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    SubjectRe: Plain 2.4.5 VM...
    On Tue, May 29, 2001 at 11:32:09AM +0900, G. Hugh Song wrote:
    >
    > Jeff Garzik wrote:
    > >
    > > Ouch! When compiling MySql, building sql_yacc.cc results in a ~300M
    > > cc1plus process size. Unfortunately this leads the machine with 380M of
    > > RAM deeply into swap:
    > >
    > > Mem: 381608K av, 248504K used, 133104K free, 0K shrd, 192K
    > > buff
    > > Swap: 255608K av, 255608K used, 0K free 215744K
    > > cached
    > >
    > > Vanilla 2.4.5 VM.
    > >
    >
    > This bug known as the swap-reclaim bug has been there for a while since
    > around 2.4.4. Rick van Riel said that it is in the TO-DO list.
    > Because of this, I went back to 2.2.20pre2aa1 on UP2000 SMP.
    >
    > IMHO, the current 2.4.* kernels should still be 2.3.*. When this bug
    > is removed, I will come back to 2.4.*.

    Just keep enough swap around. How hard can that be ?

    Really, it's not like a memory leak or something. It's just "late reclaim".

    If Linux didn't do over-commit, you wouldn't have been able to run that job
    anyway.

    It's not a bug. It's a feature. It only breaks systems that are run with "too
    little" swap, and the only difference from 2.2 till now is, that the definition
    of "too little" changed.

    --
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    :.........................:............{Konkhra}...............:
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