python.tachyon.cpu.diff.collapsed.md

Sampling profile diff

Collected 997 samples → 909 samples (-88 samples, -8.8%).

Category	Change	Delta	%	Samples
Ours	-4.6%	-30	64.9% → 67.9%	647 → 617
Garbage collector	-17.5%	-59	33.9% → 30.7%	338 → 279
Standard library	+8.3%	+1	1.2% → 1.4%	12 → 13

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
+10.0%	+9	9.0% → 10.9%	90 → 99	get_features_used	__init__.py
+800.0%	+8	0.1% → 1.0%	1 → 9	convert	pytree.py
+116.7%	+7	0.6% → 1.4%	6 → 13	LineGenerator.visit_default	linegen.py
+3.7%	+5	13.6% → 15.5%	136 → 141	Parser._addtoken	parse.py
+13.6%	+3	2.2% → 2.8%	22 → 25	Parser.pop	parse.py
+300.0%	+3	0.1% → 0.4%	1 → 4	_hugging_power_ops_line_to_string	linegen.py
+100.0%	+3	0.3% → 0.7%	3 → 6	_FuncBuilder.add_fns_to_class	dataclasses.py
+50.0%	+2	0.4% → 0.7%	4 → 6	Visitor.visit_default	nodes.py
+50.0%	+2	0.4% → 0.7%	4 → 6	LineGenerator.visit_power	linegen.py
new	+2	0.0% → 0.2%	0 → 2	__create_fn__.<locals>.__init__	<string>
new	+2	0.0% → 0.2%	0 → 2	Line.contains_implicit_multiline_string_with_comments	lines.py
+100.0%	+2	0.2% → 0.4%	2 → 4	BracketTracker.mark	brackets.py
new	+2	0.0% → 0.2%	0 → 2	EmptyLineTracker._maybe_empty_lines	lines.py
new	+2	0.0% → 0.2%	0 → 2	_first_right_hand_split	linegen.py
+200.0%	+2	0.1% → 0.3%	1 → 3	_stringify_ast_with_new_parent	parsing.py
new	+2	0.0% → 0.2%	0 → 2	_path_stat	<frozen importlib._bootstrap_external>
new	+2	0.0% → 0.2%	0 → 2	is_stub_suite	nodes.py
new	+1	0.0% → 0.1%	0 → 1	lib2to3_parse	parsing.py
+25.0%	+1	0.4% → 0.6%	4 → 5	check_stability_and_equivalence	__init__.py
new	+1	0.0% → 0.1%	0 → 1	LineGenerator.visit_funcdef	linegen.py

Ours

Change	Delta	%	Samples	Function	Location
+10.0%	+9	9.0% → 10.9%	90 → 99	get_features_used	__init__.py
+800.0%	+8	0.1% → 1.0%	1 → 9	convert	pytree.py
+116.7%	+7	0.6% → 1.4%	6 → 13	LineGenerator.visit_default	linegen.py
+3.7%	+5	13.6% → 15.5%	136 → 141	Parser._addtoken	parse.py
+13.6%	+3	2.2% → 2.8%	22 → 25	Parser.pop	parse.py
+300.0%	+3	0.1% → 0.4%	1 → 4	_hugging_power_ops_line_to_string	linegen.py
+100.0%	+3	0.3% → 0.7%	3 → 6	_FuncBuilder.add_fns_to_class	dataclasses.py
+50.0%	+2	0.4% → 0.7%	4 → 6	Visitor.visit_default	nodes.py
+50.0%	+2	0.4% → 0.7%	4 → 6	LineGenerator.visit_power	linegen.py
new	+2	0.0% → 0.2%	0 → 2	__create_fn__.<locals>.__init__	<string>
new	+2	0.0% → 0.2%	0 → 2	Line.contains_implicit_multiline_string_with_comments	lines.py
+100.0%	+2	0.2% → 0.4%	2 → 4	BracketTracker.mark	brackets.py
new	+2	0.0% → 0.2%	0 → 2	EmptyLineTracker._maybe_empty_lines	lines.py
new	+2	0.0% → 0.2%	0 → 2	_first_right_hand_split	linegen.py
+200.0%	+2	0.1% → 0.3%	1 → 3	_stringify_ast_with_new_parent	parsing.py
new	+2	0.0% → 0.2%	0 → 2	is_stub_suite	nodes.py
new	+1	0.0% → 0.1%	0 → 1	lib2to3_parse	parsing.py
+25.0%	+1	0.4% → 0.6%	4 → 5	check_stability_and_equivalence	__init__.py
new	+1	0.0% → 0.1%	0 → 1	LineGenerator.visit_funcdef	linegen.py
new	+1	0.0% → 0.1%	0 → 1	Base.__new__	pytree.py

