OV - exec - Function qmcplusplus::TimerType<std::chrono::_V2::system

	Function: qmcplusplus::TimerType<std::chrono::_V2::system_clock>::start()	Module: exec	Source: :0-0	Coverage (incl. loops): 0.01% \| (excl. loops): 0.01%

  ***  This Panel is Intentionally Left Blank.  ***

It is due to a lack of debug symbols in the given object
(loop or function).

0x544ee0 PUSH	%R13

0x544ee2 PUSH	%R12

0x544ee4 PUSH	%RBP

0x544ee5 PUSH	%RBX

0x544ee6 SUB	$0x8,%RSP

0x544eea MOVZX	0x38(%RDI),%EBP

0x544eee TEST	%BPL,%BPL

0x544ef1 JNE	544f00

0x544ef3 ADD	$0x8,%RSP

0x544ef7 POP	%RBX

0x544ef8 POP	%RBP

0x544ef9 POP	%R12

0x544efb POP	%R13

0x544efd RET

0x544efe XCHG	%AX,%AX

0x544f00 MOV	%RDI,%R12

0x544f03 CALL	404770 <omp_get_level@plt>

0x544f08 MOV	%EAX,%EBX

0x544f0a TEST	%EAX,%EAX

0x544f0c JLE	545045

0x544f12 LEA	-0x1(%RAX),%R13D

0x544f16 AND	$0x7,%EAX

0x544f19 JE	544faf

0x544f1f CMP	$0x1,%EAX

0x544f22 JE	544f97

0x544f24 CMP	$0x2,%EAX

0x544f27 JE	544f85

0x544f29 CMP	$0x3,%EAX

0x544f2c JE	544f73

0x544f2e CMP	$0x4,%EAX

0x544f31 JE	544f62

0x544f33 CMP	$0x5,%EAX

0x544f36 JE	544f51

0x544f38 CMP	$0x6,%EAX

0x544f3b JNE	5450c0

0x544f41 MOV	%EBX,%EDI

0x544f43 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

0x544f48 TEST	%EAX,%EAX

0x544f4a SETE	%CL

0x544f4d DEC	%EBX

0x544f4f AND	%ECX,%EBP

0x544f51 MOV	%EBX,%EDI

0x544f53 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

0x544f58 TEST	%EAX,%EAX

0x544f5a SETE	%SIL

0x544f5e DEC	%EBX

0x544f60 AND	%ESI,%EBP

0x544f62 MOV	%EBX,%EDI

0x544f64 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

0x544f69 TEST	%EAX,%EAX

0x544f6b SETE	%DIL

0x544f6f DEC	%EBX

0x544f71 AND	%EDI,%EBP

0x544f73 MOV	%EBX,%EDI

0x544f75 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

0x544f7a TEST	%EAX,%EAX

0x544f7c SETE	%R8B

0x544f80 DEC	%EBX

0x544f82 AND	%R8D,%EBP

0x544f85 MOV	%EBX,%EDI

0x544f87 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

0x544f8c TEST	%EAX,%EAX

0x544f8e SETE	%R9B

0x544f92 DEC	%EBX

0x544f94 AND	%R9D,%EBP

0x544f97 MOV	%EBX,%EDI

0x544f99 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

0x544f9e TEST	%EAX,%EAX

0x544fa0 SETE	%R10B

0x544fa4 AND	%R10D,%EBP

0x544fa7 DEC	%EBX

0x544fa9 JE	54503c

(2116) 0x544faf MOV	%EBX,%EDI

(2116) 0x544fb1 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

(2116) 0x544fb6 LEA	-0x1(%RBX),%EDI

(2116) 0x544fb9 TEST	%EAX,%EAX

(2116) 0x544fbb SETE	%R13B

(2116) 0x544fbf CALL	4045e0 <omp_get_ancestor_thread_num@plt>

(2116) 0x544fc4 LEA	-0x2(%RBX),%EDI

