Messages in this thread | | | Date | Mon, 26 Dec 2005 00:33:13 +0000 | From | Pavel Machek <> | Subject | Moore's law (was Re: [patch 0/9] mutex subsystem, -V4) |
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Hi!
> Another example: Ingo's VFS stresstest which is hitting i_sem hard: it only > does ~8000 ops/sec on an 8-way, and it's an artificial microbenchmark which > is _designed_ to hit that lock hard. So if/when i_sem is converted to a > mutex, I figure that the benefits to ARM in that workload will be about a > 0.01% performance increase. ie: about two hours' worth of Moore's law in a > dopey microbenchmark.
:-) Expressing performance increases in Moore's hours seems like neat trick. OTOH I do not think it is valid any more. Single-threaded performance stopped increasing 2 years ago AFAICS. Plus people are pushing Linux onto smaller machines, that were unavailable 2 years ago.
Pavel -- Thanks, Sharp! - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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