bm-20250201-linux-x86_64-python-cf4c4ecc26c7e3b89f2e-3.14.0a4+-cf4c4ec-pystats-nqueens.md

Pystats results

• benchmark: nqueens
• fork: python
• ref: cf4c4ecc26c7e3b89f2e56893260a8a3319dab3d
• commit hash: cf4c4ec
• commit date: 2025-02-01T18:49:45+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	177,639,420	10.7%	10.7%
POP_TOP	103,646,580	6.3%	17.0%
STORE_FAST	97,434,720	5.9%	22.9%
JUMP_BACKWARD_NO_JIT	97,433,460	5.9%	28.7%
RESUME_CHECK	94,223,400	5.7%	34.4%
LOAD_FAST_LOAD_FAST	92,064,420	5.6%	40.0%
INTERPRETER_EXIT	89,384,520	5.4%	45.4%
YIELD_VALUE	84,292,320	5.1%	50.5%
LOAD_DEREF	79,454,100	4.8%	55.3%
BINARY_SUBSCR_TUPLE_INT	79,442,940	4.8%	60.1%
FOR_ITER_RANGE	58,979,940	3.6%	63.6%
BINARY_OP_ADD_INT	55,334,880	3.3%	67.0%
FOR_ITER_LIST	43,545,600	2.6%	69.6%
LOAD_SMALL_INT	42,931,800	2.6%	72.2%
SWAP	35,980,680	2.2%	74.3%
BINARY_SUBSCR_LIST_INT	35,980,560	2.2%	76.5%
LOAD_CONST_IMMORTAL	31,397,160	1.9%	78.4%
COPY	31,142,400	1.9%	80.3%
STORE_SUBSCR_LIST_INT	26,304,000	1.6%	81.9%
LOAD_GLOBAL_BUILTIN	24,700,140	1.5%	83.4%
GET_ITER	24,699,300	1.5%	84.9%
BINARY_OP_SUBTRACT_INT	23,494,320	1.4%	86.3%
POP_JUMP_IF_FALSE	22,828,920	1.4%	87.7%
BINARY_SLICE	21,465,840	1.3%	88.9%
COMPARE_OP_INT	18,244,020	1.1%	90.1%
CALL_BUILTIN_CLASS	14,769,540	0.9%	90.9%
RETURN_VALUE	9,931,080	0.6%	91.5%
POP_ITER	9,930,720	0.6%	92.1%
CALL_PY_EXACT_ARGS	9,930,720	0.6%	92.7%
RETURN_GENERATOR	9,930,600	0.6%	93.3%
LOAD_CONST_MORTAL	9,930,600	0.6%	93.9%
BUILD_TUPLE	9,930,480	0.6%	94.5%
MAKE_FUNCTION	9,930,420	0.6%	95.1%
COPY_FREE_VARS	9,930,420	0.6%	95.7%
SET_FUNCTION_ATTRIBUTE	9,930,420	0.6%	96.3%
UNARY_NEGATIVE	9,676,560	0.6%	96.9%
BINARY_OP	8,315,780	0.5%	97.4%
STORE_SLICE	8,313,720	0.5%	97.9%
CALL_LEN	5,092,080	0.3%	98.2%
BINARY_SUBSCR	4,839,620	0.3%	98.5%
STORE_SUBSCR	4,839,460	0.3%	98.8%
STORE_DEREF	4,838,580	0.3%	99.1%
CALL_TUPLE_1	4,838,520	0.3%	99.4%
FOR_ITER_GEN	4,838,520	0.3%	99.7%
TO_BOOL_INT	4,838,400	0.3%	100.0%
POP_JUMP_IF_TRUE	253,620	0.0%	100.0%
JUMP_FORWARD	11,100	0.0%	100.0%
PUSH_NULL	540	0.0%	100.0%
LOAD_GLOBAL_MODULE	480	0.0%	100.0%
CALL_NON_PY_GENERAL	420	0.0%	100.0%
MAKE_CELL	300	0.0%	100.0%
LOAD_ATTR	280	0.0%	100.0%
CALL	260	0.0%	100.0%
LOAD_ATTR_INSTANCE_VALUE	240	0.0%	100.0%
POP_JUMP_IF_NOT_NONE	180	0.0%	100.0%
CALL_PY_GENERAL	180	0.0%	100.0%
LOAD_ATTR_MODULE	180	0.0%	100.0%
END_FOR	120	0.0%	100.0%
LOAD_ATTR_METHOD_NO_DICT	120	0.0%	100.0%
LOAD_ATTR_METHOD_WITH_VALUES	120	0.0%	100.0%
TO_BOOL	100	0.0%	100.0%
LOAD_GLOBAL	100	0.0%	100.0%
CALL_FUNCTION_EX	60	0.0%	100.0%
NOP	60	0.0%	100.0%
FOR_ITER	60	0.0%	100.0%
IS_OP	60	0.0%	100.0%
STORE_FAST_STORE_FAST	60	0.0%	100.0%
BINARY_OP_SUBTRACT_FLOAT	60	0.0%	100.0%
CALL_METHOD_DESCRIPTOR_NOARGS	60	0.0%	100.0%
CALL_METHOD_DESCRIPTOR_O	60	0.0%	100.0%
TO_BOOL_BOOL	60	0.0%	100.0%
UNPACK_SEQUENCE_TWO_TUPLE	60	0.0%	100.0%
COMPARE_OP	20	0.0%	100.0%
UNPACK_SEQUENCE	20	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_TOP JUMP_BACKWARD_NO_JIT	88,877,220	5.4%	5.4%
RESUME_CHECK POP_TOP	84,292,320	5.1%	10.5%
CACHE RESUME_CHECK	79,454,100	4.8%	15.2%
YIELD_VALUE INTERPRETER_EXIT	79,453,920	4.8%	20.0%
STORE_FAST LOAD_DEREF	79,442,940	4.8%	24.8%
LOAD_DEREF LOAD_FAST	79,442,880	4.8%	29.6%
LOAD_FAST BINARY_SUBSCR_TUPLE_INT	79,442,880	4.8%	34.4%
FOR_ITER_RANGE STORE_FAST	53,887,800	3.3%	37.7%
JUMP_BACKWARD_NO_JIT FOR_ITER_RANGE	49,049,520	3.0%	40.6%
BINARY_SUBSCR_TUPLE_INT LOAD_FAST	40,735,680	2.5%	43.1%
LOAD_FAST BINARY_OP_ADD_INT	38,707,200	2.3%	45.4%
BINARY_OP_ADD_INT YIELD_VALUE	38,707,200	2.3%	47.8%
BINARY_SUBSCR_TUPLE_INT YIELD_VALUE	38,707,200	2.3%	50.1%
FOR_ITER_LIST STORE_FAST	38,707,200	2.3%	52.4%
JUMP_BACKWARD_NO_JIT FOR_ITER_LIST	38,707,200	2.3%	54.8%
BINARY_SUBSCR_LIST_INT LOAD_SMALL_INT	26,304,000	1.6%	56.4%
LOAD_FAST_LOAD_FAST BINARY_SUBSCR_LIST_INT	22,828,560	1.4%	57.7%
COMPARE_OP_INT POP_JUMP_IF_FALSE	17,990,460	1.1%	58.8%
STORE_FAST LOAD_FAST_LOAD_FAST	17,990,280	1.1%	59.9%
STORE_SUBSCR_LIST_INT LOAD_FAST_LOAD_FAST	17,990,280	1.1%	61.0%