(2116) 0x544fc7 AND	%EBP,%R13D

(2116) 0x544fca TEST	%EAX,%EAX

(2116) 0x544fcc SETE	%BPL

(2116) 0x544fd0 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

(2116) 0x544fd5 LEA	-0x3(%RBX),%EDI

(2116) 0x544fd8 AND	%EBP,%R13D

(2116) 0x544fdb TEST	%EAX,%EAX

(2116) 0x544fdd SETE	%R11B

(2116) 0x544fe1 AND	%R11D,%R13D

(2116) 0x544fe4 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

(2116) 0x544fe9 LEA	-0x4(%RBX),%EDI

(2116) 0x544fec TEST	%EAX,%EAX

(2116) 0x544fee SETE	%AL

(2116) 0x544ff1 AND	%EAX,%R13D

(2116) 0x544ff4 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

(2116) 0x544ff9 LEA	-0x5(%RBX),%EDI

(2116) 0x544ffc TEST	%EAX,%EAX

(2116) 0x544ffe SETE	%DL

(2116) 0x545001 AND	%EDX,%R13D

(2116) 0x545004 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

(2116) 0x545009 LEA	-0x6(%RBX),%EDI

(2116) 0x54500c TEST	%EAX,%EAX

(2116) 0x54500e SETE	%CL

(2116) 0x545011 AND	%ECX,%R13D

(2116) 0x545014 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

(2116) 0x545019 LEA	-0x7(%RBX),%EDI

(2116) 0x54501c TEST	%EAX,%EAX

(2116) 0x54501e SETE	%SIL

(2116) 0x545022 AND	%ESI,%R13D

(2116) 0x545025 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

(2116) 0x54502a TEST	%EAX,%EAX

(2116) 0x54502c SETE	%BPL

(2116) 0x545030 AND	%R13D,%EBP

(2116) 0x545033 SUB	$0x8,%EBX

(2116) 0x545036 JNE	544faf

0x54503c TEST	%BPL,%BPL

0x54503f JE	544ef3

0x545045 MOV	0x48(%R12),%RDI

0x54504a TEST	%RDI,%RDI

0x54504d JE	5450a4

0x54504f MOV	0x48(%RDI),%RBX

0x545053 MOVZX	0x40(%R12),%R8D

0x545059 CMP	%RBX,0x40(%RDI)

0x54505d JE	5450f0

0x545063 MOV	-0x8(%RBX),%R9

0x545067 TEST	%R9,%R9

0x54506a JE	5450f0

0x545070 VMOVDQU	0x50(%R9),%XMM0

0x545076 VMOVDQU	%XMM0,0x50(%R12)

0x54507d MOVSXD	0x60(%R9),%R10

0x545081 MOV	%R10D,0x60(%R12)

0x545086 MOV	%R10,%R13

0x545089 MOV	%R8B,0x50(%R12,%R10,1)

0x54508e CMP	$0xe,%R10D

0x545092 JG	5450e0

0x545094 INC	%R13D

0x545097 MOV	%R13D,0x60(%R12)

0x54509c MOV	%R12,%RSI

0x54509f CALL	54c110 <_ZN11qmcplusplus12TimerManagerINS_9TimerTypeINSt6chrono3_V212system_clockEEEE10push_timerEPS5_>

0x5450a4 CALL	404640 <_ZNSt6chrono3_V212system_clock3nowEv@plt>

0x5450a9 MOV	%RAX,(%R12)

0x5450ad ADD	$0x8,%RSP

0x5450b1 POP	%RBX

0x5450b2 POP	%RBP

0x5450b3 POP	%R12

0x5450b5 POP	%R13

0x5450b7 RET

0x5450b8 NOPL	(%RAX,%RAX,1)

0x5450c0 MOV	%EBX,%EDI

0x5450c2 MOV	%R13D,%EBX

0x5450c5 CALL	4045e0 <omp_get_ancestor_thread_num@plt>

0x5450ca TEST	%EAX,%EAX

0x5450cc SETE	%DL

0x5450cf AND	%EDX,%EBP

0x5450d1 JMP	544f41

0x5450d6 NOPW	%CS:(%RAX,%RAX,1)

