bm-20241025-azure-x86_64-brandtbucher-justin_no_externs-3.14.0a1+-5791853-pystats-crypto_pyaes-vs-base.md

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	Base Count	Head Count	Change
LOAD_CONST	7,624,080	7,624,080	0.0%
LOAD_FAST	5,903,940	5,903,940	0.0%
BINARY_OP	2,780,800	2,780,800	0.0%
BINARY_SUBSCR_LIST_INT	2,775,360	2,775,360	0.0%
LOAD_ATTR_INSTANCE_VALUE	2,079,360	2,079,360	0.0%
STORE_FAST	1,740,240	1,740,240	0.0%
SWAP	1,729,680	1,729,680	0.0%
LOAD_GLOBAL_MODULE	1,039,680	1,039,680	0.0%
GET_ITER	1,038,780	1,038,780	0.0%
LOAD_GLOBAL_BUILTIN	1,038,060	1,038,060	0.0%
RESUME_CHECK	1,037,580	1,037,580	0.0%
BUILD_LIST	1,037,340	1,037,340	0.0%
RETURN_VALUE	1,037,160	1,037,160	0.0%
CALL_LEN	1,037,040	1,037,040	0.0%
CALL_PY_EXACT_ARGS	1,036,680	1,036,680	0.0%
ENTER_EXECUTOR	704,040	704,040	0.0%
BINARY_OP_ADD_INT	696,240	696,240	0.0%
POP_TOP	695,820	695,820	0.0%
COMPARE_OP_INT	695,760	695,760	0.0%
BINARY_OP_SUBTRACT_INT	693,360	693,360	0.0%
FOR_ITER_RANGE	692,340	692,340	0.0%
CALL_BUILTIN_CLASS	692,220	692,220	0.0%
POP_JUMP_IF_FALSE	691,560	691,560	0.0%
COPY	691,440	691,440	0.0%
BINARY_OP_MULTIPLY_INT	690,480	690,480	0.0%
LIST_EXTEND	690,300	690,300	0.0%
STORE_SUBSCR_LIST_INT	352,320	352,320	0.0%
STORE_ATTR_INSTANCE_VALUE	346,800	346,800	0.0%
LOAD_FAST_AND_CLEAR	346,560	346,560	0.0%
LIST_APPEND	346,320	346,320	0.0%
RETURN_CONST	346,260	346,260	0.0%
LOAD_ATTR_METHOD_WITH_VALUES	345,840	345,840	0.0%
BINARY_SLICE	345,600	345,600	0.0%
STORE_FAST_STORE_FAST	345,420	345,420	0.0%
UNPACK_SEQUENCE_LIST	345,120	345,120	0.0%
LOAD_FAST_LOAD_FAST	15,180	15,180	0.0%
POP_JUMP_IF_TRUE	4,860	4,860	0.0%
JUMP_FORWARD	2,460	2,460	0.0%
LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES	2,400	2,400	0.0%
PUSH_NULL	900	900	0.0%
JUMP_BACKWARD	780	780	0.0%
CALL_NON_PY_GENERAL	780	780	0.0%
EXIT_INIT_CHECK	720	720	0.0%
CALL_ALLOC_AND_ENTER_INIT	720	720	0.0%
LOAD_ATTR_MODULE	720	720	0.0%
FOR_ITER	320	320	0.0%
EXTENDED_ARG	300	300	0.0%
LOAD_ATTR	300	300	0.0%
POP_JUMP_IF_NOT_NONE	300	300	0.0%
BINARY_SUBSCR_TUPLE_INT	300	300	0.0%
TO_BOOL_BOOL	300	300	0.0%
UNPACK_SEQUENCE_TWO_TUPLE	300	300	0.0%
CONTAINS_OP	280	280	0.0%
CALL	260	260	0.0%
STORE_FAST_LOAD_FAST	240	240	0.0%
BINARY_SUBSCR_DICT	240	240	0.0%
CALL_BUILTIN_FAST	240	240	0.0%
CALL_ISINSTANCE	240	240	0.0%
LOAD_ATTR_CLASS	240	240	0.0%
LOAD_ATTR_PROPERTY	240	240	0.0%
LOAD_GLOBAL	140	140	0.0%
BUILD_TUPLE	120	120	0.0%
CALL_FUNCTION_EX	120	120	0.0%
LOAD_DEREF	120	120	0.0%
LOAD_ATTR_METHOD_NO_DICT	120	120	0.0%
TO_BOOL	100	100	0.0%
COMPARE_OP	80	80	0.0%
MAKE_FUNCTION	60	60	0.0%
NOP	60	60	0.0%
CALL_INTRINSIC_1	60	60	0.0%
COPY_FREE_VARS	60	60	0.0%
IS_OP	60	60	0.0%
LOAD_FAST_CHECK	60	60	0.0%
MAKE_CELL	60	60	0.0%
SET_FUNCTION_ATTRIBUTE	60	60	0.0%
STORE_DEREF	60	60	0.0%
BINARY_OP_SUBTRACT_FLOAT	60	60	0.0%
CALL_METHOD_DESCRIPTOR_NOARGS	60	60	0.0%
CALL_METHOD_DESCRIPTOR_O	60	60	0.0%
CALL_PY_GENERAL	60	60	0.0%
BINARY_SUBSCR	20	20	0.0%
UNPACK_SEQUENCE	20	20	0.0%

