Messages in this thread | | | Subject | Re: [2.4.17/18pre] VM and swap - it's really unusable | From | Robert Love <> | Date | 21 Jan 2002 17:26:17 -0500 |
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On Mon, 2002-01-21 at 15:52, Marcelo Tosatti wrote:
> > I guess the point is, everyone argues preemption is detrimental to > > throughput. I'm not going to argue that we aren't adding complexity, > > because clearly we are. But now we have tests showing throughput is > > improved and people still argue. I've seen the same behavior under > > bonnie, timing kernel compiles, etc ... > > Sure, you've seen it. But _why_ it happens ? > > That is the point.
Daniel just reiterated it, but I suspect we better multitask a mix of tasks. I/O-bound tasks that are woken can be run quicker and thus throughput increases.
I'm not trying to tout preempt-kernel as a throughput solution. I think it is a neat and promising side-note to the patch, and one that benchmarks are correlating. Ignore it as a statistical error and consider throughput untouched if you want.
Robert Love
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