Pystats results

benchmark: python_startup
fork: python
ref: 0ac40acec045c4ce780cf7d887fcbe4c661e82b7
commit hash: 0ac40ac
commit date: 2024-12-14T17:25:49+02:00

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	1,001,840	21.4%	21.4%
LOAD_CONST_IMMORTAL	304,820	6.5%	27.9%
STORE_FAST	232,720	5.0%	32.8%
POP_JUMP_IF_FALSE	221,940	4.7%	37.5%
LOAD_GLOBAL_MODULE	184,420	3.9%	41.5%
RETURN_VALUE	135,580	2.9%	44.4%
RESUME_CHECK	132,680	2.8%	47.2%
COMPARE_OP_INT	116,180	2.5%	49.7%
LOAD_FAST_LOAD_FAST	110,760	2.4%	52.0%
LOAD_ATTR_INSTANCE_VALUE	106,440	2.3%	54.3%
POP_TOP	97,180	2.1%	56.4%
POP_JUMP_IF_NOT_NONE	91,700	2.0%	58.3%
LOAD_ATTR_MODULE	91,040	1.9%	60.3%
TO_BOOL_BOOL	89,980	1.9%	62.2%
LOAD_GLOBAL_BUILTIN	88,140	1.9%	64.1%	4.4%
STORE_ATTR_INSTANCE_VALUE	86,020	1.8%	65.9%
POP_JUMP_IF_TRUE	82,900	1.8%	67.7%
BUILD_TUPLE	64,900	1.4%	69.1%
LOAD_CONST	64,080	1.4%	70.4%
PUSH_NULL	59,300	1.3%	71.7%
LOAD_ATTR_METHOD_WITH_VALUES	56,420	1.2%	72.9%
LOAD_SMALL_INT	54,520	1.2%	74.1%
CALL_PY_EXACT_ARGS	54,320	1.2%	75.2%
POP_JUMP_IF_NONE	51,280	1.1%	76.3%
JUMP_BACKWARD	45,500	1.0%	77.3%
FOR_ITER_TUPLE	45,260	1.0%	78.2%
CALL_BUILTIN_FAST	43,500	0.9%	79.2%
LOAD_ATTR_METHOD_NO_DICT	39,340	0.8%	80.0%
LOAD_ATTR	38,180	0.8%	80.8%
NOP	34,700	0.7%	81.6%
SWAP	34,300	0.7%	82.3%
TO_BOOL_NONE	34,000	0.7%	83.0%
TO_BOOL	33,740	0.7%	83.7%
UNPACK_SEQUENCE_TWO_TUPLE	33,160	0.7%	84.4%
COPY	29,960	0.6%	85.1%
LOAD_DEREF	29,960	0.6%	85.7%
LOAD_SPECIAL	29,760	0.6%	86.4%
LOAD_GLOBAL	28,300	0.6%	87.0%
INTERPRETER_EXIT	27,680	0.6%	87.5%
CALL_NON_PY_GENERAL	27,140	0.6%	88.1%
CALL	26,100	0.6%	88.7%
CALL_PY_GENERAL	25,720	0.5%	89.2%
STORE_ATTR	24,220	0.5%	89.7%
STORE_FAST_STORE_FAST	23,960	0.5%	90.3%
CALL_FUNCTION_EX	22,740	0.5%	90.7%
JUMP_FORWARD	22,740	0.5%	91.2%
BUILD_MAP	22,520	0.5%	91.7%
CALL_LIST_APPEND	21,660	0.5%	92.2%
MAKE_CELL	19,020	0.4%	92.6%
DICT_MERGE	18,600	0.4%	93.0%
CALL_BUILTIN_FAST_WITH_KEYWORDS	18,320	0.4%	93.4%
CALL_ISINSTANCE	18,320	0.4%	93.8%
COMPARE_OP	18,140	0.4%	94.1%
CALL_KW_PY	17,320	0.4%	94.5%
GET_ITER	15,740	0.3%	94.8%
BUILD_LIST	15,480	0.3%	95.2%
DELETE_ATTR	11,760	0.3%	95.4%
COMPARE_OP_STR	10,740	0.2%	95.7%
CALL_METHOD_DESCRIPTOR_FAST	9,240	0.2%	95.9%
IS_OP	8,080	0.2%	96.0%
MAKE_FUNCTION	7,860	0.2%	96.2%
SET_FUNCTION_ATTRIBUTE	7,860	0.2%	96.4%
STORE_DEREF	7,860	0.2%	96.5%
COPY_FREE_VARS	7,640	0.2%	96.7%
TO_BOOL_STR	7,620	0.2%	96.9%
LOAD_ATTR_SLOT	7,220	0.2%	97.0%
LOAD_ATTR_CLASS	7,200	0.2%	97.2%
STORE_SUBSCR_DICT	7,200	0.2%	97.3%
RESUME	6,820	0.1%	97.5%
BINARY_OP_MULTIPLY_INT	6,820	0.1%	97.6%
CALL_BUILTIN_O	6,820	0.1%	97.7%
BINARY_OP	5,960	0.1%	97.9%
BINARY_SUBSCR	5,400	0.1%	98.0%
CALL_METHOD_DESCRIPTOR_O	4,320	0.1%	98.1%
BINARY_SLICE	4,120	0.1%	98.2%
BINARY_SUBSCR_TUPLE_INT	4,120	0.1%	98.3%
CALL_LEN	4,120	0.1%	98.3%
CALL_METHOD_DESCRIPTOR_NOARGS	4,120	0.1%	98.4%
BINARY_SUBSCR_LIST_INT	4,100	0.1%	98.5%
UNPACK_SEQUENCE	3,940	0.1%	98.6%
CHECK_EXC_MATCH	3,920	0.1%	98.7%
POP_EXCEPT	3,920	0.1%	98.8%
PUSH_EXC_INFO	3,920	0.1%	98.9%
RETURN_GENERATOR	3,920	0.1%	98.9%
EXTENDED_ARG	3,920	0.1%	99.0%
YIELD_VALUE	3,920	0.1%	99.1%
BINARY_OP_ADD_INT	3,920	0.1%	99.2%
CALL_BUILTIN_CLASS	3,900	0.1%	99.3%
CALL_INTRINSIC_1	3,720	0.1%	99.4%
LIST_EXTEND	3,720	0.1%	99.4%
UNPACK_SEQUENCE_TUPLE	3,700	0.1%	99.5%
FOR_ITER_RANGE	3,520	0.1%	99.6%
FOR_ITER_LIST	3,500	0.1%	99.7%
TO_BOOL_LIST	3,500	0.1%	99.7%
BINARY_OP_SUBTRACT_INT	3,300	0.1%	99.8%
FOR_ITER	2,880	0.1%	99.9%
CALL_KW	1,860	0.0%	99.9%
STORE_SUBSCR	940	0.0%	99.9%
TO_BOOL_INT	800	0.0%	99.9%
CONTAINS_OP	440	0.0%	100.0%
CALL_KW_NON_PY	400	0.0%	100.0%
LOAD_ATTR_METHOD_LAZY_DICT	400	0.0%	100.0%
BINARY_OP_INPLACE_ADD_UNICODE	200	0.0%	100.0%
BINARY_OP_ADD_UNICODE	200	0.0%	100.0%
CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS	200	0.0%	100.0%
CALL_STR_1	200	0.0%	100.0%
CALL_TYPE_1	200	0.0%	100.0%
LOAD_ATTR_CLASS_WITH_METACLASS_CHECK	200	0.0%	100.0%
TO_BOOL_ALWAYS_TRUE	200	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
POP_JUMP_IF_FALSE LOAD_FAST	152,560	3.3%	3.3%
LOAD_FAST LOAD_CONST_IMMORTAL	112,660	2.4%	5.7%
STORE_FAST LOAD_FAST	101,460	2.2%	7.8%
LOAD_FAST LOAD_FAST	96,720	2.1%	9.9%
LOAD_FAST LOAD_ATTR_INSTANCE_VALUE	96,680	2.1%	11.9%
COMPARE_OP_INT POP_JUMP_IF_FALSE	83,800	1.8%	13.7%
LOAD_GLOBAL_MODULE LOAD_ATTR_MODULE	82,700	1.8%	15.5%
LOAD_FAST STORE_ATTR_INSTANCE_VALUE	76,860	1.6%	17.1%
LOAD_CONST_IMMORTAL COMPARE_OP_INT	66,900	1.4%	18.6%
LOAD_FAST POP_JUMP_IF_NOT_NONE	65,460	1.4%	20.0%
RESUME_CHECK LOAD_FAST	62,040	1.3%	21.3%
TO_BOOL_BOOL POP_JUMP_IF_FALSE	61,340	1.3%	22.6%
LOAD_CONST_IMMORTAL RETURN_VALUE	58,260	1.2%	23.8%
POP_JUMP_IF_NOT_NONE LOAD_FAST	57,000	1.2%	25.0%
RETURN_VALUE POP_TOP	53,340	1.1%	26.2%
LOAD_FAST LOAD_ATTR_METHOD_WITH_VALUES	52,600	1.1%	27.3%
CALL_PY_EXACT_ARGS RESUME_CHECK	50,820	1.1%	28.4%
LOAD_GLOBAL_BUILTIN LOAD_FAST	48,160	1.0%	29.4%
STORE_ATTR_INSTANCE_VALUE LOAD_CONST_IMMORTAL	42,620	0.9%	30.3%
LOAD_FAST LOAD_SMALL_INT	42,140	0.9%	31.2%
POP_TOP LOAD_CONST_IMMORTAL	41,980	0.9%	32.1%
LOAD_CONST_IMMORTAL LOAD_FAST	41,520	0.9%	33.0%
POP_JUMP_IF_TRUE LOAD_FAST	41,320	0.9%	33.9%
LOAD_ATTR_MODULE PUSH_NULL	40,560	0.9%	34.7%
LOAD_CONST_IMMORTAL LOAD_CONST_IMMORTAL	38,240	0.8%	35.6%
POP_JUMP_IF_NONE LOAD_FAST	36,400	0.8%	36.3%
STORE_ATTR_INSTANCE_VALUE LOAD_FAST	35,800	0.8%	37.1%
JUMP_BACKWARD FOR_ITER_TUPLE	33,460	0.7%	37.8%
COMPARE_OP_INT POP_JUMP_IF_TRUE	32,380	0.7%	38.5%
STORE_FAST LOAD_GLOBAL_MODULE	31,460	0.7%	39.2%
PUSH_NULL LOAD_FAST	31,380	0.7%	39.8%
POP_TOP LOAD_FAST	30,800	0.7%	40.5%
LOAD_FAST_LOAD_FAST LOAD_FAST	30,360	0.6%	41.1%
LOAD_FAST BUILD_TUPLE	30,180	0.6%	41.8%
LOAD_FAST TO_BOOL_BOOL	29,880	0.6%	42.4%
STORE_FAST STORE_FAST	29,760	0.6%	43.1%
LOAD_FAST LOAD_ATTR_METHOD_NO_DICT	29,740	0.6%	43.7%
LOAD_FAST POP_JUMP_IF_NONE	29,560	0.6%	44.3%
RESUME_CHECK LOAD_GLOBAL_MODULE	29,040	0.6%	44.9%
TO_BOOL_BOOL POP_JUMP_IF_TRUE	28,640	0.6%	45.6%
RETURN_VALUE STORE_FAST	27,280	0.6%	46.1%
LOAD_FAST_LOAD_FAST LOAD_FAST_LOAD_FAST	26,260	0.6%	46.7%
LOAD_FAST LOAD_GLOBAL_MODULE	25,940	0.6%	47.2%
LOAD_FAST LOAD_ATTR	25,840	0.6%	47.8%
LOAD_CONST_IMMORTAL CALL_BUILTIN_FAST	24,060	0.5%	48.3%
LOAD_CONST_IMMORTAL STORE_FAST	23,960	0.5%	48.8%
RETURN_VALUE INTERPRETER_EXIT	23,760	0.5%	49.3%
CACHE RESUME_CHECK	23,080	0.5%	49.8%
NOP LOAD_FAST	22,940	0.5%	50.3%
FOR_ITER_TUPLE STORE_FAST	22,740	0.5%	50.8%
UNPACK_SEQUENCE_TWO_TUPLE STORE_FAST_STORE_FAST	22,220	0.5%	51.3%
STORE_FAST JUMP_FORWARD	21,940	0.5%	51.7%
LOAD_ATTR_METHOD_WITH_VALUES LOAD_FAST	21,420	0.5%	52.2%
TO_BOOL_NONE POP_JUMP_IF_FALSE	20,200	0.4%	52.6%
LOAD_SMALL_INT COMPARE_OP_INT	19,920	0.4%	53.0%
LOAD_FAST RETURN_VALUE	19,820	0.4%	53.5%
LOAD_GLOBAL_MODULE TO_BOOL_BOOL	19,560	0.4%	53.9%
LOAD_GLOBAL_MODULE COMPARE_OP_INT	19,020	0.4%	54.3%
DICT_MERGE CALL_FUNCTION_EX	18,600	0.4%	54.7%
LOAD_FAST COPY	18,400	0.4%	55.1%
CALL_PY_GENERAL RESUME_CHECK	18,320	0.4%	55.5%
CALL_LIST_APPEND JUMP_BACKWARD	18,160	0.4%	55.9%
CALL_BUILTIN_FAST STORE_FAST	18,140	0.4%	56.2%
LOAD_ATTR_INSTANCE_VALUE POP_JUMP_IF_NOT_NONE	17,720	0.4%	56.6%
LOAD_FAST LOAD_GLOBAL_BUILTIN	17,520	0.4%	57.0%
POP_JUMP_IF_FALSE LOAD_GLOBAL_MODULE	17,500	0.4%	57.4%
RESUME_CHECK LOAD_GLOBAL_BUILTIN	17,420	0.4%	57.7%
CALL_ISINSTANCE TO_BOOL_BOOL	17,340	0.4%	58.1%
CALL_KW_PY RESUME_CHECK	17,320	0.4%	58.5%
LOAD_ATTR_INSTANCE_VALUE RETURN_VALUE	17,120	0.4%	58.8%
TO_BOOL POP_JUMP_IF_FALSE	16,860	0.4%	59.2%
LOAD_CONST CALL_KW_PY	16,380	0.3%	59.6%
LOAD_GLOBAL_MODULE LOAD_FAST	15,880	0.3%	59.9%
LOAD_ATTR_METHOD_NO_DICT LOAD_FAST	15,660	0.3%	60.2%
LOAD_ATTR_INSTANCE_VALUE TO_BOOL_NONE	15,580	0.3%	60.6%
POP_JUMP_IF_TRUE JUMP_BACKWARD	15,120	0.3%	60.9%
SWAP SWAP	15,080	0.3%	61.2%
BUILD_MAP LOAD_FAST	14,880	0.3%	61.5%
COPY LOAD_SPECIAL	14,880	0.3%	61.8%
LOAD_FAST DICT_MERGE	14,880	0.3%	62.2%
LOAD_SMALL_INT BUILD_TUPLE	14,880	0.3%	62.5%
LOAD_SPECIAL SWAP	14,880	0.3%	62.8%
SWAP LOAD_SPECIAL	14,880	0.3%	63.1%
LOAD_ATTR_MODULE LOAD_FAST	14,840	0.3%	63.4%
STORE_FAST LOAD_GLOBAL_BUILTIN	14,340	0.3%	63.7%
LOAD_FAST CALL_PY_EXACT_ARGS	14,260	0.3%	64.0%
LOAD_FAST STORE_ATTR	14,020	0.3%	64.3%
BUILD_TUPLE CALL_LIST_APPEND	13,960	0.3%	64.6%
LOAD_ATTR_METHOD_NO_DICT LOAD_GLOBAL_MODULE	13,960	0.3%	64.9%
TO_BOOL_NONE POP_JUMP_IF_TRUE	13,800	0.3%	65.2%
LOAD_FAST TO_BOOL	12,400	0.3%	65.5%
LOAD_FAST_LOAD_FAST BUILD_TUPLE	12,400	0.3%	65.7%
STORE_FAST LOAD_CONST_IMMORTAL	12,400	0.3%	66.0%
JUMP_FORWARD LOAD_FAST	11,980	0.3%	66.3%
LOAD_FAST DELETE_ATTR	11,760	0.3%	66.5%
BUILD_LIST STORE_FAST	11,360	0.2%	66.8%
LOAD_FAST LOAD_CONST	11,360	0.2%	67.0%
POP_JUMP_IF_TRUE POP_TOP	11,160	0.2%	67.2%
GET_ITER FOR_ITER_TUPLE	11,140	0.2%	67.5%
LOAD_FAST CALL_BUILTIN_FAST_WITH_KEYWORDS	11,020	0.2%	67.7%

