Re: FreeBSD 5.3 I/O Performance / Linux 2.6.10 | Continued Discussion

From: Petri Helenius (pete_at_he.iki.fi)
Date: 01/26/05

  • Next message: Nick Pavlica: "Re: FreeBSD 5.3 I/O Performance / Linux 2.6.10 | Continued Discussion" 
    Date: Wed, 26 Jan 2005 01:39:45 +0200
To: Matthias Buelow <mkb@incubus.de>

    Matthias Buelow wrote:

    > Petri Helenius wrote:
    >
    >> Are you sure you aren't comparing filesystems with different mount
    >> options? Async comes to mind first.
    >
    >
    > a) ext3 and xfs are logging filesystems, so the problem with
    > asynchronous metadata updates possibly corrupting the filesystem on a
    > crash doesn't arise.

    No, they have a different, though unrelated issues. I didn't notice
    which filesystem and which options were used for the benchmarks, that's
    why I was asking about it.

    > b) asynchronous metadata updates wouldn't have any performance benefit
    > on a dd if=/dev/zero of=tstfile.

    I was not aware that the tests were this simple.

    > c) please cut down your quotes, and write your answers below or
    > between the quoted text, instead of the outlook text-above-fullquote
    > style. thanks.

    I usually do, however in this case it was intentional.

    Pete

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  • Next message: Nick Pavlica: "Re: FreeBSD 5.3 I/O Performance / Linux 2.6.10 | Continued Discussion"

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