Date: Fri, 28 Oct 2005 22:09:31 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: John-Mark Gurney <gurney_j@resnet.uoregon.edu> Cc: current@freebsd.org Subject: Re: Timers and timing, was: MySQL Performance 6.0rc1 Message-ID: <35138.1130530171@critter.freebsd.dk> In-Reply-To: Your message of "Fri, 28 Oct 2005 13:00:07 PDT." <20051028200007.GP4115@funkthat.com>
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In message <20051028200007.GP4115@funkthat.com>, John-Mark Gurney writes: >I was quite impressed by the speed up using the TSC over ACPI-fast... The TSC is in essence a CPU register/counter which lives inside the clock multiplier whereas the ACPI is an I/O port off somewhere in PCI space on some bridge or other. -- 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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