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    SubjectRe: [PATCH][RFC] dynamic pipe resizing

    On Aug 24 2007 10:52, Jens Axboe wrote:
    >Hi,
    >
    >Dabbling around with splice a bit, I added some code to change the size
    >of a pipe. Currently it's hardcoded as 16 pages, with this patch you can
    >shrink (if you wanted) or grow (the likely scenario) if you want to
    >increase the size of your in-kernel buffer for splice operations.

    Wonderful, I just did the same {-.-}
    (but then dropped the patch because it did not help my application at all,
    so never mind).

    >Like with my original splice patches from 2005, I used fcntl()
    >F_GETPIPE_SZ and F_SETPIPE_SZ to change the size of the pipe. I'm not
    >particularly fond of that interface, so suggestions on how to improve it
    >would be appreciated. Even if fcntl() should be the preferred approach,
    >I think it would be better to pass in a byte based value instead of a
    >number of pages.

    And using % pipe->buffers then?


    Jan
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