Pystats results

benchmark: python_startup
fork: python
ref: e418fc3a6e7bade68ab5dfe72f14ddba28e6acb5
commit hash: e418fc3
commit date: 2024-05-25T21:01:36+01:00

Execution counts

Execution counts for Tier 1 instructions.

The "miss ratio" column shows the percentage of times the instruction executed that it deoptimized. When this happens, the base unspecialized instruction is not counted.

Name	Count	Self	Cumulative	Miss ratio
LOAD_FAST	68,080	21.6%	21.6%
LOAD_CONST	20,260	6.4%	28.0%
STORE_FAST	16,580	5.3%	33.3%
POP_JUMP_IF_FALSE	14,320	4.5%	37.8%
LOAD_GLOBAL_MODULE	12,440	3.9%	41.7%
RESUME_CHECK	9,740	3.1%	44.8%
LOAD_GLOBAL_BUILTIN	8,940	2.8%	47.7%	19.5%
LOAD_FAST_LOAD_FAST	8,200	2.6%	50.3%
LOAD_ATTR_INSTANCE_VALUE	7,880	2.5%	52.7%
LOAD_ATTR_MODULE	7,300	2.3%	55.1%
POP_TOP	7,280	2.3%	57.4%
STORE_ATTR_INSTANCE_VALUE	6,740	2.1%	59.5%
PUSH_NULL	5,940	1.9%	61.4%
TO_BOOL_BOOL	5,920	1.9%	63.3%
RETURN_VALUE	5,340	1.7%	65.0%
LOAD_ATTR	5,040	1.6%	66.6%
POP_JUMP_IF_NOT_NONE	4,620	1.5%	68.0%
RETURN_CONST	4,620	1.5%	69.5%
INTERPRETER_EXIT	4,220	1.3%	70.8%
COMPARE_OP_INT	3,800	1.2%	72.0%
CALL	3,640	1.2%	73.2%
NOP	3,520	1.1%	74.3%
LOAD_ATTR_METHOD_NO_DICT	3,360	1.1%	75.4%	13.1%
LOAD_DEREF	3,300	1.0%	76.4%
CALL_PY_EXACT_ARGS	3,300	1.0%	77.4%
LOAD_GLOBAL	3,180	1.0%	78.5%
TO_BOOL	2,920	0.9%	79.4%
CALL_BUILTIN_FAST	2,700	0.9%	80.2%
CALL_BUILTIN_FAST_WITH_KEYWORDS	2,700	0.9%	81.1%
POP_JUMP_IF_TRUE	2,460	0.8%	81.9%
POP_JUMP_IF_NONE	2,420	0.8%	82.6%
LOAD_ATTR_METHOD_WITH_VALUES	2,400	0.8%	83.4%
CALL_METHOD_DESCRIPTOR_FAST	2,160	0.7%	84.1%
STORE_ATTR	2,060	0.7%	84.7%
BUILD_TUPLE	1,980	0.6%	85.4%
CALL_ISINSTANCE	1,880	0.6%	86.0%
CALL_NON_PY_GENERAL	1,820	0.6%	86.5%
UNPACK_SEQUENCE_TWO_TUPLE	1,820	0.6%	87.1%
STORE_FAST_STORE_FAST	1,760	0.6%	87.7%
BINARY_OP	1,740	0.6%	88.2%
CALL_PY_GENERAL	1,600	0.5%	88.7%
JUMP_FORWARD	1,540	0.5%	89.2%
BUILD_LIST	1,320	0.4%	89.6%
CALL_FUNCTION_EX	1,320	0.4%	90.1%
DELETE_ATTR	1,320	0.4%	90.5%
BINARY_SLICE	1,100	0.3%	90.8%
COPY	1,100	0.3%	91.2%
MAKE_CELL	1,100	0.3%	91.5%
TO_BOOL_STR	1,080	0.3%	91.9%	20.4%
COMPARE_OP	1,020	0.3%	92.2%
CALL_BUILTIN_CLASS	1,000	0.3%	92.5%
TO_BOOL_NONE	1,000	0.3%	92.8%
BEFORE_WITH	880	0.3%	93.1%
BUILD_MAP	880	0.3%	93.4%
CALL_KW	880	0.3%	93.7%
COPY_FREE_VARS	880	0.3%	93.9%
DICT_MERGE	880	0.3%	94.2%
CALL_LEN	860	0.3%	94.5%
CALL_METHOD_DESCRIPTOR_O	800	0.3%	94.7%
TO_BOOL_INT	800	0.3%	95.0%
GET_ITER	700	0.2%	95.2%
SWAP	680	0.2%	95.4%
COMPARE_OP_STR	660	0.2%	95.6%	33.3%
EXTENDED_ARG	660	0.2%	95.8%
STORE_DEREF	660	0.2%	96.1%
RESUME	660	0.2%	96.3%
BINARY_OP_ADD_INT	660	0.2%	96.5%
BINARY_SUBSCR_LIST_INT	600	0.2%	96.7%
FOR_ITER_TUPLE	520	0.2%	96.8%
IS_OP	460	0.1%	97.0%
CHECK_EXC_MATCH	440	0.1%	97.1%
MAKE_FUNCTION	440	0.1%	97.3%
POP_EXCEPT	440	0.1%	97.4%
PUSH_EXC_INFO	440	0.1%	97.5%
RETURN_GENERATOR	440	0.1%	97.7%
SET_FUNCTION_ATTRIBUTE	440	0.1%	97.8%
YIELD_VALUE	440	0.1%	98.0%
CALL_BOUND_METHOD_EXACT_ARGS	400	0.1%	98.1%	100.0%
BINARY_SUBSCR_TUPLE_INT	400	0.1%	98.2%
CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS	400	0.1%	98.3%
CALL_METHOD_DESCRIPTOR_NOARGS	400	0.1%	98.5%
FOR_ITER_LIST	400	0.1%	98.6%
LOAD_ATTR_CLASS	400	0.1%	98.7%
LOAD_ATTR_METHOD_LAZY_DICT	400	0.1%	98.8%
LOAD_ATTR_SLOT	400	0.1%	99.0%
UNPACK_SEQUENCE	360	0.1%	99.1%
JUMP_BACKWARD	260	0.1%	99.2%
BINARY_OP_INPLACE_ADD_UNICODE	220	0.1%	99.2%
CALL_INTRINSIC_1	220	0.1%	99.3%
LIST_EXTEND	220	0.1%	99.4%
BINARY_OP_ADD_UNICODE	220	0.1%	99.4%
CALL_BOUND_METHOD_GENERAL	200	0.1%	99.5%	100.0%
BINARY_SUBSCR	200	0.1%	99.6%
CALL_STR_1	200	0.1%	99.6%
CALL_TUPLE_1	200	0.1%	99.7%
CALL_TYPE_1	200	0.1%	99.8%
STORE_SUBSCR_DICT	200	0.1%	99.8%
TO_BOOL_ALWAYS_TRUE	200	0.1%	99.9%
UNPACK_SEQUENCE_TUPLE	200	0.1%	99.9%
FOR_ITER	80	0.0%	100.0%
STORE_SUBSCR	40	0.0%	100.0%
CONTAINS_OP	40	0.0%	100.0%

Pair counts

Pair counts for top 100 opcode pairs

Pairs of specialized operations that deoptimize and are then followed by the corresponding unspecialized instruction are not counted as pairs.