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	3,920	95.1%
LOAD_CONST_IMMORTAL	200	4.9%

Successors	Count	Percentage
STORE_FAST	3,920	95.1%
LOAD_FAST	200	4.9%

CACHE

Successors and predecessors for CACHE

Successors	Count	Percentage
RESUME_CHECK	23,080	82.1%
POP_TOP	3,920	14.0%
RESUME	1,100	3.9%

BINARY_SUBSCR

Successors and predecessors for BINARY_SUBSCR

Predecessors	Count	Percentage
LOAD_CONST	3,720	68.9%
LOAD_SMALL_INT	980	18.1%
BINARY_SUBSCR	700	13.0%

Successors	Count	Percentage
GET_ITER	3,720	68.9%
BINARY_SUBSCR	700	13.0%
BINARY_SUBSCR_LIST_INT	300	5.6%
BINARY_SUBSCR_TUPLE_INT	240	4.4%
STORE_DEREF	220	4.1%

CHECK_EXC_MATCH

Successors and predecessors for CHECK_EXC_MATCH

Predecessors	Count	Percentage
LOAD_GLOBAL_BUILTIN	3,700	94.4%
LOAD_GLOBAL	220	5.6%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	3,920	100.0%

GET_ITER

Successors and predecessors for GET_ITER

Predecessors	Count	Percentage
BUILD_TUPLE	7,440	47.3%
BINARY_SUBSCR	3,720	23.6%
LOAD_CONST	3,720	23.6%
LOAD_FAST	860	5.5%

Successors	Count	Percentage
FOR_ITER_TUPLE	11,140	70.8%
FOR_ITER_LIST	3,260	20.7%
FOR_ITER	1,340	8.5%

INTERPRETER_EXIT

Successors and predecessors for INTERPRETER_EXIT

Predecessors	Count	Percentage
RETURN_VALUE	23,760	85.8%
YIELD_VALUE	3,920	14.2%

MAKE_FUNCTION

Successors and predecessors for MAKE_FUNCTION

Predecessors	Count	Percentage
LOAD_CONST	7,860	100.0%

Successors	Count	Percentage
SET_FUNCTION_ATTRIBUTE	7,860	100.0%

NOP

Successors and predecessors for NOP

Predecessors	Count	Percentage
POP_JUMP_IF_FALSE	7,240	20.9%
POP_JUMP_IF_NONE	7,240	20.9%
POP_JUMP_IF_TRUE	4,140	11.9%
STORE_FAST	4,120	11.9%
DELETE_ATTR	3,920	11.3%

