Re: Scheduler fixes for hyperthreading

From: Bruce M Simpson (bms_at_spc.org)
Date: 05/22/05

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    Date: Sun, 22 May 2005 03:59:15 +0100
To: Stephan Uphoff <ups@tree.com>

    On Sat, May 21, 2005 at 10:44:25PM -0400, Stephan Uphoff wrote:
    > Beside benchmarking - is there any other real use for RDTSC ?
    > Is there any use of RDTSC that system requiring the security cannot live
    > without? (We could even try to emulate the instruction if we really need
    > to)

    A number of ports use RDTSC for high-resolution timing. The most obvious
    examples being machine emulators mostly used for gaming (UAE and MAME
    spring to mind, possibly also dosbox and others).

    I daresay VMware probably uses RDTSC too.

    BMS
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  • Next message: Max Okumoto: "Re: Handling of shell builtins in make(1)"

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