[rrd-developers] rrdtool 1.3 cairo switch is done

Tobias Oetiker tobi at oetiker.ch
Fri Jun 15 23:47:58 CEST 2007


Don't use O_DIRECT ! O_DIRECT is for people who do their own
caching ... database folks ... we don't ... we just tell the kernel
WHAT it should cache and what it should not cache ...

not sure what bernhards intention was with O_DIRECT.


> Graphing is ~1/3 the speed of 1.2.23, but its hard to say how much of
> that is cairo and how much is rrdtool itself.
> (FWIW, I get nearly identical results without O_DIRECT)
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten
http://it.oetiker.ch tobi at oetiker.ch ++41 62 213 9902

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