Thread (11 messages) 11 messages, 6 authors, 2021-08-06

Re: Canvassing for network filesystem write size vs page size

From: David Howells <dhowells@redhat.com>
Date: 2021-08-06 13:45:09
Also in: ceph-devel, linux-fsdevel, linux-mm, linux-nfs, lkml

Matthew Wilcox [off-list ref] 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
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