From 970d8cb6136837b78787c1d1744db5fca1348968 Mon Sep 17 00:00:00 2001 From: ko1 Date: Thu, 11 Sep 2014 08:46:59 +0000 Subject: * include/ruby/ruby.h, gc.c: add new internal events RUBY_INTERNAL_EVENT_GC_ENTER and RUBY_INTERNAL_EVENT_GC_EXIT. When invoking GC process, GC_ENTER event is called. When exiting from GC process, GC_EXIT event is called. Incremental GC (incremental marking and lazy sweep) can call these events many times. For example (minor marking): (1) GC_ENTER - (2) GC_START (minor GC) (minor marking) - (3) GC_END_MARK (start lazy sweep) (4) GC_EXIT (ruby process) (5) GC_ENTER (lazy sweep) (6) GC_EXIT (ruby process) (... repeat (5), (6)) (7) GC_ENTER (finish lazy sweep) - (8) GC_END_SWEEP (9) GC_EXIT 2nd example (incremental major marking): (1) GC_ENTER - (2) GC_START (minor GC) (start incremental marking) (3) GC_EXIT (ruby process) (4) GC_ENTER (incremental marking) (5) GC_EXIT (ruby process) (... repeat (4), (5)) (6) GC_ENTER (finish incremental marking) - (7) GC_END_MARK (start lazy sweep) (8) GC_EXIT (ruby process) (9) GC_ENTER (lazy sweep) (10) GC_EXIT (ruby process) (... repeat (9), (10)) (11) GC_ENTER (finish lazy marking) - (12) GC_STOP_SWEEP (13) GC_EXIT Thease internal events enable to measure GC pause time completely. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47528 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- gc.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'gc.c') diff --git a/gc.c b/gc.c index cd9ffe4513..0f74f80d5d 100644 --- a/gc.c +++ b/gc.c @@ -5966,6 +5966,7 @@ gc_enter(rb_objspace_t *objspace, const char *event) during_gc = TRUE; gc_report(1, objspace, "gc_entr: %s [%s]\n", event, gc_current_status(objspace)); gc_record(objspace, 0, event); + gc_event_hook(objspace, RUBY_INTERNAL_EVENT_GC_ENTER, 0); /* TODO: which parameter should be passed? */ } static inline void @@ -5973,6 +5974,7 @@ gc_exit(rb_objspace_t *objspace, const char *event) { if (RGENGC_CHECK_MODE) assert(during_gc != 0); + gc_event_hook(objspace, RUBY_INTERNAL_EVENT_GC_EXIT, 0); /* TODO: which parameter should be passsed? */ gc_record(objspace, 1, event); gc_report(1, objspace, "gc_exit: %s [%s]\n", event, gc_current_status(objspace)); during_gc = FALSE; -- cgit v1.2.3