Standard library

Change	Delta	%	Samples	Function	Location
new	+2	0.0% → 0.2%	0 → 2	_path_stat	<frozen importlib._bootstrap_external>
new	+1	0.0% → 0.1%	0 → 1	_find_and_load_unlocked	<frozen importlib._bootstrap>
+14.3%	+1	0.7% → 0.9%	7 → 8	_compile_bytecode	<frozen importlib._bootstrap_external>

Improvements

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

Change	Delta	%	Samples	Function	Location
-17.5%	-59	33.9% → 30.7%	338 → 279	(garbage collector)	<unknown>
-27.8%	-15	5.4% → 4.3%	54 → 39	Driver.parse_tokens	driver.py
-42.3%	-11	2.6% → 1.7%	26 → 15	Line.append	lines.py
-50.0%	-9	1.8% → 1.0%	18 → 9	normalize_invisible_parens	linegen.py
-50.0%	-5	1.0% → 0.6%	10 → 5	_format_str_once	__init__.py
-41.7%	-5	1.2% → 0.8%	12 → 7	convert_one_fmt_off_pair	comments.py
-30.8%	-4	1.3% → 1.0%	13 → 9	Parser.shift	parse.py
-80.0%	-4	0.5% → 0.1%	5 → 1	transform_line	linegen.py
-50.0%	-3	0.6% → 0.3%	6 → 3	LinesBlock.all_lines	lines.py
removed	-3	0.3% → 0.0%	3 → 0	bracket_split_build_line	linegen.py
-10.0%	-2	2.0%	20 → 18	Visitor.visit	nodes.py
-5.0%	-2	4.0% → 4.2%	40 → 38	parse	ast.py
-22.2%	-2	0.9% → 0.8%	9 → 7	assert_equivalent	__init__.py
-14.3%	-2	1.4% → 1.3%	14 → 12	Parser.addtoken	parse.py
removed	-2	0.2% → 0.0%	2 → 0	run_transformer	linegen.py
removed	-2	0.2% → 0.0%	2 → 0	Leaf.clone	pytree.py
removed	-2	0.2% → 0.0%	2 → 0	wrap_in_parentheses	nodes.py
removed	-2	0.2% → 0.0%	2 → 0	is_docstring	nodes.py
removed	-2	0.2% → 0.0%	2 → 0	generate_comments	comments.py
removed	-2	0.2% → 0.0%	2 → 0	normalize_trailing_prefix	comments.py

Ours

Change	Delta	%	Samples	Function	Location
-27.8%	-15	5.4% → 4.3%	54 → 39	Driver.parse_tokens	driver.py
-42.3%	-11	2.6% → 1.7%	26 → 15	Line.append	lines.py
-50.0%	-9	1.8% → 1.0%	18 → 9	normalize_invisible_parens	linegen.py
-50.0%	-5	1.0% → 0.6%	10 → 5	_format_str_once	__init__.py
-41.7%	-5	1.2% → 0.8%	12 → 7	convert_one_fmt_off_pair	comments.py
-30.8%	-4	1.3% → 1.0%	13 → 9	Parser.shift	parse.py
-80.0%	-4	0.5% → 0.1%	5 → 1	transform_line	linegen.py
-50.0%	-3	0.6% → 0.3%	6 → 3	LinesBlock.all_lines	lines.py
removed	-3	0.3% → 0.0%	3 → 0	bracket_split_build_line	linegen.py
-10.0%	-2	2.0%	20 → 18	Visitor.visit	nodes.py
-5.0%	-2	4.0% → 4.2%	40 → 38	parse	ast.py
-22.2%	-2	0.9% → 0.8%	9 → 7	assert_equivalent	__init__.py
-14.3%	-2	1.4% → 1.3%	14 → 12	Parser.addtoken	parse.py
removed	-2	0.2% → 0.0%	2 → 0	run_transformer	linegen.py
removed	-2	0.2% → 0.0%	2 → 0	Leaf.clone	pytree.py
removed	-2	0.2% → 0.0%	2 → 0	wrap_in_parentheses	nodes.py
removed	-2	0.2% → 0.0%	2 → 0	is_docstring	nodes.py
removed	-2	0.2% → 0.0%	2 → 0	generate_comments	comments.py
removed	-2	0.2% → 0.0%	2 → 0	normalize_trailing_prefix	comments.py
removed	-2	0.2% → 0.0%	2 → 0	type_repr	pytree.py