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.

Not included in comparative output.

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.

Not included in comparative output.

Specialization stats

Specialization stats by family

BINARY_OP

specialization stats for BINARY_OP family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	2,779,440	5.6%	2,779,440	5.6%	0.0%
hit ⓘ Specialized instructions that complete.	46,636,140	94.4%	46,636,140	94.4%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	20	1.5%	20	1.5%	0.0%
Failure	1,340	98.5%	1,340	98.5%	0.0%

Failure kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
lshift	320	23.9%	320	23.9%	0.0%
or	240	17.9%	240	17.9%	0.0%
xor	200	14.9%	200	14.9%	0.0%
floor divide	160	11.9%	160	11.9%	0.0%
remainder	140	10.4%	140	10.4%	0.0%
add other	80	6.0%	80	6.0%	0.0%
and int	80	6.0%	80	6.0%	0.0%
rshift	80	6.0%	80	6.0%	0.0%
multiply different types	40	3.0%	40	3.0%	0.0%

BINARY_SLICE

specialization stats for BINARY_SLICE family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	345,600	100.0%	345,600	100.0%	0.0%

BINARY_SUBSCR

specialization stats for BINARY_SUBSCR family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
hit ⓘ Specialized instructions that complete.	147,158,700	100.0%	147,158,700	100.0%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	20	100.0%	20	100.0%	0.0%
Failure	0	0.0%	0	0.0%

CALL

specialization stats for CALL family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
hit ⓘ Specialized instructions that complete.	26,240,220	100.0%	26,240,220	100.0%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	260	100.0%	260	100.0%	0.0%
Failure	0	0.0%	0	0.0%

COMPARE_OP

specialization stats for COMPARE_OP family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	60	0.0%	60	0.0%	0.0%
hit ⓘ Specialized instructions that complete.	1,063,440	100.0%	1,063,440	100.0%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	0	0.0%	0	0.0%
Failure	20	100.0%	20	100.0%	0.0%

Failure kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
bytes	20	100.0%	20	100.0%	0.0%

CONTAINS_OP

specialization stats for CONTAINS_OP family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	240	85.7%	240	85.7%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	0	0.0%	0	0.0%
Failure	40	100.0%	40	100.0%	0.0%

Failure kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
tuple	40	100.0%	40	100.0%	0.0%

FOR_ITER

specialization stats for FOR_ITER family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	300	0.0%	300	0.0%	0.0%
hit ⓘ Specialized instructions that complete.	692,340	100.0%	692,340	100.0%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	0	0.0%	0	0.0%
Failure	20	100.0%	20	100.0%	0.0%

Failure kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
zip	20	100.0%	20	100.0%	0.0%

LOAD_ATTR

specialization stats for LOAD_ATTR family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	60	0.0%	60	0.0%	0.0%
hit ⓘ Specialized instructions that complete.	83,610,360	100.0%	83,610,360	100.0%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	220	91.7%	220	91.7%	0.0%
Failure	20	8.3%	20	8.3%	0.0%

