Messages in this thread | | | Date | Tue, 29 Jun 1999 21:54:08 +0200 (CEST) | From | Ingo Molnar <> | Subject | Re: Dual Ethernet Slowness Causing Lousy Benchmarks? (was: A very informative benchmark.) |
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On Tue, 29 Jun 1999, Jordan Mendelson wrote:
> It seems to me that all the benchmarks used dual ethernet controllers > when they were benched against NT, and that's when the major degredation > showed up in performance (at least that's what this C'T article > suggests).
if by 'major degradation' you mean 'it can only deliver 1500 hits/sec', then yes. I mean, it must suck to be an OS that can serve only a meakly 129 million web pages per day on a single box ;)
seriously, there is absolutely no 'major degradation' [i have the newest c't issue in front of me], it's just that we do not scale too well compared to 1-CPU performance (only 30-40% improvement with 4 CPUs).
Such nonscaling is absolutely unacceptable to have around - so David S. Miller has SMP-scaled the networking code in 2.3 already - on my box and 2.3.9 TCP bandwith scales almost linearly on localhost - it shows almost no scaling on 2.2.10. (i do not have 4 100mbit ethernet connections - yet)
-- mingo
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