performanceautofiler[bot]
commented
1 year ago Run Information
| Architecture | x86 |
|---|---|
| OS | Windows 10.0.18362 |
| Baseline | 02682ad6397b2833660b104780a9d361f2cba6d7 |
| Compare | b5e79f56d1ed06dbf6765b29c021726ff4195e91 |
| Diff | Diff |
Improvements in System.Collections.Tests.Perf_BitArray
| Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL |
|---|---|---|---|---|---|---|---|---|---|---|
| [BitArraySetLengthShrink - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/System.Collections.Tests.Perf_BitArray.BitArraySetLengthShrink(Size%3a%20512).html>) | 282.20 ns | 261.88 ns | 0.93 | 0.00 | False | 3592.4750679963736 | 3329.5891211991025 | 0.9268231673646965 | Trace | Trace |
| [BitArrayByteArrayCtor - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/System.Collections.Tests.Perf_BitArray.BitArrayByteArrayCtor(Size%3a%20512).html>) | 277.99 ns | 260.96 ns | 0.94 | 0.00 | False | Trace | Trace | |||
| [BitArraySetLengthGrow - Duration of single invocation](<https://pvscmdupload.z22.web.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/System.Collections.Tests.Perf_BitArray.BitArraySetLengthGrow(Size%3a%20512).html>) | 383.01 ns | 360.41 ns | 0.94 | 0.00 | False | Trace | Trace |
Repro
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Collections.Tests.Perf_BitArray*'
### Payloads
[Baseline]()
[Compare]()
### Histogram
#### System.Collections.Tests.Perf_BitArray.BitArraySetLengthShrink(Size: 512)
```log
```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 261.8813262998059 < 268.2020965286147.
IsChangePoint: Marked as a change because one of 1/30/2023 11:52:26 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 61.855501162251514 (T) = (0 -263.29550451755125) / Math.Sqrt((3.3147341443981375 / (299)) + (4.299823664106643 / (43))) is greater than 1.9669657340893643 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (43) - 2, .975) and 0.07261351005849635 = (283.9113005993424 - 263.29550451755125) / 283.9113005993424 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
```### Baseline Jit Disasm
```assembly
; System.Collections.Tests.Perf_BitArray.BitArraySetLengthShrink()
push ebp
mov ebp,esp
push edi
push esi
mov esi,ecx
mov ecx,offset MT_System.Collections.BitArray
call CORINFO_HELP_NEWSFAST
mov edi,eax
mov edx,[esi+0C]
mov ecx,edi
call dword ptr ds:[0A9B9030]; System.Collections.BitArray..ctor(Byte[])
mov edx,[edi+8]
mov ecx,edx
shr ecx,1F
add edx,ecx
sar edx,1
mov ecx,edi
call dword ptr ds:[0A9B91B0]; System.Collections.BitArray.set_Length(Int32)
mov eax,edi
pop esi
pop edi
pop ebp
ret
; Total bytes of code 56
```
```assembly
; System.Collections.BitArray..ctor(Byte[])
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,18
mov esi,ecx
mov edi,edx
M01_L00:
test edi,edi
je near ptr M01_L06
mov ebx,[edi+4]
cmp ebx,0FFFFFFF
jg near ptr M01_L07
mov edx,ebx
add edx,3
shr edx,2
mov ecx,offset MT_System.Int32[]
call CORINFO_HELP_NEWARR_1_VC
lea edx,[esi+4]
call CORINFO_HELP_ASSIGN_REF_EAX
lea ecx,[ebx*8]
mov [esi+8],ecx
mov ecx,ebx
shr ecx,2
mov [ebp-10],ecx
add edi,8
xor edx,edx
xor eax,eax
mov [ebp-18],ecx
mov [ebp-1C],eax
cmp ecx,1
sbb eax,0
jl short M01_L04
M01_L01:
mov [ebp-20],esi
mov eax,[esi+4]
mov [ebp-24],edi
mov ecx,ebx
cmp ecx,4
jl near ptr M01_L08
mov ecx,[ebp-24]
mov ecx,[ecx]
cmp edx,[eax+4]
jae near ptr M01_L10
mov [eax+edx*4+8],ecx
cmp ebx,4
jb near ptr M01_L09
add edi,4
add ebx,0FFFFFFFC
inc edx
mov ecx,edx
mov eax,ecx
sar eax,1F
mov esi,[ebp-18]
cmp ecx,esi
mov ecx,[ebp-1C]
sbb eax,ecx
jl short M01_L03
M01_L02:
xor ecx,ecx
mov [ebp-14],ecx
lea edx,[ebx-1]
cmp edx,2
ja short M01_L05
lea eax,ds:[0B2F0B48]
mov eax,[eax+edx*4]
lea ecx,[M01_L00]
add eax,ecx
jmp eax
M01_L03:
