python.tachyon.all-threads.diff.collapsed.md

Sampling profile diff

Collected 981 samples → 975 samples (-6 samples, -0.6%).

Category	Change	Delta	%	Samples
Ours	-1.7%	-12	70.5% → 69.7%	692 → 680
Garbage collector	+1.8%	+5	28.1% → 28.8%	276 → 281
Standard library	+7.7%	+1	1.3% → 1.4%	13 → 14

Hottest functions

Self samples

Regressions

Functions with the largest increase in samples taken directly in the function body, excluding callees.

Change	Delta	%	Samples	Function	Location
+71.4%	+10	1.4% → 2.5%	14 → 24	_stringify_ast	parsing.py
+44.4%	+8	1.8% → 2.7%	18 → 26	Visitor.visit	nodes.py
+140.0%	+7	0.5% → 1.2%	5 → 12	Visitor.visit_default	nodes.py
+41.2%	+7	1.7% → 2.5%	17 → 24	Parser.shift	parse.py
+600.0%	+6	0.1% → 0.7%	1 → 7	Parser.classify	parse.py
+1.8%	+5	28.1% → 28.8%	276 → 281	(garbage collector)	<unknown>
+125.0%	+5	0.4% → 0.9%	4 → 9	LineGenerator.visit_power	linegen.py
+4.4%	+4	9.3% → 9.7%	91 → 95	get_features_used	__init__.py
+17.4%	+4	2.3% → 2.8%	23 → 27	Parser.pop	parse.py
+80.0%	+4	0.5% → 0.9%	5 → 9	LineGenerator.visit_simple_stmt	linegen.py
+42.9%	+3	0.7% → 1.0%	7 → 10	Parser.push	parse.py
+75.0%	+3	0.4% → 0.7%	4 → 7	LinesBlock.all_lines	lines.py
+150.0%	+3	0.2% → 0.5%	2 → 5	whitespace	nodes.py
+50.0%	+2	0.4% → 0.6%	4 → 6	format_str	__init__.py
+20.0%	+2	1.0% → 1.2%	10 → 12	Parser.addtoken	parse.py
new	+2	0.0% → 0.2%	0 → 2	Base.__new__	pytree.py
+40.0%	+2	0.5% → 0.7%	5 → 7	_stringify_ast_with_new_parent	parsing.py
+50.0%	+2	0.4% → 0.6%	4 → 6	wrap_in_parentheses	nodes.py
+200.0%	+2	0.1% → 0.3%	1 → 3	hug_power_op	trans.py
new	+2	0.0% → 0.2%	0 → 2	Line.__str__	lines.py

Ours

Change	Delta	%	Samples	Function	Location
+71.4%	+10	1.4% → 2.5%	14 → 24	_stringify_ast	parsing.py
+44.4%	+8	1.8% → 2.7%	18 → 26	Visitor.visit	nodes.py
+140.0%	+7	0.5% → 1.2%	5 → 12	Visitor.visit_default	nodes.py
+41.2%	+7	1.7% → 2.5%	17 → 24	Parser.shift	parse.py
+600.0%	+6	0.1% → 0.7%	1 → 7	Parser.classify	parse.py
+125.0%	+5	0.4% → 0.9%	4 → 9	LineGenerator.visit_power	linegen.py
+4.4%	+4	9.3% → 9.7%	91 → 95	get_features_used	__init__.py
+17.4%	+4	2.3% → 2.8%	23 → 27	Parser.pop	parse.py
+80.0%	+4	0.5% → 0.9%	5 → 9	LineGenerator.visit_simple_stmt	linegen.py
+42.9%	+3	0.7% → 1.0%	7 → 10	Parser.push	parse.py
+75.0%	+3	0.4% → 0.7%	4 → 7	LinesBlock.all_lines	lines.py
+150.0%	+3	0.2% → 0.5%	2 → 5	whitespace	nodes.py
+50.0%	+2	0.4% → 0.6%	4 → 6	format_str	__init__.py
+20.0%	+2	1.0% → 1.2%	10 → 12	Parser.addtoken	parse.py
new	+2	0.0% → 0.2%	0 → 2	Base.__new__	pytree.py
+40.0%	+2	0.5% → 0.7%	5 → 7	_stringify_ast_with_new_parent	parsing.py
+50.0%	+2	0.4% → 0.6%	4 → 6	wrap_in_parentheses	nodes.py
+200.0%	+2	0.1% → 0.3%	1 → 3	hug_power_op	trans.py
new	+2	0.0% → 0.2%	0 → 2	Line.__str__	lines.py
new	+2	0.0% → 0.2%	0 → 2	list_comments	comments.py

