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Old 07-26-2007, 10:27 AM
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MindDead MindDead is offline
Join Date: Jun 2003
Location: Baltimore, MD
Posts: 179
Default Mac Pro 8-Core = 406 Mono Dverb inserts! My stress test.

Using these Dverb test specs. from the Quadzilla post:
"Start the computer. Create a brand new 24bit/48k Session on your audio drive for the Dverb test. Open up the system usage window in PT. Create 32 tracks. Go to your buffer setting and select 64 and then 1024(CPU usage must be 90%). Since all your tracks are still selected, hold ALT(option) and click on the record button on one of the tracks, all 32 tracks will now be in record arm mode. Hold ALT(option) and insert the Dverb on the first insert. This will create 32 Dverbs all the way across. Repeat with the next insert. You want to be able to record with as many Dverbs as you can before your computer doesnt do it anymore for 5 minutes. Keep in mind that playback only will give you a few more Dverbs than record mode.

Please make sure that RTAS Engine Ignore Errors During Playback/Record box is unchecked

If you can make it past the 32 or 48 mono tracks, then start adding mono Aux tracks.

This is a quick benchmark stress test that can be done in a few minutes."

I was able to record more than 5 minutes of audio with 392 Dverb inserts running. If I went to 400 Dverb inserts, I got a error about "can't read off hard disk fast enough" -3079 I think. So the max is between 392 & 400 for me.

I can post any screenshots needed to verify and/or more specifics on my Mac as requested.

This is most info.
Hardware Overview:

Model Name: Mac Pro
Model Identifier: MacPro2,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 3 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per processor): 8 MB
Memory: 4 GB
Bus Speed: 1.33 GHz


I increased the DAE Playback Buffer to Level 8 to kill the error I was getting. I maxed out @ 406 Mono DVerb 24-48-1024 (CPU 99%) and recording on all audio tracks for over 5 minutes.

I took screen shots too, it's kinda wild looking. Sorry in advance I work on 2 monitors @ 1920x1200 Res. So the SS are kinda big. here they r:
First Screenshot
Second Screenshot

The 8 core is Very stable and fast as hell, just wait until Digi is fully able to take advantage of the 8 core with future updates.

BTW, I got Pro Tools LE to run on my Mac Pro 8 Core by using the
Prebinding Script.
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