Re: [BENCHMARK] 2.6.3-rc2 v 2.6.3-rc3-mm1 kernbench

From: Nick Piggin (piggin_at_cyberone.com.au)
Date: 02/16/04

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    Date:	Tue, 17 Feb 2004 00:20:10 +1100
To: Con Kolivas <kernel@kolivas.org>

    Con Kolivas wrote:

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    >Here's some nice evidence of the sched domains' patch value:
    >kernbench 0.20 running on an X440 8x1.5Ghz P4HT (2 node)
    >
    >Time is in seconds. Lower is better (fixed font table)
    >
    >Summary:
    >Kernel: 2.6.3-rc2 2.6.3-rc3-mm1
    >Half(-j8) 120.8 113.0
    >Optimal(-j64) 81.6 79.3
    >Max(-j) 82.9 80.3
    >
    >
    >shorter summary:
    >2.6.3-rc3-mm1 kicks ***
    >
    >

    Thanks Con,
    Results look pretty good. The half-load context switches are
    increased - that is probably a result of active balancing.
    And speaking of active balancing, it is not yet working across
    nodes with the configuration you're on.

    To get some idea of our worst case SMT performance (-j8), would
    it be possible to do -j8 and -j64 runs with HT turned off?

    -
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