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    SubjectRe: [OT] No Swap. Re: [BUG 2.6.90-test5] kernel shits itself with 48mb ram under moderate load
    Roger Luethi wrote:
    > On Sat, 27 Sep 2003 20:13:48 +0200, Ihar 'Philips' Filipau wrote:
    >
    >>Roger Luethi wrote:
    >>
    >>>On Sun, 28 Sep 2003 01:26:34 +1000, Jason Lewis wrote:
    >>>
    >>>>0 12 0 3424 816 6008 0 0 19712 0 5519 3184 0 12
    >>>>0 87
    >>>
    >>> ^^^^
    >>>Looks like you don't have swap enabled. Are successful 2.4 runs with or
    >>>without swap?
    >>
    >> I'm running RH stock 2.4.20-20.9 without swap for around month.
    >> OOo, Mozilla, eDonkey & heaps of xterms. Even evaluation of VMware
    >>with Win2K inside was Ok.
    >> On average: much better experience.
    >
    > Better than with swap? Or better than 2.6?
    >

    Better than with swap. This is production workstation - I cannot test
    something on it :-(

    >
    >>$ free
    >> total used free shared buffers cached
    >>Mem: 513872 507128 6744 0 32784 341404
    >
    > The initial post was about a 48 MB machine. 10% of what you have. The
    > poster's system is paging like crazy -- since all dirty pages without a
    > mapping are pinned in memory, it must shuffle around the rest.
    >

    Sorry, I even marked $subject as [OT].
    I'm answering the question '2.4 without swap' - Yes. It is. Works.
    No problems.

    <rant>'Paging like crazy' became for me a synonym of Linux. It
    doesn't matter how much memory you have. Less == worse. Developers
    stopped testing VMM regression on low-memory computers long time ago.
    <sarcasm>We have now fashion for clusters and numas. And a lot of swap
    on very fast raids. <sarcasm size=+100%>After all it is cheap. Just
    couple of thousands greenbacks. </sarcasm> </sarcasm> It was really
    funny when developers on LKML were sugesting to buy another hdd for
    swap. Very funny.</rant>

    Unfortunately I'm not a specialist in VMM...
    As I see there is not that much edge case testing going around.

    --
    Ihar 'Philips' Filipau / with best regards from Saarbruecken.
    --
    "... and for $64000 question, could you get yourself vaguely
    familiar with the notion of on-topic posting?"
    -- Al Viro @ LKML

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