Messages in this thread | | | Date | Tue, 12 Mar 1996 22:40:22 -0600 (CST) | From | lilo <> | Subject | Re: Weird bogomips problem |
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> On Sun, 10 Mar 1996, David C. Niemi wrote: > > > My wife's machine registers only 1/10th as many bogomips as it should > > while booting. It is a 486 DX2-66 VLB system with 256 KB secondary cache > > and 8 MB RAM. What is really strange is that the turbo button really *is* > > on, and other benchmarks look normal on this machine, including dhrystone, > > floating point, and one that measures bandwidth to main memory. Does > > anyone have an idea of what could be wrong that would cause it to have > > 3.08 Bogomips instead of 33?
I can report to whoever made the suggestion, I changed the write caching on my motherboard from ``writeback'' to ``write-through'', and as a result, find in /proc/cpuinfo:
BogoMips : 39.93
And the classic and portable BogoMips runs produce, respectively:
Classic Calibrating delay loop.. ok - 31.65 BogoMips
Portable Calibrating delay loop.. ok - 39.70 BogoMips
As you can see, all is well. It'll be interesting to see if this has any effect whatsover on processing, and it may not---but you'd think that having any timing loops faster by over a factor of ten (2.66 --> 39.70) would have somewhat a negative effect on processing.... Hi, ho, if I see anything interesting I'll let you know.
Thanks again all! :)
:) lilo
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