Successors	Count	Percentage
LOAD_FAST	22,940	66.1%
LOAD_GLOBAL_BUILTIN	6,960	20.1%
LOAD_GLOBAL_MODULE	3,260	9.4%
LOAD_GLOBAL	1,340	3.9%
LOAD_CONST_IMMORTAL	200	0.6%

POP_EXCEPT

Successors and predecessors for POP_EXCEPT

Predecessors	Count	Percentage
POP_TOP	3,920	100.0%

Successors	Count	Percentage
LOAD_CONST_IMMORTAL	3,920	100.0%

POP_TOP

Successors and predecessors for POP_TOP

Predecessors	Count	Percentage
RETURN_VALUE	53,340	54.9%
POP_JUMP_IF_TRUE	11,160	11.5%
CALL_NON_PY_GENERAL	7,400	7.6%
CALL_METHOD_DESCRIPTOR_O	4,120	4.2%
CACHE	3,920	4.0%

Successors	Count	Percentage
LOAD_CONST_IMMORTAL	41,980	43.2%
LOAD_FAST	30,800	31.7%
LOAD_GLOBAL_MODULE	6,520	6.7%
JUMP_BACKWARD	4,580	4.7%
POP_EXCEPT	3,920	4.0%

PUSH_EXC_INFO

Successors and predecessors for PUSH_EXC_INFO

Predecessors	Count	Percentage
CALL_BUILTIN_FAST	3,700	94.4%
CALL	220	5.6%

Successors	Count	Percentage
LOAD_GLOBAL_BUILTIN	3,480	88.8%
LOAD_GLOBAL	440	11.2%

PUSH_NULL

Successors and predecessors for PUSH_NULL

Predecessors	Count	Percentage
LOAD_ATTR_MODULE	40,560	68.4%
LOAD_FAST	8,460	14.3%
LOAD_ATTR	6,360	10.7%
LOAD_DEREF	3,720	6.3%
LOAD_FAST_LOAD_FAST	200	0.3%

Successors	Count	Percentage
LOAD_FAST	31,380	52.9%
CALL_NON_PY_GENERAL	10,760	18.1%
LOAD_FAST_LOAD_FAST	4,120	6.9%
LOAD_CONST	3,720	6.3%
LOAD_DEREF	3,720	6.3%

RETURN_GENERATOR

Successors and predecessors for RETURN_GENERATOR

Predecessors	Count	Percentage
CALL_FUNCTION_EX	3,920	100.0%

Successors	Count	Percentage
LOAD_FAST	3,920	100.0%

RETURN_VALUE

Successors and predecessors for RETURN_VALUE

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	58,260	43.0%
LOAD_FAST	19,820	14.6%
LOAD_ATTR_INSTANCE_VALUE	17,120	12.6%
BUILD_TUPLE	8,260	6.1%
RETURN_VALUE	7,660	5.6%

Successors	Count	Percentage
POP_TOP	53,340	39.3%
STORE_FAST	27,280	20.1%
INTERPRETER_EXIT	23,760	17.5%
RETURN_VALUE	7,660	5.6%
COPY	4,120	3.0%

STORE_SUBSCR

Successors and predecessors for STORE_SUBSCR

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	940	100.0%

Successors	Count	Percentage
STORE_SUBSCR_DICT	500	53.2%
BUILD_LIST	220	23.4%
LOAD_GLOBAL	220	23.4%

TO_BOOL

Successors and predecessors for TO_BOOL

Predecessors	Count	Percentage
LOAD_FAST	12,400	36.8%
LOAD_ATTR_INSTANCE_VALUE	9,140	27.1%
TO_BOOL	2,360	7.0%
COPY	1,820	5.4%
LOAD_ATTR	1,540	4.6%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	16,860	50.0%
POP_JUMP_IF_TRUE	6,340	18.8%
TO_BOOL_BOOL	5,320	15.8%
TO_BOOL	2,360	7.0%
TO_BOOL_NONE	2,280	6.8%

BINARY_OP

Successors and predecessors for BINARY_OP

Predecessors	Count	Percentage
CALL_LEN	3,920	65.8%
LOAD_FAST	1,060	17.8%
LOAD_CONST	440	7.4%
BINARY_OP	340	5.7%
BUILD_LIST	200	3.4%

Successors	Count	Percentage
COMPARE_OP_STR	3,920	65.8%
STORE_FAST	840	14.1%
BINARY_OP	340	5.7%
RETURN_VALUE	220	3.7%
BINARY_OP_MULTIPLY_INT	220	3.7%

BUILD_LIST

Successors and predecessors for BUILD_LIST

Predecessors	Count	Percentage
LOAD_FAST	3,920	25.3%
POP_JUMP_IF_FALSE	3,720	24.0%
RESUME_CHECK	3,500	22.6%
STORE_SUBSCR_DICT	3,500	22.6%
STORE_SUBSCR	220	1.4%

Successors	Count	Percentage
STORE_FAST	11,360	73.4%
LOAD_FAST	3,720	24.0%
BINARY_OP	200	1.3%
LOAD_ATTR_METHOD_NO_DICT	180	1.2%
LOAD_ATTR	20	0.1%

BUILD_MAP

Successors and predecessors for BUILD_MAP

Predecessors	Count	Percentage
BUILD_TUPLE	7,240	32.1%
LOAD_FAST	3,920	17.4%
CALL_INTRINSIC_1	3,720	16.5%
LOAD_DEREF	3,720	16.5%
RESUME_CHECK	3,500	15.5%

Successors	Count	Percentage
LOAD_FAST	14,880	66.1%
STORE_FAST	3,920	17.4%
LOAD_DEREF	3,720	16.5%

BUILD_TUPLE

Successors and predecessors for BUILD_TUPLE

Predecessors	Count	Percentage
LOAD_FAST	30,180	46.5%
LOAD_SMALL_INT	14,880	22.9%
LOAD_FAST_LOAD_FAST	12,400	19.1%
BUILD_TUPLE	3,720	5.7%
LOAD_GLOBAL_BUILTIN	3,500	5.4%

Successors	Count	Percentage
CALL_LIST_APPEND	13,960	21.5%
RETURN_VALUE	8,260	12.7%
LOAD_CONST	7,860	12.1%
GET_ITER	7,440	11.5%
LOAD_FAST	7,440	11.5%

CALL

Successors and predecessors for CALL

Predecessors	Count	Percentage
LOAD_FAST	6,340	24.3%
LOAD_CONST_IMMORTAL	4,120	15.8%
LOAD_FAST_LOAD_FAST	2,560	9.8%
LOAD_ATTR	2,200	8.4%
PUSH_NULL	2,080	8.0%

Successors	Count	Percentage
RESUME	3,740	14.3%
CALL_PY_EXACT_ARGS	3,460	13.3%
CALL_BUILTIN_FAST	2,040	7.8%
CALL_NON_PY_GENERAL	1,800	6.9%
CALL_PY_GENERAL	1,780	6.8%

CALL_FUNCTION_EX

Successors and predecessors for CALL_FUNCTION_EX

Predecessors	Count	Percentage
DICT_MERGE	18,600	81.8%
LOAD_FAST	4,140	18.2%

Successors	Count	Percentage
RETURN_GENERATOR	3,920	17.6%
POP_TOP	3,720	16.7%
COPY_FREE_VARS	3,720	16.7%
LOAD_FAST	3,720	16.7%
MAKE_CELL	3,720	16.7%

CALL_INTRINSIC_1

Successors and predecessors for CALL_INTRINSIC_1

Predecessors	Count	Percentage
LIST_EXTEND	3,720	100.0%

Successors	Count	Percentage
BUILD_MAP	3,720	100.0%

CALL_KW

Successors and predecessors for CALL_KW

Predecessors	Count	Percentage
LOAD_CONST	1,860	100.0%

Successors	Count	Percentage
CALL_KW_PY	940	50.5%
RESUME	660	35.5%
RESUME_CHECK	220	11.8%
CALL_KW_NON_PY	40	2.2%

COMPARE_OP

Successors and predecessors for COMPARE_OP

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	7,740	42.7%
LOAD_GLOBAL_BUILTIN	3,300	18.2%
LOAD_SMALL_INT	2,800	15.4%
LOAD_GLOBAL	1,540	8.5%
LOAD_GLOBAL_MODULE	1,380	7.6%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	9,220	50.8%
COMPARE_OP_INT	6,900	38.0%
POP_JUMP_IF_TRUE	1,100	6.1%
COMPARE_OP	700	3.9%
COMPARE_OP_STR	220	1.2%

CONTAINS_OP

Successors and predecessors for CONTAINS_OP

Predecessors	Count	Percentage
LOAD_ATTR	440	100.0%

Successors	Count	Percentage
POP_JUMP_IF_TRUE	440	100.0%

COPY

Successors and predecessors for COPY

Predecessors	Count	Percentage
LOAD_FAST	18,400	61.4%
RETURN_VALUE	4,120	13.8%
CALL_NON_PY_GENERAL	3,500	11.7%
LOAD_ATTR_INSTANCE_VALUE	3,500	11.7%
CALL	220	0.7%

