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    SubjectRe: 2.4.5 VM
    "Trever L. Adams" wrote:

    > In my opinion 2.4.x is NOT ready for primetime. The VM has been getting
    > worse since 2.4.0, I believe. Definitely since and including 2.4.3. I
    > cannot even edit a few images in gimp where the entire working set used
    > to fit entirely in memory. The system now locks in some loop (SAK still
    > works).
    >
    > FILE CACHING IS BROKEN. I don't care who says what, by the time swap is
    > half filled, it is time to start throwing away simple caches. Not wait
    > until there is no more memory free and then lock in an infinite loop.
    >
    > My system has 128 Meg of Swap and RAM.
    >
    > Trever Adams
    >
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    > Please read the FAQ at http://www.tux.org/lkml/

    I've found that with the latest kernel release (2.4.5) VM performance has
    been greatly improved. kswapd and bdflush no longer use 200% of my cpu
    cycles when simply doing a dd bs=1024 count=8388608 if=/dev/zero
    of=test.file. All of my test systems remain responsive with about 180% cpu
    available. These systems are running software RAID and 3ware IDE raid with
    2GB of memory and 4GB swap. Have you tried 2.4.5?

    -zim

    Christopher Zimmerman
    AltaVista Company

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