[lkml]   [2007]   [Nov]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Strage buffer behaviour
    On Sunday 11 November 2007 11:33, Tino Keitel wrote:
    > The dd command reads 100 MB from each partition two times in a row. It
    > looks like sda1 and sda2 are not bufferd (the first 4 dd runs), but
    > sda3 and sda4 are (the last 4 dd runs).
    > The computer is a Mac mini with a 2,5" SATA hard disk. The first 2
    > partitions contain EFI and MacOS X, and are unused in Linux. The last 2
    > partitions are an ext3 partition for / and an LVM for the rest of the
    > sytem.
    > Any hints how the dd/buffering behaviour could be explained? The system
    > was mostly idle, and the numbers are reproducible across reboots.

    IIRC only mounted partitions' reads are cached.
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2007-11-12 20:47    [W:0.024 / U:44.764 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site