LOAD_SMALL_INT BINARY_OP_ADD_INT	16,627,680	1.0%	62.0%
LOAD_FAST GET_ITER	15,022,380	0.9%	62.9%
LOAD_GLOBAL_BUILTIN LOAD_FAST	14,769,180	0.9%	63.8%
LOAD_SMALL_INT COMPARE_OP_INT	13,152,040	0.8%	64.6%
COPY COPY	13,152,000	0.8%	65.4%
COPY BINARY_SUBSCR_LIST_INT	13,152,000	0.8%	66.2%
LOAD_FAST_LOAD_FAST COPY	13,152,000	0.8%	67.0%
LOAD_FAST_LOAD_FAST STORE_SUBSCR_LIST_INT	13,152,000	0.8%	67.8%
LOAD_SMALL_INT BINARY_OP_SUBTRACT_INT	13,152,000	0.8%	68.6%
POP_JUMP_IF_FALSE LOAD_FAST_LOAD_FAST	13,152,000	0.8%	69.4%
SWAP SWAP	13,152,000	0.8%	70.2%
SWAP STORE_SUBSCR_LIST_INT	13,152,000	0.8%	70.9%
BINARY_OP_SUBTRACT_INT SWAP	13,152,000	0.8%	71.7%
LOAD_CONST_IMMORTAL RETURN_VALUE	9,930,900	0.6%	72.3%
POP_ITER LOAD_CONST_IMMORTAL	9,930,600	0.6%	72.9%
POP_TOP RESUME_CHECK	9,930,600	0.6%	73.5%
RETURN_VALUE INTERPRETER_EXIT	9,930,600	0.6%	74.1%
LOAD_GLOBAL_BUILTIN LOAD_GLOBAL_BUILTIN	9,930,600	0.6%	74.7%
RESUME_CHECK LOAD_FAST	9,930,540	0.6%	75.3%
CACHE POP_TOP	9,930,480	0.6%	75.9%
GET_ITER FOR_ITER_RANGE	9,930,420	0.6%	76.5%
MAKE_FUNCTION SET_FUNCTION_ATTRIBUTE	9,930,420	0.6%	77.1%
BUILD_TUPLE LOAD_CONST_MORTAL	9,930,420	0.6%	77.7%
LOAD_FAST BUILD_TUPLE	9,930,420	0.6%	78.3%
CALL_PY_EXACT_ARGS COPY_FREE_VARS	9,930,420	0.6%	78.9%
LOAD_CONST_MORTAL MAKE_FUNCTION	9,930,420	0.6%	79.5%
GET_ITER CALL_PY_EXACT_ARGS	9,930,360	0.6%	80.1%
COPY_FREE_VARS RETURN_GENERATOR	9,930,360	0.6%	80.7%
SET_FUNCTION_ATTRIBUTE LOAD_FAST	9,930,360	0.6%	81.3%
LOAD_FAST_LOAD_FAST UNARY_NEGATIVE	9,676,560	0.6%	81.9%
LOAD_FAST LOAD_SMALL_INT	8,313,960	0.5%	82.4%
LOAD_FAST_LOAD_FAST BINARY_OP_SUBTRACT_INT	8,313,840	0.5%	82.9%
BINARY_SLICE BINARY_OP	8,313,720	0.5%	83.4%
BINARY_SLICE LOAD_FAST_LOAD_FAST	8,313,720	0.5%	83.9%
STORE_SLICE LOAD_FAST_LOAD_FAST	8,313,720	0.5%	84.4%
BINARY_OP LOAD_FAST_LOAD_FAST	8,313,720	0.5%	84.9%
LOAD_FAST_LOAD_FAST LOAD_FAST	8,313,720	0.5%	85.4%
LOAD_FAST_LOAD_FAST LOAD_SMALL_INT	8,313,720	0.5%	85.9%
LOAD_FAST_LOAD_FAST LOAD_CONST_IMMORTAL	8,313,720	0.5%	86.4%
BINARY_OP_ADD_INT BINARY_SLICE	8,313,720	0.5%	86.9%
BINARY_OP_ADD_INT LOAD_CONST_IMMORTAL	8,313,720	0.5%	87.4%
BINARY_OP_SUBTRACT_INT LOAD_FAST_LOAD_FAST	8,313,720	0.5%	87.9%
LOAD_CONST_IMMORTAL BINARY_SLICE	8,313,720	0.5%	88.4%
LOAD_CONST_IMMORTAL STORE_SLICE	8,313,720	0.5%	88.9%
STORE_SUBSCR_LIST_INT JUMP_BACKWARD_NO_JIT	8,313,720	0.5%	89.4%
FOR_ITER_RANGE POP_ITER	5,092,140	0.3%	89.7%
RETURN_GENERATOR CALL_BUILTIN_CLASS	5,092,080	0.3%	90.1%
POP_JUMP_IF_FALSE LOAD_GLOBAL_BUILTIN	5,092,000	0.3%	90.4%
CALL_BUILTIN_CLASS CALL_LEN	5,091,960	0.3%	90.7%
LOAD_FAST CALL_BUILTIN_CLASS	4,838,680	0.3%	91.0%
CALL_BUILTIN_CLASS CALL_BUILTIN_CLASS	4,838,640	0.3%	91.3%
LOAD_FAST LOAD_CONST_IMMORTAL	4,838,520	0.3%	91.5%
STORE_DEREF LOAD_FAST	4,838,460	0.3%	91.8%
BINARY_SLICE GET_ITER	4,838,400	0.3%	92.1%
GET_ITER FOR_ITER_LIST	4,838,400	0.3%	92.4%
RETURN_GENERATOR CALL_TUPLE_1	4,838,400	0.3%	92.7%
COPY COMPARE_OP_INT	4,838,400	0.3%	93.0%
LOAD_FAST BINARY_SLICE	4,838,400	0.3%	93.3%
LOAD_FAST LOAD_GLOBAL_BUILTIN	4,838,400	0.3%	93.6%
LOAD_FAST TO_BOOL_INT	4,838,400	0.3%	93.9%
SWAP COPY	4,838,400	0.3%	94.2%
YIELD_VALUE STORE_DEREF	4,838,400	0.3%	94.5%
CALL_BUILTIN_CLASS GET_ITER	4,838,400	0.3%	94.8%
CALL_LEN SWAP	4,838,400	0.3%	95.0%
CALL_TUPLE_1 YIELD_VALUE	4,838,400	0.3%	95.3%
FOR_ITER_GEN RESUME_CHECK	4,838,400	0.3%	95.6%
FOR_ITER_LIST POP_ITER	4,838,400	0.3%	95.9%
JUMP_BACKWARD_NO_JIT FOR_ITER_GEN	4,838,400	0.3%	96.2%
LOAD_CONST_IMMORTAL LOAD_FAST	4,838,400	0.3%	96.5%
TO_BOOL_INT POP_JUMP_IF_FALSE	4,838,400	0.3%	96.8%
BINARY_SUBSCR LOAD_FAST_LOAD_FAST	4,838,280	0.3%	97.1%
POP_TOP POP_TOP	4,838,280	0.3%	97.4%
STORE_SUBSCR LOAD_GLOBAL_BUILTIN	4,838,280	0.3%	97.7%
UNARY_NEGATIVE BINARY_SUBSCR	4,838,280	0.3%	98.0%
UNARY_NEGATIVE STORE_SUBSCR	4,838,280	0.3%	98.3%
SWAP LOAD_FAST_LOAD_FAST	4,838,280	0.3%	98.6%
BINARY_SUBSCR_LIST_INT STORE_FAST	4,838,280	0.3%	98.8%
BINARY_SUBSCR_LIST_INT SWAP	4,838,280	0.3%	99.1%
JUMP_BACKWARD_NO_JIT LOAD_FAST	4,838,280	0.3%	99.4%
POP_JUMP_IF_FALSE POP_TOP	4,584,840	0.3%	99.7%

