Add a TestLoad setting to CTest that can be set via a new --test-load
command-line option, CTEST_TEST_LOAD variable, or TEST_LOAD option to
the ctest_test command. Teach cmCTestMultiProcessHandler to measure
the CPU load and avoid starting tests that may take more than the
spare load currently available. The expression
<current_load> + <test_processors> <= <max-load>
must be true to start a new test.
Co-Author: Zack Galbreath <zack.galbreath@kitware.com>
Use the KWSys Process "MergeOutput" option to give each test child
process the same pipe for both stdout and stderr. This allows natural
merging of stdout and stderr together instead of merging on arbitrary
buffered read boundaries as before.
Betsy McPhail
Brad King
Stephen Kelly
Bill Hoffman