[ejabberd] CPU Utilization on ejabber servers
Andreas van Cranenburgh
andreas at unstable.nl
Thu Nov 3 20:54:23 MSK 2005
On Thu, Nov 03, 2005 at 06:26:35PM +0100, Sander Devrieze wrote:
> Op donderdag 03 november 2005 17:10, schreef Andreas van Cranenburgh:
> > 3. if there's memory free, then you installed too much memory. Or: you
> > can store more things in memory instead of on-disk (note that this can
> > be dangerous in case of power-loss, data can disappear).
> Note that you can opt to have the information replicated in RAM *and* hard
> disc. However, I am not sure if this will save CPU time.
I should know more about Erlang. One thing, it certainly saves you disk
access time :)
RAM is approx 1000x faster than disk access. Note that's VERY approx.
This goes for reading, and even more for writing!
Andreas [ http://unstable.nl | xmpp:andreas at unstable.nl ]
[ callto:ils.seconix.com/andreas at unstable.nl ]
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