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
BINARY_OP_ADD_INT	8,313,720	38.7%
LOAD_CONST_IMMORTAL	8,313,720	38.7%
LOAD_FAST	4,838,400	22.5%

Successors	Count	Percentage
BINARY_OP	8,313,720	38.7%
LOAD_FAST_LOAD_FAST	8,313,720	38.7%
GET_ITER	4,838,400	22.5%

STORE_SLICE

Successors and predecessors for STORE_SLICE

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	8,313,720	100.0%

Successors	Count	Percentage
LOAD_FAST_LOAD_FAST	8,313,720	100.0%

CACHE

Successors and predecessors for CACHE

Successors	Count	Percentage
RESUME_CHECK	79,454,100	88.9%
POP_TOP	9,930,480	11.1%

BINARY_SUBSCR

Successors and predecessors for BINARY_SUBSCR

Predecessors	Count	Percentage
UNARY_NEGATIVE	4,838,280	100.0%
BINARY_SUBSCR	1,200	0.0%
LOAD_CONST_MORTAL	120	0.0%
LOAD_SMALL_INT	20	0.0%

Successors	Count	Percentage
LOAD_FAST_LOAD_FAST	4,838,280	100.0%
BINARY_SUBSCR	1,200	0.0%
STORE_FAST	120	0.0%
BINARY_SUBSCR_TUPLE_INT	20	0.0%

CALL_FUNCTION_EX

Successors and predecessors for CALL_FUNCTION_EX

Predecessors	Count	Percentage
PUSH_NULL	60	100.0%

END_FOR

Successors and predecessors for END_FOR

Predecessors	Count	Percentage
RETURN_VALUE	120	100.0%

Successors	Count	Percentage
POP_ITER	120	100.0%

GET_ITER

Successors and predecessors for GET_ITER

Predecessors	Count	Percentage
LOAD_FAST	15,022,380	60.8%
BINARY_SLICE	4,838,400	19.6%
CALL_BUILTIN_CLASS	4,838,400	19.6%
RETURN_GENERATOR	120	0.0%

Successors	Count	Percentage
FOR_ITER_RANGE	9,930,420	40.2%
CALL_PY_EXACT_ARGS	9,930,360	40.2%
FOR_ITER_LIST	4,838,400	19.6%
FOR_ITER_GEN	120	0.0%

INTERPRETER_EXIT

Successors and predecessors for INTERPRETER_EXIT

Predecessors	Count	Percentage
YIELD_VALUE	79,453,920	88.9%
RETURN_VALUE	9,930,600	11.1%

MAKE_FUNCTION

Successors and predecessors for MAKE_FUNCTION

Predecessors	Count	Percentage
LOAD_CONST_MORTAL	9,930,420	100.0%

Successors	Count	Percentage
SET_FUNCTION_ATTRIBUTE	9,930,420	100.0%

NOP

Successors and predecessors for NOP

Predecessors	Count	Percentage
POP_JUMP_IF_TRUE	60	100.0%

Successors	Count	Percentage
LOAD_FAST	60	100.0%

POP_ITER

Successors and predecessors for POP_ITER

Predecessors	Count	Percentage
FOR_ITER_RANGE	5,092,140	51.3%
FOR_ITER_LIST	4,838,400	48.7%
END_FOR	120	0.0%
FOR_ITER	60	0.0%

Successors	Count	Percentage
LOAD_CONST_IMMORTAL	9,930,600	100.0%
LOAD_FAST	120	0.0%

POP_TOP

Successors and predecessors for POP_TOP

Predecessors	Count	Percentage
RESUME_CHECK	84,292,320	81.3%
CACHE	9,930,480	9.6%
POP_TOP	4,838,280	4.7%
POP_JUMP_IF_FALSE	4,584,840	4.4%
RETURN_VALUE	180	0.0%

Successors	Count	Percentage
JUMP_BACKWARD_NO_JIT	88,877,220	85.8%
RESUME_CHECK	9,930,600	9.6%
POP_TOP	4,838,280	4.7%
LOAD_CONST_IMMORTAL	300	0.0%
LOAD_FAST	180	0.0%

PUSH_NULL

Successors and predecessors for PUSH_NULL

Predecessors	Count	Percentage
LOAD_FAST	420	77.8%
LOAD_ATTR_MODULE	120	22.2%

Successors	Count	Percentage
CALL_NON_PY_GENERAL	280	51.9%
CALL	80	14.8%
CALL_FUNCTION_EX	60	11.1%
LOAD_FAST	60	11.1%
LOAD_FAST_LOAD_FAST	60	11.1%