Garbage collector

Change	Delta	%	Samples	Function	Location
+1.8%	+5	28.1% → 28.8%	276 → 281	(garbage collector)	<unknown>

Standard library

Change	Delta	%	Samples	Function	Location
+100.0%	+1	0.1% → 0.2%	1 → 2	_call_with_frames_removed	<frozen importlib._bootstrap>
new	+1	0.0% → 0.1%	0 → 1	_HierarchicalLockManager.__enter__	<frozen importlib._bootstrap>
new	+1	0.0% → 0.1%	0 → 1	FileFinder._fill_cache	<frozen importlib._bootstrap_external>
new	+1	0.0% → 0.1%	0 → 1	ABCMeta.__new__	<frozen abc>
new	+1	0.0% → 0.1%	0 → 1	FileLoader.get_data	<frozen importlib._bootstrap_external>

Improvements

Functions with the largest decrease in samples taken directly in the function body, excluding callees.

Ours

Change	Delta	%	Samples	Function	Location
-21.8%	-37	17.3% → 13.6%	170 → 133	Parser._addtoken	parse.py
-23.8%	-10	4.3% → 3.3%	42 → 32	generate_tokens	tokenize.py
-23.1%	-6	2.7% → 2.1%	26 → 20	Line.append	lines.py
-10.4%	-5	4.9% → 4.4%	48 → 43	Driver.parse_tokens	driver.py
-55.6%	-5	0.9% → 0.4%	9 → 4	_format_str_once	__init__.py
-9.1%	-4	4.5% → 4.1%	44 → 40	parse	ast.py
-33.3%	-4	1.2% → 0.8%	12 → 8	assert_equivalent	__init__.py
-50.0%	-4	0.8% → 0.4%	8 → 4	line_to_string	lines.py
-60.0%	-3	0.5% → 0.2%	5 → 2	TokenProxy.__next__	driver.py
-50.0%	-2	0.4% → 0.2%	4 → 2	LineGenerator.visit_stmt	linegen.py
-22.2%	-2	0.9% → 0.7%	9 → 7	convert_one_fmt_off_pair	comments.py
-66.7%	-2	0.3% → 0.1%	3 → 1	generate_comments	comments.py
-33.3%	-2	0.6% → 0.4%	6 → 4	_FuncBuilder.add_fns_to_class	dataclasses.py
removed	-2	0.2% → 0.0%	2 → 0	_compile	_compiler.py
removed	-2	0.2% → 0.0%	2 → 0	Leaf.prefix	pytree.py
-50.0%	-1	0.2% → 0.1%	2 → 1	assert_stable	__init__.py
removed	-1	0.1% → 0.0%	1 → 0	max_delimiter_priority_in_atom	brackets.py
-12.5%	-1	0.8% → 0.7%	8 → 7	LineGenerator.visit_default	linegen.py
-50.0%	-1	0.2% → 0.1%	2 → 1	__create_fn__.<locals>.__init__	<string>
-50.0%	-1	0.2% → 0.1%	2 → 1	run_transformer	linegen.py

Standard library

Change	Delta	%	Samples	Function	Location
-11.1%	-1	0.9% → 0.8%	9 → 8	_compile_bytecode	<frozen importlib._bootstrap_external>
removed	-1	0.1% → 0.0%	1 → 0	SourceLoader.get_code	<frozen importlib._bootstrap_external>
removed	-1	0.1% → 0.0%	1 → 0	_LoaderBasics.exec_module	<frozen importlib._bootstrap_external>
removed	-1	0.1% → 0.0%	1 → 0	_find_spec	<frozen importlib._bootstrap>

Total samples

Regressions

Functions with the largest increase in total samples taken in the function and all its callees.

