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authorko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-04-04 08:49:17 +0000
committerko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-04-04 08:49:17 +0000
commit02f7507453f8b7d5e053620d06609ce4bc089a53 (patch)
treeda88c874e8e3eaeade9763dfee0a187c7ef66d40
parent3287bad257e01a01632535743c94c0a5328ce926 (diff)
downloadruby-02f7507453f8b7d5e053620d06609ce4bc089a53.tar.gz
* gc.c: change deafult value of
RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO 0.3 -> 0.2 RUBY_GC_HEAP_FREE_SLOTS_MAX_RATIO 0.8 -> 0.65 These values are same as Ruby 2.0.0. This change cause GC counts. However, generational GC reduced each (minor) GC time and increase memory locality. So that not so big impact on my benchmarking results. (surprizingly, this fix speed up programs on some cases) You can change these values by environment variables if you feel wrong. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54482 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r--ChangeLog17
-rw-r--r--gc.c4
2 files changed, 19 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index 8120a3d9ba..a3927b1669 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,20 @@
+Mon Apr 4 17:43:45 2016 Koichi Sasada <ko1@atdot.net>
+
+ * gc.c: change deafult value of
+ RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO 0.3 -> 0.2
+ RUBY_GC_HEAP_FREE_SLOTS_MAX_RATIO 0.8 -> 0.65
+
+ These values are same as Ruby 2.0.0.
+
+ This change cause GC counts.
+ However, generational GC reduced each (minor) GC time and
+ increase memory locality. So that not so big impact on my
+ benchmarking results.
+ (surprizingly, this fix speed up programs on some cases)
+
+ You can change these values by environment variables
+ if you feel wrong.
+
Mon Apr 4 17:36:52 2016 Koichi Sasada <ko1@atdot.net>
* gc.c (get_envparam_double): take an upper_bound.
diff --git a/gc.c b/gc.c
index 66bacbcb5f..2baf7a8665 100644
--- a/gc.c
+++ b/gc.c
@@ -118,13 +118,13 @@ rb_gc_guarded_ptr_val(volatile VALUE *ptr, VALUE val)
#endif
#ifndef GC_HEAP_FREE_SLOTS_MIN_RATIO
-#define GC_HEAP_FREE_SLOTS_MIN_RATIO 0.30
+#define GC_HEAP_FREE_SLOTS_MIN_RATIO 0.20
#endif
#ifndef GC_HEAP_FREE_SLOTS_GOAL_RATIO
#define GC_HEAP_FREE_SLOTS_GOAL_RATIO 0.40
#endif
#ifndef GC_HEAP_FREE_SLOTS_MAX_RATIO
-#define GC_HEAP_FREE_SLOTS_MAX_RATIO 0.80
+#define GC_HEAP_FREE_SLOTS_MAX_RATIO 0.65
#endif
#ifndef GC_MALLOC_LIMIT_MIN