RETURN_GENERATOR

Successors and predecessors for RETURN_GENERATOR

Predecessors	Count	Percentage
COPY_FREE_VARS	9,930,360	100.0%
MAKE_CELL	240	0.0%

Successors	Count	Percentage
CALL_BUILTIN_CLASS	5,092,080	51.3%
CALL_TUPLE_1	4,838,400	48.7%
GET_ITER	120	0.0%

RETURN_VALUE

Successors and predecessors for RETURN_VALUE

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	9,930,900	100.0%
LOAD_FAST	120	0.0%
CALL_NON_PY_GENERAL	60	0.0%

Successors	Count	Percentage
INTERPRETER_EXIT	9,930,600	100.0%
POP_TOP	180	0.0%
STORE_FAST	180	0.0%
END_FOR	120	0.0%

STORE_SUBSCR

Successors and predecessors for STORE_SUBSCR

Predecessors	Count	Percentage
UNARY_NEGATIVE	4,838,280	100.0%
STORE_SUBSCR	1,180	0.0%

Successors	Count	Percentage
LOAD_GLOBAL_BUILTIN	4,838,280	100.0%
STORE_SUBSCR	1,180	0.0%

TO_BOOL

Successors and predecessors for TO_BOOL

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	60	60.0%
TO_BOOL	20	20.0%
LOAD_FAST	20	20.0%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	60	60.0%
TO_BOOL	20	20.0%
TO_BOOL_BOOL	20	20.0%

UNARY_NEGATIVE

Successors and predecessors for UNARY_NEGATIVE

Predecessors	Count	Percentage
LOAD_FAST_LOAD_FAST	9,676,560	100.0%

Successors	Count	Percentage
BINARY_SUBSCR	4,838,280	50.0%
STORE_SUBSCR	4,838,280	50.0%

BINARY_OP

Successors and predecessors for BINARY_OP

Predecessors	Count	Percentage
BINARY_SLICE	8,313,720	100.0%
BINARY_OP	2,040	0.0%
LOAD_FAST	20	0.0%

Successors	Count	Percentage
LOAD_FAST_LOAD_FAST	8,313,720	100.0%
BINARY_OP	2,040	0.0%
BINARY_OP_SUBTRACT_FLOAT	20	0.0%

BUILD_TUPLE

Successors and predecessors for BUILD_TUPLE

Predecessors	Count	Percentage
LOAD_FAST	9,930,420	100.0%
LOAD_FAST_LOAD_FAST	60	0.0%

Successors	Count	Percentage
LOAD_CONST_MORTAL	9,930,420	100.0%
CALL_METHOD_DESCRIPTOR_O	40	0.0%
CALL	20	0.0%

CALL

Successors and predecessors for CALL

Predecessors	Count	Percentage
PUSH_NULL	80	30.8%
LOAD_FAST_LOAD_FAST	60	23.1%
LOAD_CONST_IMMORTAL	40	15.4%
BUILD_TUPLE	20	7.7%
LOAD_FAST	20	7.7%

Successors	Count	Percentage
CALL_NON_PY_GENERAL	100	38.5%
CALL_PY_EXACT_ARGS	80	30.8%
CALL_BUILTIN_CLASS	20	7.7%
CALL_METHOD_DESCRIPTOR_NOARGS	20	7.7%
CALL_METHOD_DESCRIPTOR_O	20	7.7%

COMPARE_OP

Successors and predecessors for COMPARE_OP

Predecessors	Count	Percentage
LOAD_SMALL_INT	20	100.0%

Successors	Count	Percentage
COMPARE_OP_INT	20	100.0%

COPY

Successors and predecessors for COPY

Predecessors	Count	Percentage
COPY	13,152,000	42.2%
LOAD_FAST_LOAD_FAST	13,152,000	42.2%
SWAP	4,838,400	15.5%

Successors	Count	Percentage
COPY	13,152,000	42.2%
BINARY_SUBSCR_LIST_INT	13,152,000	42.2%
COMPARE_OP_INT	4,838,400	15.5%

COPY_FREE_VARS

Successors and predecessors for COPY_FREE_VARS

Predecessors	Count	Percentage
CALL_PY_EXACT_ARGS	9,930,420	100.0%

Successors	Count	Percentage
RETURN_GENERATOR	9,930,360	100.0%
RESUME_CHECK	60	0.0%

FOR_ITER

Successors and predecessors for FOR_ITER

Predecessors	Count	Percentage
JUMP_BACKWARD_NO_JIT	60	100.0%

Successors	Count	Percentage
POP_ITER	60	100.0%

IS_OP

Successors and predecessors for IS_OP

Predecessors	Count	Percentage
LOAD_CONST_IMMORTAL	60	100.0%

Successors	Count	Percentage
STORE_FAST	60	100.0%

JUMP_FORWARD

Successors and predecessors for JUMP_FORWARD

Predecessors	Count	Percentage
POP_JUMP_IF_TRUE	11,040	99.5%
STORE_FAST	60	0.5%

Successors	Count	Percentage
LOAD_DEREF	11,040	99.5%
LOAD_FAST	60	0.5%

LOAD_ATTR

Successors and predecessors for LOAD_ATTR

Predecessors	Count	Percentage
LOAD_FAST	140	50.0%
LOAD_GLOBAL_MODULE	60	21.4%
LOAD_ATTR_INSTANCE_VALUE	40	14.3%
LOAD_ATTR	20	7.1%
LOAD_FAST_LOAD_FAST	20	7.1%

Successors	Count	Percentage
LOAD_FAST_LOAD_FAST	60	21.4%
LOAD_ATTR_INSTANCE_VALUE	60	21.4%
LOAD_ATTR_MODULE	60	21.4%
LOAD_ATTR_METHOD_NO_DICT	40	14.3%
LOAD_ATTR_METHOD_WITH_VALUES	40	14.3%

LOAD_DEREF

Successors and predecessors for LOAD_DEREF

Predecessors	Count	Percentage
STORE_FAST	79,442,940	100.0%
JUMP_FORWARD	11,040	0.0%
LOAD_GLOBAL_BUILTIN	120	0.0%

Successors	Count	Percentage
LOAD_FAST	79,442,880	100.0%
YIELD_VALUE	11,040	0.0%
CALL_LEN	120	0.0%
STORE_FAST	60	0.0%

LOAD_FAST

Successors and predecessors for LOAD_FAST

Predecessors	Count	Percentage
LOAD_DEREF	79,442,880	44.7%
BINARY_SUBSCR_TUPLE_INT	40,735,680	22.9%
LOAD_GLOBAL_BUILTIN	14,769,180	8.3%
RESUME_CHECK	9,930,540	5.6%
SET_FUNCTION_ATTRIBUTE	9,930,360	5.6%

