nV News Forums


nV News Forums (http://www.nvnews.net/vbulletin/index.php)
-   NVIDIA Linux (http://www.nvnews.net/vbulletin/forumdisplay.php?f=14)
-   -   Graphics utilization measurement question (http://www.nvnews.net/vbulletin/showthread.php?t=142239)

peter_ga 12-06-09 08:42 PM

Graphics utilization measurement question
I am using the 9400 GT and 9500 GT cards, with 190.42 driver.

Given a sync'd multi-monitor graphical load, what is the best method of determining overall load as a percentage of maximum? With other graphics cards, this has been achieved by measuring the time difference between the final glfinish and the arrival of the vertical sync signal, as a fraction of the overall rendering cycle period. However the nvidia graphics appears to be doing a busy wait within the glfinish, with no waiting within glxSwapbuffer at all. So it is difficult inferring GPU idle time.

I have seen some discussion that seems to infer that the best approach is to build a CUDA application. Is this correct?

peter_ga 12-07-09 02:13 AM

Re: Graphics utilization measurement question
I have discovered nvperfkit, so that should hopefully resolve this issue.

All times are GMT -5. The time now is 09:43 AM.

Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright 1998 - 2014, nV News.