Messages in this thread | | | Date | Thu, 17 Jul 1997 19:53:03 +0200 | From | Pavel Machek <> | Subject | Re: Linux on AMD K6 |
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> On Mon, 14 Jul 1997, yuri mironoff wrote: > > On Thu, 10 Jul 1997, Dan Hollis wrote: > > > CPU Dhrystones > > > ---------------------- ---------- > > > AMD K6/200 374838.4 > > > Pentium Pro 200 356929.4 > > What options are you compiling with? I get 416K for a 200 MHZ PPro. > > Aside from that - Dhrystones is a useless benchmark. Try lmbench or > > do a kernel build (serial and parallel) - now that would be interesting. > > Kernel build measures the disk and i/o subsystems more than it does the > CPU. Thus kernel builds are more useless than dhrystones. I'm only > interested in measuring the raw CPU power, not the speed of the > SCSI disks.
No. With 20Meg of ram, disk is almost never accessed when compiling kernel. Kernel compilations get some 95% of cpu... Well, question is if you want CPU performance, or CPU & memory performance. make of kernel tests the second one.
> I'm using the byte bench 2.0 benchmarks with default options, I don't > touch anything. It was compiled exactly the same on both the ppro/200 and > the K6. > > People might claim dhrystones are "useless", but unfortunately it does > seem to be a good indicator of speed, despite what people claim. > > E.g. we compared a pentium and a powerpc with dhrystones. People claimed > powerpc should be faster, but no matter what application we ran, it > wasn't. In fact, each application showed exactly the same speed as > dhrystone predicted.
-- I'm really pavel@atrey.karlin.mff.cuni.cz. Pavel Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).
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