Successors	Count	Percentage
BINARY_SUBSCR_TUPLE_INT	79,442,880	44.7%
BINARY_OP_ADD_INT	38,707,200	21.8%
GET_ITER	15,022,380	8.5%
BUILD_TUPLE	9,930,420	5.6%
LOAD_SMALL_INT	8,313,960	4.7%

LOAD_FAST_LOAD_FAST

Successors and predecessors for LOAD_FAST_LOAD_FAST

Predecessors	Count	Percentage
STORE_FAST	17,990,280	19.5%
STORE_SUBSCR_LIST_INT	17,990,280	19.5%
POP_JUMP_IF_FALSE	13,152,000	14.3%
BINARY_SLICE	8,313,720	9.0%
STORE_SLICE	8,313,720	9.0%

Successors	Count	Percentage
BINARY_SUBSCR_LIST_INT	22,828,560	24.8%
COPY	13,152,000	14.3%
STORE_SUBSCR_LIST_INT	13,152,000	14.3%
UNARY_NEGATIVE	9,676,560	10.5%
BINARY_OP_SUBTRACT_INT	8,313,840	9.0%

LOAD_GLOBAL

Successors and predecessors for LOAD_GLOBAL

Predecessors	Count	Percentage
RESUME_CHECK	60	60.0%
POP_JUMP_IF_FALSE	20	20.0%
STORE_FAST	20	20.0%

Successors	Count	Percentage
LOAD_GLOBAL_MODULE	80	80.0%
LOAD_GLOBAL_BUILTIN	20	20.0%

LOAD_SMALL_INT

Successors and predecessors for LOAD_SMALL_INT

Predecessors	Count	Percentage
BINARY_SUBSCR_LIST_INT	26,304,000	61.3%
LOAD_FAST	8,313,960	19.4%
LOAD_FAST_LOAD_FAST	8,313,720	19.4%
BINARY_OP_SUBTRACT_INT	120	0.0%

Successors	Count	Percentage
BINARY_OP_ADD_INT	16,627,680	38.7%
COMPARE_OP_INT	13,152,040	30.6%
BINARY_OP_SUBTRACT_INT	13,152,000	30.6%
BINARY_SUBSCR_TUPLE_INT	40	0.0%
BINARY_SUBSCR	20	0.0%

MAKE_CELL

Successors and predecessors for MAKE_CELL

Predecessors	Count	Percentage
CALL_PY_GENERAL	180	60.0%
CALL_PY_EXACT_ARGS	120	40.0%

Successors	Count	Percentage
RETURN_GENERATOR	240	80.0%
RESUME_CHECK	60	20.0%

POP_JUMP_IF_FALSE

Successors and predecessors for POP_JUMP_IF_FALSE

Predecessors	Count	Percentage
COMPARE_OP_INT	17,990,460	78.8%
TO_BOOL_INT	4,838,400	21.2%
TO_BOOL	60	0.0%

Successors	Count	Percentage
LOAD_FAST_LOAD_FAST	13,152,000	57.6%
LOAD_GLOBAL_BUILTIN	5,092,000	22.3%
POP_TOP	4,584,840	20.1%
LOAD_FAST	60	0.0%
LOAD_GLOBAL	20	0.0%

POP_JUMP_IF_NOT_NONE

Successors and predecessors for POP_JUMP_IF_NOT_NONE

Predecessors	Count	Percentage
LOAD_FAST	180	100.0%

Successors	Count	Percentage
LOAD_FAST	120	66.7%
LOAD_CONST_MORTAL	60	33.3%

POP_JUMP_IF_TRUE

Successors and predecessors for POP_JUMP_IF_TRUE

Predecessors	Count	Percentage
COMPARE_OP_INT	253,560	100.0%
TO_BOOL_BOOL	60	0.0%

Successors	Count	Percentage
JUMP_BACKWARD_NO_JIT	242,520	95.6%
JUMP_FORWARD	11,040	4.4%
NOP	60	0.0%

SET_FUNCTION_ATTRIBUTE

Successors and predecessors for SET_FUNCTION_ATTRIBUTE

Predecessors	Count	Percentage
MAKE_FUNCTION	9,930,420	100.0%

Successors	Count	Percentage
LOAD_FAST	9,930,360	100.0%
STORE_FAST	60	0.0%

STORE_DEREF

Successors and predecessors for STORE_DEREF

Predecessors	Count	Percentage
YIELD_VALUE	4,838,400	100.0%
CALL_TUPLE_1	120	0.0%
CALL_NON_PY_GENERAL	60	0.0%

Successors	Count	Percentage
LOAD_FAST	4,838,460	100.0%
LOAD_GLOBAL_BUILTIN	120	0.0%

STORE_FAST

Successors and predecessors for STORE_FAST

Predecessors	Count	Percentage
FOR_ITER_RANGE	53,887,800	55.3%
FOR_ITER_LIST	38,707,200	39.7%
BINARY_SUBSCR_LIST_INT	4,838,280	5.0%
CALL_BUILTIN_CLASS	300	0.0%
RETURN_VALUE	180	0.0%

Successors	Count	Percentage
LOAD_DEREF	79,442,940	81.5%
LOAD_FAST_LOAD_FAST	17,990,280	18.5%
LOAD_FAST	720	0.0%
LOAD_GLOBAL_BUILTIN	360	0.0%
LOAD_CONST_IMMORTAL	180	0.0%

STORE_FAST_STORE_FAST

Successors and predecessors for STORE_FAST_STORE_FAST

Predecessors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	60	100.0%

Successors	Count	Percentage
LOAD_FAST	60	100.0%

SWAP

Successors and predecessors for SWAP

Predecessors	Count	Percentage
SWAP	13,152,000	36.6%
BINARY_OP_SUBTRACT_INT	13,152,000	36.6%
CALL_LEN	4,838,400	13.4%
BINARY_SUBSCR_LIST_INT	4,838,280	13.4%

Successors	Count	Percentage
SWAP	13,152,000	36.6%
STORE_SUBSCR_LIST_INT	13,152,000	36.6%
COPY	4,838,400	13.4%
LOAD_FAST_LOAD_FAST	4,838,280	13.4%

UNPACK_SEQUENCE

Successors and predecessors for UNPACK_SEQUENCE

Predecessors	Count	Percentage
CALL_METHOD_DESCRIPTOR_NOARGS	20	100.0%

Successors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	20	100.0%

YIELD_VALUE

Successors and predecessors for YIELD_VALUE

Predecessors	Count	Percentage
BINARY_OP_ADD_INT	38,707,200	45.9%
BINARY_SUBSCR_TUPLE_INT	38,707,200	45.9%
CALL_TUPLE_1	4,838,400	5.7%
BINARY_OP_SUBTRACT_INT	2,028,480	2.4%
LOAD_DEREF	11,040	0.0%

