On Thu, 30 Mar 2017, David Howells wrote:

Linus Torvalds <torva...@linux-foundation.org> wrote:

The error bar can be huge, for the simple reason that the filesystem
you are testing may not be sharing a clock with the CPU at _all_.

IOW, think network filesystems.

Can't I just not do the tests when the filesystem is a network fs?  I don't
think it should be a problem for disk filesystems on network-attached storage.

it's not trivial to detect if a filesystem is local or network (you would have to do calls to figure out what filesystem you are on, then have a list to define what's local and what's remote, that list would become out of date as new filesystems are added)

David Lang

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