Speed up tst_QGraphicsView::mapToScene test

This test is doing a brute-force mapping. Coupled with changes to
QCOMPARE last year, this now allocates and deallocates a lot of memory
per iteration. On my Sandybridge, it takes two minutes to run:

     111136.781153 task-clock                #    0.999 CPUs utilized
   371,692,633,238 cycles                    #    3.344 GHz
   182,641,818,708 stalled-cycles-frontend   #   49.14% frontend cycles idle
    57,951,552,830 stalled-cycles-backend    #   15.59% backend  cycles idle
   477,216,332,971 instructions              #    1.28  insns per cycle
                                             #    0.38  stalled cycles per insn
    86,959,637,669 branches                  #  782.456 M/sec
       309,185,237 branch-misses             #    0.36% of all branches

     111.264868818 seconds time elapsed

Changing the iteration step from 1 to 5 reduces the runtime to about 5
seconds.

Change-Id: I9cad6f85f535f472319da7cd6c4aa28e12ddf1b7
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>

0 files changed, 0 insertions, 0 deletions