Successors	Count	Percentage
INTERPRETER_EXIT	79,453,920	94.3%
STORE_DEREF	4,838,400	5.7%

BINARY_OP_ADD_INT

Successors and predecessors for BINARY_OP_ADD_INT

Predecessors	Count	Percentage
LOAD_FAST	38,707,200	70.0%
LOAD_SMALL_INT	16,627,680	30.0%

Successors	Count	Percentage
YIELD_VALUE	38,707,200	70.0%
BINARY_SLICE	8,313,720	15.0%
LOAD_CONST_IMMORTAL	8,313,720	15.0%
LOAD_FAST	120	0.0%
CALL_BUILTIN_CLASS	120	0.0%

BINARY_OP_SUBTRACT_FLOAT

Successors and predecessors for BINARY_OP_SUBTRACT_FLOAT

Predecessors	Count	Percentage
LOAD_FAST	40	66.7%
BINARY_OP	20	33.3%

Successors	Count	Percentage
STORE_FAST	60	100.0%

BINARY_OP_SUBTRACT_INT

Successors and predecessors for BINARY_OP_SUBTRACT_INT

Predecessors	Count	Percentage
LOAD_SMALL_INT	13,152,000	56.0%
LOAD_FAST_LOAD_FAST	8,313,840	35.4%
LOAD_FAST	2,028,480	8.6%

Successors	Count	Percentage
SWAP	13,152,000	56.0%
LOAD_FAST_LOAD_FAST	8,313,720	35.4%
YIELD_VALUE	2,028,480	8.6%
LOAD_SMALL_INT	120	0.0%

BINARY_SUBSCR_LIST_INT

Successors and predecessors for BINARY_SUBSCR_LIST_INT

Predecessors	Count	Percentage
LOAD_FAST_LOAD_FAST	22,828,560	63.4%
COPY	13,152,000	36.6%

Successors	Count	Percentage
LOAD_SMALL_INT	26,304,000	73.1%
STORE_FAST	4,838,280	13.4%
SWAP	4,838,280	13.4%

BINARY_SUBSCR_TUPLE_INT

Successors and predecessors for BINARY_SUBSCR_TUPLE_INT

Predecessors	Count	Percentage
LOAD_FAST	79,442,880	100.0%
LOAD_SMALL_INT	40	0.0%
BINARY_SUBSCR	20	0.0%

Successors	Count	Percentage
LOAD_FAST	40,735,680	51.3%
YIELD_VALUE	38,707,200	48.7%
STORE_FAST	60	0.0%

CALL_BUILTIN_CLASS

Successors and predecessors for CALL_BUILTIN_CLASS

Predecessors	Count	Percentage
RETURN_GENERATOR	5,092,080	34.5%
LOAD_FAST	4,838,680	32.8%
CALL_BUILTIN_CLASS	4,838,640	32.8%
BINARY_OP_ADD_INT	120	0.0%
CALL	20	0.0%

Successors	Count	Percentage
CALL_LEN	5,091,960	34.5%
CALL_BUILTIN_CLASS	4,838,640	32.8%
GET_ITER	4,838,400	32.8%
STORE_FAST	300	0.0%
POP_TOP	120	0.0%

CALL_LEN

Successors and predecessors for CALL_LEN

Predecessors	Count	Percentage
CALL_BUILTIN_CLASS	5,091,960	100.0%
LOAD_DEREF	120	0.0%

Successors	Count	Percentage
SWAP	4,838,400	95.0%
COMPARE_OP_INT	253,560	5.0%
STORE_FAST	120	0.0%

CALL_METHOD_DESCRIPTOR_NOARGS

Successors and predecessors for CALL_METHOD_DESCRIPTOR_NOARGS

Predecessors	Count	Percentage
LOAD_ATTR_METHOD_NO_DICT	40	66.7%
CALL	20	33.3%

Successors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	40	66.7%
UNPACK_SEQUENCE	20	33.3%

CALL_METHOD_DESCRIPTOR_O

Successors and predecessors for CALL_METHOD_DESCRIPTOR_O

Predecessors	Count	Percentage
BUILD_TUPLE	40	66.7%
CALL	20	33.3%

Successors	Count	Percentage
POP_TOP	60	100.0%

CALL_NON_PY_GENERAL

Successors and predecessors for CALL_NON_PY_GENERAL

Predecessors	Count	Percentage
PUSH_NULL	280	66.7%
CALL	100	23.8%
LOAD_FAST_LOAD_FAST	40	9.5%

Successors	Count	Percentage
POP_TOP	180	42.9%
RETURN_VALUE	60	14.3%
LOAD_FAST	60	14.3%
STORE_DEREF	60	14.3%
STORE_FAST	60	14.3%

CALL_PY_EXACT_ARGS

Successors and predecessors for CALL_PY_EXACT_ARGS

Predecessors	Count	Percentage
GET_ITER	9,930,360	100.0%
LOAD_FAST	120	0.0%
CALL	80	0.0%
LOAD_FAST_LOAD_FAST	80	0.0%
LOAD_ATTR_INSTANCE_VALUE	40	0.0%

Successors	Count	Percentage
COPY_FREE_VARS	9,930,420	100.0%
RESUME_CHECK	180	0.0%
MAKE_CELL	120	0.0%

CALL_PY_GENERAL

Successors and predecessors for CALL_PY_GENERAL

Predecessors	Count	Percentage
LOAD_FAST	120	66.7%
LOAD_CONST_IMMORTAL	40	22.2%
CALL	20	11.1%

Successors	Count	Percentage
MAKE_CELL	180	100.0%

CALL_TUPLE_1

Successors and predecessors for CALL_TUPLE_1

Predecessors	Count	Percentage
RETURN_GENERATOR	4,838,400	100.0%
LOAD_FAST	120	0.0%

Successors	Count	Percentage
YIELD_VALUE	4,838,400	100.0%
STORE_DEREF	120	0.0%

COMPARE_OP_INT

Successors and predecessors for COMPARE_OP_INT

Predecessors	Count	Percentage
LOAD_SMALL_INT	13,152,040	72.1%
COPY	4,838,400	26.5%
CALL_LEN	253,560	1.4%
COMPARE_OP	20	0.0%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	17,990,460	98.6%
POP_JUMP_IF_TRUE	253,560	1.4%

FOR_ITER_GEN

Successors and predecessors for FOR_ITER_GEN

Predecessors	Count	Percentage
JUMP_BACKWARD_NO_JIT	4,838,400	100.0%
GET_ITER	120	0.0%

