Am Montag, 27. August 2001 21:55 schrieb Richard Gooch:
> Daniel Phillips writes:
> > The quesion is, how do you know you're streaming? Some files are
> > read/written many times and some files are accessed randomly. I'm
> > trying to avoid penalizing these admittedly rarer, but still
> > important cases.
>
> I wonder if we're trying to do the impossible: an algorithm that works
> great for very different workloads, without hints from the process.
For streaming we should be able to detect consecutive reads.
If it's not that easy could we not measure hit/miss ratios ?
> Shouldn't we encourage use of madvise(2) more? And if needed, add
> O_DROPBEHIND and similar flags for open(2).
For symmetry rather fadvise. Besides usage patterns may change.
Regards
Oliver
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Aug 31 2001 - 21:00:25 EST