diff options
author | Koichi Sasada <ko1@atdot.net> | 2020-01-08 16:14:01 +0900 |
---|---|---|
committer | Koichi Sasada <ko1@atdot.net> | 2020-02-22 09:58:59 +0900 |
commit | b9007b6c548f91e88fd3f2ffa23de740431fa969 (patch) | |
tree | 1746393d1c5f704e8dc7e0a458198264062273bf /test/-ext- | |
parent | f2286925f08406bc857f7b03ad6779a5d61443ae (diff) |
Introduce disposable call-cache.
This patch contains several ideas:
(1) Disposable inline method cache (IMC) for race-free inline method cache
* Making call-cache (CC) as a RVALUE (GC target object) and allocate new
CC on cache miss.
* This technique allows race-free access from parallel processing
elements like RCU.
(2) Introduce per-Class method cache (pCMC)
* Instead of fixed-size global method cache (GMC), pCMC allows flexible
cache size.
* Caching CCs reduces CC allocation and allow sharing CC's fast-path
between same call-info (CI) call-sites.
(3) Invalidate an inline method cache by invalidating corresponding method
entries (MEs)
* Instead of using class serials, we set "invalidated" flag for method
entry itself to represent cache invalidation.
* Compare with using class serials, the impact of method modification
(add/overwrite/delete) is small.
* Updating class serials invalidate all method caches of the class and
sub-classes.
* Proposed approach only invalidate the method cache of only one ME.
See [Feature #16614] for more details.
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/2888
Diffstat (limited to 'test/-ext-')
-rw-r--r-- | test/-ext-/tracepoint/test_tracepoint.rb | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/test/-ext-/tracepoint/test_tracepoint.rb b/test/-ext-/tracepoint/test_tracepoint.rb index 1fc1657f5b..4f480bb856 100644 --- a/test/-ext-/tracepoint/test_tracepoint.rb +++ b/test/-ext-/tracepoint/test_tracepoint.rb @@ -10,33 +10,25 @@ class TestTracepointObj < Test::Unit::TestCase end def test_tracks_objspace_events - result = Bug.tracepoint_track_objspace_events{ - Object.new - } - object_new_newobj = result[0] - result = EnvUtil.suppress_warning {eval(<<-EOS, nil, __FILE__, __LINE__+1)} Bug.tracepoint_track_objspace_events { 99 'abc' _="foobar" - Object.new nil } EOS newobj_count, free_count, gc_start_count, gc_end_mark_count, gc_end_sweep_count, *newobjs = *result - assert_equal 1 + object_new_newobj, newobj_count - assert_equal 1 + object_new_newobj, newobjs.size + assert_equal 1, newobj_count + assert_equal 1, newobjs.size assert_equal 'foobar', newobjs[0] - assert_equal Object, newobjs[1].class assert_operator free_count, :>=, 0 assert_operator gc_start_count, :==, gc_end_mark_count assert_operator gc_start_count, :>=, gc_end_sweep_count end def test_tracks_objspace_count - return stat1 = {} stat2 = {} GC.disable |