Hi,

has there been any thoughts on utilizing posix_fadvise* in BackupPC?

Let's assume for a moment you have a really big pool where the speed
of pool operation improves dramatically when the directory structure
is cached in the linux file system cache.

Now backuppc starts to backup a client and because of not using
posix_fadvise each file written to disk is being cached in the file
system cache, eventually pushing the cached directory structure out
of the cache.

In the end i'm interested in keeping my directory structure in the
file system cache instead of files backupped from clients that are
not touched again any time soon.

Any ideas on using https://github.com/Feh/nocache with backuppc?

Thanks
Marcel

* http://linux.die.net/man/2/posix_fadvise

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