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    SubjectRe: and nicer too - Re: [PATCH] epoll more scalable than poll
    On Tue, 29 Oct 2002, Martin Waitz wrote:

    > hi :)
    > On Tue, Oct 29, 2002 at 04:19:23PM +0100, bert hubert wrote:
    > > It is edge based instead of level based -
    > seems i have to look closer at your papers/code
    > what is the motivation to make it edge based?

    You have two ways to know if "something" changed. You call everyone each
    time and you ask him if his changed, or you call everyone one time by
    saying "call me when you're changed". It's behind the "call me when you're
    changed" phrase that lays the concept of edge triggered APIs. So, pretty
    evidently, the answer to your question is : efficency.

    - Davide

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