Successors	Count	Percentage
LOAD_SPECIAL	14,880	49.7%
TO_BOOL_NONE	9,780	32.6%
TO_BOOL_BOOL	3,280	10.9%
TO_BOOL	1,820	6.1%
LOAD_FAST	200	0.7%

COPY_FREE_VARS

Successors and predecessors for COPY_FREE_VARS

Predecessors	Count	Percentage
CALL_FUNCTION_EX	3,720	48.7%
CALL_PY_GENERAL	3,700	48.4%
CALL	220	2.9%

Successors	Count	Percentage
RESUME_CHECK	7,200	94.2%
RESUME	440	5.8%

DELETE_ATTR

Successors and predecessors for DELETE_ATTR

Predecessors	Count	Percentage
LOAD_FAST	11,760	100.0%

Successors	Count	Percentage
LOAD_FAST	7,840	66.7%
NOP	3,920	33.3%

DICT_MERGE

Successors and predecessors for DICT_MERGE

Predecessors	Count	Percentage
LOAD_FAST	14,880	80.0%
LOAD_DEREF	3,720	20.0%

Successors	Count	Percentage
CALL_FUNCTION_EX	18,600	100.0%

EXTENDED_ARG

Successors and predecessors for EXTENDED_ARG

Predecessors	Count	Percentage
LOAD_FAST	3,920	100.0%

Successors	Count	Percentage
POP_JUMP_IF_NONE	3,720	94.9%
POP_JUMP_IF_NOT_NONE	200	5.1%

FOR_ITER

Successors and predecessors for FOR_ITER

Predecessors	Count	Percentage
GET_ITER	1,340	46.5%
JUMP_BACKWARD	1,300	45.1%
FOR_ITER	240	8.3%

Successors	Count	Percentage
STORE_FAST	660	22.9%
FOR_ITER_TUPLE	660	22.9%
FOR_ITER	240	8.3%
FOR_ITER_LIST	240	8.3%
LOAD_GLOBAL	220	7.6%

IS_OP

Successors and predecessors for IS_OP

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	4,140	51.2%
LOAD_GLOBAL_MODULE	3,720	46.0%
LOAD_GLOBAL	220	2.7%

Successors	Count	Percentage
STORE_FAST	4,140	51.2%
POP_JUMP_IF_FALSE	3,940	48.8%

JUMP_BACKWARD

Successors and predecessors for JUMP_BACKWARD

Predecessors	Count	Percentage
CALL_LIST_APPEND	18,160	39.9%
POP_JUMP_IF_TRUE	15,120	33.2%
POP_TOP	4,580	10.1%
POP_JUMP_IF_FALSE	3,720	8.2%
POP_JUMP_IF_NOT_NONE	3,720	8.2%

Successors	Count	Percentage
FOR_ITER_TUPLE	33,460	73.5%
LOAD_FAST	7,440	16.4%
FOR_ITER_RANGE	3,300	7.3%
FOR_ITER	1,300	2.9%

JUMP_FORWARD

Successors and predecessors for JUMP_FORWARD

Predecessors	Count	Percentage
STORE_FAST	21,940	96.5%
POP_JUMP_IF_FALSE	400	1.8%
POP_TOP	200	0.9%
POP_JUMP_IF_NOT_NONE	200	0.9%

Successors	Count	Percentage
LOAD_FAST	11,980	52.7%
LOAD_GLOBAL_MODULE	6,600	29.0%
LOAD_CONST_IMMORTAL	3,720	16.4%
LOAD_GLOBAL	440	1.9%

LIST_EXTEND

Successors and predecessors for LIST_EXTEND

Predecessors	Count	Percentage
LOAD_FAST	3,720	100.0%

Successors	Count	Percentage
CALL_INTRINSIC_1	3,720	100.0%

LOAD_ATTR

Successors and predecessors for LOAD_ATTR

Predecessors	Count	Percentage
LOAD_FAST	25,840	67.7%
LOAD_GLOBAL	4,620	12.1%
LOAD_GLOBAL_MODULE	4,460	11.7%
LOAD_ATTR	1,420	3.7%
LOAD_FAST_LOAD_FAST	920	2.4%

Successors	Count	Percentage
PUSH_NULL	6,360	16.7%
LOAD_ATTR_INSTANCE_VALUE	6,120	16.0%
LOAD_ATTR_MODULE	4,720	12.4%
LOAD_ATTR_METHOD_WITH_VALUES	3,640	9.5%
LOAD_FAST	2,640	6.9%

LOAD_CONST

Successors and predecessors for LOAD_CONST

Predecessors	Count	Percentage
LOAD_FAST	11,360	17.7%
BUILD_TUPLE	7,860	12.3%
STORE_FAST_STORE_FAST	7,440	11.6%
LOAD_CONST_IMMORTAL	7,240	11.3%
LOAD_ATTR_SLOT	6,820	10.6%

Successors	Count	Percentage
CALL_KW_PY	16,380	25.6%
UNPACK_SEQUENCE_TWO_TUPLE	9,780	15.3%
MAKE_FUNCTION	7,860	12.3%
BINARY_OP_MULTIPLY_INT	6,600	10.3%
STORE_FAST	4,140	6.5%

LOAD_DEREF

Successors and predecessors for LOAD_DEREF

Predecessors	Count	Percentage
PUSH_NULL	3,720	12.4%
BUILD_MAP	3,720	12.4%
LOAD_CONST	3,720	12.4%
LOAD_FAST	3,720	12.4%
POP_JUMP_IF_FALSE	3,720	12.4%

Successors	Count	Percentage
LOAD_FAST_LOAD_FAST	7,640	25.5%
PUSH_NULL	3,720	12.4%
BUILD_MAP	3,720	12.4%
DICT_MERGE	3,720	12.4%
LOAD_FAST	3,720	12.4%

LOAD_FAST

Successors and predecessors for LOAD_FAST

Predecessors	Count	Percentage
POP_JUMP_IF_FALSE	152,560	15.2%
STORE_FAST	101,460	10.1%
LOAD_FAST	96,720	9.7%
RESUME_CHECK	62,040	6.2%
POP_JUMP_IF_NOT_NONE	57,000	5.7%

Successors	Count	Percentage
LOAD_CONST_IMMORTAL	112,660	11.2%
LOAD_FAST	96,720	9.7%
LOAD_ATTR_INSTANCE_VALUE	96,680	9.7%
STORE_ATTR_INSTANCE_VALUE	76,860	7.7%
POP_JUMP_IF_NOT_NONE	65,460	6.5%

LOAD_FAST_LOAD_FAST

Successors and predecessors for LOAD_FAST_LOAD_FAST

Predecessors	Count	Percentage
LOAD_FAST_LOAD_FAST	26,260	23.7%
LOAD_ATTR_METHOD_WITH_VALUES	10,900	9.8%
STORE_FAST	8,500	7.7%
POP_JUMP_IF_FALSE	8,040	7.3%
STORE_FAST_STORE_FAST	7,840	7.1%

Successors	Count	Percentage
LOAD_FAST	30,360	27.4%
LOAD_FAST_LOAD_FAST	26,260	23.7%
BUILD_TUPLE	12,400	11.2%
STORE_ATTR	8,100	7.3%
CALL_NON_PY_GENERAL	4,020	3.6%

LOAD_GLOBAL

Successors and predecessors for LOAD_GLOBAL

Predecessors	Count	Percentage
LOAD_FAST	5,520	19.5%
STORE_FAST	4,620	16.3%
POP_JUMP_IF_FALSE	2,840	10.0%
RESUME_CHECK	2,180	7.7%
RESUME	1,980	7.0%

Successors	Count	Percentage
LOAD_GLOBAL_MODULE	9,900	35.0%
LOAD_ATTR	4,620	16.3%
LOAD_GLOBAL_BUILTIN	4,540	16.0%
LOAD_FAST	2,640	9.3%
COMPARE_OP	1,540	5.4%

LOAD_SMALL_INT

Successors and predecessors for LOAD_SMALL_INT

Predecessors	Count	Percentage
LOAD_FAST	42,140	77.3%
CALL_METHOD_DESCRIPTOR_FAST	3,920	7.2%
LOAD_ATTR_METHOD_WITH_VALUES	3,500	6.4%
LOAD_ATTR_MODULE	3,500	6.4%
LOAD_ATTR	440	0.8%

Successors	Count	Percentage
COMPARE_OP_INT	19,920	36.5%
BUILD_TUPLE	14,880	27.3%
BINARY_OP_ADD_INT	3,920	7.2%
BINARY_SUBSCR_TUPLE_INT	3,880	7.1%
BINARY_SUBSCR_LIST_INT	3,800	7.0%

LOAD_SPECIAL

Successors and predecessors for LOAD_SPECIAL

Predecessors	Count	Percentage
COPY	14,880	50.0%
SWAP	14,880	50.0%

Successors	Count	Percentage
SWAP	14,880	50.0%
CALL_PY_EXACT_ARGS	9,780	32.9%
CALL_NON_PY_GENERAL	3,260	11.0%
CALL	1,840	6.2%

MAKE_CELL

Successors and predecessors for MAKE_CELL

Predecessors	Count	Percentage
MAKE_CELL	7,440	39.1%
CALL_FUNCTION_EX	3,720	19.6%
CALL_PY_GENERAL	3,700	19.5%
CALL_PY_EXACT_ARGS	3,500	18.4%
CALL	660	3.5%

Successors	Count	Percentage
RESUME_CHECK	10,920	57.4%
MAKE_CELL	7,440	39.1%
RESUME	660	3.5%

