Re: Lockless file reading
From: Martin Konold
Date: Thu Aug 28 2003 - 05:26:47 EST
Am Thursday 28 August 2003 11:27 am schrieben Sie:
Hi,
> It's not about CPU usage. It's mostly about being able to modify the
> file even when there's thousands of simultaneous readers that could
> otherwise keep the file locked almost constantly.
No, the readers only have to check if the file got locked by the writer(s).
> Also it'd be nice to support NFS with .lock files since no-one really
> uses lockd.
IMHO a lock file on nfs is the most inefficient locking mechanism in case of
readers and writer(s) on the same machine.
BTW: What about moving this thread away from linux-kernel? It is already clear
that the kernel does not provide these guarantees you asked for.
Regards,
-- martin
Dipl.-Phys. Martin Konold
e r f r a k o n
Erlewein, Frank, Konold & Partner - Beratende Ingenieure und Physiker
Nobelstrasse 15, 70569 Stuttgart, Germany
fon: 0711 67400963, fax: 0711 67400959
email: martin.konold@xxxxxxxxxxx
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