LOAD_GLOBAL

specialization stats for LOAD_GLOBAL family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
hit ⓘ Specialized instructions that complete.	2,077,740	100.0%	2,077,740	100.0%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	140	100.0%	140	100.0%	0.0%
Failure	0	0.0%	0	0.0%

STORE_ATTR

specialization stats for STORE_ATTR family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
hit ⓘ Specialized instructions that complete.	346,800	100.0%	346,800	100.0%	0.0%

STORE_SUBSCR

specialization stats for STORE_SUBSCR family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
hit ⓘ Specialized instructions that complete.	12,811,200	100.0%	12,811,200	100.0%	0.0%

TO_BOOL

specialization stats for TO_BOOL family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
deferred ⓘ Lists the number of "deferred" (i.e. not specialized) instructions executed.	60	15.0%	60	15.0%	0.0%
hit ⓘ Specialized instructions that complete.	300	75.0%	300	75.0%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	20	50.0%	20	50.0%	0.0%
Failure	20	50.0%	20	50.0%	0.0%

Failure kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
sequence	20	100.0%	20	100.0%	0.0%

UNPACK_SEQUENCE

specialization stats for UNPACK_SEQUENCE family

Kind	Base Count	Base Ratio	Head Count	Head Ratio	Change
hit ⓘ Specialized instructions that complete.	5,865,180	100.0%	5,865,180	100.0%	0.0%

Success	Base Count	Base Ratio	Head Count	Head Ratio	Change
Success	20	100.0%	20	100.0%	0.0%
Failure	0	0.0%	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	Base Count	Base Ratio	Head Count	Head Ratio	Change
Basic ⓘ Instructions that are not and cannot be specialized, e.g. LOAD_FAST.	24,995,580	57.2%	24,995,580	57.2%	0.0%
Not specialized ⓘ Instructions that could be specialized but aren't, e.g. LOAD_ATTR, BINARY_SLICE.	3,127,920	7.2%	3,127,920	7.2%	0.0%
Specialized hits ⓘ Specialized instructions, e.g. LOAD_ATTR_MODULE that complete.	15,601,320	35.7%	15,601,320	35.7%	0.0%
Specialized misses ⓘ Specialized instructions, e.g. LOAD_ATTR_MODULE that deopt.	0	0.0%	0	0.0%

Deferred by instruction

Breakdown of deferred (not specialized) instruction counts by family

Name	Base Count	Base Ratio	Head Count	Head Ratio	Change
BINARY_OP	2,779,440	88.9%	2,779,440	88.9%	0.0%
BINARY_SLICE	345,600	11.1%	345,600	11.1%	0.0%
FOR_ITER	300	0.0%	300	0.0%	0.0%
CONTAINS_OP	240	0.0%	240	0.0%	0.0%
TO_BOOL	60	0.0%	60	0.0%	0.0%
COMPARE_OP	60	0.0%	60	0.0%	0.0%
LOAD_ATTR	60	0.0%	60	0.0%	0.0%
STORE_SLICE	0	0.0%	0	0.0%
CACHE	0	0.0%	0	0.0%
BINARY_SUBSCR	0	0.0%	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.

	Base Count	Base Ratio	Head Count	Head Ratio	Change
Calls to PyEval_EvalDefault	60	0.0%	60	0.0%	0.0%
Calls to Python functions inlined	5,524,080	100.0%	5,524,080	100.0%	0.0%
Calls via PyEval_EvalFrame (total)	60	0.0%	60	0.0%	0.0%
Calls via PyEval_EvalFrame (vector)	60	0.0%	60	0.0%	0.0%
Calls via PyEval_EvalFrame (generator)	0	0.0%	0	0.0%
Calls via PyEval_EvalFrame (legacy)	0	0.0%	0	0.0%
Calls via PyEval_EvalFrame (function vectorcall)	60	0.0%	60	0.0%	0.0%
Calls via PyEval_EvalFrame (build class)	0	0.0%	0	0.0%
Calls via PyEval_EvalFrame (slot)	0	0.0%	0	0.0%
Calls via PyEval_EvalFrame (function ex)	60	0.0%	60	0.0%	0.0%
Calls via PyEval_EvalFrame (api)	0	0.0%	0	0.0%
Calls via PyEval_EvalFrame (method)	0	0.0%	0	0.0%
Frame objects created	0	0.0%	0	0.0%
Frames pushed	5,524,860	100.0%	5,524,860	100.0%	0.0%

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.