POP_JUMP_IF_FALSE

Successors and predecessors for POP_JUMP_IF_FALSE

Predecessors	Count	Percentage
COMPARE_OP_INT	83,800	37.8%
TO_BOOL_BOOL	61,340	27.6%
TO_BOOL_NONE	20,200	9.1%
TO_BOOL	16,860	7.6%
COMPARE_OP_STR	10,740	4.8%

Successors	Count	Percentage
LOAD_FAST	152,560	68.7%
LOAD_GLOBAL_MODULE	17,500	7.9%
LOAD_FAST_LOAD_FAST	8,040	3.6%
NOP	7,240	3.3%
LOAD_GLOBAL_BUILTIN	6,520	2.9%

POP_JUMP_IF_NONE

Successors and predecessors for POP_JUMP_IF_NONE

Predecessors	Count	Percentage
LOAD_FAST	29,560	57.6%
LOAD_ATTR_INSTANCE_VALUE	10,520	20.5%
LOAD_GLOBAL_MODULE	6,820	13.3%
EXTENDED_ARG	3,720	7.3%
LOAD_ATTR	440	0.9%

Successors	Count	Percentage
LOAD_FAST	36,400	71.0%
LOAD_CONST_IMMORTAL	7,640	14.9%
NOP	7,240	14.1%

POP_JUMP_IF_NOT_NONE

Successors and predecessors for POP_JUMP_IF_NOT_NONE

Predecessors	Count	Percentage
LOAD_FAST	65,460	71.4%
LOAD_ATTR_INSTANCE_VALUE	17,720	19.3%
LOAD_DEREF	3,720	4.1%
LOAD_GLOBAL_MODULE	3,500	3.8%
LOAD_ATTR	880	1.0%

Successors	Count	Percentage
LOAD_FAST	57,000	62.2%
LOAD_CONST_IMMORTAL	7,440	8.1%
LOAD_GLOBAL_BUILTIN	6,700	7.3%
LOAD_CONST	4,140	4.5%
NOP	3,920	4.3%

POP_JUMP_IF_TRUE

Successors and predecessors for POP_JUMP_IF_TRUE

Predecessors	Count	Percentage
COMPARE_OP_INT	32,380	39.1%
TO_BOOL_BOOL	28,640	34.5%
TO_BOOL_NONE	13,800	16.6%
TO_BOOL	6,340	7.6%
COMPARE_OP	1,100	1.3%

Successors	Count	Percentage
LOAD_FAST	41,320	49.8%
JUMP_BACKWARD	15,120	18.2%
POP_TOP	11,160	13.5%
LOAD_GLOBAL_MODULE	9,780	11.8%
NOP	4,140	5.0%

SET_FUNCTION_ATTRIBUTE

Successors and predecessors for SET_FUNCTION_ATTRIBUTE

Predecessors	Count	Percentage
MAKE_FUNCTION	7,860	100.0%

Successors	Count	Percentage
STORE_FAST	7,860	100.0%

STORE_ATTR

Successors and predecessors for STORE_ATTR

Predecessors	Count	Percentage
LOAD_FAST	14,020	57.9%
LOAD_FAST_LOAD_FAST	8,100	33.4%
STORE_ATTR	2,100	8.7%

Successors	Count	Percentage
LOAD_FAST	9,640	39.8%
LOAD_CONST_IMMORTAL	6,340	26.2%
STORE_ATTR_INSTANCE_VALUE	5,700	23.5%
STORE_ATTR	2,100	8.7%
LOAD_FAST_LOAD_FAST	220	0.9%

STORE_DEREF

Successors and predecessors for STORE_DEREF

Predecessors	Count	Percentage
CALL_NON_PY_GENERAL	3,920	49.9%
BINARY_SUBSCR_LIST_INT	3,500	44.5%
BINARY_SUBSCR	220	2.8%
CALL	220	2.8%

Successors	Count	Percentage
LOAD_FAST	4,140	52.7%
LOAD_GLOBAL_MODULE	3,260	41.5%
LOAD_GLOBAL	460	5.9%

STORE_FAST

Successors and predecessors for STORE_FAST

Predecessors	Count	Percentage
STORE_FAST	29,760	12.8%
RETURN_VALUE	27,280	11.7%
LOAD_CONST_IMMORTAL	23,960	10.3%
FOR_ITER_TUPLE	22,740	9.8%
CALL_BUILTIN_FAST	18,140	7.8%

Successors	Count	Percentage
LOAD_FAST	101,460	43.6%
LOAD_GLOBAL_MODULE	31,460	13.5%
STORE_FAST	29,760	12.8%
JUMP_FORWARD	21,940	9.4%
LOAD_GLOBAL_BUILTIN	14,340	6.2%

STORE_FAST_STORE_FAST

Successors and predecessors for STORE_FAST_STORE_FAST

Predecessors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	22,220	92.7%
UNPACK_SEQUENCE	1,540	6.4%
UNPACK_SEQUENCE_TUPLE	200	0.8%

Successors	Count	Percentage
LOAD_FAST	8,260	34.5%
LOAD_FAST_LOAD_FAST	7,840	32.7%
LOAD_CONST	7,440	31.1%
LOAD_CONST_IMMORTAL	220	0.9%
STORE_FAST	200	0.8%

SWAP

Successors and predecessors for SWAP

Predecessors	Count	Percentage
SWAP	15,080	44.0%
LOAD_SPECIAL	14,880	43.4%
LOAD_FAST	3,920	11.4%
LOAD_GLOBAL_BUILTIN	220	0.6%
RETURN_VALUE	200	0.6%

Successors	Count	Percentage
SWAP	15,080	44.0%
LOAD_SPECIAL	14,880	43.4%
LOAD_FAST	3,920	11.4%
POP_TOP	220	0.6%
LOAD_CONST_IMMORTAL	200	0.6%

UNPACK_SEQUENCE

Successors and predecessors for UNPACK_SEQUENCE

Predecessors	Count	Percentage
LOAD_CONST	1,380	35.0%
RETURN_VALUE	1,180	29.9%
CALL	440	11.2%
CALL_BUILTIN_FAST	240	6.1%
FOR_ITER	220	5.6%

Successors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	1,700	43.1%
STORE_FAST_STORE_FAST	1,540	39.1%
STORE_FAST	440	11.2%
UNPACK_SEQUENCE_TUPLE	260	6.6%

YIELD_VALUE

Successors and predecessors for YIELD_VALUE

Predecessors	Count	Percentage
LOAD_FAST	3,720	94.9%
LOAD_CONST_IMMORTAL	200	5.1%

Successors	Count	Percentage
INTERPRETER_EXIT	3,920	100.0%

RESUME

Successors and predecessors for RESUME

Predecessors	Count	Percentage
CALL	3,740	54.8%
CACHE	1,100	16.1%
CALL_KW	660	9.7%
MAKE_CELL	660	9.7%
COPY_FREE_VARS	440	6.5%

Successors	Count	Percentage
LOAD_FAST	3,300	48.4%
LOAD_GLOBAL	1,980	29.0%
NOP	220	3.2%
POP_TOP	220	3.2%
BUILD_LIST	220	3.2%

BINARY_OP_ADD_INT

Successors and predecessors for BINARY_OP_ADD_INT

Predecessors	Count	Percentage
LOAD_SMALL_INT	3,920	100.0%

Successors	Count	Percentage
STORE_FAST	3,920	100.0%

BINARY_OP_MULTIPLY_INT

Successors and predecessors for BINARY_OP_MULTIPLY_INT

Predecessors	Count	Percentage
LOAD_CONST	6,600	96.8%
BINARY_OP	220	3.2%

Successors	Count	Percentage
RETURN_VALUE	6,820	100.0%

BINARY_OP_SUBTRACT_INT

Successors and predecessors for BINARY_OP_SUBTRACT_INT

Predecessors	Count	Percentage
LOAD_FAST	3,080	93.3%
BINARY_OP	220	6.7%

Successors	Count	Percentage
STORE_FAST	3,300	100.0%

BINARY_SUBSCR_LIST_INT

Successors and predecessors for BINARY_SUBSCR_LIST_INT

Predecessors	Count	Percentage
LOAD_SMALL_INT	3,800	92.7%
BINARY_SUBSCR	300	7.3%

Successors	Count	Percentage
STORE_DEREF	3,500	85.4%
CALL_BUILTIN_CLASS	360	8.8%
CALL_PY_GENERAL	180	4.4%
CALL	60	1.5%

BINARY_SUBSCR_TUPLE_INT

Successors and predecessors for BINARY_SUBSCR_TUPLE_INT

Predecessors	Count	Percentage
LOAD_SMALL_INT	3,880	94.2%
BINARY_SUBSCR	240	5.8%

Successors	Count	Percentage
STORE_FAST	4,120	100.0%

CALL_BUILTIN_CLASS

Successors and predecessors for CALL_BUILTIN_CLASS

Predecessors	Count	Percentage
LOAD_FAST	3,260	83.6%
BINARY_SUBSCR_LIST_INT	360	9.2%
CALL	280	7.2%

Successors	Count	Percentage
STORE_FAST	3,900	100.0%

CALL_BUILTIN_FAST

Successors and predecessors for CALL_BUILTIN_FAST

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	24,060	55.3%
LOAD_ATTR_INSTANCE_VALUE	6,960	16.0%
LOAD_FAST	6,720	15.4%
LOAD_FAST_LOAD_FAST	3,720	8.6%
CALL	2,040	4.7%

Successors	Count	Percentage
STORE_FAST	18,140	41.7%
RETURN_VALUE	7,640	17.6%
TO_BOOL_BOOL	6,600	15.2%
PUSH_EXC_INFO	3,700	8.5%
POP_TOP	3,500	8.0%