Pair	Count	Self	Cumulative
LOAD_FAST LOAD_FAST	7,920	2.5%	2.5%
STORE_FAST LOAD_FAST	7,740	2.5%	5.0%
POP_JUMP_IF_FALSE LOAD_FAST	7,040	2.2%	7.2%
LOAD_FAST LOAD_ATTR_INSTANCE_VALUE	6,780	2.1%	9.3%
LOAD_FAST LOAD_CONST	6,400	2.0%	11.4%
LOAD_GLOBAL_MODULE LOAD_ATTR_MODULE	5,960	1.9%	13.3%
LOAD_FAST STORE_ATTR_INSTANCE_VALUE	5,820	1.8%	15.1%
LOAD_GLOBAL_BUILTIN LOAD_FAST	5,600	1.8%	16.9%
TO_BOOL_BOOL POP_JUMP_IF_FALSE	4,500	1.4%	18.3%
LOAD_ATTR_MODULE PUSH_NULL	4,300	1.4%	19.7%
COMPARE_OP_INT POP_JUMP_IF_FALSE	3,800	1.2%	20.9%
PUSH_NULL LOAD_FAST	3,740	1.2%	22.1%
RESUME_CHECK LOAD_FAST	3,700	1.2%	23.2%
LOAD_CONST LOAD_FAST	3,520	1.1%	24.3%
CACHE RESUME_CHECK	3,320	1.1%	25.4%
LOAD_CONST LOAD_CONST	3,080	1.0%	26.4%
RESUME_CHECK LOAD_GLOBAL_MODULE	2,960	0.9%	27.3%
STORE_FAST LOAD_GLOBAL_MODULE	2,900	0.9%	28.2%
CALL_PY_EXACT_ARGS RESUME_CHECK	2,900	0.9%	29.2%
LOAD_FAST POP_JUMP_IF_NOT_NONE	2,860	0.9%	30.1%
STORE_ATTR_INSTANCE_VALUE LOAD_FAST	2,860	0.9%	31.0%
LOAD_FAST LOAD_ATTR	2,760	0.9%	31.8%
LOAD_CONST COMPARE_OP_INT	2,700	0.9%	32.7%
POP_TOP LOAD_FAST	2,640	0.8%	33.5%
LOAD_CONST STORE_FAST	2,640	0.8%	34.4%
LOAD_FAST LOAD_ATTR_METHOD_NO_DICT	2,480	0.8%	35.2%
RETURN_CONST INTERPRETER_EXIT	2,200	0.7%	35.8%
LOAD_FAST CALL_BUILTIN_FAST_WITH_KEYWORDS	2,180	0.7%	36.5%
LOAD_FAST LOAD_ATTR_METHOD_WITH_VALUES	2,160	0.7%	37.2%
LOAD_FAST RETURN_VALUE	1,980	0.6%	37.9%
LOAD_FAST_LOAD_FAST LOAD_FAST	1,980	0.6%	38.5%
POP_JUMP_IF_NOT_NONE LOAD_FAST	1,980	0.6%	39.1%
LOAD_FAST LOAD_GLOBAL_BUILTIN	1,960	0.6%	39.7%
LOAD_ATTR_METHOD_NO_DICT LOAD_FAST	1,960	0.6%	40.3%
STORE_ATTR_INSTANCE_VALUE LOAD_CONST	1,800	0.6%	40.9%
CALL_ISINSTANCE TO_BOOL_BOOL	1,780	0.6%	41.5%
LOAD_FAST POP_JUMP_IF_NONE	1,760	0.6%	42.0%
LOAD_FAST CALL_METHOD_DESCRIPTOR_FAST	1,760	0.6%	42.6%
LOAD_GLOBAL_MODULE LOAD_FAST	1,680	0.5%	43.1%
UNPACK_SEQUENCE_TWO_TUPLE STORE_FAST_STORE_FAST	1,620	0.5%	43.6%
TO_BOOL POP_JUMP_IF_FALSE	1,600	0.5%	44.2%
LOAD_FAST CALL_PY_EXACT_ARGS	1,600	0.5%	44.7%
RETURN_VALUE INTERPRETER_EXIT	1,580	0.5%	45.2%
NOP LOAD_FAST	1,540	0.5%	45.6%
LOAD_GLOBAL_BUILTIN CALL_ISINSTANCE	1,420	0.5%	46.1%
TO_BOOL_BOOL POP_JUMP_IF_TRUE	1,420	0.5%	46.5%
LOAD_FAST DELETE_ATTR	1,320	0.4%	47.0%
LOAD_FAST_LOAD_FAST LOAD_FAST_LOAD_FAST	1,320	0.4%	47.4%
POP_JUMP_IF_FALSE LOAD_FAST_LOAD_FAST	1,320	0.4%	47.8%
POP_JUMP_IF_NONE LOAD_FAST	1,320	0.4%	48.2%
RETURN_CONST POP_TOP	1,320	0.4%	48.6%
STORE_FAST STORE_FAST	1,320	0.4%	49.1%
CALL_BUILTIN_FAST_WITH_KEYWORDS STORE_FAST	1,300	0.4%	49.5%
LOAD_FAST LOAD_GLOBAL_MODULE	1,260	0.4%	49.9%
POP_JUMP_IF_FALSE LOAD_GLOBAL_MODULE	1,260	0.4%	50.3%
LOAD_ATTR_INSTANCE_VALUE LOAD_FAST	1,240	0.4%	50.7%
RESUME_CHECK LOAD_GLOBAL_BUILTIN	1,240	0.4%	51.1%
LOAD_FAST STORE_ATTR	1,220	0.4%	51.4%
CALL_PY_GENERAL RESUME_CHECK	1,200	0.4%	51.8%
POP_TOP RETURN_CONST	1,100	0.3%	52.2%
LOAD_FAST_LOAD_FAST BUILD_TUPLE	1,100	0.3%	52.5%
POP_JUMP_IF_FALSE RETURN_CONST	1,100	0.3%	52.9%
POP_JUMP_IF_TRUE LOAD_FAST	1,100	0.3%	53.2%
STORE_FAST LOAD_CONST	1,100	0.3%	53.6%
PUSH_NULL CALL_NON_PY_GENERAL	1,080	0.3%	53.9%
LOAD_GLOBAL_MODULE TO_BOOL_BOOL	1,080	0.3%	54.2%
CALL_METHOD_DESCRIPTOR_FAST STORE_FAST	1,060	0.3%	54.6%
STORE_ATTR_INSTANCE_VALUE RETURN_CONST	1,040	0.3%	54.9%
LOAD_GLOBAL LOAD_GLOBAL_MODULE	1,000	0.3%	55.2%
LOAD_ATTR_INSTANCE_VALUE POP_JUMP_IF_NOT_NONE	1,000	0.3%	55.5%
LOAD_FAST CALL	920	0.3%	55.8%
LOAD_ATTR_INSTANCE_VALUE TO_BOOL_BOOL	900	0.3%	56.1%
DELETE_ATTR LOAD_FAST	880	0.3%	56.4%
DICT_MERGE CALL_FUNCTION_EX	880	0.3%	56.7%
JUMP_FORWARD LOAD_FAST	880	0.3%	57.0%
LOAD_CONST CALL_KW	880	0.3%	57.2%
LOAD_FAST COPY	880	0.3%	57.5%
LOAD_FAST TO_BOOL_STR	880	0.3%	57.8%
POP_JUMP_IF_NONE LOAD_CONST	880	0.3%	58.1%
RETURN_CONST STORE_FAST	880	0.3%	58.4%
STORE_FAST NOP	880	0.3%	58.6%
LOAD_FAST TO_BOOL	860	0.3%	58.9%
TO_BOOL_STR POP_JUMP_IF_FALSE	860	0.3%	59.2%
LOAD_FAST CALL_LEN	840	0.3%	59.4%
COPY_FREE_VARS RESUME_CHECK	820	0.3%	59.7%
CALL_BUILTIN_FAST STORE_FAST	820	0.3%	60.0%
NOP LOAD_GLOBAL_BUILTIN	800	0.3%	60.2%
CALL_BUILTIN_CLASS STORE_FAST	800	0.3%	60.5%
LOAD_ATTR_INSTANCE_VALUE CALL_BUILTIN_FAST	800	0.3%	60.7%
LOAD_ATTR_METHOD_WITH_VALUES LOAD_FAST	800	0.3%	61.0%
TO_BOOL_INT POP_JUMP_IF_FALSE	800	0.3%	61.2%
LOAD_CONST CALL_BUILTIN_FAST	760	0.2%	61.5%
LOAD_GLOBAL_BUILTIN LOAD_GLOBAL_BUILTIN	760	0.2%	61.7%
LOAD_GLOBAL_MODULE LOAD_ATTR	760	0.2%	62.0%
LOAD_FAST CALL_PY_GENERAL	720	0.2%	62.2%
LOAD_FAST TO_BOOL_BOOL	720	0.2%	62.4%
STORE_FAST LOAD_GLOBAL_BUILTIN	720	0.2%	62.6%
LOAD_ATTR_MODULE LOAD_ATTR_MODULE	720	0.2%	62.9%
LOAD_ATTR LOAD_ATTR_INSTANCE_VALUE	700	0.2%	63.1%
LOAD_FAST_LOAD_FAST STORE_ATTR	700	0.2%	63.3%

Predecessor/Successor Pairs

Top 5 predecessors and successors of each Tier 1 opcode.

This does not include the unspecialized instructions that occur after a specialized instruction deoptimizes.