Change	Delta	%	Samples	Function	Location
+48.5%	+32	6.7% → 10.1%	66 → 98	LineGenerator.visit_simple_stmt	linegen.py
+5.8%	+27	47.5% → 50.6%	466 → 493	format_str	__init__.py
+17.1%	+25	14.9% → 17.5%	146 → 171	Visitor.visit	nodes.py
+17.1%	+25	14.9% → 17.5%	146 → 171	LineGenerator.visit_default	linegen.py
+16.4%	+24	14.9% → 17.4%	146 → 170	Visitor.visit_default	nodes.py
+16.9%	+24	14.5% → 17.0%	142 → 166	LineGenerator.visit_suite	linegen.py
+15.2%	+22	14.8% → 17.1%	145 → 167	LineGenerator.visit_stmt	linegen.py
+15.8%	+22	14.2% → 16.5%	139 → 161	LineGenerator.visit_funcdef	linegen.py
+46.2%	+12	2.7% → 3.9%	26 → 38	Parser.shift	parse.py
+63.2%	+12	1.9% → 3.2%	19 → 31	_stringify_ast	parsing.py
+28.1%	+9	3.3% → 4.2%	32 → 41	LineGenerator.visit_power	linegen.py
+47.4%	+9	1.9% → 2.9%	19 → 28	_stringify_ast_with_new_parent	parsing.py
+7.8%	+6	7.8% → 8.5%	77 → 83	assert_equivalent	__init__.py
+46.2%	+6	1.3% → 1.9%	13 → 19	convert	pytree.py
+600.0%	+6	0.1% → 0.7%	1 → 7	Parser.classify	parse.py
+1.8%	+5	28.1% → 28.8%	276 → 281	(garbage collector)	<unknown>
+11.1%	+5	4.6% → 5.1%	45 → 50	normalize_invisible_parens	linegen.py
+5.5%	+5	9.3% → 9.8%	91 → 96	get_features_used	__init__.py
+5.5%	+5	9.3% → 9.8%	91 → 96	detect_target_versions	__init__.py
+19.2%	+5	2.7% → 3.2%	26 → 31	Parser.pop	parse.py

Ours

Change	Delta	%	Samples	Function	Location
+48.5%	+32	6.7% → 10.1%	66 → 98	LineGenerator.visit_simple_stmt	linegen.py
+5.8%	+27	47.5% → 50.6%	466 → 493	format_str	__init__.py
+17.1%	+25	14.9% → 17.5%	146 → 171	Visitor.visit	nodes.py
+17.1%	+25	14.9% → 17.5%	146 → 171	LineGenerator.visit_default	linegen.py
+16.4%	+24	14.9% → 17.4%	146 → 170	Visitor.visit_default	nodes.py
+16.9%	+24	14.5% → 17.0%	142 → 166	LineGenerator.visit_suite	linegen.py
+15.2%	+22	14.8% → 17.1%	145 → 167	LineGenerator.visit_stmt	linegen.py
+15.8%	+22	14.2% → 16.5%	139 → 161	LineGenerator.visit_funcdef	linegen.py
+46.2%	+12	2.7% → 3.9%	26 → 38	Parser.shift	parse.py
+63.2%	+12	1.9% → 3.2%	19 → 31	_stringify_ast	parsing.py
+28.1%	+9	3.3% → 4.2%	32 → 41	LineGenerator.visit_power	linegen.py
+47.4%	+9	1.9% → 2.9%	19 → 28	_stringify_ast_with_new_parent	parsing.py
+7.8%	+6	7.8% → 8.5%	77 → 83	assert_equivalent	__init__.py
+46.2%	+6	1.3% → 1.9%	13 → 19	convert	pytree.py
+600.0%	+6	0.1% → 0.7%	1 → 7	Parser.classify	parse.py
+11.1%	+5	4.6% → 5.1%	45 → 50	normalize_invisible_parens	linegen.py
+5.5%	+5	9.3% → 9.8%	91 → 96	get_features_used	__init__.py
+5.5%	+5	9.3% → 9.8%	91 → 96	detect_target_versions	__init__.py
+19.2%	+5	2.7% → 3.2%	26 → 31	Parser.pop	parse.py
+166.7%	+5	0.3% → 0.8%	3 → 8	Base.__new__	pytree.py

Garbage collector

Change	Delta	%	Samples	Function	Location
+1.8%	+5	28.1% → 28.8%	276 → 281	(garbage collector)	<unknown>

