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Add debug output to test_thrashing_for_young_objects

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The test is failing only on trunk-repeat50@phosphorus-docker. This
commit adds some debugging output to debug the failure.
This commit is contained in:
Peter Zhu 2022-10-06 13:46:31 -04:00
parent 13e87e5049
commit 3df904d1a8
1 changed files with 8 additions and 5 deletions
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13
test/ruby/test_gc.rb
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@ -405,7 +405,7 @@ class TestGc < Test::Unit::TestCase
def test_thrashing_for_young_objects
# This test prevents bugs like [Bug #18929]
assert_separately %w[--disable-gem], __FILE__, __LINE__, <<-RUBY
assert_separately %w[--disable-gem], __FILE__, __LINE__, <<-'RUBY'
# Warmup to make sure heap stabilizes
1_000_000.times { Object.new }
@ -419,12 +419,15 @@ class TestGc < Test::Unit::TestCase
after_stats = GC.stat
# Debugging output to for failures in trunk-repeat50@phosphorus-docker
debug_msg = "before_stats: #{before_stats}\nafter_stats: #{after_stats}"
# Should not be thrashing in page creation
assert_equal before_stats[:heap_allocated_pages], after_stats[:heap_allocated_pages]
assert_equal 0, after_stats[:heap_tomb_pages]
assert_equal 0, after_stats[:total_freed_pages]
assert_equal before_stats[:heap_allocated_pages], after_stats[:heap_allocated_pages], debug_msg
assert_equal 0, after_stats[:heap_tomb_pages], debug_msg
assert_equal 0, after_stats[:total_freed_pages], debug_msg
# Only young objects, so should not trigger major GC
assert_equal before_stats[:major_gc_count], after_stats[:major_gc_count]
assert_equal before_stats[:major_gc_count], after_stats[:major_gc_count], debug_msg
RUBY
end