Re: [PATCH 00/23] per device dirty throttling -v8

Ingo Molnar
2007-08-04T20:11:42Z

* Ingo Molnar <mingo@elte.hu> wrote:

> +#ifdef CONFIG_FASTATIME
> + if (!(flags & (MNT_NOATIME | MNT_NODIRATIME)))
> + mnt_flags |= MNT_RELATIME;
> +#endif

btw., "relatime" does not seem to make much of a difference, if i do
this:

ls -l x ; sync

on a "relatime" mounted filesystem ('x' is a regular file), then there's
disk IO for every such command. Only if i mount it noatime,nodiratime do
i get zero disk IO. Or my patch is wrong somehow.

Ingo