0x5450e0 MOVB	$0x1,0xb8719(%RIP)

0x5450e7 JMP	54509c

0x5450e9 NOPL	(%RAX)

0x5450f0 MOVQ	$0,0x50(%R12)

0x5450f9 MOVQ	$0,0x58(%R12)

0x545102 MOV	%R8B,0x50(%R12)

0x545107 MOVL	$0x1,0x60(%R12)

0x545110 JMP	54509c

0x545112 NOPW	%CS:(%RAX,%RAX,1)

0x54511c NOPL	(%RAX)

Coverage (%)	Name	Source Location	Module
►14.68+	qmcplusplus::SoaDistanceTableA[...]		exec
○	qmcplusplus::ParticleSet::acce[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►11.90+	qmcplusplus::SoaDistanceTableA[...]		exec
○	qmcplusplus::ParticleSet::upda[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►11.49+	qmcplusplus::ParticleSet::upda[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►6.81+	qmcplusplus::WaveFunction::eva[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►6.56+	qmcplusplus::WaveFunction::eva[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►6.48+	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►3.53+	miniqmcreference::DiracDetermi[...]		exec
○	qmcplusplus::WaveFunction::eva[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►3.28+	qmcplusplus::WaveFunction::rat[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►3.04+	qmcplusplus::WaveFunction::acc[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►2.62+	qmcplusplus::ParticleSet::acce[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►2.46+	qmcplusplus::SoaDistanceTableA[...]		exec
○	qmcplusplus::ParticleSet::make[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►2.46+	miniqmcreference::DiracDetermi[...]		exec
○	qmcplusplus::WaveFunction::eva[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►2.13+	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.80+	qmcplusplus::SoaDistanceTableA[...]		exec
○	qmcplusplus::ParticleSet::acce[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.72+	qmcplusplus::SoaDistanceTableA[...]		exec
○	qmcplusplus::ParticleSet::upda[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.64+	miniqmcreference::einspline_sp[...]		exec
○	miniqmcreference::DiracDetermi[...]		exec
○	qmcplusplus::WaveFunction::eva[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.64+	miniqmcreference::einspline_sp[...]		exec
○	miniqmcreference::DiracDetermi[...]		exec
○	qmcplusplus::WaveFunction::rat[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.48+	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.48+	miniqmcreference::DiracDetermi[...]		exec
○	qmcplusplus::WaveFunction::rat[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.39+	qmcplusplus::SoaDistanceTableA[...]		exec
○	qmcplusplus::ParticleSet::make[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.31+	miniqmcreference::DiracDetermi[...]		exec
○	qmcplusplus::WaveFunction::eva[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.23+	qmcplusplus::ParticleSet::make[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.23+	miniqmcreference::DiracDetermi[...]		exec
○	qmcplusplus::WaveFunction::rat[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6
►1.07+	miniqmcreference::einspline_sp[...]		exec
○	miniqmcreference::DiracDetermi[...]		exec
○	qmcplusplus::WaveFunction::eva[...]		exec
○	main._omp_fn.1		exec
○	gomp_thread_start	team.c:130	libgomp.so.1.0.0
○	start_thread		libc.so.6
○	__GI___clone3		libc.so.6

min	med	avg	max

Percentile Index	10	20	30	40	50	60	70	80	90	100
Value

min	med	avg	max

Percentile Index	10	20	30	40	50	60	70	80	90	100
Value

Path /

Average path: Display a virtual path defined by average values of all real paths

The code analyzed by CQA in that panel excludes loops and represents 0.01% of application time for run gcc_0

Source file and lines
Module	exec

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Code clean check

Detected a slowdown caused by scalar integer instructions (typically used for address computation). By removing them, you can lower the cost of an iteration from 15.88 to 5.00 cycles (3.18x speedup).

