> I don't doubt that there may be a positive effect from increasing the
> block size. But we haven't seen any analysis of why that
> might be. If it's just to use the disk system bandwith better, maybe
we should
> combine page writes instead or something.
It is usually the reads that need aid. Writes are fast on modern
disksystems since they are
cached.
I think the main effect is reduced OS overhead for the readahead
prediction logic and
reduced system call overhead.
Andreas
