Add a benchmark for QReadWriteLock

Results on current dev branch [955b2bdfc0cb1d707f8914be230e5e00c548b6ab]:

thread count: 4
********* Start testing of tst_QReadWriteLock *********
Config: Using QtTest library 5.8.0, Qt 5.8.0 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 6.1.1 20160707)
PASS   : tst_QReadWriteLock::initTestCase()
PASS   : tst_QReadWriteLock::uncontended(nothing)
RESULT : tst_QReadWriteLock::uncontended():"nothing":
     1,113,292.1 CPU ticks per iteration (total: 11,132,922, iterations: 10)
PASS   : tst_QReadWriteLock::uncontended(QMutex)
RESULT : tst_QReadWriteLock::uncontended():"QMutex":
     35,490,310.7 CPU ticks per iteration (total: 354,903,108, iterations: 10)
PASS   : tst_QReadWriteLock::uncontended(QReadWriteLock, read)
RESULT : tst_QReadWriteLock::uncontended():"QReadWriteLock, read":
     40,513,695.0 CPU ticks per iteration (total: 405,136,950, iterations: 10)
PASS   : tst_QReadWriteLock::uncontended(QReadWriteLock, write)
RESULT : tst_QReadWriteLock::uncontended():"QReadWriteLock, write":
     43,179,327.2 CPU ticks per iteration (total: 431,793,272, iterations: 10)
PASS   : tst_QReadWriteLock::uncontended(std::mutex)
RESULT : tst_QReadWriteLock::uncontended():"std::mutex":
     37,733,243.0 CPU ticks per iteration (total: 377,332,430, iterations: 10)
PASS   : tst_QReadWriteLock::uncontended(std::shared_timed_mutex, read)
RESULT : tst_QReadWriteLock::uncontended():"std::shared_timed_mutex, read":
     71,517,438.7 CPU ticks per iteration (total: 715,174,388, iterations: 10)
PASS   : tst_QReadWriteLock::uncontended(std::shared_timed_mutex, write)
RESULT : tst_QReadWriteLock::uncontended():"std::shared_timed_mutex, write":
     69,967,867.5 CPU ticks per iteration (total: 699,678,676, iterations: 10)
PASS   : tst_QReadWriteLock::readOnly(nothing)
RESULT : tst_QReadWriteLock::readOnly():"nothing":
     479,393,335.3 CPU ticks per iteration (total: 4,793,933,354, iterations: 10)
PASS   : tst_QReadWriteLock::readOnly(QMutex)
RESULT : tst_QReadWriteLock::readOnly():"QMutex":
     823,493,383.2 CPU ticks per iteration (total: 8,234,933,832, iterations: 10)
PASS   : tst_QReadWriteLock::readOnly(QReadWriteLock)
RESULT : tst_QReadWriteLock::readOnly():"QReadWriteLock":
     559,816,053.6 CPU ticks per iteration (total: 5,598,160,536, iterations: 10)
PASS   : tst_QReadWriteLock::readOnly(std::mutex)
RESULT : tst_QReadWriteLock::readOnly():"std::mutex":
     961,903,416.3 CPU ticks per iteration (total: 9,619,034,164, iterations: 10)
PASS   : tst_QReadWriteLock::readOnly(std::shared_timed_mutex)
RESULT : tst_QReadWriteLock::readOnly():"std::shared_timed_mutex":
     1,786,254,363.5 CPU ticks per iteration (total: 17,862,543,636, iterations: 10)
PASS   : tst_QReadWriteLock::cleanupTestCase()
Totals: 14 passed, 0 failed, 0 skipped, 0 blacklisted, 44507ms
********* Finished testing of tst_QReadWriteLock *********

Change-Id: I42189f7a356dcb36378e9d54111b7fbe89e62402
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/tests/benchmarks/corelib/thread/qreadwritelock/qreadwritelock.pro b/tests/benchmarks/corelib/thread/qreadwritelock/qreadwritelock.pro
new file mode 100644
index 0000000000..86102adecd
--- /dev/null
+++ b/tests/benchmarks/corelib/thread/qreadwritelock/qreadwritelock.pro
@@ -0,0 +1,6 @@
+TEMPLATE = app
+TARGET = tst_bench_qreadwritelock
+QT = core testlib
+SOURCES += tst_qreadwritelock.cpp
+CONFIG += c++14  # for std::shared_timed_mutex
+