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Memory Tweaks on a new 4GB machine
Last post Fri, Apr 06 2007 by Marc B, 7 replies.
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Posted on Mon, Mar 12 2007 09:54
by 1424682
Joined on Sat, Nov 27 2004, Germany, Posts 14
Hello,

unfortunately I've problems to set up a new Gigastudio machine. It's a Fujitsu-Siemens workstation with 2 Xeon processors and 4GB ECC RAM (8x512MB).

With the default memory preset I can load about 40% of the available 3,2GB system memory (results in ~ 1,2GB).

When I try one of the tweak presets, something strange happens: the memory test (giga system settings) calculates possible 63% of RAM usage, but the real thing shows up an "unknown system error" after loading about 15% of gig-files within GS3 Ensemble.

Any statements? Has anyone of you experienced similar problems?

Any help would be very much appreciated.

Greets,
Ricardo
Posted on Mon, Mar 12 2007 10:34
by DG
Joined on Wed, May 12 2004, Posts 8608
If you get 1.2GB, then be thankful for small mercies. This is more than most people. The answer? Get rid of the memory tweaks, don't use GS3, use GVI and save GS3 for editing.

DG
Nuendo 6.03, 4.3
2 x Intel Xeon x5675 3.07GHz Hex Core
48GB RAM
Windows 7 (x64)Pro
RME Multiface II
Intensity
ATI HD5400 series graphics card
Posted on Mon, Mar 12 2007 11:55
by cm
Joined on Fri, Dec 20 2002, vienna, Posts 9062
ricardo, 1,2 GB is pretty good for GS ... i doubt you will get the machine to load more ...
christian
and remember: a CRAY is the only computer that runs an endless loop in just four hours ...
Posted on Mon, Mar 12 2007 22:59
by alanb
Joined on Sat, Feb 04 2006, Posts 68
Hi Ricardo:

A few things come to mind:

The "Tested Memory Available..." value in Giga's memory test does not reflect the actual amount of memory that Giga can use to load instruments... it is only a tool for estimating, based upon what little of the Windows memory-handling spec that Microsoft shares with the outside world... So a higher percentage value doesn't necessarily translate to better memory use than a lower percentage value... and a lower percentage value doesn't necessarily translate to less available memory use than a higer percentage value...

The two best tests for determining your actual memory capability are:

(i) launching the Windows Task Manager, clicking on the "Processes" tab, and watching the "Mem Usage" value of "msg32.exe" increase as you load more and more instruments. The value you get when you start seeing "unknown system error" messages is a much better indication of your true memory limits;

(ii) loading a fixed set of instruments (biggest ones first), and seeing how far down that list you can get.

---------------------------

Based upon what I've read, here and elsewhere, it seems that Giga can't make use of anything over 1.1 ~ 1.2GB of memory for samples (that's a current Windows per-application limitation, not a Giga limitation). Therefore, the fact that you have installed 4GB won't by itself help GS3's performance. What it will do, however, is lower your "Tested Memory Available" percentage value, since it is being calculated as a percentage of a much larger number than what the folks with 2GB systems have (you'd be closer to 80% on a 2GB system).

---------------------------

How much memory you have isn't the only important factor -- equally important is how Windows allocates your memory. For example, I could not load any of my SampleTekk piano libs, using any of the five GS3 presets.

I used Mattias' application to change the numbers controlling how Windows actually makes use of my 2GB of memory. As a result, I can load up the pianos now, even thought my memory test "percentage" is now lower than it was before.

There is another "trick," usually referred to as the "/3GB switch," which is another Windows configuration method. That configuration technique is a bit trickier than the tweak effected by Mattias' app, and TASCAM doesn't support the "/3GB switch" -- especially when your memory number is as high as it seems to be, I don't think that it's worth messing around with...

---------------------------

My guess is that you will be best able to take full advantage of your additional RAM, in a Giga context, by running multiple instances of GVI on your machine -- instead of or in addition to GS3.

Considering how cheap GVI is for GS3 owners, it seems to be an obvious choice...

But remember one thing -- GVI does not feature the full-blown "GigaPulse Pro" that comes integrated with GS3 (although a recent update now includes the original "NFX" reverb algorithm that comes with GS3), so you cannot add GP to a dry sample loaded in GVI, the way that you can in GS3.

However, GVI will process GigaPulse information that has been pre-coded into specific libraries (like Larry Seyer's Acoustic Drums or the various SampleTekk piano libs).

That's the state of the art... at least until 64-bit Windows is really here...

Plus, there will hopefully be news about GS4 and the next generation of GigaPulse soon...!!!

Alan

.
-- alanb
Posted on Thu, Mar 15 2007 00:01
by 1424682
Joined on Sat, Nov 27 2004, Germany, Posts 14
Hello and thank you for your posts.

I try to be thankful on small mercies throughout my life and yes, 1.2GB is better a lot than orchestration with an atari st, notator and a GM sound modul [Wink] (sorry for that).

It's just a little frustrating to recognize that I was able to load about 1.1 GB of instruments on my old machine with 1.5 GB system RAM and then get 1.2 GB on a new machine with 4GB installed.

I'll try GVI and maybe a combination of GVI and GS3 to get more out of my 4GB. To this day I think that a 1000€ holiday would have been a more clever investment than buying a nice dual Xeon / 4GB RAM workstation.

But still thank you for your replies. Any further ideas to get more VSL out of GS/GVI are very much appreciated.

All the best, Ricardo
Posted on Thu, Mar 15 2007 00:54
by alanb
Joined on Sat, Feb 04 2006, Posts 68
1424682 wrote:
I'll try GVI and maybe a combination of GVI and GS3 to get more out of my 4GB. To this day I think that a 1000€ holiday would have been a more clever investment than buying a nice dual Xeon / 4GB RAM workstation.

But still thank you for your replies. Any further ideas to get more VSL out of GS/GVI are very much appreciated.

Don't worry... you will come to appreciate the computer investment over time... Big Smile

As for loading up more and more and more samples... by the time you've got 2+GB of samples loaded, and maybe a few instances of GigaPulse too, who knows... you might even find yourself overpowering your CPU long before you run out of usuable memory (this is where you will be happy that you got a more powerful processor).

If this happens, and if you are uinable to increase your polyphony enough to keep up with your samples (especially sustained samples), then you can always start "freezing tracks" in your DAW/sequencer application... that will help you get all of your instruments out there, even though not necessarily all-at-once...
-- alanb
Posted on Fri, Apr 06 2007 14:29
by Marc B
Joined on Sat, Aug 09 2003, Canada, Posts 109
Hi Ricardo,

I've got the exact same problem as you. The latest machine are too fast for GS3. GVI is not an option for me as I sequence on the MAC. Let's just hope GS4 will be out soon and will address the RAM limitation.

-marc
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