Messages in this thread | | | Subject | Re: Noatime vs relatime | From | Arjan van de Ven <> | Date | Fri, 10 Aug 2007 07:47:37 -0700 |
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On Fri, 2007-08-10 at 07:26 -0700, Vlad wrote: > Linus Torvalds wrote: > Relatime seems to be wasteful of both IO resources _and_ CPU cycles. > Instead of performing a single IO operation (as atime does), relatime > performs at least three IO operations and three CPU-dependent > operations:
> > 1) a read IO operation to find out the old atime > 2) a read IO operation to find out the old ctime > 3) a read IO operation to find out the old mtime
you've mistaken the concept of inode-in-memory... there is no IO involved in any of these.
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