HP sv6 - Manual (Page 80)

installation and user information
optimization
Chapter 2 80
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