Successors	Count	Percentage
RESUME_CHECK	4,838,400	100.0%
POP_TOP	120	0.0%

FOR_ITER_LIST

Successors and predecessors for FOR_ITER_LIST

Predecessors	Count	Percentage
JUMP_BACKWARD_NO_JIT	38,707,200	88.9%
GET_ITER	4,838,400	11.1%

Successors	Count	Percentage
STORE_FAST	38,707,200	88.9%
POP_ITER	4,838,400	11.1%

FOR_ITER_RANGE

Successors and predecessors for FOR_ITER_RANGE

Predecessors	Count	Percentage
JUMP_BACKWARD_NO_JIT	49,049,520	83.2%
GET_ITER	9,930,420	16.8%

Successors	Count	Percentage
STORE_FAST	53,887,800	91.4%
POP_ITER	5,092,140	8.6%

JUMP_BACKWARD_NO_JIT

Successors and predecessors for JUMP_BACKWARD_NO_JIT

Predecessors	Count	Percentage
POP_TOP	88,877,220	91.2%
STORE_SUBSCR_LIST_INT	8,313,720	8.5%
POP_JUMP_IF_TRUE	242,520	0.2%

Successors	Count	Percentage
FOR_ITER_RANGE	49,049,520	50.3%
FOR_ITER_LIST	38,707,200	39.7%
FOR_ITER_GEN	4,838,400	5.0%
LOAD_FAST	4,838,280	5.0%
FOR_ITER	60	0.0%

LOAD_ATTR_INSTANCE_VALUE

Successors and predecessors for LOAD_ATTR_INSTANCE_VALUE

Predecessors	Count	Percentage
LOAD_FAST	140	58.3%
LOAD_ATTR	60	25.0%
LOAD_FAST_LOAD_FAST	40	16.7%

Successors	Count	Percentage
LOAD_ATTR_METHOD_NO_DICT	80	33.3%
TO_BOOL	60	25.0%
LOAD_ATTR	40	16.7%
CALL_PY_EXACT_ARGS	40	16.7%
CALL	20	8.3%

LOAD_ATTR_METHOD_NO_DICT

Successors and predecessors for LOAD_ATTR_METHOD_NO_DICT

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	80	66.7%
LOAD_ATTR	40	33.3%

Successors	Count	Percentage
LOAD_FAST_LOAD_FAST	60	50.0%
CALL_METHOD_DESCRIPTOR_NOARGS	40	33.3%
CALL	20	16.7%

LOAD_ATTR_METHOD_WITH_VALUES

Successors and predecessors for LOAD_ATTR_METHOD_WITH_VALUES

Predecessors	Count	Percentage
LOAD_FAST	80	66.7%
LOAD_ATTR	40	33.3%

Successors	Count	Percentage
LOAD_FAST	60	50.0%
LOAD_FAST_LOAD_FAST	60	50.0%

LOAD_ATTR_MODULE

Successors and predecessors for LOAD_ATTR_MODULE

Predecessors	Count	Percentage
LOAD_GLOBAL_MODULE	120	66.7%
LOAD_ATTR	60	33.3%

Successors	Count	Percentage
PUSH_NULL	120	66.7%
STORE_FAST	60	33.3%

LOAD_CONST_IMMORTAL

Successors and predecessors for LOAD_CONST_IMMORTAL

Predecessors	Count	Percentage
POP_ITER	9,930,600	31.6%
LOAD_FAST_LOAD_FAST	8,313,720	26.5%
BINARY_OP_ADD_INT	8,313,720	26.5%
LOAD_FAST	4,838,520	15.4%
POP_TOP	300	0.0%

Successors	Count	Percentage
RETURN_VALUE	9,930,900	31.6%
BINARY_SLICE	8,313,720	26.5%
STORE_SLICE	8,313,720	26.5%
LOAD_FAST	4,838,400	15.4%
STORE_FAST	120	0.0%

LOAD_CONST_MORTAL

Successors and predecessors for LOAD_CONST_MORTAL

Predecessors	Count	Percentage
BUILD_TUPLE	9,930,420	100.0%
CALL_BUILTIN_CLASS	120	0.0%
POP_JUMP_IF_NOT_NONE	60	0.0%

Successors	Count	Percentage
MAKE_FUNCTION	9,930,420	100.0%
BINARY_SUBSCR	120	0.0%
STORE_FAST	60	0.0%

LOAD_GLOBAL_BUILTIN

Successors and predecessors for LOAD_GLOBAL_BUILTIN

Predecessors	Count	Percentage
LOAD_GLOBAL_BUILTIN	9,930,600	40.2%
POP_JUMP_IF_FALSE	5,092,000	20.6%
LOAD_FAST	4,838,400	19.6%
STORE_SUBSCR	4,838,280	19.6%
STORE_FAST	360	0.0%

Successors	Count	Percentage
LOAD_FAST	14,769,180	59.8%
LOAD_GLOBAL_BUILTIN	9,930,600	40.2%
LOAD_DEREF	120	0.0%
LOAD_FAST_LOAD_FAST	120	0.0%
LOAD_GLOBAL_MODULE	120	0.0%

LOAD_GLOBAL_MODULE

Successors and predecessors for LOAD_GLOBAL_MODULE

Predecessors	Count	Percentage
STORE_FAST	160	33.3%
LOAD_GLOBAL_BUILTIN	120	25.0%
RESUME_CHECK	120	25.0%
LOAD_GLOBAL	80	16.7%

Successors	Count	Percentage
LOAD_FAST	240	50.0%
LOAD_ATTR_MODULE	120	25.0%
LOAD_ATTR	60	12.5%
LOAD_FAST_LOAD_FAST	60	12.5%

RESUME_CHECK

Successors and predecessors for RESUME_CHECK

Predecessors	Count	Percentage
CACHE	79,454,100	84.3%
POP_TOP	9,930,600	10.5%
FOR_ITER_GEN	4,838,400	5.1%
CALL_PY_EXACT_ARGS	180	0.0%
COPY_FREE_VARS	60	0.0%

Successors	Count	Percentage
POP_TOP	84,292,320	89.5%
LOAD_FAST	9,930,540	10.5%
LOAD_GLOBAL_BUILTIN	360	0.0%
LOAD_GLOBAL_MODULE	120	0.0%
LOAD_GLOBAL	60	0.0%

STORE_SUBSCR_LIST_INT

Successors and predecessors for STORE_SUBSCR_LIST_INT

Predecessors	Count	Percentage
LOAD_FAST_LOAD_FAST	13,152,000	50.0%
SWAP	13,152,000	50.0%

Successors	Count	Percentage
LOAD_FAST_LOAD_FAST	17,990,280	68.4%
JUMP_BACKWARD_NO_JIT	8,313,720	31.6%