	Base Count	Base Ratio	Head Count	Head Ratio	Change
Method cache collisions	19		21		10.5%
Method cache misses	27		26		-3.7%
Method cache hits	193		194		0.5%
Frees	146,458,180		146,458,183		0.0%
Immortal decrefs	599,733,866	46.0%	599,733,858	46.0%	-0.0%
Mortal decrefs	648,400,968	49.7%	648,400,974	49.7%	0.0%
Immortal increfs	376,721,507	40.7%	376,721,506	40.7%	-0.0%
Mortal increfs	523,346,547	56.6%	523,346,546	56.6%	-0.0%
Allocations from freelist	7,263,620	4.7%	7,263,620	4.7%	0.0%
Frees to freelist	7,263,560		7,263,560		0.0%
Allocations	145,766,660	95.3%	145,766,660	95.3%	0.0%
Allocations to 512 bytes	145,765,820	95.3%	145,765,820	95.3%	0.0%
Allocations to 4 kbytes	600	0.0%	600	0.0%	0.0%
Allocations over 4 kbytes	240	0.0%	240	0.0%	0.0%
Inline values	720		720		0.0%
Interpreter mortal increfs	11,466,120	1.2%	11,466,120	1.2%	0.0%
Interpreter mortal decrefs	34,253,920	2.6%	34,253,920	2.6%	0.0%
Interpreter immortal increfs	13,193,640	1.4%	13,193,640	1.4%	0.0%
Interpreter immortal decrefs	21,850,860	1.7%	21,850,860	1.7%	0.0%
Materialize dict (on request)	0	0.0%	0	0.0%
Materialize dict (new key)	0	0.0%	0	0.0%
Materialize dict (too big)	0	0.0%	0	0.0%
Materialize dict (str subclass)	0	0.0%	0	0.0%
Method cache dunder hits	240		240		0.0%
Method cache dunder misses	0		0

GC stats

GC collections and effectiveness

Collected/visits gives some measure of efficiency.

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

Optimization (Tier 2) stats

statistics about the Tier 2 optimizer

	Base Count	Base Ratio	Head Count	Head Ratio	Change
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.	780		780		0.0%
Traces created ⓘ The number of traces that were successfully created.	600	76.9%	600	76.9%	0.0%
Trace stack overflow ⓘ A trace is truncated because it would require more than 5 stack frames.	0	0.0%	0	0.0%
Trace stack underflow ⓘ A potential trace is abandoned because it pops more frames than it pushes.	180	23.1%	180	23.1%	0.0%
Trace too long ⓘ A trace is truncated because it is longer than the instruction buffer.	0	0.0%	0	0.0%
Trace too short ⓘ A potential trace is abandoced because it it too short.	180	23.1%	180	23.1%	0.0%
Inner loop found ⓘ A trace is truncated because it has an inner loop	0	0.0%	0	0.0%
Recursive call ⓘ A trace is truncated because it has a recursive call.	0	0.0%	0	0.0%
Low confidence ⓘ A trace is abandoned because the likelihood of the jump to top being taken is too low.	0	0.0%	0	0.0%
Executors invalidated ⓘ The number of executors that were invalidated due to watched dictionary changes.	0	0.0%	0	0.0%
Traces executed ⓘ The number of traces that were executed	11,748,240		11,748,240		0.0%
Uops executed ⓘ The total number of uops (micro-operations) that were executed	2,028,475,920	17,266.2%	2,028,475,920	17,266.2%	0.0%

	Base Count	Base Ratio	Head Count	Head Ratio	Change
Optimizer attempts ⓘ The number of times the trace optimizer (_Py_uop_analyze_and_optimize) was run.	600		600		0.0%
Optimizer successes ⓘ The number of traces that were successfully optimized.	600	100.0%	600	100.0%	0.0%
Optimizer no memory ⓘ The number of optimizations that failed due to no memory.	0	0.0%	0	0.0%
Remove globals builtins changed ⓘ The builtins changed during optimization	0	0.0%	0	0.0%
Remove globals incorrect keys ⓘ The keys in the globals dictionary aren't what was expected	0	0.0%	0	0.0%

