check_performance (CXX): Add -DNOTHREAD.
* scripts/check_performance (CXX): Add -DNOTHREAD.
* testsuite/performance/20_util/allocator/insert.cc: Integrate
threaded tests from insert_insert.cc. Tweak iterations,
remove special cases.
* testsuite/performance/20_util/allocator/insert_insert.cc:
Make all tests single-threaded. Tweak iterations.
* testsuite/performance/20_util/allocator/map_thread.cc:
Tweak iterations.
* testsuite/performance/20_util/allocator/producer_consumer.cc:
Likewise.
From-SVN: r77388