v4: - cherrypick Emilio's patch to add "-m" parameter to atomic_add-bench tool. - use inline functions [Emilio]
Micro benchmark result on "taskset -c 0 atomic_add-bench -m": |--------+---------------------+------------------------| | | with --enable-debug | without --enable-debug | |--------+---------------------+------------------------| | Before | 20 Mops/s | 34 Mops/s | | After | 18 Mops/s | 34 Mops/s | |--------+---------------------+------------------------| v3: - note down owner for every locking operations [Emilio] - let Windows use it too [Emilio] - added two more patches: patch 1 & 3. Patch 1 generalize some common hooks for qemu-thread implementation for both POSIX and Windows. Patch 2 introduces the new debugging facility. Patch 3 turns on mutex debugging automatically for "--enable-debug". I suppose most developers are with that so we naturally benefit from it. Please review. Thanks. Emilio G. Cota (1): tests/atomic_add-bench: add -m option to use mutexes Peter Xu (3): qemu-thread: introduce qemu-thread-common.h QemuMutex: support --enable-debug-mutex configure: enable debug-mutex if debug enabled configure | 11 +++++++++++ include/qemu/thread-posix.h | 4 ++++ include/qemu/thread-win32.h | 4 ++++ util/qemu-thread-common.h | 46 +++++++++++++++++++++++++++++++++++++++++++++ tests/atomic_add-bench.c | 19 +++++++++++++++++-- util/qemu-thread-posix.c | 17 +++++++---------- util/qemu-thread-win32.c | 15 +++++++-------- 7 files changed, 96 insertions(+), 20 deletions(-) create mode 100644 util/qemu-thread-common.h -- 2.14.3