BINARY_SLICE

Successors and predecessors for BINARY_SLICE

Predecessors	Count	Percentage
LOAD_FAST	660	60.0%
LOAD_CONST	440	40.0%

Successors	Count	Percentage
STORE_FAST	660	60.0%
GET_ITER	220	20.0%
LOAD_FAST	220	20.0%

CACHE

Successors and predecessors for CACHE

Successors	Count	Percentage
RESUME_CHECK	3,320	78.7%
POP_TOP	440	10.4%
RESUME	240	5.7%
MAKE_CELL	220	5.2%

BEFORE_WITH

Successors and predecessors for BEFORE_WITH

Predecessors	Count	Percentage
RETURN_VALUE	440	50.0%
CALL_NON_PY_GENERAL	200	22.7%
LOAD_ATTR_INSTANCE_VALUE	200	22.7%
CALL	20	2.3%
LOAD_ATTR	20	2.3%

Successors	Count	Percentage
POP_TOP	440	50.0%
STORE_FAST	440	50.0%

BINARY_OP_INPLACE_ADD_UNICODE

Successors and predecessors for BINARY_OP_INPLACE_ADD_UNICODE

Predecessors	Count	Percentage
BINARY_OP_ADD_UNICODE	220	100.0%

Successors	Count	Percentage
JUMP_BACKWARD	220	100.0%

BINARY_SUBSCR

Successors and predecessors for BINARY_SUBSCR

Predecessors	Count	Percentage
LOAD_CONST	200	100.0%

Successors	Count	Percentage
BINARY_SUBSCR_LIST_INT	60	30.0%
CALL	40	20.0%
STORE_FAST	40	20.0%
BINARY_SUBSCR_TUPLE_INT	40	20.0%
STORE_DEREF	20	10.0%

CHECK_EXC_MATCH

Successors and predecessors for CHECK_EXC_MATCH

Predecessors	Count	Percentage
LOAD_GLOBAL_BUILTIN	420	95.5%
LOAD_GLOBAL	20	4.5%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	440	100.0%

GET_ITER

Successors and predecessors for GET_ITER

Predecessors	Count	Percentage
LOAD_FAST	480	68.6%
BINARY_SLICE	220	31.4%

Successors	Count	Percentage
FOR_ITER_LIST	360	51.4%
FOR_ITER_TUPLE	260	37.1%
FOR_ITER	80	11.4%

INTERPRETER_EXIT

Successors and predecessors for INTERPRETER_EXIT

Predecessors	Count	Percentage
RETURN_CONST	2,200	52.1%
RETURN_VALUE	1,580	37.4%
YIELD_VALUE	440	10.4%

MAKE_FUNCTION

Successors and predecessors for MAKE_FUNCTION

Predecessors	Count	Percentage
LOAD_CONST	440	100.0%

Successors	Count	Percentage
SET_FUNCTION_ATTRIBUTE	440	100.0%

NOP

Successors and predecessors for NOP

Predecessors	Count	Percentage
STORE_FAST	880	25.0%
DELETE_ATTR	440	12.5%
POP_JUMP_IF_NOT_NONE	440	12.5%
RESUME_CHECK	400	11.4%
NOP	220	6.2%

Successors	Count	Percentage
LOAD_FAST	1,540	43.8%
LOAD_GLOBAL_BUILTIN	800	22.7%
LOAD_GLOBAL_MODULE	360	10.2%
NOP	220	6.2%
LOAD_CONST	220	6.2%

POP_EXCEPT

Successors and predecessors for POP_EXCEPT

Predecessors	Count	Percentage
POP_TOP	440	100.0%

Successors	Count	Percentage
RETURN_CONST	440	100.0%

POP_TOP

Successors and predecessors for POP_TOP

Predecessors	Count	Percentage
RETURN_CONST	1,320	18.1%
RETURN_VALUE	660	9.1%
POP_JUMP_IF_TRUE	660	9.1%
CALL_METHOD_DESCRIPTOR_O	600	8.2%
CACHE	440	6.0%

Successors	Count	Percentage
LOAD_FAST	2,640	36.3%
RETURN_CONST	1,100	15.1%
LOAD_CONST	660	9.1%
LOAD_GLOBAL_MODULE	540	7.4%
POP_EXCEPT	440	6.0%

PUSH_EXC_INFO

Successors and predecessors for PUSH_EXC_INFO

Predecessors	Count	Percentage
CALL_BUILTIN_FAST	420	95.5%
CALL	20	4.5%

Successors	Count	Percentage
LOAD_GLOBAL_BUILTIN	400	90.9%
LOAD_GLOBAL	40	9.1%

PUSH_NULL

Successors and predecessors for PUSH_NULL

Predecessors	Count	Percentage
LOAD_ATTR_MODULE	4,300	72.4%
LOAD_FAST	660	11.1%
LOAD_ATTR	540	9.1%
LOAD_DEREF	440	7.4%

Successors	Count	Percentage
LOAD_FAST	3,740	63.0%
CALL_NON_PY_GENERAL	1,080	18.2%
CALL	460	7.7%
LOAD_DEREF	440	7.4%
LOAD_CONST	220	3.7%

RETURN_GENERATOR

Successors and predecessors for RETURN_GENERATOR

Predecessors	Count	Percentage
CALL_FUNCTION_EX	440	100.0%

Successors	Count	Percentage
LOAD_FAST	440	100.0%

RETURN_VALUE

Successors and predecessors for RETURN_VALUE

Predecessors	Count	Percentage
LOAD_FAST	1,980	37.1%
BUILD_TUPLE	660	12.4%
CALL_BUILTIN_FAST	640	12.0%
CALL_NON_PY_GENERAL	620	11.6%
LOAD_ATTR_INSTANCE_VALUE	400	7.5%

Successors	Count	Percentage
INTERPRETER_EXIT	1,580	29.6%
POP_TOP	660	12.4%
STORE_FAST	660	12.4%
BEFORE_WITH	440	8.2%
TO_BOOL	260	4.9%

STORE_SUBSCR

Successors and predecessors for STORE_SUBSCR

Predecessors	Count	Percentage
LOAD_CONST	40	100.0%

Successors	Count	Percentage
LOAD_FAST	20	50.0%
STORE_SUBSCR_DICT	20	50.0%

TO_BOOL

Successors and predecessors for TO_BOOL

Predecessors	Count	Percentage
LOAD_FAST	860	29.5%
LOAD_ATTR_INSTANCE_VALUE	560	19.2%
LOAD_ATTR	280	9.6%
RETURN_VALUE	260	8.9%
TO_BOOL	240	8.2%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	1,600	54.8%
TO_BOOL_BOOL	460	15.8%
TO_BOOL	240	8.2%
EXTENDED_ARG	220	7.5%
POP_JUMP_IF_TRUE	180	6.2%

BINARY_OP

Successors and predecessors for BINARY_OP

Predecessors	Count	Percentage
LOAD_FAST	660	37.9%
CALL_LEN	660	37.9%
BUILD_LIST	220	12.6%
BINARY_OP	200	11.5%

Successors	Count	Percentage
STORE_FAST	660	37.9%
COMPARE_OP_STR	660	37.9%
LOAD_FAST	220	12.6%
BINARY_OP	200	11.5%

BUILD_LIST

Successors and predecessors for BUILD_LIST

Predecessors	Count	Percentage
LOAD_FAST	440	33.3%
STORE_FAST	220	16.7%
CALL_STR_1	200	15.2%
LOAD_ATTR_INSTANCE_VALUE	200	15.2%
RESUME_CHECK	200	15.2%

Successors	Count	Percentage
STORE_FAST	660	50.0%
BINARY_OP	220	16.7%
LOAD_FAST	220	16.7%
LOAD_ATTR_METHOD_NO_DICT	180	13.6%
LOAD_ATTR	40	3.0%

BUILD_MAP

Successors and predecessors for BUILD_MAP

Predecessors	Count	Percentage
LOAD_FAST	440	50.0%
CALL_INTRINSIC_1	220	25.0%
LOAD_DEREF	220	25.0%

Successors	Count	Percentage
LOAD_FAST	660	75.0%
LOAD_DEREF	220	25.0%

BUILD_TUPLE

Successors and predecessors for BUILD_TUPLE

Predecessors	Count	Percentage
LOAD_FAST_LOAD_FAST	1,100	55.6%
LOAD_FAST	440	22.2%
LOAD_DEREF	220	11.1%
LOAD_GLOBAL_BUILTIN	200	10.1%
LOAD_GLOBAL	20	1.0%

Successors	Count	Percentage
RETURN_VALUE	660	33.3%
LOAD_CONST	440	22.2%
CALL_METHOD_DESCRIPTOR_O	360	18.2%
STORE_FAST	220	11.1%
CALL_ISINSTANCE	180	9.1%

CALL

Successors and predecessors for CALL

Predecessors	Count	Percentage
LOAD_FAST	920	25.3%
PUSH_NULL	460	12.6%
LOAD_CONST	460	12.6%
LOAD_GLOBAL_MODULE	280	7.7%
LOAD_GLOBAL_BUILTIN	260	7.1%

Successors	Count	Percentage
LOAD_FAST	540	14.8%
STORE_FAST	440	12.1%
POP_TOP	240	6.6%
RESUME	220	6.0%
CALL_PY_EXACT_ARGS	220	6.0%

CALL_FUNCTION_EX

Successors and predecessors for CALL_FUNCTION_EX

Predecessors	Count	Percentage
DICT_MERGE	880	66.7%
LOAD_FAST	440	33.3%

Successors	Count	Percentage
RETURN_GENERATOR	440	33.3%
POP_TOP	220	16.7%
COPY_FREE_VARS	220	16.7%
MAKE_CELL	220	16.7%
LOAD_GLOBAL_MODULE	180	13.6%

CALL_INTRINSIC_1

Successors and predecessors for CALL_INTRINSIC_1

Predecessors	Count	Percentage
LIST_EXTEND	220	100.0%

Successors	Count	Percentage
BUILD_MAP	220	100.0%

CALL_KW

Successors and predecessors for CALL_KW

Predecessors	Count	Percentage
LOAD_CONST	880	100.0%

Successors	Count	Percentage
RESUME_CHECK	400	45.5%
LOAD_FAST	220	25.0%
STORE_FAST	220	25.0%
RESUME	40	4.5%

