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SubjectRe: [BENCHMARK] ext3, reiser, jfs, xfs effect on contest
Hans Reiser <> wrote:
> compilation is not an effective benchmark anymore, not for Linux
> filesystems, they are all just too fast (or is it that the compilers are
> too slow?....)

The point of this test is to measure interactions, and fairness.

It answers the question "how much impact does heavy filesystem I/O have upon
other system activity?".

The "other system activity" in this test is a kernel compile. That is a
fairly reasonable metric, because it is sensitive to latencies in servicing
reads and it is sensitive to inappropriate page replacement decisions.

A more appropriate foreground load might be opening a word processor and
composing a short letter to Aunt Nellie, but that's harder to automate. We
expect that reduced kernel compilation time will correlate with lower-latency
letter writing.

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