Date: Wed, 24 Sep 1997 23:11:58 -0600 From: "Justin T. Gibbs" <gibbs@plutotech.com> To: Finn Arne Gangstad <finnag@guardian.no> Cc: Archie Cobbs <archie@whistle.com>, current@FreeBSD.ORG Subject: Re: timeout management (was: Re: cvs commit: ...) Message-ID: <199709250512.XAA19962@pluto.plutotech.com> In-Reply-To: Your message of "Thu, 25 Sep 1997 05:39:49 %2B0200." <Pine.LNX.3.95.970925053231.28877A-100000@lucifer.guardian.no>
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>Have you guys looked at the timer code in Linux? It basically is a small >variation of this, which makes all operations O(1) for almost >every timer. It looks like a 5 level hierarchical timing wheel to me. FreeBSD currently has a one level timing wheel. Cascade_timers should enable interrupts at deterministic intervals so that interrupts are defered a deterministic amount of time. > >- Finn Arne > -- Justin T. Gibbs =========================================== FreeBSD: Turning PCs into workstations ===========================================
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