Trace length histogram

trace length histogram

Range	Base Count	Base Ratio	Head Count	Head Ratio	Change
<= 1	0	0.0%	0	0.0%
<= 2	0	0.0%	0	0.0%
<= 4	0	0.0%	0	0.0%
<= 8	0	0.0%	0	0.0%
<= 16	0	0.0%	0	0.0%
<= 32	180	30.0%	180	30.0%	0.0%
<= 64	120	20.0%	120	20.0%	0.0%
<= 128	180	30.0%	180	30.0%	0.0%
<= 256	120	20.0%	120	20.0%	0.0%

Optimized trace length histogram

optimized trace length histogram

Range	Base Count	Base Ratio	Head Count	Head Ratio	Change
<= 1	0	0.0%	0	0.0%
<= 2	0	0.0%	0	0.0%
<= 4	0	0.0%	0	0.0%
<= 8	0	0.0%	0	0.0%
<= 16	0	0.0%	0	0.0%
<= 32	300	50.0%	300	50.0%	0.0%
<= 64	120	20.0%	120	20.0%	0.0%
<= 128	120	20.0%	120	20.0%	0.0%
<= 256	60	10.0%	60	10.0%	0.0%

Trace run length histogram

trace run length histogram

Range	Base Count	Base Ratio	Head Count	Head Ratio	Change
<= 1	0	0.0%	0	0.0%

Uop execution stats

uop execution stats

Name	Base Count	Head Count	Change
_SET_IP	252,140,880	252,140,880	0.0%
_CHECK_VALIDITY	247,654,320	247,654,320	0.0%
_BINARY_OP	215,867,040	215,867,040	0.0%
_LOAD_CONST_INLINE_BORROW	166,515,120	166,515,120	0.0%
_BINARY_SUBSCR_LIST_INT	144,382,080	144,382,080	0.0%
_LOAD_FAST_7	84,558,720	84,558,720	0.0%
_LOAD_FAST_0	82,217,280	82,217,280	0.0%
_LOAD_FAST	79,185,120	79,185,120	0.0%
_GUARD_DORV_VALUES_INST_ATTR_FROM_DICT	55,608,480	55,608,480	0.0%
_GUARD_KEYS_VERSION	55,608,480	55,608,480	0.0%
_LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES	55,263,600	55,263,600	0.0%
_BINARY_OP_ADD_INT	42,468,240	42,468,240	0.0%
_GUARD_TOS_INT	41,414,400	41,414,400	0.0%
_CHECK_PERIODIC	34,212,000	34,212,000	0.0%
_MAKE_WARM	28,685,280	28,685,280	0.0%
_GUARD_TYPE_VERSION	24,867,840	24,867,840	0.0%
_GUARD_NOT_EXHAUSTED_RANGE	22,122,000	22,122,000	0.0%
_ITER_CHECK_RANGE	22,122,000	22,122,000	0.0%
_LOAD_FAST_3	19,344,240	19,344,240	0.0%
_ITER_NEXT_RANGE	17,974,560	17,974,560	0.0%
_JUMP_TO_TOP	16,937,040	16,937,040	0.0%
_CHECK_MANAGED_OBJECT_HAS_VALUES	16,600,080	16,600,080	0.0%
_LOAD_ATTR_INSTANCE_VALUE_0	16,600,080	16,600,080	0.0%
_CHECK_VALIDITY_AND_SET_IP	16,577,280	16,577,280	0.0%
_LOAD_FAST_6	15,564,480	15,564,480	0.0%
_STORE_FAST_7	15,187,440	15,187,440	0.0%
_LOAD_FAST_5	13,820,880	13,820,880	0.0%
_LOAD_FAST_4	13,814,400	13,814,400	0.0%
_LOAD_FAST_2	13,469,040	13,469,040	0.0%
_STORE_SUBSCR_LIST_INT	12,458,880	12,458,880	0.0%
_START_EXECUTOR	11,748,240	11,748,240	0.0%
_EXIT_TRACE	11,403,360	11,403,360	0.0%
_CHECK_FUNCTION	11,048,640	11,048,640	0.0%
