[rrd-users] Performance over NFS
linux at thehobsons.co.uk
Tue Dec 8 11:05:47 CET 2009
Tobias Oetiker wrote:
>try disabeling mmap io
Am I right in thinking that's a compile time option ? Also, is mmap
one of the feature that appeared in 1.3 - so version 1.2.15 won't be
using it. Does mmap on the hosting side (rrdtool updating the file)
have an effect ?
>also try exporting nfs with the async option ... less of a data
>integrity guarantee, but it should be faster ...
As I read the man page, that'll only affect writes. I've exported the
directory as read-only - and it doesn't appear to have any effect.
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