Re: O_DIRECT! or O_DIRECT?

Miquel van Smoorenburg
2001-07-04T18:27:36Z

In article <20010704185230.F28793@redhat.com>,
Stephen C. Tweedie <sct@redhat.com> 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.