Workaround

Try to reorganize arrays of structures to structures of arrays
Consider to permute loops (see vectorization gain report)

Vectorization

Your function is not vectorized. Only 8% of vector register length is used (average across all SSE/AVX instructions). By fully vectorizing your function, you can lower the cost of an iteration from 15.88 to 0.57 cycles (27.82x speedup).

Details

4% of SSE/AVX instructions are used in vector version (process two or more data elements in vector registers):

25% of SSE/AVX loads are used in vector version.
12% of SSE/AVX stores are used in vector version.
0% of SSE/AVX addition or subtraction instructions are used in vector version.
0% of SSE/AVX instructions that are not load, store, addition, subtraction nor multiply instructions are used in vector version.

Since your execution units are vector units, only a fully vectorized function can use their full power.

Workaround

Try another compiler or update/tune your current one
Make array accesses unit-stride:
- If your function streams arrays of structures (AoS), try to use structures of arrays instead (SoA)

Execution units bottlenecks

Found no such bottlenecks but see expert reports for more complex bottlenecks.

No data for this section

CALL instructions

Detected function call instructions.

Details

Calling (and then returning from) a function prevents many compiler optimizations (like vectorization), breaks control flow (which reduces pipeline performance) and executes extra instructions to save/restore the registers used inside it, which is very expensive (dozens of cycles). Consider to inline small functions.

omp_get_ancestor_thread_num@plt: 7 occurrences►
omp_get_level@plt: 1 occurrences►
qmcplusplus::TimerManager
>::push_timer(qmcplusplus::TimerType
*): 1 occurrences►
std::chrono::_V2::system_clock::now(): 1 occurrences►

Conversion instructions

Detected expensive conversion instructions.

Details

MOVZX: 2 occurrences►

Workaround

Avoid mixing data with different types. In particular, check if the type of constants is the same as array elements.

Type of elements and instruction set

No instructions are processing arithmetic or math operations on FP elements. This function is probably writing/copying data or processing integer elements.

Matching between your function (in the source code) and the binary function

The binary function does not contain any FP arithmetical operations. The binary function is loading 54 bytes. The binary function is storing 55 bytes.

General properties

nb instructions	123
nb uops	127
loop length	435
used x86 registers	13
used mmx registers	0
used xmm registers	1
used ymm registers	0
used zmm registers	0
nb stack references	0

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	15.88 cycles
front end	15.88 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15
uops	13.17	13.17	13.17	13.17	13.17	13.17	7.00	7.00	7.00	7.00	0.00	0.00	0.00	0.00	0.50	0.50
cycles	13.17	13.17	13.17	13.17	13.17	13.17	7.00	7.00	7.00	7.00	0.00	0.00	0.00	0.00	0.50	0.50

Execution ports to units layout:

P0: ALU
P1: ALU
P2: ALU
P3: ALU, BRU
P4: ALU, BRU
P5: ALU, BRU
P6 (512 bits): store address, load
P7 (512 bits): store address, load
P8 (512 bits): store address, load
P9 (512 bits): store address, load
P10 (512 bits): VPU, DIV/SQRT
P11 (512 bits): VPU, DIV/SQRT
P12 (512 bits): VPU
P13 (512 bits): VPU
P14 (512 bits): FP store data
P15 (512 bits): FP store data

Cycles executing div or sqrt instructions

Cycles summary

Front-end	15.88
Dispatch	13.17
Overall L1	15.88

Vectorization ratios

all	4%
load	25%
store	12%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	0%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	0%

Vector efficiency ratios

all	8%
load	10%
store	8%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	10%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	7%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 15.88 cycles. At this rate:

1% of peak load performance is reached (3.40 out of 256.00 bytes loaded per cycle (GB/s @ 1GHz))
2% of peak store performance is reached (3.46 out of 128.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

Performance is limited by instruction throughput (loading/decoding program instructions to execution core) (front-end is a bottleneck). By removing all these bottlenecks, you can lower the cost of an iteration from 15.88 to 13.17 cycles (1.21x speedup).

