graphite-dev team mailing list archive

[Steve Thompson <question166527@xxxxxxxxxxxxxxxxxxxxx>]

New question #166527 on Graphite:
https://answers.launchpad.net/graphite/+question/166527

This is probably more of a Python question than a Graphite question but I thought I'd ask for other users experiences and advice. My Python skills are not far past the "Hello world" stage (although I'm getting better!)

When I first started playing with Graphite I installed it on a VMWare VM (Ubuntu 10.10). Unsurprisingly, once I started putting lots of data in to it the rendering slowed down. What I found though was that even by adding memcache and giving the VM more processors there was not much of an improvement to the rendering. 

Now that my company has decided we're going to adopt Graphite I've been doing a few experiments with the hardware I have available. I've taken 3 large datasets I created (a little script that just creates a text file of steve.metric.1 <random number> <timestamp every 5 secs>) and uploaded it to a fresh Graphite install on either Ubuntu 10.10 or RHEL 6 on four bits of hardware: a Intel Core 2 Duo desktop, an AMD Opteron server, an Intel Qaud core server and what we call "Dodecs" - 3 quad core AMD processor machines.

Although you can see a difference in the processor usage - as in the dodecs clearly aren't working as hard as the Core 2 -  the end result - the time it takes to render various graphs - doesn't seem to change much. 

My assumption is that something somewhere isn't using the available processing power - for example, Apache is but Python isn't - which is why we observe less processing power for the same end result? But this is an assumption based on very solid facts, the main one being that I don't know the inner workings of Python.

In summary, do I need to do something to take advantage of the extra processing power or should I not bother putting Graphite on high powered boxes?

Thanks in advance!

Steve

-- 
You received this question notification because you are a member of
graphite-dev, which is an answer contact for Graphite.