COMPARE_OP

Successors and predecessors for COMPARE_OP

Predecessors	Count	Percentage
LOAD_CONST	600	58.8%
LOAD_FAST_LOAD_FAST	220	21.6%
LOAD_GLOBAL	60	5.9%
LOAD_GLOBAL_MODULE	60	5.9%
COMPARE_OP	40	3.9%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	600	58.8%
COMPARE_OP_INT	380	37.3%
COMPARE_OP	40	3.9%

CONTAINS_OP

Successors and predecessors for CONTAINS_OP

Predecessors	Count	Percentage
LOAD_ATTR	40	100.0%

Successors	Count	Percentage
POP_JUMP_IF_TRUE	40	100.0%

COPY

Successors and predecessors for COPY

Predecessors	Count	Percentage
LOAD_FAST	880	80.0%
RETURN_VALUE	220	20.0%

Successors	Count	Percentage
TO_BOOL_NONE	540	49.1%
LOAD_FAST	220	20.0%
TO_BOOL_BOOL	180	16.4%
TO_BOOL	160	14.5%

COPY_FREE_VARS

Successors and predecessors for COPY_FREE_VARS

Predecessors	Count	Percentage
CALL_PY_GENERAL	400	45.5%
CALL_FUNCTION_EX	220	25.0%
CALL_PY_EXACT_ARGS	200	22.7%
CALL	60	6.8%

Successors	Count	Percentage
RESUME_CHECK	820	93.2%
RESUME	60	6.8%

DELETE_ATTR

Successors and predecessors for DELETE_ATTR

Predecessors	Count	Percentage
LOAD_FAST	1,320	100.0%

Successors	Count	Percentage
LOAD_FAST	880	66.7%
NOP	440	33.3%

DICT_MERGE

Successors and predecessors for DICT_MERGE

Predecessors	Count	Percentage
LOAD_FAST	660	75.0%
LOAD_DEREF	220	25.0%

Successors	Count	Percentage
CALL_FUNCTION_EX	880	100.0%

EXTENDED_ARG

Successors and predecessors for EXTENDED_ARG

Predecessors	Count	Percentage
LOAD_FAST	440	66.7%
TO_BOOL	220	33.3%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	220	33.3%
POP_JUMP_IF_NONE	220	33.3%
POP_JUMP_IF_NOT_NONE	220	33.3%

FOR_ITER

Successors and predecessors for FOR_ITER

Predecessors	Count	Percentage
GET_ITER	80	100.0%

Successors	Count	Percentage
FOR_ITER_LIST	40	50.0%
NOP	20	25.0%
RETURN_CONST	20	25.0%

IS_OP

Successors and predecessors for IS_OP

Predecessors	Count	Percentage
LOAD_CONST	220	47.8%
LOAD_GLOBAL_MODULE	200	43.5%
LOAD_GLOBAL	40	8.7%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	240	52.2%
STORE_FAST	220	47.8%

JUMP_BACKWARD

Successors and predecessors for JUMP_BACKWARD

Predecessors	Count	Percentage
BINARY_OP_INPLACE_ADD_UNICODE	220	84.6%
POP_JUMP_IF_TRUE	40	15.4%

Successors	Count	Percentage
FOR_ITER_TUPLE	260	100.0%

JUMP_FORWARD

Successors and predecessors for JUMP_FORWARD

Predecessors	Count	Percentage
STORE_FAST	660	42.9%
POP_JUMP_IF_FALSE	440	28.6%
POP_TOP	220	14.3%
POP_JUMP_IF_NOT_NONE	220	14.3%

Successors	Count	Percentage
LOAD_FAST	880	57.1%
LOAD_CONST	220	14.3%
LOAD_GLOBAL_BUILTIN	180	11.7%
LOAD_GLOBAL_MODULE	180	11.7%
LOAD_GLOBAL	80	5.2%

LIST_EXTEND

Successors and predecessors for LIST_EXTEND

Predecessors	Count	Percentage
LOAD_FAST	220	100.0%

Successors	Count	Percentage
CALL_INTRINSIC_1	220	100.0%

LOAD_ATTR

Successors and predecessors for LOAD_ATTR

Predecessors	Count	Percentage
LOAD_FAST	2,760	54.8%
LOAD_GLOBAL_MODULE	760	15.1%
LOAD_GLOBAL	540	10.7%
LOAD_ATTR	420	8.3%
CALL_TYPE_1	200	4.0%

Successors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	700	13.9%
LOAD_ATTR_MODULE	620	12.3%
PUSH_NULL	540	10.7%
LOAD_FAST_LOAD_FAST	540	10.7%
LOAD_ATTR	420	8.3%

LOAD_CONST

Successors and predecessors for LOAD_CONST

Predecessors	Count	Percentage
LOAD_FAST	6,400	31.6%
LOAD_CONST	3,080	15.2%
STORE_ATTR_INSTANCE_VALUE	1,800	8.9%
STORE_FAST	1,100	5.4%
POP_JUMP_IF_NONE	880	4.3%

Successors	Count	Percentage
LOAD_FAST	3,520	17.4%
LOAD_CONST	3,080	15.2%
COMPARE_OP_INT	2,700	13.3%
STORE_FAST	2,640	13.0%
CALL_KW	880	4.3%

LOAD_DEREF

Successors and predecessors for LOAD_DEREF

Predecessors	Count	Percentage
POP_JUMP_IF_FALSE	660	20.0%
PUSH_NULL	440	13.3%
LOAD_GLOBAL_MODULE	420	12.7%
LOAD_ATTR_MODULE	400	12.1%
NOP	220	6.7%

Successors	Count	Percentage
LOAD_FAST_LOAD_FAST	660	20.0%
CALL_PY_EXACT_ARGS	540	16.4%
PUSH_NULL	440	13.3%
BUILD_MAP	220	6.7%
BUILD_TUPLE	220	6.7%

LOAD_FAST

Successors and predecessors for LOAD_FAST

Predecessors	Count	Percentage
LOAD_FAST	7,920	11.6%
STORE_FAST	7,740	11.4%
POP_JUMP_IF_FALSE	7,040	10.3%
LOAD_GLOBAL_BUILTIN	5,600	8.2%
PUSH_NULL	3,740	5.5%

Successors	Count	Percentage
LOAD_FAST	7,920	11.6%
LOAD_ATTR_INSTANCE_VALUE	6,780	10.0%
LOAD_CONST	6,400	9.4%
STORE_ATTR_INSTANCE_VALUE	5,820	8.5%
POP_JUMP_IF_NOT_NONE	2,860	4.2%

LOAD_FAST_LOAD_FAST

Successors and predecessors for LOAD_FAST_LOAD_FAST

Predecessors	Count	Percentage
LOAD_FAST_LOAD_FAST	1,320	16.1%
POP_JUMP_IF_FALSE	1,320	16.1%
LOAD_DEREF	660	8.0%
STORE_FAST_STORE_FAST	660	8.0%
LOAD_ATTR_METHOD_WITH_VALUES	600	7.3%

Successors	Count	Percentage
LOAD_FAST	1,980	24.1%
LOAD_FAST_LOAD_FAST	1,320	16.1%
BUILD_TUPLE	1,100	13.4%
STORE_ATTR	700	8.5%
LOAD_GLOBAL_BUILTIN	660	8.0%

LOAD_GLOBAL

Successors and predecessors for LOAD_GLOBAL

Predecessors	Count	Percentage
STORE_FAST	560	17.6%
LOAD_FAST	540	17.0%
POP_JUMP_IF_FALSE	420	13.2%
RESUME	220	6.9%
RESUME_CHECK	220	6.9%

Successors	Count	Percentage
LOAD_GLOBAL_MODULE	1,000	31.4%
LOAD_GLOBAL_BUILTIN	560	17.6%
LOAD_ATTR	540	17.0%
LOAD_FAST	440	13.8%
CALL	180	5.7%

MAKE_CELL

Successors and predecessors for MAKE_CELL

Predecessors	Count	Percentage
MAKE_CELL	440	40.0%
CACHE	220	20.0%
CALL_FUNCTION_EX	220	20.0%
CALL_PY_EXACT_ARGS	200	18.2%
CALL	20	1.8%

Successors	Count	Percentage
RESUME_CHECK	600	54.5%
MAKE_CELL	440	40.0%
RESUME	60	5.5%

POP_JUMP_IF_FALSE

Successors and predecessors for POP_JUMP_IF_FALSE

Predecessors	Count	Percentage
TO_BOOL_BOOL	4,500	31.4%
COMPARE_OP_INT	3,800	26.5%
TO_BOOL	1,600	11.2%
TO_BOOL_STR	860	6.0%
TO_BOOL_INT	800	5.6%

Successors	Count	Percentage
LOAD_FAST	7,040	49.2%
LOAD_FAST_LOAD_FAST	1,320	9.2%
LOAD_GLOBAL_MODULE	1,260	8.8%
RETURN_CONST	1,100	7.7%
LOAD_CONST	660	4.6%