CALL_BUILTIN_FAST_WITH_KEYWORDS

Successors and predecessors for CALL_BUILTIN_FAST_WITH_KEYWORDS

Predecessors	Count	Percentage
LOAD_FAST	11,020	60.2%
LOAD_FAST_LOAD_FAST	3,260	17.8%
LOAD_ATTR_MODULE	3,080	16.8%
CALL	960	5.2%

Successors	Count	Percentage
STORE_FAST	7,620	41.6%
LOAD_FAST	7,200	39.3%
TO_BOOL_BOOL	3,260	17.8%
TO_BOOL	240	1.3%

CALL_BUILTIN_O

Successors and predecessors for CALL_BUILTIN_O

Predecessors	Count	Percentage
LOAD_FAST	6,600	96.8%
CALL	220	3.2%

Successors	Count	Percentage
STORE_FAST	6,820	100.0%

CALL_ISINSTANCE

Successors and predecessors for CALL_ISINSTANCE

Predecessors	Count	Percentage
LOAD_GLOBAL_BUILTIN	10,820	59.1%
BUILD_TUPLE	3,260	17.8%
LOAD_ATTR_MODULE	3,260	17.8%
CALL	980	5.3%

Successors	Count	Percentage
TO_BOOL_BOOL	17,340	94.7%
TO_BOOL	980	5.3%

CALL_KW_PY

Successors and predecessors for CALL_KW_PY

Predecessors	Count	Percentage
LOAD_CONST	16,380	94.6%
CALL_KW	940	5.4%

Successors	Count	Percentage
RESUME_CHECK	17,320	100.0%

CALL_LEN

Successors and predecessors for CALL_LEN

Predecessors	Count	Percentage
LOAD_FAST	4,100	99.5%
CALL	20	0.5%

Successors	Count	Percentage
BINARY_OP	3,920	95.1%
COMPARE_OP_INT	180	4.4%
COMPARE_OP	20	0.5%

CALL_LIST_APPEND

Successors and predecessors for CALL_LIST_APPEND

Predecessors	Count	Percentage
BUILD_TUPLE	13,960	64.5%
LOAD_FAST	7,000	32.3%
CALL	700	3.2%

Successors	Count	Percentage
JUMP_BACKWARD	18,160	83.8%
LOAD_FAST	3,500	16.2%

CALL_METHOD_DESCRIPTOR_FAST

Successors and predecessors for CALL_METHOD_DESCRIPTOR_FAST

Predecessors	Count	Percentage
LOAD_FAST	8,240	89.2%
LOAD_ATTR_METHOD_NO_DICT	360	3.9%
LOAD_CONST	180	1.9%
LOAD_SMALL_INT	180	1.9%
LOAD_ATTR_METHOD_LAZY_DICT	180	1.9%

Successors	Count	Percentage
STORE_FAST	4,520	48.9%
LOAD_SMALL_INT	3,920	42.4%
TO_BOOL_BOOL	580	6.3%
LOAD_CONST	200	2.2%
TO_BOOL	20	0.2%

CALL_METHOD_DESCRIPTOR_NOARGS

Successors and predecessors for CALL_METHOD_DESCRIPTOR_NOARGS

Predecessors	Count	Percentage
LOAD_ATTR_METHOD_NO_DICT	3,700	89.8%
CALL	240	5.8%
LOAD_ATTR_METHOD_LAZY_DICT	180	4.4%

Successors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	3,700	89.8%
UNPACK_SEQUENCE	220	5.3%
POP_TOP	200	4.9%

CALL_METHOD_DESCRIPTOR_O

Successors and predecessors for CALL_METHOD_DESCRIPTOR_O

Predecessors	Count	Percentage
BUILD_TUPLE	3,880	89.8%
CALL	260	6.0%
LOAD_CONST_IMMORTAL	180	4.2%

Successors	Count	Percentage
POP_TOP	4,120	95.4%
LOAD_SMALL_INT	200	4.6%

CALL_NON_PY_GENERAL

Successors and predecessors for CALL_NON_PY_GENERAL

Predecessors	Count	Percentage
PUSH_NULL	10,760	39.6%
LOAD_FAST_LOAD_FAST	4,020	14.8%
LOAD_GLOBAL_MODULE	3,500	12.9%
LOAD_SPECIAL	3,260	12.0%
LOAD_CONST_IMMORTAL	3,260	12.0%

Successors	Count	Percentage
POP_TOP	7,400	27.3%
LOAD_FAST	7,220	26.6%
RETURN_VALUE	4,100	15.1%
STORE_DEREF	3,920	14.4%
COPY	3,500	12.9%

CALL_PY_EXACT_ARGS

Successors and predecessors for CALL_PY_EXACT_ARGS

Predecessors	Count	Percentage
LOAD_FAST	14,260	26.3%
LOAD_SPECIAL	9,780	18.0%
LOAD_CONST_IMMORTAL	6,700	12.3%
LOAD_ATTR_METHOD_WITH_VALUES	6,160	11.3%
LOAD_FAST_LOAD_FAST	3,820	7.0%

Successors	Count	Percentage
RESUME_CHECK	50,820	93.6%
MAKE_CELL	3,500	6.4%

CALL_PY_GENERAL

Successors and predecessors for CALL_PY_GENERAL

Predecessors	Count	Percentage
LOAD_FAST	10,140	39.4%
LOAD_ATTR_METHOD_WITH_VALUES	9,780	38.0%
LOAD_CONST_IMMORTAL	3,660	14.2%
CALL	1,780	6.9%
LOAD_CONST	180	0.7%

Successors	Count	Percentage
RESUME_CHECK	18,320	71.2%
COPY_FREE_VARS	3,700	14.4%
MAKE_CELL	3,700	14.4%

COMPARE_OP_INT

Successors and predecessors for COMPARE_OP_INT

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	66,900	57.6%
LOAD_SMALL_INT	19,920	17.1%
LOAD_GLOBAL_MODULE	19,020	16.4%
COMPARE_OP	6,900	5.9%
LOAD_ATTR_INSTANCE_VALUE	3,260	2.8%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	83,800	72.1%
POP_JUMP_IF_TRUE	32,380	27.9%

COMPARE_OP_STR

Successors and predecessors for COMPARE_OP_STR

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	6,600	61.5%
BINARY_OP	3,920	36.5%
COMPARE_OP	220	2.0%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	10,740	100.0%

FOR_ITER_LIST

Successors and predecessors for FOR_ITER_LIST

Predecessors	Count	Percentage
GET_ITER	3,260	93.1%
FOR_ITER	240	6.9%

Successors	Count	Percentage
LOAD_CONST_IMMORTAL	3,500	100.0%

FOR_ITER_RANGE

Successors and predecessors for FOR_ITER_RANGE

Predecessors	Count	Percentage
JUMP_BACKWARD	3,300	93.8%
FOR_ITER	220	6.2%

Successors	Count	Percentage
STORE_FAST	3,300	93.8%
LOAD_GLOBAL	220	6.2%

FOR_ITER_TUPLE

Successors and predecessors for FOR_ITER_TUPLE

Predecessors	Count	Percentage
JUMP_BACKWARD	33,460	73.9%
GET_ITER	11,140	24.6%
FOR_ITER	660	1.5%

Successors	Count	Percentage
STORE_FAST	22,740	50.2%
UNPACK_SEQUENCE_TWO_TUPLE	10,720	23.7%
LOAD_FAST	7,640	16.9%
LOAD_FAST_LOAD_FAST	3,720	8.2%
LOAD_GLOBAL	220	0.5%

LOAD_ATTR_CLASS

Successors and predecessors for LOAD_ATTR_CLASS

Predecessors	Count	Percentage
LOAD_FAST	6,520	90.6%
LOAD_ATTR	480	6.7%
LOAD_GLOBAL_MODULE	200	2.8%

Successors	Count	Percentage
LOAD_FAST	7,000	97.2%
LOAD_FAST_LOAD_FAST	200	2.8%

LOAD_ATTR_INSTANCE_VALUE

Successors and predecessors for LOAD_ATTR_INSTANCE_VALUE

Predecessors	Count	Percentage
LOAD_FAST	96,680	90.8%
LOAD_ATTR	6,120	5.7%
LOAD_FAST_LOAD_FAST	3,640	3.4%

Successors	Count	Percentage
POP_JUMP_IF_NOT_NONE	17,720	16.6%
RETURN_VALUE	17,120	16.1%
TO_BOOL_NONE	15,580	14.6%
POP_JUMP_IF_NONE	10,520	9.9%
TO_BOOL	9,140	8.6%

LOAD_ATTR_METHOD_NO_DICT

Successors and predecessors for LOAD_ATTR_METHOD_NO_DICT

Predecessors	Count	Percentage
LOAD_FAST	29,740	75.6%
LOAD_ATTR_INSTANCE_VALUE	7,760	19.7%
LOAD_ATTR	1,300	3.3%
CALL_NON_PY_GENERAL	360	0.9%
BUILD_LIST	180	0.5%

Successors	Count	Percentage
LOAD_FAST	15,660	39.8%
LOAD_GLOBAL_MODULE	13,960	35.5%
LOAD_FAST_LOAD_FAST	4,120	10.5%
CALL_METHOD_DESCRIPTOR_NOARGS	3,700	9.4%
LOAD_GLOBAL	480	1.2%

LOAD_ATTR_METHOD_WITH_VALUES

Successors and predecessors for LOAD_ATTR_METHOD_WITH_VALUES

Predecessors	Count	Percentage
LOAD_FAST	52,600	93.2%
LOAD_ATTR	3,640	6.5%
LOAD_GLOBAL_MODULE	180	0.3%

