[collectd] [rrd-developers] rrdcached + collectd issues

Florian Forster octo at verplant.org
Tue Oct 13 10:17:37 CEST 2009


Hi,

On Mon, Oct 12, 2009 at 10:35:44PM +0200, Benny Baumann wrote:
> To make the picture complete there's even another factor that makes
> this nothing you want to do in software: Modern harddrives usually
> "plan" their read and write requests automatically already. So when
> write accesses occure right behind each other the harddrive will
> already figure out the best way to write them - unless you enforce
> synchronous request completion with e.g. O_DIRECT or thelike.

I think this was the idea behind multiple write threads. Since according
to Thorsten two threads perform better than ten, I'm under the
impression this technology is not quite there yet. Or we're using it
wrong … ;)

—octo
-- 
Florian octo Forster
Hacker in training
GnuPG: 0x91523C3D
http://verplant.org/
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