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    SubjectRe: Linux 2.6.29
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    Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

    >> > I have not had this problem since I applied Arjan's (for some reason
    >> > repeatedly rejected) patch to change the ioprio of the various writeback
    >> > daemons. Under some loads changing to the noop I/O scheduler also seems
    >> > to help (as do most of the non default ones)
    >>
    >> (link would be useful)
    >
    >
    > "Give kjournald a IOPRIO_CLASS_RT io priority"
    >
    > October 2007 (yes its that old)

    One issue discussed back then (also for a similar XFS patch) was
    that having the kernel use the RT priorities by default makes
    them useless as user override.

    The proposal was to have a new priority level between normal and RT
    for this, but noone implemented this.

    -Andi

    --
    ak@linux.intel.com -- Speaking for myself only.


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