Varying Render times

dand9959 wrote on 12/2/2005, 10:21 AM

My experiment:

Reboot machine.
Start V6c.
Load .veg project.
Render to mpg2
Time to render: 45m

Close V6c.
Start V6c
Load .veg project
Render again to mpg2
Time to render: 1h 30m

Is there a memory leak in V6. What else would cause such a drastic change in render times.

(Plenty of hard drive space. Not-so-powerful PC : 1.8Ghz)

Comments

Steve Mann wrote on 12/2/2005, 6:01 PM

Did you do ANYTHING between the renders? Change a filename, make one tiny tweak to the editing? Delete a file?

dand9959 wrote on 12/4/2005, 4:54 PM

Sorry for the slow response.

No, I did nothing between renders other than shut down Vegas and restart it, load the veg, and render.

Orcatek wrote on 12/4/2005, 5:27 PM

I noticed the same thing is some testing. I suspected that windows was caching some files, so the second render would have some files in cache.

It would have to be a fair number of smaller files for this to make sense.

The other thing I considered was not a memory leak, but a memory caching by Vegas itself. If it was not smart enough on freeing memory for the render, it could slow things down.

peteros wrote on 12/4/2005, 6:17 PM

I noticed the same - rendering to ac-3. Strange but true...

plasmavideo wrote on 12/5/2005, 6:57 AM

Before you do your second render, try deleting the original render instead of rendering using the same name over top of the first one - or give it completely different name.

Don't know why that works, but that's what I found a while back.

Tom