Messages in this thread |  | | Date | Wed, 4 Sep 2002 00:27:09 -0400 | From | "Kevin O'Connor" <> | Subject | Re: (fwd) Re: [RFC] mount flag "direct" |
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On Tue, Sep 03, 2002 at 11:19:21PM +0100, Anton Altaparmakov wrote: > At 22:48 03/09/02, Peter T. Breuer wrote: > >What one has to get rid of is cached metadata state. I'm open to suggestions. > > This is crazy. I don't think you understand what that actually implies. I > will give you a real world example below.
It is crazy, but probably achievable. One could wrap all VFS ops (read, write, rename, unlink, etc) to do:
distributed_lock() mount() op() umount() distributed_unlock()
[...] > I am completely serious, we are talking at least hundreds of milliseconds > possibly even several seconds to read that single byte. > > What was that about 50GiB/sec performance again...?
Well, you'll probably get 50B/sec from it..
-Kevin
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