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Diffstat (limited to 'benchmark/vm_thread_condvar2.yml')
-rw-r--r-- | benchmark/vm_thread_condvar2.yml | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/benchmark/vm_thread_condvar2.yml b/benchmark/vm_thread_condvar2.yml new file mode 100644 index 0000000000..5b5798c7c5 --- /dev/null +++ b/benchmark/vm_thread_condvar2.yml @@ -0,0 +1,39 @@ +prelude: | + # many threads, one mutex, many condvars +benchmark: + vm_thread_condvar2: | + require 'thread' + m = Mutex.new + cv1 = ConditionVariable.new + cv2 = ConditionVariable.new + max = 1000 + n = 100 + waiting = 0 + scvs = [] + waiters = n.times.map do |i| + start_cv = ConditionVariable.new + scvs << start_cv + start_mtx = Mutex.new + start_mtx.synchronize do + th = Thread.new(start_mtx, start_cv) do |sm, scv| + m.synchronize do + sm.synchronize { scv.signal } + max.times do + cv2.signal if (waiting += 1) == n + cv1.wait(m) + end + end + end + start_cv.wait(start_mtx) + th + end + end + m.synchronize do + max.times do + cv2.wait(m) until waiting == n + waiting = 0 + cv1.broadcast + end + end + waiters.each(&:join) +loop_count: 1 |