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Hi Toby!<br>
<br>
Do you know which parameters you are talking about exactly?<br>
<br>
We have experience that for some reason we are able to update 40k rrd
files every 5 minutes on an Intel RH7.2 system, but when we tried to
migrate to RHES4 the system would no longer perform and we reach a
limit of 20k RRD files updated every 5 minutes and then the updates to
all those files fall apart.<br>
<br>
It seems as if the 2.6 Kernel is doing some more agressive prefetching
of blocks when opening each RRD file...<br>
<br>
I remember having looked for tweaking, but I have never found a
conclusive answer... That is why I initially started the libdbi patch...<br>
<br>
Ciao,<br>
Martin<br>
<br>
Tobias Oetiker wrote:
<blockquote
cite="mid:alpine.DEB.0.99.0705151747320.24275@wbuna.brgvxre.pu"
type="cite">
<pre wrap="">Hi Robert,
you may want to look at your sytem configuration ... especially
blocksized and cache handling ... how often to you want to update
these 100k rrd files per minute ?
cheers
tobi
</pre>
<blockquote type="cite">
<pre wrap="">I while ago I noticed a topic that let rrdtool use a database backend. What
is the status with this project? Also, has this turned out to be a viable
solution when updating large amounts of rrd files? We're currently
exploring other storage media to help our writes become faster. We are
currently writing just under 100K rrd files and have distributed writing.
We were thinking of modifying rrdtool to use a MySql database and would like
to modify the database beackend I saw on the list (if needed) accordingly so
that we don't have to re-invent the wheel.
I tried to look through the archives, but was only seeing patches to the
library file. Is there a place to get the whole thing at? I couldn't see
it in the /lib or /contrib download directories of the main site.
</pre>
</blockquote>
<pre wrap=""><!---->
</pre>
</blockquote>
<br>
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