In article <[EMAIL PROTECTED]>,
Stephen C. Tweedie <[EMAIL PROTECTED]> wrote:
>For these reasons, buffered IO is often faster than O_DIRECT for pure
>sequential access.  The downside it its greater CPU cost and the fact
>that it pollutes the cache (which, in turn, causes even _more_ CPU
>overhead when the VM is forced to start reclaiming old cache data to
>make room for new blocks.)

Any chance of something like O_SEQUENTIAL (like madvise(MADV_SEQUENTIAL))

Mike.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to