rsync and posix_fadvise

[Tobias Oetiker]

Hi,

I use rsync for hardlink-backup ... since I run this quite
frequently, linux happily fills its cache with stuff that should
not realy go there .... I have set /proc/sys/vm/swappiness to 0
which helps, but since this acts across board it is not ideal.

Better would be to use posix_fadvise to POSIX_FADV_DONTNEED drop
the cache while reading and writing to disk ...

I did not find anything in the archive on this ... has anyone
attempted to implement this ?

cheers
tobi

-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten
http://tobi.oetiker.ch tobi at oetiker.ch ++41 62 213 9902