POP_JUMP_IF_NONE

Successors and predecessors for POP_JUMP_IF_NONE

Predecessors	Count	Percentage
LOAD_FAST	1,760	72.7%
LOAD_ATTR_INSTANCE_VALUE	400	16.5%
EXTENDED_ARG	220	9.1%
LOAD_ATTR	40	1.7%

Successors	Count	Percentage
LOAD_FAST	1,320	54.5%
LOAD_CONST	880	36.4%
NOP	220	9.1%

POP_JUMP_IF_NOT_NONE

Successors and predecessors for POP_JUMP_IF_NOT_NONE

Predecessors	Count	Percentage
LOAD_FAST	2,860	61.9%
LOAD_ATTR_INSTANCE_VALUE	1,000	21.6%
EXTENDED_ARG	220	4.8%
LOAD_DEREF	220	4.8%
LOAD_GLOBAL_MODULE	200	4.3%

Successors	Count	Percentage
LOAD_FAST	1,980	42.9%
LOAD_GLOBAL_BUILTIN	540	11.7%
NOP	440	9.5%
LOAD_CONST	440	9.5%
LOAD_GLOBAL_MODULE	360	7.8%

POP_JUMP_IF_TRUE

Successors and predecessors for POP_JUMP_IF_TRUE

Predecessors	Count	Percentage
TO_BOOL_BOOL	1,420	57.7%
TO_BOOL_NONE	600	24.4%
TO_BOOL_STR	220	8.9%
TO_BOOL	180	7.3%
CONTAINS_OP	40	1.6%

Successors	Count	Percentage
LOAD_FAST	1,100	44.7%
POP_TOP	660	26.8%
LOAD_GLOBAL_MODULE	360	14.6%
NOP	220	8.9%
LOAD_GLOBAL	80	3.3%

RETURN_CONST

Successors and predecessors for RETURN_CONST

Predecessors	Count	Percentage
POP_TOP	1,100	23.8%
POP_JUMP_IF_FALSE	1,100	23.8%
STORE_ATTR_INSTANCE_VALUE	1,040	22.5%
STORE_ATTR	500	10.8%
POP_EXCEPT	440	9.5%

Successors	Count	Percentage
INTERPRETER_EXIT	2,200	47.6%
POP_TOP	1,320	28.6%
STORE_FAST	880	19.0%
TO_BOOL_NONE	180	3.9%
TO_BOOL	40	0.9%

SET_FUNCTION_ATTRIBUTE

Successors and predecessors for SET_FUNCTION_ATTRIBUTE

Predecessors	Count	Percentage
MAKE_FUNCTION	440	100.0%

Successors	Count	Percentage
STORE_FAST	440	100.0%

STORE_ATTR

Successors and predecessors for STORE_ATTR

Predecessors	Count	Percentage
LOAD_FAST	1,220	59.2%
LOAD_FAST_LOAD_FAST	700	34.0%
STORE_ATTR	140	6.8%

Successors	Count	Percentage
STORE_ATTR_INSTANCE_VALUE	520	25.2%
RETURN_CONST	500	24.3%
LOAD_FAST	440	21.4%
LOAD_CONST	180	8.7%
LOAD_GLOBAL_MODULE	180	8.7%

STORE_DEREF

Successors and predecessors for STORE_DEREF

Predecessors	Count	Percentage
RETURN_VALUE	220	33.3%
BINARY_SUBSCR_LIST_INT	200	30.3%
CALL_NON_PY_GENERAL	200	30.3%
BINARY_SUBSCR	20	3.0%
CALL	20	3.0%

Successors	Count	Percentage
LOAD_GLOBAL_MODULE	360	54.5%
LOAD_FAST	220	33.3%
LOAD_GLOBAL	80	12.1%

STORE_FAST

Successors and predecessors for STORE_FAST

Predecessors	Count	Percentage
LOAD_CONST	2,640	15.9%
STORE_FAST	1,320	8.0%
CALL_BUILTIN_FAST_WITH_KEYWORDS	1,300	7.8%
CALL_METHOD_DESCRIPTOR_FAST	1,060	6.4%
RETURN_CONST	880	5.3%

Successors	Count	Percentage
LOAD_FAST	7,740	46.7%
LOAD_GLOBAL_MODULE	2,900	17.5%
STORE_FAST	1,320	8.0%
LOAD_CONST	1,100	6.6%
NOP	880	5.3%

STORE_FAST_STORE_FAST

Successors and predecessors for STORE_FAST_STORE_FAST

Predecessors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	1,620	92.0%
UNPACK_SEQUENCE	140	8.0%

Successors	Count	Percentage
LOAD_FAST	660	37.5%
LOAD_FAST_LOAD_FAST	660	37.5%
LOAD_CONST	440	25.0%

SWAP

Successors and predecessors for SWAP

Predecessors	Count	Percentage
LOAD_FAST	440	64.7%
RETURN_VALUE	220	32.4%
LOAD_GLOBAL	20	2.9%

Successors	Count	Percentage
LOAD_FAST	440	64.7%
LOAD_CONST	220	32.4%
POP_TOP	20	2.9%

UNPACK_SEQUENCE

Successors and predecessors for UNPACK_SEQUENCE

Predecessors	Count	Percentage
LOAD_CONST	120	33.3%
RETURN_VALUE	80	22.2%
CALL	80	22.2%
CALL_NON_PY_GENERAL	40	11.1%
CALL_BUILTIN_FAST	20	5.6%

Successors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	160	44.4%
STORE_FAST_STORE_FAST	140	38.9%
STORE_FAST	40	11.1%
UNPACK_SEQUENCE_TUPLE	20	5.6%

YIELD_VALUE

Successors and predecessors for YIELD_VALUE

Predecessors	Count	Percentage
LOAD_CONST	220	50.0%
LOAD_FAST	220	50.0%

Successors	Count	Percentage
INTERPRETER_EXIT	440	100.0%

RESUME

Successors and predecessors for RESUME

Predecessors	Count	Percentage
CACHE	240	36.4%
CALL	220	33.3%
COPY_FREE_VARS	60	9.1%
MAKE_CELL	60	9.1%
POP_TOP	40	6.1%

Successors	Count	Percentage
LOAD_FAST	300	45.5%
LOAD_GLOBAL	220	33.3%
NOP	40	6.1%
POP_TOP	40	6.1%
BUILD_LIST	20	3.0%

BINARY_OP_ADD_INT

Successors and predecessors for BINARY_OP_ADD_INT

Predecessors	Count	Percentage
LOAD_CONST	660	100.0%

Successors	Count	Percentage
STORE_FAST	660	100.0%

BINARY_OP_ADD_UNICODE

Successors and predecessors for BINARY_OP_ADD_UNICODE

Predecessors	Count	Percentage
LOAD_FAST	220	100.0%

Successors	Count	Percentage
BINARY_OP_INPLACE_ADD_UNICODE	220	100.0%

BINARY_SUBSCR_LIST_INT

Successors and predecessors for BINARY_SUBSCR_LIST_INT

Predecessors	Count	Percentage
LOAD_CONST	540	90.0%
BINARY_SUBSCR	60	10.0%

Successors	Count	Percentage
CALL_BUILTIN_CLASS	360	60.0%
STORE_DEREF	200	33.3%
CALL	40	6.7%

BINARY_SUBSCR_TUPLE_INT

Successors and predecessors for BINARY_SUBSCR_TUPLE_INT

Predecessors	Count	Percentage
LOAD_CONST	360	90.0%
BINARY_SUBSCR	40	10.0%

Successors	Count	Percentage
STORE_FAST	400	100.0%

CALL_BOUND_METHOD_EXACT_ARGS

Successors and predecessors for CALL_BOUND_METHOD_EXACT_ARGS

Predecessors	Count	Percentage
LOAD_CONST	360	90.0%
CALL	40	10.0%

Successors	Count	Percentage
POP_TOP	400	100.0%

CALL_BOUND_METHOD_GENERAL

Successors and predecessors for CALL_BOUND_METHOD_GENERAL

Predecessors	Count	Percentage
LOAD_CONST	180	90.0%
CALL	20	10.0%

Successors	Count	Percentage
POP_TOP	200	100.0%

CALL_BUILTIN_CLASS

Successors and predecessors for CALL_BUILTIN_CLASS

Predecessors	Count	Percentage
LOAD_FAST	540	54.0%
BINARY_SUBSCR_LIST_INT	360	36.0%
CALL	100	10.0%

Successors	Count	Percentage
STORE_FAST	800	80.0%
CALL_BUILTIN_FAST_WITH_KEYWORDS	180	18.0%
CALL	20	2.0%

CALL_BUILTIN_FAST

Successors and predecessors for CALL_BUILTIN_FAST

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	800	29.6%
LOAD_CONST	760	28.1%
LOAD_FAST	580	21.5%
LOAD_FAST_LOAD_FAST	200	7.4%
CALL	180	6.7%

Successors	Count	Percentage
STORE_FAST	820	30.4%
RETURN_VALUE	640	23.7%
PUSH_EXC_INFO	420	15.6%
UNPACK_SEQUENCE_TWO_TUPLE	400	14.8%
POP_TOP	200	7.4%

