Messages in this thread |  | | Date | Sun, 7 Jul 1996 01:12:25 +0200 (MET DST) | From | alex@darkstar ... | Subject | Re: NCR benchmarking |
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On Sat, 6 Jul 1996, Gerard Roudier wrote:
> IMHO, in order to get acceptables results, the file size must be at least 3 > times the main memory size. > > Can you try again your benchmark with a file size of about 200 MB.
Yes, of course, there should be about 300 megs free on the same drive.
> I get about 3.6 MB/s for input "per char" and 4.3 MB/s for block input > with my 2 years old IBM S12, 100MB file size and 32MB main memory. > I suspect these results to be wrong due to delayed cache flush that > Bonnie cannot see and that the both speed should be the same.
The IBM DPES-31080 isn't a very fast drive. In fact, it is slower than most modern EIDE drives, so the values I got from Bonnie are looking o.k. I'am not so interested in absolute numbers (because I already know, that the DPES is not fast as hell), I was more interested in comparing the two drivers on exactly the same hardware.
> You were not in the same conditions. > The effects of tagged queue depends on hard disk firmware. > Generally, performances are not affected or are a little increased under > Bonnie. With some HDs, performances are lower with tagged queue. > On the other hand, IMHO, bonnie benchmark is not a serious test for tagged > command queueing.
Well, I don't know anything about the firmware of this drive, but I will repeat the test with tagged queuing disabled. I'll send you the results with the results, I'll get from the 200 MB Bonnie tests.
What about some other benchmarks. I have the byte benchmarks here on my system. Is this suite more serious than Bonnie ?
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