mmm -j8 frameworks/base/libs/hwui/tests/ &&
    adb push $OUT/data/local/tmp/hwuitest /data/local/tmp/hwuitest &&
    adb shell /data/local/tmp/hwuitest


Command arguments:
hwuitest [testname]

Default test is 'shadowgrid'

List of tests:

shadowgrid: creates a grid of rounded rects that cast shadows, high CPU & GPU load

rectgrid: creates a grid of 1x1 rects

oval: draws 1 oval