Garbage collector

Change	Delta	%	Samples	Function	Location
-17.5%	-59	33.9% → 30.7%	338 → 279	(garbage collector)	<unknown>

Standard library

Change	Delta	%	Samples	Function	Location
removed	-1	0.1% → 0.0%	1 → 0	_LoaderBasics.exec_module	<frozen importlib._bootstrap_external>
removed	-1	0.1% → 0.0%	1 → 0	FileLoader.get_data	<frozen importlib._bootstrap_external>
removed	-1	0.1% → 0.0%	1 → 0	ABCMeta.__new__	<frozen abc>

Total samples

Regressions

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

Change	Delta	%	Samples	Function	Location
+10.8%	+9	8.3% → 10.1%	83 → 92	LineGenerator.visit_power	linegen.py
+8.8%	+8	9.1% → 10.9%	91 → 99	get_features_used	__init__.py
+8.8%	+8	9.1% → 10.9%	91 → 99	detect_target_versions	__init__.py
+26.7%	+8	3.0% → 4.2%	30 → 38	TokenProxy.__next__	driver.py
+33.3%	+7	2.1% → 3.1%	21 → 28	convert	pytree.py
+2.9%	+6	21.0% → 23.7%	209 → 215	Parser._addtoken	parse.py
+12.5%	+4	3.2% → 4.0%	32 → 36	_call_with_frames_removed	<frozen importlib._bootstrap>
+12.5%	+4	3.2% → 4.0%	32 → 36	_LoaderBasics.exec_module	<frozen importlib._bootstrap_external>
+12.5%	+4	3.2% → 4.0%	32 → 36	_load_unlocked	<frozen importlib._bootstrap>
+12.5%	+4	3.2% → 4.0%	32 → 36	_find_and_load_unlocked	<frozen importlib._bootstrap>
+12.5%	+4	3.2% → 4.0%	32 → 36	_find_and_load	<frozen importlib._bootstrap>
+12.5%	+4	3.2% → 4.0%	32 → 36	<module>	__init__.py
+12.5%	+4	3.2% → 4.0%	32 → 36	_get_module_details	<frozen runpy>
+33.3%	+4	1.2% → 1.8%	12 → 16	EmptyLineTracker.maybe_empty_lines	lines.py
+133.3%	+4	0.3% → 0.8%	3 → 7	_process_class	dataclasses.py
+133.3%	+4	0.3% → 0.8%	3 → 7	dataclass.<locals>.wrap	dataclasses.py
+7.3%	+3	4.1% → 4.8%	41 → 44	generate_tokens	tokenize.py
+8.1%	+3	3.7% → 4.4%	37 → 40	Parser.pop	parse.py
+100.0%	+3	0.3% → 0.7%	3 → 6	_FuncBuilder.add_fns_to_class	dataclasses.py
+300.0%	+3	0.1% → 0.4%	1 → 4	Logger.debug	__init__.py