ASM code

In the binary file, the address of the function is: 544ee0

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P14	P15	Latency	Recip. throughput	Vectorization
PUSH %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
SUB $0x8,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
MOVZX 0x38(%RDI),%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	1	0.25	scal (1.6%)
TEST %BPL,%BPL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
JNE 544f00 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x20>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
ADD $0x8,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
POP %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50	N/A
XCHG %AX,%AX	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOV %RDI,%R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 404770 <omp_get_level@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
MOV %EAX,%EBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JLE 545045 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x165>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
LEA -0x1(%RAX),%R13D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.25	N/A
AND $0x7,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
JE 544faf <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0xcf>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x1,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f97 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0xb7>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x2,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f85 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0xa5>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x3,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f73 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x93>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x4,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f62 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x82>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x5,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f51 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x71>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x6,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JNE 5450c0 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x1e0>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %CL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %ECX,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %SIL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %ESI,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %DIL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %EDI,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %R8B	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %R8D,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %R9B	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %R9D,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %R10B	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %R10D,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
JE 54503c <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x15c>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
TEST %BPL,%BPL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
JE 544ef3 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x13>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
MOV 0x48(%R12),%RDI	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	3	0.25	N/A
TEST %RDI,%RDI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
JE 5450a4 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x1c4>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
MOV 0x48(%RDI),%RBX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	3	0.25	N/A
MOVZX 0x40(%R12),%R8D	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	1	0.25	scal (1.6%)
CMP %RBX,0x40(%RDI)	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	1	0.25	scal (12.5%)
JE 5450f0 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x210>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
MOV -0x8(%RBX),%R9	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	3	0.25	N/A
TEST %R9,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
JE 5450f0 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x210>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
VMOVDQU 0x50(%R9),%XMM0	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	3	0.50	vect (25.0%)
VMOVDQU %XMM0,0x50(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.50	0.50	4	0.50	vect (25.0%)
MOVSXD 0x60(%R9),%R10	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	1	0.25	N/A
MOV %R10D,0x60(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
MOV %R10,%R13	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
MOV %R8B,0x50(%R12,%R10,1)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	N/A
CMP $0xe,%R10D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JG 5450e0 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x200>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
INC %R13D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %R13D,0x60(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
MOV %R12,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
CALL 54c110 <_ZN11qmcplusplus12TimerManagerINS_9TimerTypeINSt6chrono3_V212system_clockEEEE10push_timerEPS5_>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
CALL 404640 <_ZNSt6chrono3_V212system_clock3nowEv@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
MOV %RAX,(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (12.5%)
ADD $0x8,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
POP %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50	N/A
NOPL (%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV %R13D,%EBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
SETE %DL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %EDX,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JMP 544f41 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x61>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	1	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOVB $0x1,0xb8719(%RIP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (1.6%)
JMP 54509c <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x1bc>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	1	N/A
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOVQ $0,0x50(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
MOVQ $0,0x58(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
MOV %R8B,0x50(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	N/A
MOVL $0x1,0x60(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
JMP 54509c <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x1bc>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	1	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A

The code analyzed by CQA in that panel excludes loops and represents 0.01% of application time for run gcc_0

Source file and lines
Module	exec

Warnings:
Ignoring paths for analysis

gain
potential
hint
expert

Code clean check

Detected a slowdown caused by scalar integer instructions (typically used for address computation). By removing them, you can lower the cost of an iteration from 15.88 to 5.00 cycles (3.18x speedup).

Workaround

Try to reorganize arrays of structures to structures of arrays
Consider to permute loops (see vectorization gain report)

Vectorization

Details

4% of SSE/AVX instructions are used in vector version (process two or more data elements in vector registers):

25% of SSE/AVX loads are used in vector version.
12% of SSE/AVX stores are used in vector version.
0% of SSE/AVX addition or subtraction instructions are used in vector version.
0% of SSE/AVX instructions that are not load, store, addition, subtraction nor multiply instructions are used in vector version.

Since your execution units are vector units, only a fully vectorized function can use their full power.

