diff options
Diffstat (limited to 'test/ruby')
| -rw-r--r-- | test/ruby/test_gc.rb | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/test/ruby/test_gc.rb b/test/ruby/test_gc.rb index 7c49f0f5bb..f0ab0b0c1a 100644 --- a/test/ruby/test_gc.rb +++ b/test/ruby/test_gc.rb @@ -636,8 +636,19 @@ class TestGc < Test::Unit::TestCase # Warmup to make sure heap stabilizes 1_000_000.times { Object.new } - before_stats = GC.stat + # We need to pre-allocate all the hashes for GC.stat calls, because + # otherwise the call to GC.stat/GC.stat_heap itself could cause a new + # page to be allocated and the before/after assertions will fail + before_stats = {} + after_stats = {} + # stat_heap needs a hash of hashes for each heap; easiest way to get the + # right shape for that is just to call stat_heap with no argument before_stat_heap = GC.stat_heap + after_stat_heap = GC.stat_heap + + # Now collect the actual stats + GC.stat before_stats + GC.stat_heap nil, before_stat_heap 1_000_000.times { Object.new } @@ -645,8 +656,8 @@ class TestGc < Test::Unit::TestCase # running a minor GC here will guarantee that GC will be complete GC.start(full_mark: false) - after_stats = GC.stat - after_stat_heap = GC.stat_heap + GC.stat after_stats + GC.stat_heap nil, after_stat_heap # Debugging output to for failures in trunk-repeat50@phosphorus-docker debug_msg = "before_stats: #{before_stats}\nbefore_stat_heap: #{before_stat_heap}\nafter_stats: #{after_stats}\nafter_stat_heap: #{after_stat_heap}" |