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>
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| .. | ||
| auto | ||
| baselineserver | ||
| benchmarks | ||
| global | ||
| manual | ||
| shared | ||
| README | ||
| tests.pro | ||
README
This directory contains autotests and benchmarks based on QTestlib. In order
to run the autotests reliably, you need to configure a desktop to match the
test environment that these tests are written for.
Linux X11:
* The user must be logged in to an active desktop; you can't run the
autotests without a valid DISPLAY that allows X11 connections.
* The tests are run against a KDE3 or KDE4 desktop.
* Window manager uses "click to focus", and not "focus follows mouse". Many
tests move the mouse cursor around and expect this to not affect focus
and activation.
* Disable "click to activate", i.e., when a window is opened, the window
manager should automatically activate it (give it input focus) and not
wait for the user to click the window.