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    SubjectRe: Linux 2.6.29
    Jeff Garzik wrote:
    > Attached are some additional tests using sync_file_range, dd, an SSD and
    > a normal SATA disk. The test program -- overwrite.c -- is unchanged
    > from my last posting, basically the same as Linus's except with
    > posix_fadvise()

    Oh, and, as run-test.sh shows, these tests were done with the file
    pre-allocated and sync'd to disk.

    The dd and overwrite invocations that follow the first dd invocation do
    /not/ require the fs to allocate new blocks.

    Jeff





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