Workaround

Try another compiler or update/tune your current one
Make array accesses unit-stride:
- If your function streams arrays of structures (AoS), try to use structures of arrays instead (SoA)

Execution units bottlenecks

Found no such bottlenecks but see expert reports for more complex bottlenecks.

No data for this section

CALL instructions

Detected function call instructions.

Details

omp_get_ancestor_thread_num@plt: 7 occurrences►
omp_get_level@plt: 1 occurrences►
qmcplusplus::TimerManager
>::push_timer(qmcplusplus::TimerType
*): 1 occurrences►
std::chrono::_V2::system_clock::now(): 1 occurrences►

Conversion instructions

Detected expensive conversion instructions.

Details

MOVZX: 2 occurrences►

Workaround

Avoid mixing data with different types. In particular, check if the type of constants is the same as array elements.

Type of elements and instruction set

No instructions are processing arithmetic or math operations on FP elements. This function is probably writing/copying data or processing integer elements.

Matching between your function (in the source code) and the binary function

The binary function does not contain any FP arithmetical operations. The binary function is loading 54 bytes. The binary function is storing 55 bytes.

General properties

nb instructions	123
nb uops	127
loop length	435
used x86 registers	13
used mmx registers	0
used xmm registers	1
used ymm registers	0
used zmm registers	0
nb stack references	0

Front-end

MACRO FUSION NOT POSSIBLE FIT IN UOP CACHE

micro-operation queue	15.88 cycles
front end	15.88 cycles

Back-end

	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P10	P11	P12	P13	P14	P15
uops	13.17	13.17	13.17	13.17	13.17	13.17	7.00	7.00	7.00	7.00	0.00	0.00	0.00	0.00	0.50	0.50
cycles	13.17	13.17	13.17	13.17	13.17	13.17	7.00	7.00	7.00	7.00	0.00	0.00	0.00	0.00	0.50	0.50

Execution ports to units layout:

P0: ALU
P1: ALU
P2: ALU
P3: ALU, BRU
P4: ALU, BRU
P5: ALU, BRU
P6 (512 bits): store address, load
P7 (512 bits): store address, load
P8 (512 bits): store address, load
P9 (512 bits): store address, load
P10 (512 bits): VPU, DIV/SQRT
P11 (512 bits): VPU, DIV/SQRT
P12 (512 bits): VPU
P13 (512 bits): VPU
P14 (512 bits): FP store data
P15 (512 bits): FP store data

Cycles executing div or sqrt instructions

Cycles summary

Front-end	15.88
Dispatch	13.17
Overall L1	15.88

Vectorization ratios

all	4%
load	25%
store	12%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	0%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	0%

Vector efficiency ratios

all	8%
load	10%
store	8%
mul	NA (no mul vectorizable/vectorized instructions)
add-sub	10%
fma	NA (no fma vectorizable/vectorized instructions)
div/sqrt	NA (no div/sqrt vectorizable/vectorized instructions)
other	7%

Cycles and memory resources usage

Assuming all data fit into the L1 cache, each call to the function takes 15.88 cycles. At this rate:

1% of peak load performance is reached (3.40 out of 256.00 bytes loaded per cycle (GB/s @ 1GHz))
2% of peak store performance is reached (3.46 out of 128.00 bytes stored per cycle (GB/s @ 1GHz))

