Diva : Real CPU usage

[pchanez]

Hi Urs,

First of all, congratulation for your plugins. I just bought Zebra and Diva during the last weeks and I'm really amazed, just discovering new sound every day.

Tonight I tried to see the limit of my computer for running Diva. So I select Divine mode, 16 voices and try to play as much voices as possible.

As many user (in the dedicated thread), 12 is the limit where I start to have "cracks and pops". I have an i7-980, 6 core , 3.33 Ghz and I'm using Cantabile Performer as host.

I'm not a VSTi programming expert but the thing I noticed is that when I reach the limit, looking at my CPU usage (with windows performance counter), I'm far to be at 100% usage. I usually have one of the 12 cores (inc the HT ones), at 60-70% and the other ones are below 10% ...

Don't know if this help ...

[djsubject]

Diva is not multi core enabled,

so its only using one core

Subz

[EvilDragon]

...at the moment.

[D-Fusion]

You have to remember that 100% cpu usage is not 100% on Multi core cpu's.
On a Quad core cpu 100% on one core is 25% 25X4=100%.

With multicore cpu's you have to take 100/No. of cores to see what equals 100% on one core

[ntom]

Diva is not multi core enabled,

so its only using one core

Subz

WELL GEEZE!!!! No wonder why my computer croaked and and had a heart attack from using Diva on Devine....
I mean, obviously my computer is not a powerhouse, but I'm not using a single core processor!

[pchanez]

Ok, Diva is not multicore, this is part of the explaination ... But the core used by Diva is never at 100% usage, max 60-70% (in the spikes), avg is below 50%

[Mplay]

Looks like you can run 2 instances per core (or 1 per thread). Maybe it isn't possible to have two threads at 100% each on the same core.

[Urs]

I also guess some hosts are stunned that a single plugin munches that much CPU time

[Fritze]

I also guess some hosts are stunned that a single plugin munches that much CPU time