Ours

Change	Delta	%	Samples	Function	Location
+10.8%	+9	8.3% → 10.1%	83 → 92	LineGenerator.visit_power	linegen.py
+8.8%	+8	9.1% → 10.9%	91 → 99	get_features_used	__init__.py
+8.8%	+8	9.1% → 10.9%	91 → 99	detect_target_versions	__init__.py
+26.7%	+8	3.0% → 4.2%	30 → 38	TokenProxy.__next__	driver.py
+33.3%	+7	2.1% → 3.1%	21 → 28	convert	pytree.py
+2.9%	+6	21.0% → 23.7%	209 → 215	Parser._addtoken	parse.py
+12.5%	+4	3.2% → 4.0%	32 → 36	<module>	__init__.py
+33.3%	+4	1.2% → 1.8%	12 → 16	EmptyLineTracker.maybe_empty_lines	lines.py
+133.3%	+4	0.3% → 0.8%	3 → 7	_process_class	dataclasses.py
+133.3%	+4	0.3% → 0.8%	3 → 7	dataclass.<locals>.wrap	dataclasses.py
+7.3%	+3	4.1% → 4.8%	41 → 44	generate_tokens	tokenize.py
+8.1%	+3	3.7% → 4.4%	37 → 40	Parser.pop	parse.py
+100.0%	+3	0.3% → 0.7%	3 → 6	_FuncBuilder.add_fns_to_class	dataclasses.py
+300.0%	+3	0.1% → 0.4%	1 → 4	Logger.debug	__init__.py
+75.0%	+3	0.4% → 0.8%	4 → 7	BracketTracker.mark	brackets.py
+300.0%	+3	0.1% → 0.4%	1 → 4	EmptyLineTracker._maybe_empty_lines	lines.py
new	+3	0.0% → 0.3%	0 → 3	LineGenerator.visit_factor	linegen.py
+100.0%	+2	0.2% → 0.4%	2 → 4	Line.contains_implicit_multiline_string_with_comments	lines.py
+200.0%	+2	0.1% → 0.3%	1 → 3	<module>	agg.py
+66.7%	+2	0.3% → 0.6%	3 → 5	<module>	cache.py

Standard library

Change	Delta	%	Samples	Function	Location
+12.5%	+4	3.2% → 4.0%	32 → 36	_call_with_frames_removed	<frozen importlib._bootstrap>
+12.5%	+4	3.2% → 4.0%	32 → 36	_LoaderBasics.exec_module	<frozen importlib._bootstrap_external>
+12.5%	+4	3.2% → 4.0%	32 → 36	_load_unlocked	<frozen importlib._bootstrap>
+12.5%	+4	3.2% → 4.0%	32 → 36	_find_and_load_unlocked	<frozen importlib._bootstrap>
+12.5%	+4	3.2% → 4.0%	32 → 36	_find_and_load	<frozen importlib._bootstrap>
+12.5%	+4	3.2% → 4.0%	32 → 36	_get_module_details	<frozen runpy>
new	+3	0.0% → 0.3%	0 → 3	_path_isfile	<frozen importlib._bootstrap_external>
new	+3	0.0% → 0.3%	0 → 3	FileFinder.find_spec	<frozen importlib._bootstrap_external>
new	+3	0.0% → 0.3%	0 → 3	PathFinder._get_spec	<frozen importlib._bootstrap_external>
new	+3	0.0% → 0.3%	0 → 3	PathFinder.find_spec	<frozen importlib._bootstrap_external>
new	+3	0.0% → 0.3%	0 → 3	_find_spec	<frozen importlib._bootstrap>
+28.6%	+2	0.7% → 1.0%	7 → 9	_compile_bytecode	<frozen importlib._bootstrap_external>
+50.0%	+2	0.4% → 0.7%	4 → 6	_handle_fromlist	<frozen importlib._bootstrap>
new	+2	0.0% → 0.2%	0 → 2	_path_stat	<frozen importlib._bootstrap_external>
new	+2	0.0% → 0.2%	0 → 2	_path_is_mode_type	<frozen importlib._bootstrap_external>
+12.5%	+1	0.8% → 1.0%	8 → 9	SourceLoader.get_code	<frozen importlib._bootstrap_external>
+50.0%	+1	0.2% → 0.3%	2 → 3	ExtensionFileLoader.exec_module	<frozen importlib._bootstrap_external>