CALL_BUILTIN_FAST_WITH_KEYWORDS

Successors and predecessors for CALL_BUILTIN_FAST_WITH_KEYWORDS

Predecessors	Count	Percentage
LOAD_FAST	2,180	80.7%
LOAD_FAST_LOAD_FAST	180	6.7%
CALL_BUILTIN_CLASS	180	6.7%
CALL	160	5.9%

Successors	Count	Percentage
STORE_FAST	1,300	48.1%
LOAD_FAST	600	22.2%
POP_TOP	400	14.8%
CALL_TUPLE_1	180	6.7%
TO_BOOL_BOOL	180	6.7%

CALL_ISINSTANCE

Successors and predecessors for CALL_ISINSTANCE

Predecessors	Count	Percentage
LOAD_GLOBAL_BUILTIN	1,420	75.5%
BUILD_TUPLE	180	9.6%
LOAD_ATTR_MODULE	180	9.6%
CALL	100	5.3%

Successors	Count	Percentage
TO_BOOL_BOOL	1,780	94.7%
TO_BOOL	100	5.3%

CALL_LEN

Successors and predecessors for CALL_LEN

Predecessors	Count	Percentage
LOAD_FAST	840	97.7%
CALL	20	2.3%

Successors	Count	Percentage
BINARY_OP	660	76.7%
LOAD_CONST	200	23.3%

CALL_METHOD_DESCRIPTOR_FAST

Successors and predecessors for CALL_METHOD_DESCRIPTOR_FAST

Predecessors	Count	Percentage
LOAD_FAST	1,760	81.5%
LOAD_CONST	180	8.3%
LOAD_ATTR_METHOD_LAZY_DICT	180	8.3%
CALL	40	1.9%

Successors	Count	Percentage
STORE_FAST	1,060	49.1%
LOAD_CONST	660	30.6%
TO_BOOL_BOOL	440	20.4%

CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS

Successors and predecessors for CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS

Predecessors	Count	Percentage
LOAD_DEREF	180	45.0%
LOAD_ATTR_METHOD_NO_DICT	180	45.0%
CALL	40	10.0%

Successors	Count	Percentage
RETURN_VALUE	200	50.0%
STORE_FAST	200	50.0%

CALL_METHOD_DESCRIPTOR_NOARGS

Successors and predecessors for CALL_METHOD_DESCRIPTOR_NOARGS

Predecessors	Count	Percentage
LOAD_ATTR_METHOD_LAZY_DICT	180	45.0%
LOAD_ATTR_METHOD_NO_DICT	180	45.0%
CALL	40	10.0%

Successors	Count	Percentage
POP_TOP	200	50.0%
UNPACK_SEQUENCE_TWO_TUPLE	180	45.0%
UNPACK_SEQUENCE	20	5.0%

CALL_METHOD_DESCRIPTOR_O

Successors and predecessors for CALL_METHOD_DESCRIPTOR_O

Predecessors	Count	Percentage
BUILD_TUPLE	360	45.0%
LOAD_CONST	180	22.5%
LOAD_FAST	180	22.5%
CALL	80	10.0%

Successors	Count	Percentage
POP_TOP	600	75.0%
LOAD_CONST	200	25.0%

CALL_NON_PY_GENERAL

Successors and predecessors for CALL_NON_PY_GENERAL

Predecessors	Count	Percentage
PUSH_NULL	1,080	59.3%
LOAD_FAST_LOAD_FAST	400	22.0%
LOAD_CONST	180	9.9%
CALL	160	8.8%

Successors	Count	Percentage
RETURN_VALUE	620	34.1%
POP_TOP	400	22.0%
UNPACK_SEQUENCE_TWO_TUPLE	360	19.8%
BEFORE_WITH	200	11.0%
STORE_DEREF	200	11.0%

CALL_PY_EXACT_ARGS

Successors and predecessors for CALL_PY_EXACT_ARGS

Predecessors	Count	Percentage
LOAD_FAST	1,600	48.5%
LOAD_DEREF	540	16.4%
LOAD_GLOBAL_MODULE	540	16.4%
CALL	220	6.7%
LOAD_FAST_LOAD_FAST	220	6.7%

Successors	Count	Percentage
RESUME_CHECK	2,900	87.9%
COPY_FREE_VARS	200	6.1%
MAKE_CELL	200	6.1%

CALL_PY_GENERAL

Successors and predecessors for CALL_PY_GENERAL

Predecessors	Count	Percentage
LOAD_FAST	720	45.0%
LOAD_ATTR_METHOD_WITH_VALUES	540	33.8%
LOAD_CONST	180	11.2%
CALL	160	10.0%

Successors	Count	Percentage
RESUME_CHECK	1,200	75.0%
COPY_FREE_VARS	400	25.0%

CALL_STR_1

Successors and predecessors for CALL_STR_1

Predecessors	Count	Percentage
LOAD_FAST	180	90.0%
CALL	20	10.0%

Successors	Count	Percentage
BUILD_LIST	200	100.0%

CALL_TUPLE_1

Successors and predecessors for CALL_TUPLE_1

Predecessors	Count	Percentage
CALL_BUILTIN_FAST_WITH_KEYWORDS	180	90.0%
CALL	20	10.0%

Successors	Count	Percentage
LOAD_FAST	200	100.0%

CALL_TYPE_1

Successors and predecessors for CALL_TYPE_1

Predecessors	Count	Percentage
LOAD_FAST	180	90.0%
CALL	20	10.0%

Successors	Count	Percentage
LOAD_ATTR	200	100.0%

COMPARE_OP_INT

Successors and predecessors for COMPARE_OP_INT

Predecessors	Count	Percentage
LOAD_CONST	2,700	71.1%
LOAD_GLOBAL_MODULE	540	14.2%
COMPARE_OP	380	10.0%
LOAD_ATTR_INSTANCE_VALUE	180	4.7%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	3,800	100.0%

COMPARE_OP_STR

Successors and predecessors for COMPARE_OP_STR

Predecessors	Count	Percentage
BINARY_OP	660	100.0%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	660	100.0%

FOR_ITER_LIST

Successors and predecessors for FOR_ITER_LIST

Predecessors	Count	Percentage
GET_ITER	360	90.0%
FOR_ITER	40	10.0%

Successors	Count	Percentage
NOP	200	50.0%
RETURN_CONST	200	50.0%

FOR_ITER_TUPLE

Successors and predecessors for FOR_ITER_TUPLE

Predecessors	Count	Percentage
GET_ITER	260	50.0%
JUMP_BACKWARD	260	50.0%

Successors	Count	Percentage
STORE_FAST	280	53.8%
LOAD_FAST	220	42.3%
LOAD_GLOBAL	20	3.8%

LOAD_ATTR_CLASS

Successors and predecessors for LOAD_ATTR_CLASS

Predecessors	Count	Percentage
LOAD_FAST	360	90.0%
LOAD_ATTR	40	10.0%

Successors	Count	Percentage
LOAD_FAST	400	100.0%

LOAD_ATTR_INSTANCE_VALUE

Successors and predecessors for LOAD_ATTR_INSTANCE_VALUE

Predecessors	Count	Percentage
LOAD_FAST	6,780	86.0%
LOAD_ATTR	700	8.9%
LOAD_FAST_LOAD_FAST	400	5.1%

Successors	Count	Percentage
LOAD_FAST	1,240	15.7%
POP_JUMP_IF_NOT_NONE	1,000	12.7%
TO_BOOL_BOOL	900	11.4%
CALL_BUILTIN_FAST	800	10.2%
TO_BOOL	560	7.1%

LOAD_ATTR_METHOD_LAZY_DICT

Successors and predecessors for LOAD_ATTR_METHOD_LAZY_DICT

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	360	90.0%
LOAD_ATTR	40	10.0%

Successors	Count	Percentage
CALL_METHOD_DESCRIPTOR_FAST	180	45.0%
CALL_METHOD_DESCRIPTOR_NOARGS	180	45.0%
CALL	40	10.0%

LOAD_ATTR_METHOD_NO_DICT

Successors and predecessors for LOAD_ATTR_METHOD_NO_DICT

Predecessors	Count	Percentage
LOAD_FAST	2,480	73.8%
LOAD_ATTR_INSTANCE_VALUE	540	16.1%
BUILD_LIST	180	5.4%
LOAD_ATTR	160	4.8%

Successors	Count	Percentage
LOAD_FAST	1,960	58.3%
LOAD_CONST	400	11.9%
LOAD_FAST_LOAD_FAST	400	11.9%
LOAD_DEREF	200	6.0%
CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS	180	5.4%

LOAD_ATTR_METHOD_WITH_VALUES

Successors and predecessors for LOAD_ATTR_METHOD_WITH_VALUES

Predecessors	Count	Percentage
LOAD_FAST	2,160	90.0%
LOAD_ATTR	240	10.0%

Successors	Count	Percentage
LOAD_FAST	800	33.3%
LOAD_FAST_LOAD_FAST	600	25.0%
CALL_PY_GENERAL	540	22.5%
LOAD_CONST	200	8.3%
LOAD_GLOBAL_MODULE	180	7.5%

