Torrey McMahon writes: > Reads? Maybe. Writes are an other matter. Namely the overhead associated > with turning a large write into a lot of small writes. (Checksums for > example.) > > Jeremy Teo wrote: > > Hello all, > > > > Isn't a large block size a simple case of prefetching? In other words, > > if we possessed an intelligent prefetch implementation, would there > > still be a need for large block sizes? (Thinking aloud) > > > > :) > > >
What Torrey says plus, a file stored with multiple small records still will need multiple head seeks to fetch data (prefetch or not). Given that head seeks are a precious resource large records are, at times, a goodness. Larger records also reduces the amount of metadata. -r > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