Improvements

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

Change	Delta	%	Samples	Function	Location
-9.5%	-92	96.8% → 96.0%	965 → 873	format_file_contents	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	format_file_in_place	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	reformat_one	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	main	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	pass_context.<locals>.new_func	decorators.py
-9.5%	-92	96.8% → 96.0%	965 → 873	Context.invoke	core.py
-9.5%	-92	96.8% → 96.0%	965 → 873	Command.invoke	core.py
-9.5%	-92	96.8% → 96.0%	965 → 873	Command.main	core.py
-9.5%	-92	96.8% → 96.0%	965 → 873	Command.__call__	core.py
-9.5%	-92	96.8% → 96.0%	965 → 873	patched_main	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	<module>	__main__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	_run_module_code	<frozen runpy>
-10.0%	-89	88.9% → 87.7%	886 → 797	_format_str_once	__init__.py
-8.8%	-88	100.0%	997 → 909	_run_code	<frozen runpy>
-8.8%	-88	100.0%	997 → 909	run_module	<frozen runpy>
-8.8%	-88	100.0%	997 → 909	_run_module_as_main	<frozen runpy>
-14.8%	-75	50.8% → 47.4%	506 → 431	check_stability_and_equivalence	__init__.py
-16.8%	-73	43.5% → 39.7%	434 → 361	assert_stable	__init__.py
-11.7%	-62	53.1% → 51.4%	529 → 467	Driver.parse_tokens	driver.py
-11.7%	-62	53.2% → 51.5%	530 → 468	Driver.parse_string	driver.py

Ours

Change	Delta	%	Samples	Function	Location
-9.5%	-92	96.8% → 96.0%	965 → 873	format_file_contents	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	format_file_in_place	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	reformat_one	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	main	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	pass_context.<locals>.new_func	decorators.py
-9.5%	-92	96.8% → 96.0%	965 → 873	Context.invoke	core.py
-9.5%	-92	96.8% → 96.0%	965 → 873	Command.invoke	core.py
-9.5%	-92	96.8% → 96.0%	965 → 873	Command.main	core.py
-9.5%	-92	96.8% → 96.0%	965 → 873	Command.__call__	core.py
-9.5%	-92	96.8% → 96.0%	965 → 873	patched_main	__init__.py
-9.5%	-92	96.8% → 96.0%	965 → 873	<module>	__main__.py
-10.0%	-89	88.9% → 87.7%	886 → 797	_format_str_once	__init__.py
-14.8%	-75	50.8% → 47.4%	506 → 431	check_stability_and_equivalence	__init__.py
-16.8%	-73	43.5% → 39.7%	434 → 361	assert_stable	__init__.py
-11.7%	-62	53.1% → 51.4%	529 → 467	Driver.parse_tokens	driver.py
-11.7%	-62	53.2% → 51.5%	530 → 468	Driver.parse_string	driver.py
-11.5%	-61	53.2% → 51.6%	530 → 469	lib2to3_parse	parsing.py
-3.7%	-17	46.0% → 48.6%	459 → 442	format_str	__init__.py
-29.2%	-14	4.8% → 3.7%	48 → 34	transform_line	linegen.py
-7.6%	-13	17.3% → 17.5%	172 → 159	Visitor.visit_default	nodes.py

Garbage collector

Change	Delta	%	Samples	Function	Location
-17.5%	-59	33.9% → 30.7%	338 → 279	(garbage collector)	<unknown>

Standard library

Change	Delta	%	Samples	Function	Location
-9.5%	-92	96.8% → 96.0%	965 → 873	_run_module_code	<frozen runpy>
-8.8%	-88	100.0%	997 → 909	_run_code	<frozen runpy>
-8.8%	-88	100.0%	997 → 909	run_module	<frozen runpy>
-8.8%	-88	100.0%	997 → 909	_run_module_as_main	<frozen runpy>
removed	-1	0.1% → 0.0%	1 → 0	FileLoader.get_data	<frozen importlib._bootstrap_external>
removed	-1	0.1% → 0.0%	1 → 0	ABCMeta.__new__	<frozen abc>