Successors	Count	Percentage
LOAD_FAST	21,420	38.0%
LOAD_FAST_LOAD_FAST	10,900	19.3%
CALL_PY_GENERAL	9,780	17.3%
CALL_PY_EXACT_ARGS	6,160	10.9%
LOAD_SMALL_INT	3,500	6.2%

LOAD_ATTR_MODULE

Successors and predecessors for LOAD_ATTR_MODULE

Predecessors	Count	Percentage
LOAD_GLOBAL_MODULE	82,700	90.8%
LOAD_ATTR	4,720	5.2%
LOAD_ATTR_MODULE	3,620	4.0%

Successors	Count	Percentage
PUSH_NULL	40,560	44.6%
LOAD_FAST	14,840	16.3%
LOAD_CONST_IMMORTAL	7,020	7.7%
STORE_FAST	6,820	7.5%
LOAD_ATTR_MODULE	3,620	4.0%

LOAD_ATTR_SLOT

Successors and predecessors for LOAD_ATTR_SLOT

Predecessors	Count	Percentage
LOAD_FAST	6,600	91.4%
LOAD_ATTR_MODULE	360	5.0%
LOAD_ATTR	260	3.6%

Successors	Count	Percentage
LOAD_CONST	6,820	94.5%
TO_BOOL_INT	360	5.0%
TO_BOOL	40	0.6%

LOAD_CONST_IMMORTAL

Successors and predecessors for LOAD_CONST_IMMORTAL

Predecessors	Count	Percentage
LOAD_FAST	112,660	37.0%
STORE_ATTR_INSTANCE_VALUE	42,620	14.0%
POP_TOP	41,980	13.8%
LOAD_CONST_IMMORTAL	38,240	12.5%
STORE_FAST	12,400	4.1%

Successors	Count	Percentage
COMPARE_OP_INT	66,900	21.9%
RETURN_VALUE	58,260	19.1%
LOAD_FAST	41,520	13.6%
LOAD_CONST_IMMORTAL	38,240	12.5%
CALL_BUILTIN_FAST	24,060	7.9%

LOAD_GLOBAL_BUILTIN

Successors and predecessors for LOAD_GLOBAL_BUILTIN

Predecessors	Count	Percentage
LOAD_FAST	17,520	19.9%
RESUME_CHECK	17,420	19.8%
STORE_FAST	14,340	16.3%
NOP	6,960	7.9%
POP_JUMP_IF_NOT_NONE	6,700	7.6%

Successors	Count	Percentage
LOAD_FAST	48,160	54.6%
CALL_ISINSTANCE	10,820	12.3%
LOAD_GLOBAL_MODULE	10,720	12.2%
CHECK_EXC_MATCH	3,700	4.2%
BUILD_TUPLE	3,500	4.0%

LOAD_GLOBAL_MODULE

Successors and predecessors for LOAD_GLOBAL_MODULE

Predecessors	Count	Percentage
STORE_FAST	31,460	17.1%
RESUME_CHECK	29,040	15.7%
LOAD_FAST	25,940	14.1%
POP_JUMP_IF_FALSE	17,500	9.5%
LOAD_ATTR_METHOD_NO_DICT	13,960	7.6%

Successors	Count	Percentage
LOAD_ATTR_MODULE	82,700	44.8%
TO_BOOL_BOOL	19,560	10.6%
COMPARE_OP_INT	19,020	10.3%
LOAD_FAST	15,880	8.6%
POP_JUMP_IF_NONE	6,820	3.7%

RESUME_CHECK

Successors and predecessors for RESUME_CHECK

Predecessors	Count	Percentage
CALL_PY_EXACT_ARGS	50,820	38.3%
CACHE	23,080	17.4%
CALL_PY_GENERAL	18,320	13.8%
CALL_KW_PY	17,320	13.1%
MAKE_CELL	10,920	8.2%

Successors	Count	Percentage
LOAD_FAST	62,040	46.8%
LOAD_GLOBAL_MODULE	29,040	21.9%
LOAD_GLOBAL_BUILTIN	17,420	13.1%
NOP	3,900	2.9%
POP_TOP	3,700	2.8%

STORE_ATTR_INSTANCE_VALUE

Successors and predecessors for STORE_ATTR_INSTANCE_VALUE

Predecessors	Count	Percentage
LOAD_FAST	76,860	89.4%
STORE_ATTR	5,700	6.6%
LOAD_FAST_LOAD_FAST	3,460	4.0%

Successors	Count	Percentage
LOAD_CONST_IMMORTAL	42,620	49.5%
LOAD_FAST	35,800	41.6%
LOAD_FAST_LOAD_FAST	3,700	4.3%
LOAD_GLOBAL_BUILTIN	3,480	4.0%
LOAD_GLOBAL	220	0.3%

STORE_SUBSCR_DICT

Successors and predecessors for STORE_SUBSCR_DICT

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	6,700	93.1%
STORE_SUBSCR	500	6.9%

Successors	Count	Percentage
BUILD_LIST	3,500	48.6%
LOAD_GLOBAL_MODULE	3,260	45.3%
LOAD_GLOBAL	240	3.3%
LOAD_FAST	200	2.8%

TO_BOOL_BOOL

Successors and predecessors for TO_BOOL_BOOL

Predecessors	Count	Percentage
LOAD_FAST	29,880	33.2%
LOAD_GLOBAL_MODULE	19,560	21.7%
CALL_ISINSTANCE	17,340	19.3%
CALL_BUILTIN_FAST	6,600	7.3%
TO_BOOL	5,320	5.9%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	61,340	68.2%
POP_JUMP_IF_TRUE	28,640	31.8%

TO_BOOL_LIST

Successors and predecessors for TO_BOOL_LIST

Predecessors	Count	Percentage
LOAD_FAST	3,260	93.1%
TO_BOOL	240	6.9%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	3,500	100.0%

TO_BOOL_NONE

Successors and predecessors for TO_BOOL_NONE

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	15,580	45.8%
COPY	9,780	28.8%
RETURN_VALUE	3,280	9.6%
LOAD_FAST	3,080	9.1%
TO_BOOL	2,280	6.7%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	20,200	59.4%
POP_JUMP_IF_TRUE	13,800	40.6%

TO_BOOL_STR

Successors and predecessors for TO_BOOL_STR

Predecessors	Count	Percentage
LOAD_FAST	4,120	54.1%
RETURN_VALUE	3,260	42.8%
TO_BOOL	240	3.1%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	7,420	97.4%
POP_JUMP_IF_TRUE	200	2.6%

UNPACK_SEQUENCE_TUPLE

Successors and predecessors for UNPACK_SEQUENCE_TUPLE

Predecessors	Count	Percentage
RETURN_VALUE	3,440	93.0%
UNPACK_SEQUENCE	260	7.0%

Successors	Count	Percentage
STORE_FAST	3,500	94.6%
STORE_FAST_STORE_FAST	200	5.4%

UNPACK_SEQUENCE_TWO_TUPLE

Successors and predecessors for UNPACK_SEQUENCE_TWO_TUPLE

Predecessors	Count	Percentage
FOR_ITER_TUPLE	10,720	32.3%
LOAD_CONST	9,780	29.5%
CALL_METHOD_DESCRIPTOR_NOARGS	3,700	11.2%
CALL_BUILTIN_FAST	3,460	10.4%
RETURN_VALUE	3,440	10.4%

Successors	Count	Percentage
STORE_FAST_STORE_FAST	22,220	67.0%
STORE_FAST	10,940	33.0%

BINARY_OP_INPLACE_ADD_UNICODE

Successors and predecessors for BINARY_OP_INPLACE_ADD_UNICODE

Predecessors	Count	Percentage
BINARY_OP_ADD_UNICODE	200	100.0%

Successors	Count	Percentage
JUMP_BACKWARD	200	100.0%

BINARY_OP_ADD_UNICODE

Successors and predecessors for BINARY_OP_ADD_UNICODE

Predecessors	Count	Percentage
LOAD_FAST	200	100.0%

Successors	Count	Percentage
BINARY_OP_INPLACE_ADD_UNICODE	200	100.0%

CALL_KW_NON_PY

Successors and predecessors for CALL_KW_NON_PY

Predecessors	Count	Percentage
LOAD_CONST	360	90.0%
CALL_KW	40	10.0%

Successors	Count	Percentage
LOAD_FAST	200	50.0%
STORE_FAST	200	50.0%

CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS

Successors and predecessors for CALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS

Predecessors	Count	Percentage
LOAD_ATTR_METHOD_NO_DICT	180	90.0%
CALL	20	10.0%

Successors	Count	Percentage
STORE_FAST	200	100.0%

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_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_CLASS_WITH_METACLASS_CHECK	180	90.0%
LOAD_ATTR	20	10.0%

LOAD_ATTR_CLASS_WITH_METACLASS_CHECK

Successors and predecessors for LOAD_ATTR_CLASS_WITH_METACLASS_CHECK

Predecessors	Count	Percentage
CALL_TYPE_1	180	90.0%
LOAD_ATTR	20	10.0%

Successors	Count	Percentage
STORE_FAST	200	100.0%

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%

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_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%

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.	5,180	25.4%
hit ⓘ Specialized instructions that complete.	14,440	70.8%

Success	Count	Ratio
Success	440	56.4%
Failure	340	43.6%

Failure kind	Count	Ratio
multiply different types	240	70.6%
add other	100	29.4%

BINARY_SLICE

specialization stats for BINARY_SLICE family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	4,120	100.0%