Front-end bottlenecks

ASM code

In the binary file, the address of the function is: 544ee0

Instruction	Nb FU	P0	P1	P2	P3	P4	P5	P6	P7	P8	P9	P14	P15	Latency	Recip. throughput	Vectorization
PUSH %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
PUSH %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.50	N/A
SUB $0x8,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
MOVZX 0x38(%RDI),%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	1	0.25	scal (1.6%)
TEST %BPL,%BPL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
JNE 544f00 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x20>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
ADD $0x8,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
POP %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50	N/A
XCHG %AX,%AX	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOV %RDI,%R12	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 404770 <omp_get_level@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
MOV %EAX,%EBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JLE 545045 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x165>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
LEA -0x1(%RAX),%R13D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.25	N/A
AND $0x7,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
JE 544faf <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0xcf>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x1,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f97 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0xb7>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x2,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f85 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0xa5>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x3,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f73 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x93>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x4,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f62 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x82>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x5,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JE 544f51 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x71>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
CMP $0x6,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JNE 5450c0 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x1e0>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %CL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %ECX,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %SIL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %ESI,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %DIL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %EDI,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %R8B	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %R8D,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %R9B	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %R9D,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
SETE %R10B	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %R10D,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
DEC %EBX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
JE 54503c <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x15c>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
TEST %BPL,%BPL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
JE 544ef3 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x13>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
MOV 0x48(%R12),%RDI	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	3	0.25	N/A
TEST %RDI,%RDI	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
JE 5450a4 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x1c4>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
MOV 0x48(%RDI),%RBX	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	3	0.25	N/A
MOVZX 0x40(%R12),%R8D	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	1	0.25	scal (1.6%)
CMP %RBX,0x40(%RDI)	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	1	0.25	scal (12.5%)
JE 5450f0 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x210>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
MOV -0x8(%RBX),%R9	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	3	0.25	N/A
TEST %R9,%R9	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
JE 5450f0 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x210>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
VMOVDQU 0x50(%R9),%XMM0	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	3	0.50	vect (25.0%)
VMOVDQU %XMM0,0x50(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0.50	0.50	4	0.50	vect (25.0%)
MOVSXD 0x60(%R9),%R10	1	0.17	0.17	0.17	0.17	0.17	0.17	0.25	0.25	0.25	0.25	0	0	1	0.25	N/A
MOV %R10D,0x60(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
MOV %R10,%R13	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
MOV %R8B,0x50(%R12,%R10,1)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	N/A
CMP $0xe,%R10D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JG 5450e0 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x200>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50-1	N/A
INC %R13D	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
MOV %R13D,0x60(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
MOV %R12,%RSI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	scal (12.5%)
CALL 54c110 <_ZN11qmcplusplus12TimerManagerINS_9TimerTypeINSt6chrono3_V212system_clockEEEE10push_timerEPS5_>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
CALL 404640 <_ZNSt6chrono3_V212system_clock3nowEv@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
MOV %RAX,(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (12.5%)
ADD $0x8,%RSP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (12.5%)
POP %RBX	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %RBP	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R12	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
POP %R13	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0.33	N/A
RET	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	1	0.50	N/A
NOPL (%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOV %EBX,%EDI	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
MOV %R13D,%EBX	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0.17	N/A
CALL 4045e0 <omp_get_ancestor_thread_num@plt>	2	0	0	0	0.33	0.33	0.33	0.25	0.25	0.25	0.25	0	0	0	0.50	N/A
TEST %EAX,%EAX	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
SETE %DL	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	N/A
AND %EDX,%EBP	1	0.17	0.17	0.17	0.17	0.17	0.17	0	0	0	0	0	0	1	0.17	scal (6.3%)
JMP 544f41 <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x61>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	1	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOVB $0x1,0xb8719(%RIP)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (1.6%)
JMP 54509c <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x1bc>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	1	N/A
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
MOVQ $0,0x50(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
MOVQ $0,0x58(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
MOV %R8B,0x50(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	N/A
MOVL $0x1,0x60(%R12)	1	0	0	0	0	0	0	0.25	0.25	0.25	0.25	0	0	4	0.50	scal (6.3%)
JMP 54509c <_ZN11qmcplusplus9TimerTypeINSt6chrono3_V212system_clockEE5startEv+0x1bc>	1	0	0	0	0.33	0.33	0.33	0	0	0	0	0	0	0	1	N/A
NOPW %CS:(%RAX,%RAX,1)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A
NOPL (%RAX)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.09	N/A

Name	Coverage (%)	Time (s)
▼qmcplusplus::TimerType::start()–	0.01	0.02
○Loop 2116 - - exec	0.00	0.00

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Matching between your function (in the source code) and the binary function

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Cycles and memory resources usage

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