Re: READAHEAD

From: Andrew Morton (akpm_at_osdl.org)
Date: 10/31/03

  • Next message: Qric?= Brunet: "Re: status of ipchains in 2.6?" 
    Date:	Fri, 31 Oct 2003 00:03:08 -0800
To: Nuno Silva <nuno.silva@vgertech.com>

    Nuno Silva <nuno.silva@vgertech.com> wrote:
    >
    > >> Before, i never had to set readahead so high
    > >> Please could you tell me, what is going on here ?
    > >
    > >
    > > Lots of people have been reporting this. It's rather weird.
    > >
    >
    > I know nothing about this but, FWIW, I think that what changed where the
    > units. With 2.4 you specify sectors, with 2.6 you specify bytes.
    >
    > So, having -a8, in 2.4, is the same as having -a$((8*512)) [it's 4096
    > :)], in 2.6.
    >

    No, everything seems OK. Both `hdparm -a' and `blockdev --setra' are
    operating in units of 512 bytes.

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  • Next message: Qric?= Brunet: "Re: status of ipchains in 2.6?"

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