installation and user information
optimization
Figure 2-24 X and Y Offset Adjustments
—Environment Variables - use the following environment variable to measure and compare performance:
HPOGL_LOG_FRAME_RATE - Is an application environment variable, which can be used to get a display of the frame rate for bench marking and performance comparisons.
On the master system at a command line prompt:
export HPOGL_LOG_FRAME_RATE=1
From the same prompt, run the application you wish to measure
Move something in the application window and watch for frame rates in the window where the prompt is.
When finished:
unset HPOGL_LOG_FRAME_RATE
Pixel Zoom - when HPOGL_DSM_DISABLE_FAST_ZOOM is enabled, the OpenGL Pixel Zoom rendering reverts to its previous slower behavior. If you want to determine the amount of this Pixel Zoom performance tuning, set this environment variable and compare with not setting it. This feature was released in software version 0201 in January 2002.
Example:
To see the slower mode:
export HPOGL_DSM_DISABLE_FAST_ZOOM=1
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