Question #166527 on Graphite changed:
https://answers.launchpad.net/graphite/+question/166527
Status: Open => Answered
Nicholas Leskiw proposed the following answer:
1.) More details would be useful. How many datasets are you graphing?
How many points per hour are you graphing? How
Have you looked at Disk I/O as the bo
-Nick
On Jul 31, 2011, at 5:15 AM, Steve Thompson
<[email protected]> wrote:
> 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
>
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