_STORE_FAST_2	8,629,440	8,629,440	0.0%
_LOAD_ATTR_METHOD_NO_DICT	8,628,000	8,628,000	0.0%
_STORE_FAST	8,318,160	8,318,160	0.0%
_LOAD_CONST_INLINE_BORROW_WITH_NULL	6,906,480	6,906,480	0.0%
_LIST_APPEND	6,564,240	6,564,240	0.0%
_LOAD_CONST_INLINE	6,213,600	6,213,600	0.0%
_PUSH_NULL	6,212,880	6,212,880	0.0%
_STORE_FAST_3	5,532,960	5,532,960	0.0%
_CALL_LIST_APPEND	5,521,920	5,521,920	0.0%
_FOR_ITER_TIER_TWO	5,520,000	5,520,000	0.0%
_UNPACK_SEQUENCE_TWO_TUPLE	5,519,760	5,519,760	0.0%
_LOAD_FAST_1	4,493,280	4,493,280	0.0%
_PUSH_FRAME	4,486,320	4,486,320	0.0%
_SAVE_RETURN_OFFSET	4,486,320	4,486,320	0.0%
_POP_TOP	4,142,640	4,142,640	0.0%
_RETURN_VALUE	4,141,440	4,141,440	0.0%
_RESUME_CHECK	4,141,440	4,141,440	0.0%
_CHECK_FUNCTION_EXACT_ARGS	4,141,440	4,141,440	0.0%
_CHECK_FUNCTION_VERSION	4,141,440	4,141,440	0.0%
_CHECK_STACK_SPACE_OPERAND	4,141,440	4,141,440	0.0%
_INIT_CALL_PY_EXACT_ARGS_1	4,141,440	4,141,440	0.0%
_GET_ITER	3,800,400	3,800,400	0.0%
_CALL_BUILTIN_CLASS	3,800,400	3,800,400	0.0%
_GUARD_IS_TRUE_POP	3,473,760	3,473,760	0.0%
_STORE_FAST_1	3,107,280	3,107,280	0.0%
_CALL_TYPE_1	3,106,080	3,106,080	0.0%
_CALL_METHOD_DESCRIPTOR_FAST	3,106,080	3,106,080	0.0%
_CALL_METHOD_DESCRIPTOR_NOARGS	3,106,080	3,106,080	0.0%
_TO_BOOL	3,106,080	3,106,080	0.0%
_BINARY_OP_MULTIPLY_INT	2,070,720	2,070,720	0.0%
_LOAD_CONST_INLINE_WITH_NULL	1,725,600	1,725,600	0.0%
_BINARY_SLICE	1,036,080	1,036,080	0.0%
_CALL_LEN	690,240	690,240	0.0%
_COMPARE_OP_INT	367,680	367,680	0.0%
_COPY	365,520	365,520	0.0%
_GUARD_BOTH_INT	364,320	364,320	0.0%
_BUILD_LIST	349,920	349,920	0.0%
_TIER2_RESUME_CHECK	345,120	345,120	0.0%
_DYNAMIC_EXIT	344,880	344,880	0.0%
_LOAD_ATTR_METHOD_WITH_VALUES	344,880	344,880	0.0%
_LOAD_ATTR_PROPERTY_FRAME	344,880	344,880	0.0%
_SWAP	20,640	20,640	0.0%
_BINARY_OP_SUBTRACT_INT	17,040	17,040	0.0%
_GUARD_NOS_INT	14,640	14,640	0.0%
_BINARY_SUBSCR_TUPLE_INT	720	720	0.0%
_CALL_BUILTIN_FAST	720	720	0.0%

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.

Not included in comparative output.

Unsupported opcodes

unsupported opcodes

Optimizer errored out with opcode

Optimization stopped after encountering this opcode

Rare events

Counts of rare/unlikely events

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

Meta stats

Meta statistics

	Base Count	Head Count	Change
Number of data files	20	20	0.0%

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Stats gathered on: 2024-10-26