February 2011
- 11 -
Additional Features of the OS Image
NVIDIA PerfHUD ES Support
The supplied OS images support the latest version of NVIDIA’s PerfHUD ES, available from the
developer website. However, by default, this support is disabled. To enable it (and later
disable it if desired), do the following:
Enable/Disable on Windows Host
1)
Open an explorer window to Start Menu: All Programs: NVIDIA Corporation: Ventana
Android Gingerbread: Version <XXXXXXXX>: Platform Directory
2)
Navigate to the sub-directory:
perfhud_switch
3)
Ensure that your devkit is connected to the Host PC via ADB
4)
Run the
enable_perfhud.bat
batch file, which will enable PerfHUD ES support and
reboot your devkit. This support will stay enabled across reboots until manually
disabled or the board is re-flashed.
To manually disable PerfHUD ES support, follow these instructions using the
disable_perfhud.bat
script
Enable/Disable on Linux Host
1)
Open a shell to the
perfhud_switch
subdirectory of the OS installer pack
2)
Ensure that your devkit is connected to the Host PC via ADB
3)
Run the
enable_perfhud.sh
script, which will enable PerfHUD ES support and
reboot your devkit. This support will stay enabled across reboots until manually
disabled or the board is re-flashed.
To manually disable PerfHUD ES support, follow these instructions using the
disable_perfhud.sh
script
OProfile Support
The OProfile performance tool is not supported by this OS image.
Perf Support
The “
perf
” performance tool is supported by this OS image, and the on-device “
perf
”
application is included in
/system/bin
. It is thus in the
adb shell
path. See the NVIDIA
Tegra Developers website for details on how to use the
perf
tool.
