Messages in this thread | | | Subject | Re: Efficient IPC mechanism on Linux | From | Shawn <> | Date | Wed, 10 Sep 2003 14:16:18 -0500 |
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On Wed, 2003-09-10 at 05:09, Luca Veraldi wrote: > > For fun do the measurement on a pIV cpu. You'll be surprised. > > The microcode "mark dirty" (which is NOT a btsl, it gets done when you do > a write > > memory access to the page content) result will be in the 2000 to 4000 > range I > > predict. > > I'm not responsible for microarchitecture designer stupidity. > If a simple STORE assembler instruction will eat up 4000 clock cycles, > as you say here, well, I think all we Computer Scientists can go home and > give it up now. Unfortunately you are responsible for working with the constructs reality has given you. Giving up is childish. Where there is a lose, there's a chance it was a tradeoff for a win elsewhere.
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