David Faure a8ae8e3130 QDateTime::fromString(): improve performance by 33% ... getMaximum() and getMinimum(), called during parsing, create new QDateTime instances, which on Linux end up calling mktime(). Making these static (for the common case of LocalTime spec) improves performance dramatically, when parsing several date/times. tests/benchmarks/corelib/tools/qdatetime/ (after fixing it to actually parse a valid date/time) says: RESULT : tst_QDateTime::fromString(): - 36,742,060 instruction reads per iteration (total: 36,742,060, iterations: 1) + 24,230,060 instruction reads per iteration (total: 24,230,060, iterations: 1) Change-Id: I0c3931285475bf19a5be8cba1486ed07cbf5e134 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>		2017-01-03 13:37:49 +00:00
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main.cpp	QDateTime::fromString(): improve performance by 33%	2017-01-03 13:37:49 +00:00
qdatetime.pro	Remove QT_DISABLE_DEPRECATED_BEFORE=0 from tests not using deprecated API.	2015-09-01 16:57:46 +00:00