RAM preview setting limit?
by John Magee
on
Aug 29, 2008 at 6:48:05 pm
I just added 2gig of system memory for a total of 3g. Previously, Vegas 8 showed 639MB available for preview use. Now it only shows 1024MB available. I'm assuming something is limiting this number, because it should say something like 2600MB available, right?
Re: RAM preview setting limit? by Mike Kujbida on Aug 29, 2008 at 6:51:12 pm
In Vegas 7 and earlier, you were able to bump this number up yourself.
However, Vegas 8 now decides what your limit is and, as far as I know, there's nothing you can do about it :-(
Re: RAM preview setting limit? by rob mack on Aug 29, 2008 at 10:19:45 pm
Nope, nothing fishy. 32-bit windows allows a program to use 2GB, made up of actual RAM and virtual memory. Bumping your system up to 3GB made it possible for Vegas to use more RAM for it's allowed memory space, and less virtual memory.
The preferences dialog limits how much RAM you can allocate for preview but I *think" that if you set this manually in the hidden prefs then you can set a higher limit. Just don't fuss with it in the normal prefs because the dialog window seems to calculate what the limit is.
Other things you can do are to hunt down a utility that can reset a flag in the Vegas executable to make it Large Address Aware. Essentially, if you work it right you can get Vegas to use a little more memory, and the Preview RAM can also be set a little higher. One possible problem with this, and with setting your RAM preview high in general, is that you can use so much memory that you force windows to try to swap all sorts of other processes. You'll end up with slower performance in Vegas because the OS is too busy managing the page file.
Setting the flag to make Vegas Large Address Aware is much more useful if you're running a 64-bit version of Windows that supports more RAM. But it's also totally unsupported so you can't go crying to anyone if Vegas crashes.
