solution) | Date | Sat, 15 Nov 1997 15:39:27 +0000 (GMT) |
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> UMC8886 - bogomips will report as the clockrate without the multiplier, > usually 10MHz over. 50MHz reports as 50 to 60 bogomips. This > varies wildly from boot to boot.
That is bad bad news. The Linux bogomips is a straight and honest performance loop check. If that is varying wildly then I would have to assume your real system performance does likewise.
> UMC8887 - bogomips will generally report as the clockrate with multiplier, > minus the multipler/~2. So, a board running at 150MHz will > report back between 109 bogomips and 120 bogomips. A board at > 133MHz (66*2) will report back between 90 and 100 bogomips. This > stays about the same with maybe 2 or 3 bogomips of difference at > each boot.
That sounds fairly sane. On this board at least you are getting consistent benchmarking reports.
Alan
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