LOAD_ATTR_MODULE

Successors and predecessors for LOAD_ATTR_MODULE

Predecessors	Count	Percentage
LOAD_GLOBAL_MODULE	5,960	81.6%
LOAD_ATTR_MODULE	720	9.9%
LOAD_ATTR	620	8.5%

Successors	Count	Percentage
PUSH_NULL	4,300	58.9%
LOAD_ATTR_MODULE	720	9.9%
LOAD_FAST	600	8.2%
LOAD_DEREF	400	5.5%
LOAD_ATTR_SLOT	360	4.9%

LOAD_ATTR_SLOT

Successors and predecessors for LOAD_ATTR_SLOT

Predecessors	Count	Percentage
LOAD_ATTR_MODULE	360	90.0%
LOAD_ATTR	40	10.0%

Successors	Count	Percentage
TO_BOOL_INT	360	90.0%
TO_BOOL	40	10.0%

LOAD_GLOBAL_BUILTIN

Successors and predecessors for LOAD_GLOBAL_BUILTIN

Predecessors	Count	Percentage
LOAD_FAST	1,960	21.9%
RESUME_CHECK	1,240	13.9%
NOP	800	8.9%
LOAD_GLOBAL_BUILTIN	760	8.5%
STORE_FAST	720	8.1%

Successors	Count	Percentage
LOAD_FAST	5,600	62.6%
CALL_ISINSTANCE	1,420	15.9%
LOAD_GLOBAL_BUILTIN	760	8.5%
CHECK_EXC_MATCH	420	4.7%
CALL	260	2.9%

LOAD_GLOBAL_MODULE

Successors and predecessors for LOAD_GLOBAL_MODULE

Predecessors	Count	Percentage
RESUME_CHECK	2,960	23.8%
STORE_FAST	2,900	23.3%
LOAD_FAST	1,260	10.1%
POP_JUMP_IF_FALSE	1,260	10.1%
LOAD_GLOBAL	1,000	8.0%

Successors	Count	Percentage
LOAD_ATTR_MODULE	5,960	47.9%
LOAD_FAST	1,680	13.5%
TO_BOOL_BOOL	1,080	8.7%
LOAD_ATTR	760	6.1%
CALL_PY_EXACT_ARGS	540	4.3%

RESUME_CHECK

Successors and predecessors for RESUME_CHECK

Predecessors	Count	Percentage
CACHE	3,320	34.1%
CALL_PY_EXACT_ARGS	2,900	29.8%
CALL_PY_GENERAL	1,200	12.3%
COPY_FREE_VARS	820	8.4%
MAKE_CELL	600	6.2%

Successors	Count	Percentage
LOAD_FAST	3,700	38.0%
LOAD_GLOBAL_MODULE	2,960	30.4%
LOAD_GLOBAL_BUILTIN	1,240	12.7%
NOP	400	4.1%
POP_TOP	400	4.1%

STORE_ATTR_INSTANCE_VALUE

Successors and predecessors for STORE_ATTR_INSTANCE_VALUE

Predecessors	Count	Percentage
LOAD_FAST	5,820	86.4%
STORE_ATTR	520	7.7%
LOAD_FAST_LOAD_FAST	400	5.9%

Successors	Count	Percentage
LOAD_FAST	2,860	42.4%
LOAD_CONST	1,800	26.7%
RETURN_CONST	1,040	15.4%
LOAD_FAST_LOAD_FAST	420	6.2%
LOAD_GLOBAL_BUILTIN	400	5.9%

STORE_SUBSCR_DICT

Successors and predecessors for STORE_SUBSCR_DICT

Predecessors	Count	Percentage
LOAD_CONST	180	90.0%
STORE_SUBSCR	20	10.0%

Successors	Count	Percentage
LOAD_FAST	200	100.0%

TO_BOOL_ALWAYS_TRUE

Successors and predecessors for TO_BOOL_ALWAYS_TRUE

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	180	90.0%
TO_BOOL	20	10.0%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	200	100.0%

TO_BOOL_BOOL

Successors and predecessors for TO_BOOL_BOOL

Predecessors	Count	Percentage
CALL_ISINSTANCE	1,780	30.1%
LOAD_GLOBAL_MODULE	1,080	18.2%
LOAD_ATTR_INSTANCE_VALUE	900	15.2%
LOAD_FAST	720	12.2%
TO_BOOL	460	7.8%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	4,500	76.0%
POP_JUMP_IF_TRUE	1,420	24.0%

TO_BOOL_INT

Successors and predecessors for TO_BOOL_INT

Predecessors	Count	Percentage
LOAD_ATTR_SLOT	360	45.0%
LOAD_FAST	180	22.5%
LOAD_ATTR_INSTANCE_VALUE	180	22.5%
TO_BOOL	80	10.0%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	800	100.0%

TO_BOOL_NONE

Successors and predecessors for TO_BOOL_NONE

Predecessors	Count	Percentage
COPY	540	54.0%
RETURN_CONST	180	18.0%
LOAD_ATTR_INSTANCE_VALUE	180	18.0%
TO_BOOL	100	10.0%

Successors	Count	Percentage
POP_JUMP_IF_TRUE	600	60.0%
POP_JUMP_IF_FALSE	400	40.0%

TO_BOOL_STR

Successors and predecessors for TO_BOOL_STR

Predecessors	Count	Percentage
LOAD_FAST	880	81.5%
RETURN_VALUE	180	16.7%
TO_BOOL	20	1.9%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	860	79.6%
POP_JUMP_IF_TRUE	220	20.4%

UNPACK_SEQUENCE_TUPLE

Successors and predecessors for UNPACK_SEQUENCE_TUPLE

Predecessors	Count	Percentage
RETURN_VALUE	180	90.0%
UNPACK_SEQUENCE	20	10.0%

Successors	Count	Percentage
STORE_FAST	200	100.0%

UNPACK_SEQUENCE_TWO_TUPLE

Successors and predecessors for UNPACK_SEQUENCE_TWO_TUPLE

Predecessors	Count	Percentage
LOAD_CONST	540	29.7%
CALL_BUILTIN_FAST	400	22.0%
CALL_NON_PY_GENERAL	360	19.8%
RETURN_VALUE	180	9.9%
CALL_METHOD_DESCRIPTOR_NOARGS	180	9.9%

Successors	Count	Percentage
STORE_FAST_STORE_FAST	1,620	89.0%
STORE_FAST	200	11.0%

Specialization stats

Specialization stats by family

BINARY_OP

specialization stats for BINARY_OP family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	1,540	54.2%
hit ⓘ Specialized instructions that complete.	1,100	38.7%

Success	Count	Ratio
Success	0	0.0%
Failure	200	100.0%

Failure kind	Count	Ratio
add other	120	60.0%
add different types	40	20.0%
multiply different types	40	20.0%

BINARY_SLICE

specialization stats for BINARY_SLICE family

BINARY_SUBSCR

specialization stats for BINARY_SUBSCR family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	100	8.3%
hit ⓘ Specialized instructions that complete.	1,000	83.3%

Success	Count	Ratio
Success	100	100.0%
Failure	0	0.0%

CALL

specialization stats for CALL family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	2,700	12.8%
hit ⓘ Specialized instructions that complete.	16,800	79.8%
miss ⓘ Specialized instructions that deopt.	600	2.9%

Success	Count	Ratio
Success	1,420	92.2%
Failure	120	7.8%

Failure kind	Count	Ratio
class no vectorcall	120	100.0%

COMPARE_OP

specialization stats for COMPARE_OP family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	820	15.0%
hit ⓘ Specialized instructions that complete.	4,240	77.4%
miss ⓘ Specialized instructions that deopt.	220	4.0%

Success	Count	Ratio
Success	380	90.5%
Failure	40	9.5%

Failure kind	Count	Ratio
different types	40	100.0%

CONTAINS_OP

specialization stats for CONTAINS_OP family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	40	100.0%

FOR_ITER

specialization stats for FOR_ITER family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	40	4.0%
hit ⓘ Specialized instructions that complete.	920	92.0%

Success	Count	Ratio
Success	40	100.0%
Failure	0	0.0%

LOAD_ATTR

specialization stats for LOAD_ATTR family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	3,440	12.7%
hit ⓘ Specialized instructions that complete.	21,700	79.8%
miss ⓘ Specialized instructions that deopt.	440	1.6%

Success	Count	Ratio
Success	1,840	90.2%
Failure	200	9.8%

Failure kind	Count	Ratio
metaclass attribute	80	40.0%
shadowed	40	20.0%
class attr simple	40	20.0%
class attr descriptor	40	20.0%

LOAD_GLOBAL

specialization stats for LOAD_GLOBAL family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	3,320	13.5%
hit ⓘ Specialized instructions that complete.	19,640	80.0%
miss ⓘ Specialized instructions that deopt.	1,740	7.1%