BINARY_SUBSCR

specialization stats for BINARY_SUBSCR family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	4,160	30.5%
hit ⓘ Specialized instructions that complete.	8,220	60.4%

Success	Count	Ratio
Success	540	43.5%
Failure	700	56.5%

Failure kind	Count	Ratio
list slice	700	100.0%

CALL

specialization stats for CALL family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	13,200	6.1%
hit ⓘ Specialized instructions that complete.	189,240	87.9%

Success	Count	Ratio
Success	12,900	100.0%
Failure	0	0.0%

CALL_KW

specialization stats for CALL_KW family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	880	47.3%

Success	Count	Ratio
Success	980	100.0%
Failure	0	0.0%

COMPARE_OP

specialization stats for COMPARE_OP family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	10,320	7.1%
hit ⓘ Specialized instructions that complete.	126,920	87.5%

Success	Count	Ratio
Success	7,120	91.0%
Failure	700	9.0%

Failure kind	Count	Ratio
different types	700	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.	440	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.	1,520	2.8%
hit ⓘ Specialized instructions that complete.	52,280	94.8%

Success	Count	Ratio
Success	1,120	82.4%
Failure	240	17.6%

Failure kind	Count	Ratio
dict values	240	100.0%

LOAD_ATTR

specialization stats for LOAD_ATTR family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	20,840	6.0%
hit ⓘ Specialized instructions that complete.	308,260	89.0%

Success	Count	Ratio
Success	16,580	95.6%
Failure	760	4.4%

LOAD_GLOBAL

specialization stats for LOAD_GLOBAL family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	13,860	4.6%
hit ⓘ Specialized instructions that complete.	268,640	89.3%
miss ⓘ Specialized instructions that deopt.	3,920	1.3%

Success	Count	Ratio
Success	14,440	100.0%
Failure	0	0.0%

STORE_ATTR

specialization stats for STORE_ATTR family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	16,420	14.9%
hit ⓘ Specialized instructions that complete.	86,020	78.0%

Success	Count	Ratio
Success	11,400	84.4%
Failure	2,100	15.6%

Failure kind	Count	Ratio
class attr simple	1,400	66.7%
not managed dict	700	33.3%

STORE_SUBSCR

specialization stats for STORE_SUBSCR family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	440	5.4%
hit ⓘ Specialized instructions that complete.	7,200	88.5%

Success	Count	Ratio
Success	500	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.	23,200	13.7%
hit ⓘ Specialized instructions that complete.	135,900	80.1%

Success	Count	Ratio
Success	8,180	77.6%
Failure	2,360	22.4%

Failure kind	Count	Ratio
tuple	1,400	59.3%
sequence	920	39.0%
dict	40	1.7%

UNPACK_SEQUENCE

specialization stats for UNPACK_SEQUENCE family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	1,980	4.9%
hit ⓘ Specialized instructions that complete.	36,860	90.3%

Success	Count	Ratio
Success	1,960	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`.	2,750,200	58.6%
Not specialized ⓘ Instructions that could be specialized but aren't, e.g. `LOAD_ATTR`, `BINARY_SLICE`.	194,220	4.1%
Specialized hits ⓘ Specialized instructions, e.g. `LOAD_ATTR_MODULE` that complete.	1,742,260	37.1%
Specialized misses ⓘ Specialized instructions, e.g. `LOAD_ATTR_MODULE` that deopt.	3,920	0.1%

Deferred by instruction

Breakdown of deferred (not specialized) instruction counts by family

Name	Count	Ratio
TO_BOOL	23,200	19.9%
LOAD_ATTR	20,840	17.9%
STORE_ATTR	16,420	14.1%
LOAD_GLOBAL	13,860	11.9%
CALL	13,200	11.3%
COMPARE_OP	10,320	8.9%
BINARY_OP	5,180	4.4%
BINARY_SUBSCR	4,160	3.6%
BINARY_SLICE	4,120	3.5%
UNPACK_SEQUENCE	1,980	1.7%

Misses by instruction

Breakdown of misses (specialized deopts) instruction counts by family

Name	Count	Ratio
LOAD_GLOBAL_BUILTIN	3,920	100.0%
CACHE	0	0.0%
CHECK_EXC_MATCH	0	0.0%
GET_ITER	0	0.0%
INTERPRETER_EXIT	0	0.0%
MAKE_FUNCTION	0	0.0%
NOP	0	0.0%
POP_EXCEPT	0	0.0%
POP_TOP	0	0.0%
PUSH_EXC_INFO	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	28,100	19.6%
Calls to Python functions inlined	115,320	80.4%
Calls via PyEval_EvalFrame (total)	28,100	19.6%
Calls via PyEval_EvalFrame (vector)	20,260	14.1%
Calls via PyEval_EvalFrame (generator)	7,840	5.5%
Calls via PyEval_EvalFrame (legacy)	0	0.0%
Calls via PyEval_EvalFrame (function vectorcall)	20,260	14.1%
Calls via PyEval_EvalFrame (build class)	0	0.0%
Calls via PyEval_EvalFrame (slot)	0	0.0%
Calls via PyEval_EvalFrame (function ex)	11,360	7.9%
Calls via PyEval_EvalFrame (api)	3,920	2.7%
Calls via PyEval_EvalFrame (method)	0	0.0%
Frame objects created	3,920	2.7%
Frames pushed	135,580	94.5%

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	227,180	55.5%
Frees to freelist	231,960
Allocations	182,220	44.5%
Allocations to 512 bytes	178,100	43.5%
Allocations to 4 kbytes	3,720	0.9%
Allocations over 4 kbytes	400	0.1%
Frees	191,036
Inline values	11,560
Interpreter mortal increfs	1,392,400	40.6%
Interpreter mortal decrefs	1,620,460	40.0%
Mortal increfs	495,612	14.4%
Mortal decrefs	622,161	15.4%
Interpreter immortal increfs	1,003,040	29.2%
Interpreter immortal decrefs	1,097,260	27.1%
Immortal increfs	539,094	15.7%
Immortal decrefs	712,857	17.6%
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	84,041
Method cache misses	14,599
Method cache collisions	13,755
Method cache dunder hits	75,012
Method cache dunder misses	4,008

GC stats

GC collections and effectiveness

Collected/visits gives some measure of efficiency.

Generation	Collections	Objects collected	Object visits	Reachable from roots	Not reachable from roots
0	0	0	0	0	0
1	0	0	0	0	0
2	0	0	0	0	0

Optimization (Tier 2) stats

statistics about the Tier 2 optimizer

	Count	Ratio
Optimization attempts ⓘ The number of times a potential trace is identified. Specifically, this occurs in the JUMP BACKWARD instruction when the counter reaches a threshold.	0
Traces created ⓘ The number of traces that were successfully created.	0
Trace stack overflow ⓘ A trace is truncated because it would require more than 5 stack frames.	0
Trace stack underflow ⓘ A potential trace is abandoned because it pops more frames than it pushes.	0
Trace too long ⓘ A trace is truncated because it is longer than the instruction buffer.	0
Trace too short ⓘ A potential trace is abandoned because it it too short.	0
Inner loop found ⓘ A trace is truncated because it has an inner loop	0
Recursive call ⓘ A trace is truncated because it has a recursive call.	0
Low confidence ⓘ A trace is abandoned because the likelihood of the jump to top being taken is too low.	0
Executors invalidated ⓘ The number of executors that were invalidated due to watched dictionary changes.	0
Traces executed ⓘ The number of traces that were executed	0
Uops executed ⓘ The total number of uops (micro-operations) that were executed	0

	Count	Ratio
Optimizer attempts ⓘ The number of times the trace optimizer (_Py_uop_analyze_and_optimize) was run.	0
Optimizer successes ⓘ The number of traces that were successfully optimized.	0
Optimizer no memory ⓘ The number of optimizations that failed due to no memory.	0
Remove globals builtins changed ⓘ The builtins changed during optimization	0
Remove globals incorrect keys ⓘ The keys in the globals dictionary aren't what was expected	0

Trace length histogram

trace length histogram

Range	Count	Ratio
<= 1	0

Optimized trace length histogram

optimized trace length histogram

Range	Count	Ratio
<= 1	0

Trace run length histogram

trace run length histogram

Range	Count	Ratio
<= 1	0

Uop execution stats

uop execution stats

Pair counts

Pair counts for top 100 Non-JIT uop pairs

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

Unsupported opcodes

unsupported opcodes

Optimizer errored out with opcode

Optimization stopped after encountering this opcode

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	240

Stats gathered on: 2024-12-15

Files

bm-20241214-vultr-x86_64-python-0ac40acec045c4ce780c-3.14.0a2+-0ac40ac-pystats-python_startup.md

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Pystats results

Execution counts

Pair counts

Predecessor/Successor Pairs

BINARY_SLICE

CACHE

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

LOAD_SMALL_INT

LOAD_SPECIAL

MAKE_CELL

POP_JUMP_IF_FALSE

POP_JUMP_IF_NONE

POP_JUMP_IF_NOT_NONE

POP_JUMP_IF_TRUE

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_MULTIPLY_INT

BINARY_OP_SUBTRACT_INT

BINARY_SUBSCR_LIST_INT

BINARY_SUBSCR_TUPLE_INT

CALL_BUILTIN_CLASS

CALL_BUILTIN_FAST

CALL_BUILTIN_FAST_WITH_KEYWORDS

CALL_BUILTIN_O

CALL_ISINSTANCE

CALL_KW_PY

CALL_LEN