Messages in this thread | | | From | (Larry McVoy) | Subject | Re: Interesting scheduling times - NOT | Date | Thu, 24 Sep 1998 09:38:37 -0600 |
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Richard Gooch <rgooch@atnf.csiro.au>: : > The issue is that Richard's variance is so high. : : On another set of lmbench runs (no low-priority processes), I got: : "size=0k ovr=6.23 : 2 5.12 : 2 3.97 : 2 3.96 : 2 3.94 : : yet a second later I got: : "size=0k ovr=6.23 : 2 5.12 : 2 5.12 : 2 5.13 : 2 4.35 : : so it's not hard to find a 30% variance in lmbench either.
That's weak. You'll be hard pressed to find a consistent variance in that benchmark. Go run it 10 times in a row and tell us what the variance is. I just did it and got 12%. On the other hand, you've been telling us all along that your tests varies 70-100% every run. If you had started out the conversation: I ran ten times and go one case that was off by a 100%, but the rest all nicely clustered around one point, I don't think anyone would have had an issue, now would they?
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