Success	Count	Ratio
Success	1,600	100.0%
Failure	0	0.0%

POP_JUMP_IF_FALSE

specialization stats for POP_JUMP_IF_FALSE family

POP_JUMP_IF_NONE

specialization stats for POP_JUMP_IF_NONE family

POP_JUMP_IF_NOT_NONE

specialization stats for POP_JUMP_IF_NOT_NONE family

POP_JUMP_IF_TRUE

specialization stats for POP_JUMP_IF_TRUE family

STORE_ATTR

specialization stats for STORE_ATTR family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	1,400	15.9%
hit ⓘ Specialized instructions that complete.	6,740	76.6%

Success	Count	Ratio
Success	520	78.8%
Failure	140	21.2%

Failure kind	Count	Ratio
class attr simple	100	71.4%
not managed dict	40	28.6%

STORE_SUBSCR

specialization stats for STORE_SUBSCR family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	20	8.3%
hit ⓘ Specialized instructions that complete.	200	83.3%

Success	Count	Ratio
Success	20	100.0%
Failure	0	0.0%

TO_BOOL

specialization stats for TO_BOOL family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	2,220	18.9%
hit ⓘ Specialized instructions that complete.	8,580	73.2%
miss ⓘ Specialized instructions that deopt.	220	1.9%

Success	Count	Ratio
Success	680	73.9%
Failure	240	26.1%

Failure kind	Count	Ratio
bytes	80	33.3%
sequence	80	33.3%
bytearray	40	16.7%
tuple	40	16.7%

UNPACK_SEQUENCE

specialization stats for UNPACK_SEQUENCE family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	180	7.6%
hit ⓘ Specialized instructions that complete.	2,020	84.9%

Success	Count	Ratio
Success	180	100.0%
Failure	0	0.0%

Specialization effectiveness

specialization effectiveness

All entries are execution counts. Should add up to the total number of Tier 1 instructions executed.

Instructions	Count	Ratio
Basic ⓘ Instructions that are not and cannot be specialized, e.g. `LOAD_FAST`.	170,780	54.1%
Not specialized ⓘ Instructions that could be specialized but aren't, e.g. `LOAD_ATTR`, `BINARY_SLICE`.	45,240	14.3%
Specialized hits ⓘ Specialized instructions, e.g. `LOAD_ATTR_MODULE` that complete.	96,300	30.5%
Specialized misses ⓘ Specialized instructions, e.g. `LOAD_ATTR_MODULE` that deopt.	3,220	1.0%

Deferred by instruction

Breakdown of deferred (not specialized) instruction counts by family

Name	Count	Ratio
LOAD_ATTR	3,440	21.7%
LOAD_GLOBAL	3,320	21.0%
CALL	2,700	17.1%
TO_BOOL	2,220	14.0%
BINARY_OP	1,540	9.7%
STORE_ATTR	1,400	8.8%
COMPARE_OP	820	5.2%
UNPACK_SEQUENCE	180	1.1%
BINARY_SUBSCR	100	0.6%
CONTAINS_OP	40	0.3%

Misses by instruction

Breakdown of misses (specialized deopts) instruction counts by family

Name	Count	Ratio
LOAD_GLOBAL_BUILTIN	1,740	54.0%
LOAD_ATTR_METHOD_NO_DICT	440	13.7%
CALL_BOUND_METHOD_EXACT_ARGS	400	12.4%
COMPARE_OP_STR	220	6.8%
TO_BOOL_STR	220	6.8%
CALL_BOUND_METHOD_GENERAL	200	6.2%
CACHE	0	0.0%
BEFORE_WITH	0	0.0%
BINARY_OP_INPLACE_ADD_UNICODE	0	0.0%
CHECK_EXC_MATCH	0	0.0%

Call stats

Inlined calls and frame stats

This shows what fraction of calls to Python functions are inlined (i.e. not having a call at the C level) and for those that are not, where the call comes from. The various categories overlap.

Also includes the count of frame objects created.

	Count	Ratio
Calls to PyEval_EvalDefault	4,220	38.9%
Calls to Python functions inlined	6,620	61.1%
Calls via PyEval_EvalFrame (total)	4,220	38.9%
Calls via PyEval_EvalFrame (vector)	3,340	30.8%
Calls via PyEval_EvalFrame (generator)	880	8.1%
Calls via PyEval_EvalFrame (legacy)	0	0.0%
Calls via PyEval_EvalFrame (function vectorcall)	3,340	30.8%
Calls via PyEval_EvalFrame (build class)	0	0.0%
Calls via PyEval_EvalFrame (slot)	0	0.0%
Calls via PyEval_EvalFrame (function ex)	880	8.1%
Calls via PyEval_EvalFrame (api)	440	4.1%
Calls via PyEval_EvalFrame (method)	0	0.0%
Frame objects created	440	4.1%
Frames pushed	9,960	91.9%

Object stats

Allocations, frees and dict materializatons

Below, "allocations" means "allocations that are not from a freelist". Total allocations = "Allocations from freelist" + "Allocations".

"Inline values" is the number of values arrays inlined into objects.

The cache hit/miss numbers are for the MRO cache, split into dunder and other names.

	Count	Ratio
Allocations from freelist	13,520	35.7%
Frees to freelist	13,680
Allocations	24,340	64.3%
Allocations to 512 bytes	23,460	62.0%
Allocations to 4 kbytes	220	0.6%
Allocations over 4 kbytes	660	1.7%
Frees	23,917
Inline values	1,100
Interpreter increfs	112,400	65.1%
Interpreter decrefs	134,460	65.6%
Increfs	60,170	34.9%
Decrefs	70,644	34.4%
Materialize dict (on request)	0	0.0%
Materialize dict (new key)	0	0.0%
Materialize dict (too big)	0	0.0%
Materialize dict (str subclass)	0	0.0%
Method cache hits	15,319
Method cache misses	1,601
Method cache collisions	1,395
Method cache dunder hits	6,930
Method cache dunder misses	430

GC stats

GC collections and effectiveness

Collected/visits gives some measure of efficiency.

Generation	Collections	Objects collected	Object visits
0	0	0	0
1	0	0	0
2	0	0	0

Optimization (Tier 2) stats

statistics about the Tier 2 optimizer

Rare events

Counts of rare/unlikely events

Event	Count
set class ⓘ Setting an object's class, `obj.__class__ = ...`	0
set bases ⓘ Setting the bases of a class, `cls.__bases__ = ...`	0
set eval frame func ⓘ Setting the PEP 523 frame eval function `_PyInterpreterState_SetFrameEvalFunc()`	0
builtin dict ⓘ Modifying the builtins, `__builtins__.__dict__[var] = ...`	0
func modification ⓘ Modifying a function, e.g. `func.__defaults__ = ...`, etc.	0
watched dict modification ⓘ A watched dict has been modified	0
watched globals modification ⓘ A watched `globals()` dict has been modified	0

Meta stats

Meta statistics

	Count
Number of data files	20

Stats gathered on: 2024-05-26

Files

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Pystats results

Execution counts

Pair counts

Predecessor/Successor Pairs

BINARY_SLICE

CACHE

BEFORE_WITH

BINARY_OP_INPLACE_ADD_UNICODE

BINARY_SUBSCR

CHECK_EXC_MATCH

GET_ITER

INTERPRETER_EXIT

MAKE_FUNCTION

NOP

POP_EXCEPT

POP_TOP

PUSH_EXC_INFO

PUSH_NULL

RETURN_GENERATOR

RETURN_VALUE

STORE_SUBSCR

TO_BOOL

BINARY_OP

BUILD_LIST

BUILD_MAP

BUILD_TUPLE

CALL

CALL_FUNCTION_EX

CALL_INTRINSIC_1

CALL_KW

COMPARE_OP

CONTAINS_OP

COPY

COPY_FREE_VARS

DELETE_ATTR

DICT_MERGE

EXTENDED_ARG

FOR_ITER

IS_OP

JUMP_BACKWARD

JUMP_FORWARD

LIST_EXTEND

LOAD_ATTR

LOAD_CONST

LOAD_DEREF

LOAD_FAST

LOAD_FAST_LOAD_FAST

LOAD_GLOBAL

MAKE_CELL

POP_JUMP_IF_FALSE

POP_JUMP_IF_NONE

POP_JUMP_IF_NOT_NONE

POP_JUMP_IF_TRUE

RETURN_CONST

SET_FUNCTION_ATTRIBUTE

STORE_ATTR

STORE_DEREF

STORE_FAST

STORE_FAST_STORE_FAST

SWAP

UNPACK_SEQUENCE

YIELD_VALUE

RESUME

BINARY_OP_ADD_INT

BINARY_OP_ADD_UNICODE

BINARY_SUBSCR_LIST_INT

BINARY_SUBSCR_TUPLE_INT

CALL_BOUND_METHOD_EXACT_ARGS

CALL_BOUND_METHOD_GENERAL

CALL_BUILTIN_CLASS

CALL_BUILTIN_FAST

CALL_BUILTIN_FAST_WITH_KEYWORDS

CALL_ISINSTANCE

CALL_LEN