Date: Sun, 05 Mar 2006 11:18:08 +0000 From: Poul-Henning Kamp <phk@phk.freebsd.dk> To: arch@freebsd.org Subject: wakeup idea... Message-ID: <35339.1141557488@critter.freebsd.dk>
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Here is a possibly stupid idea. Historically sleep/wakeup have happened on a pointer which was just a magic number. In many cases, this pointer is actually a relevant datastructure. Would it possibly be an optimization to make a variant of the sleep/wakeup calls where the pointer points to an integer type which contains non-zero if anybody is actually sleeping on that address ? Anybody up for a quick prototype ? -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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