Canvassing for network filesystem write size vs page size

[David Howells]

Matthew Wilcox <willy at infradead.org> wrote:

> Filesystems should not make an assumption about this ... I suspect
> the optimum page size scales with I/O bandwidth; taking PCI bandwidth
> as a reasonable proxy, it's doubled five times in twenty years.

There are a lot more factors than you make out.  Local caching, content
crypto, transport crypto, cost of setting up RPC calls, compounding calls to
multiple servers.

David