thread_pthread.c (gvl_yield): do ubf wakeups when uncontended
Not having contention for GVL could mean everybody else is stuck in blocking region without GVL, so we kick the ubf list in that case.
I expect this to fix test_thread_fd_close timeout: http://ci.rvm.jp/results/trunk-test@ruby-sky3/1173398
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64133 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
thread_pthread.c (gvl_yield): do ubf wakeups when uncontended
Not having contention for GVL could mean everybody else is stuck
in blocking region without GVL, so we kick the ubf list in that
case.
I expect this to fix test_thread_fd_close timeout:
http://ci.rvm.jp/results/trunk-test@ruby-sky3/1173398
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64133 b2dd03c8-39d4-4d8f-98ff-823fe69b080e