TO_BOOL_BOOL

Successors and predecessors for TO_BOOL_BOOL

Predecessors	Count	Percentage
LOAD_FAST	40	66.7%
TO_BOOL	20	33.3%

Successors	Count	Percentage
POP_JUMP_IF_TRUE	60	100.0%

TO_BOOL_INT

Successors and predecessors for TO_BOOL_INT

Predecessors	Count	Percentage
LOAD_FAST	4,838,400	100.0%

Successors	Count	Percentage
POP_JUMP_IF_FALSE	4,838,400	100.0%

UNPACK_SEQUENCE_TWO_TUPLE

Successors and predecessors for UNPACK_SEQUENCE_TWO_TUPLE

Predecessors	Count	Percentage
CALL_METHOD_DESCRIPTOR_NOARGS	40	66.7%
UNPACK_SEQUENCE	20	33.3%

Successors	Count	Percentage
STORE_FAST_STORE_FAST	60	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.	8,313,720	9.5%
hit ⓘ Specialized instructions that complete.	78,829,260	90.5%

Success	Count	Ratio
Success	20	1.0%
Failure	2,040	99.0%

Failure kind	Count	Ratio
add other	2,040	100.0%

BINARY_SLICE

specialization stats for BINARY_SLICE family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	21,465,840	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.	4,838,400	4.0%
hit ⓘ Specialized instructions that complete.	115,423,500	96.0%

Success	Count	Ratio
Success	20	1.6%
Failure	1,200	98.4%

Failure kind	Count	Ratio
out of range	1,180	98.3%
list slice	20	1.7%

CALL

specialization stats for CALL family

Kind	Count	Ratio
hit ⓘ Specialized instructions that complete.	34,630,980	100.0%

Success	Count	Ratio
Success	260	100.0%
Failure	0	0.0%

COMPARE_OP

specialization stats for COMPARE_OP family

Kind	Count	Ratio
hit ⓘ Specialized instructions that complete.	18,244,020	100.0%

Success	Count	Ratio
Success	20	100.0%
Failure	0	0.0%

FOR_ITER

specialization stats for FOR_ITER family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	60	0.0%
hit ⓘ Specialized instructions that complete.	107,364,060	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.	60	6.4%
hit ⓘ Specialized instructions that complete.	660	70.2%

Success	Count	Ratio
Success	200	90.9%
Failure	20	9.1%

LOAD_GLOBAL

specialization stats for LOAD_GLOBAL family

Kind	Count	Ratio
hit ⓘ Specialized instructions that complete.	24,700,620	100.0%

Success	Count	Ratio
Success	100	100.0%
Failure	0	0.0%

STORE_SLICE

specialization stats for STORE_SLICE family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	8,313,720	100.0%

STORE_SUBSCR

specialization stats for STORE_SUBSCR family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	4,838,280	15.5%
hit ⓘ Specialized instructions that complete.	26,304,000	84.5%

Success	Count	Ratio
Success	0	0.0%
Failure	1,180	100.0%

Failure kind	Count	Ratio
out of range	1,180	100.0%

TO_BOOL

specialization stats for TO_BOOL family

Kind	Count	Ratio
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	60	0.0%
hit ⓘ Specialized instructions that complete.	4,838,460	100.0%

Success	Count	Ratio
Success	20	50.0%
Failure	20	50.0%

Failure kind	Count	Ratio
sequence	20	100.0%

UNPACK_SEQUENCE

specialization stats for UNPACK_SEQUENCE family

Kind	Count	Ratio
hit ⓘ Specialized instructions that complete.	60	75.0%

Success	Count	Ratio
Success	20	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.	965,794,560	58.3%
Not specialized ⓘ Instructions that could be specialized but aren't, e.g. LOAD_ATTR, BINARY_SLICE.	47,775,260	2.9%
Specialized hits ⓘ Specialized instructions, e.g. LOAD_ATTR_MODULE that complete.	643,320,840	38.8%
Specialized misses ⓘ Specialized instructions, e.g. LOAD_ATTR_MODULE that deopt.	0	0.0%

Deferred by instruction

Breakdown of deferred (not specialized) instruction counts by family

Name	Count	Ratio
BINARY_SLICE	21,465,840	44.9%
STORE_SLICE	8,313,720	17.4%
BINARY_OP	8,313,720	17.4%
BINARY_SUBSCR	4,838,400	10.1%
STORE_SUBSCR	4,838,280	10.1%
TO_BOOL	60	0.0%
FOR_ITER	60	0.0%
LOAD_ATTR	60	0.0%
CACHE	0	0.0%
CALL_FUNCTION_EX	0	0.0%

Misses by instruction

Breakdown of misses (specialized deopts) instruction counts by family

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	89,384,580	85.8%
Calls to Python functions inlined	14,769,420	14.2%
Calls via PyEval_EvalFrame (total)	89,384,580	85.8%
Calls via PyEval_EvalFrame (vector)	180	0.0%
Calls via PyEval_EvalFrame (generator)	89,384,400	85.8%
Calls via PyEval_EvalFrame (legacy)	0	0.0%
Calls via PyEval_EvalFrame (function vectorcall)	180	0.0%
Calls via PyEval_EvalFrame (build class)	0	0.0%
Calls via PyEval_EvalFrame (slot)	0	0.0%
Calls via PyEval_EvalFrame (function ex)	0	0.0%
Calls via PyEval_EvalFrame (api)	0	0.0%
Calls via PyEval_EvalFrame (method)	0	0.0%
Frame objects created	0	0.0%
Frames pushed	9,931,080	9.5%

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	84,055,820	51.5%
Frees to freelist	84,056,080
Allocations	79,082,200	48.5%
Allocations to 512 bytes	74,341,840	45.6%
Allocations to 4 kbytes	4,740,360	2.9%
Allocations over 4 kbytes	0	0.0%
Frees	79,081,742
Inline values	0
Interpreter mortal increfs	250,965,240	21.2%
Interpreter mortal decrefs	369,592,600	24.1%
Mortal increfs	105,545,466	8.9%
Mortal decrefs	115,535,288	7.5%
Interpreter immortal increfs	539,269,980	45.6%
Interpreter immortal decrefs	626,917,680	40.9%
Immortal increfs	286,046,886	24.2%
Immortal decrefs	419,074,464	27.4%
Materialize dict (on request)	0
Materialize dict (new key)	0
Materialize dict (too big)	0
Materialize dict (str subclass)	0
Method cache hits	194
Method cache misses	26
Method cache collisions	16
Method cache dunder hits	4,838,520
Method cache dunder misses	0

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

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

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Stats gathered on: 2025-02-02