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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 37 |
1 files changed, 37 insertions, 0 deletions
@@ -1,3 +1,40 @@ +Mon Jun 27 09:07:42 2011 Koichi Sasada <ko1@atdot.net> + + * thread_pthread.c: Stop polling in the timer thread when there are + no waiting thread. If there are 2 or more runnable threads, + the timer thread does polling. Avoid polling makes power save + for several computers (0.2W per a Ruby process, when I measured). + If outside-event such as signal or Thread#kill was occuerred + when the timer thread does not do polling, then wake-up + the timer thread using communication-pipe (the timer thread + waits this communication-pipe with select(2)). + The discussion about this modification can be found from the post + [ruby-core:33456] and other related posts. + Note that Eric Wong and KOSAKI Motohiro give us the huge + contributions for this modification. Thanks. + + * thread_pthread.c (rb_thread_wakeup_timer_thread): add a function. + This function wakes up the timer thread using communication-pipe. + + * thread.c (rb_thread_stop_timer_thread): add a parameter which + specify closing communication-pipe or not. + + * thread.c (rb_thread_terminate_all): do not stop timer thread here + (ruby_cleanup() terminate timer thread). + + * signal.c: wake up timer thread using + rb_thread_wakeup_timer_thread() from signal handler. + + * eval.c (ruby_cleanup): use rb_thread_stop_timer_thread(1). + + * process.c: use rb_thread_stop_timer_thread(0) + (reuse communication-pipe). + + * thread_win32.c (rb_thread_wakeup_timer_thread): add a dummy + function. + + * vm_core.h: add and fix decl. of functions. + Mon Jun 27 08:01:19 2011 Tadayoshi Funaba <tadf@dotrb.org> * ext/date/date_parse.c: should use ALLOCA_N. |