Standard library

Change	Delta	%	Samples	Function	Location
+3.8%	+1	2.7% → 2.8%	26 → 27	_LoaderBasics.exec_module	<frozen importlib._bootstrap_external>
+3.8%	+1	2.7% → 2.8%	26 → 27	_load_unlocked	<frozen importlib._bootstrap>
+3.8%	+1	2.7% → 2.8%	26 → 27	_find_and_load_unlocked	<frozen importlib._bootstrap>
+3.8%	+1	2.7% → 2.8%	26 → 27	_find_and_load	<frozen importlib._bootstrap>
+3.8%	+1	2.7% → 2.8%	26 → 27	_call_with_frames_removed	<frozen importlib._bootstrap>
+3.8%	+1	2.7% → 2.8%	26 → 27	_get_module_details	<frozen runpy>
new	+1	0.0% → 0.1%	0 → 1	_HierarchicalLockManager.__enter__	<frozen importlib._bootstrap>
new	+1	0.0% → 0.1%	0 → 1	ExtensionFileLoader.exec_module	<frozen importlib._bootstrap_external>
new	+1	0.0% → 0.1%	0 → 1	FileFinder._fill_cache	<frozen importlib._bootstrap_external>
new	+1	0.0% → 0.1%	0 → 1	FileFinder.find_spec	<frozen importlib._bootstrap_external>
new	+1	0.0% → 0.1%	0 → 1	PathFinder._get_spec	<frozen importlib._bootstrap_external>
new	+1	0.0% → 0.1%	0 → 1	PathFinder.find_spec	<frozen importlib._bootstrap_external>
new	+1	0.0% → 0.1%	0 → 1	ABCMeta.__new__	<frozen abc>
new	+1	0.0% → 0.1%	0 → 1	FileLoader.get_data	<frozen importlib._bootstrap_external>

Improvements

Functions with the largest decrease in total samples taken in the function and all its callees.

Ours

Change	Delta	%	Samples	Function	Location
-9.9%	-40	41.3% → 37.4%	405 → 365	assert_stable	__init__.py
-7.1%	-38	54.2% → 50.7%	532 → 494	Driver.parse_tokens	driver.py
-7.1%	-38	54.2% → 50.7%	532 → 494	Driver.parse_string	driver.py
-7.1%	-38	54.2% → 50.7%	532 → 494	lib2to3_parse	parsing.py
-7.0%	-34	49.5% → 46.4%	486 → 452	check_stability_and_equivalence	__init__.py
-6.3%	-17	27.3% → 25.7%	268 → 251	Parser.addtoken	parse.py
-1.6%	-14	88.2% → 87.3%	865 → 851	_format_str_once	__init__.py
-5.9%	-14	24.4% → 23.1%	239 → 225	Parser._addtoken	parse.py
-23.4%	-11	4.8% → 3.7%	47 → 36	generate_tokens	tokenize.py
-0.7%	-7	97.0% → 96.9%	952 → 945	format_file_contents	__init__.py
-0.7%	-7	97.2% → 97.1%	954 → 947	format_file_in_place	__init__.py
-0.7%	-7	97.2% → 97.1%	954 → 947	reformat_one	__init__.py
-0.7%	-7	97.2% → 97.1%	954 → 947	main	__init__.py
-0.7%	-7	97.2% → 97.1%	954 → 947	pass_context.<locals>.new_func	decorators.py
-0.7%	-7	97.2% → 97.1%	954 → 947	Context.invoke	core.py
-0.7%	-7	97.2% → 97.1%	954 → 947	Command.invoke	core.py
-0.7%	-7	97.3% → 97.2%	955 → 948	Command.main	core.py
-0.7%	-7	97.3% → 97.2%	955 → 948	Command.__call__	core.py
-0.7%	-7	97.3% → 97.2%	955 → 948	patched_main	__init__.py
-0.7%	-7	97.3% → 97.2%	955 → 948	<module>	__main__.py

Standard library

Change	Delta	%	Samples	Function	Location
-0.7%	-7	97.3% → 97.2%	955 → 948	_run_module_code	<frozen runpy>
-0.6%	-6	100.0%	981 → 975	_run_code	<frozen runpy>
-0.6%	-6	100.0%	981 → 975	run_module	<frozen runpy>
-0.6%	-6	100.0%	981 → 975	_run_module_as_main	<frozen runpy>
-11.1%	-1	0.9% → 0.8%	9 → 8	_compile_bytecode	<frozen importlib._bootstrap_external>
-10.0%	-1	1.0% → 0.9%	10 → 9	SourceLoader.get_code	<frozen importlib._bootstrap_external>
-14.3%	-1	0.7% → 0.6%	7 → 6	_handle_fromlist	<frozen importlib._bootstrap>