mov esi,[ebp-20]
jmp short M01_L01
M01_L04:
mov [ebp-20],esi
jmp short M01_L02
cmp ebx,2
jbe near ptr M01_L10
movzx ecx,byte ptr [edi+2]
shl ecx,10
mov [ebp-14],ecx
cmp ebx,1
jbe near ptr M01_L10
movzx edx,byte ptr [edi+1]
shl edx,8
mov ecx,edx
or ecx,[ebp-14]
mov [ebp-14],ecx
mov esi,[ebp-20]
mov edx,[esi+4]
test ebx,ebx
je near ptr M01_L10
movzx eax,byte ptr [edi]
or eax,[ebp-14]
mov ecx,[ebp-10]
cmp ecx,[edx+4]
jae near ptr M01_L10
mov [edx+ecx*4+8],eax
mov [ebp-20],esi
M01_L05:
xor edx,edx
mov esi,[ebp-20]
mov [esi+0C],edx
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M01_L06:
mov ecx,783
mov edx,0A833060
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[87E5AF8]
int 3
M01_L07:
mov ecx,offset MT_System.Int32
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[0B2CBB40]
mov edi,eax
mov dword ptr [esi+4],8
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
mov edx,esi
mov ecx,edi
call dword ptr ds:[0B2CB948]
mov esi,eax
mov ecx,783
mov edx,0A833060
call CORINFO_HELP_STRCNS
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[815BBA0]
mov ecx,ebx
call CORINFO_HELP_THROW
M01_L08:
mov ecx,29
call dword ptr ds:[8845528]
int 3
M01_L09:
call dword ptr ds:[88451E0]
int 3
M01_L10:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 447
```
```assembly
; System.Collections.BitArray.set_Length(Int32)
push ebp
mov ebp,esp
push edi
push esi
push ebx
push eax
mov esi,ecx
mov edi,edx
test edi,edi
jl near ptr M02_L05
lea ebx,[edi+1F]
shr ebx,5
mov ecx,[esi+4]
cmp [ecx+4],ebx
jl short M02_L00
mov ecx,[esi+4]
lea edx,[ebx+100]
cmp [ecx+4],edx
jle short M02_L01
M02_L00:
lea ecx,[esi+4]
mov edx,ebx
call dword ptr ds:[0B2CBFC0]
M02_L01:
mov ecx,[esi+8]
cmp edi,ecx
jle short M02_L04
lea edx,[ecx-1]
sar edx,5
mov [ebp-10],edx
and ecx,1F
jle short M02_L02
mov eax,[esi+4]
cmp edx,[eax+4]
jae short M02_L08
lea eax,[eax+edx*4+8]
mov edx,1
shl edx,cl
dec edx
and [eax],edx
mov edx,[ebp-10]
M02_L02:
mov ecx,[esi+4]
lea eax,[edx+1]
sub ebx,edx
dec ebx
test ecx,ecx
je short M02_L06
cmp [ecx+4],eax
jb short M02_L07
mov edx,[ecx+4]
sub edx,eax
cmp edx,ebx
jb short M02_L07
lea ecx,[ecx+eax*4+8]
mov edx,ebx
M02_L03:
shl edx,2
call dword ptr ds:[815F3A8]; System.SpanHelpers.ClearWithoutReferences(Byte ByRef, UIntPtr)
M02_L04:
mov [esi+8],edi
inc dword ptr [esi+0C]
pop ecx
pop ebx
pop esi
pop edi
pop ebp
ret
M02_L05:
mov ecx,7A7
mov edx,0A833060
call CORINFO_HELP_STRCNS
mov ecx,eax
mov edx,edi
call dword ptr ds:[87D5F60]
int 3
M02_L06:
or eax,ebx
jne short M02_L07
xor ecx,ecx
xor edx,edx
jmp short M02_L03
M02_L07:
call dword ptr ds:[88451E0]
int 3
M02_L08:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 207
```
### Compare Jit Disasm
```assembly
; System.Collections.Tests.Perf_BitArray.BitArraySetLengthShrink()
push ebp
mov ebp,esp
push edi
push esi
mov esi,ecx
mov ecx,offset MT_System.Collections.BitArray
call CORINFO_HELP_NEWSFAST
mov edi,eax
mov edx,[esi+0C]
mov ecx,edi
call dword ptr ds:[0AE59030]; System.Collections.BitArray..ctor(Byte[])
mov edx,[edi+8]
mov ecx,edx
shr ecx,1F
add edx,ecx
sar edx,1
mov ecx,edi
call dword ptr ds:[0AE591B0]; System.Collections.BitArray.set_Length(Int32)
mov eax,edi
pop esi
pop edi
pop ebp
ret
; Total bytes of code 56
```
```assembly
; System.Collections.BitArray..ctor(Byte[])
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,14
mov esi,ecx
mov edi,edx
M01_L00:
test edi,edi
je near ptr M01_L06
mov ebx,[edi+4]
cmp ebx,0FFFFFFF
jg near ptr M01_L07
mov edx,ebx
add edx,3
shr edx,2
mov ecx,offset MT_System.Int32[]
call CORINFO_HELP_NEWARR_1_VC
lea edx,[esi+4]
call CORINFO_HELP_ASSIGN_REF_EAX
lea ecx,[ebx*8]
mov [esi+8],ecx
mov ecx,ebx
shr ecx,2
mov [ebp-10],ecx
add edi,8
xor edx,edx
xor eax,eax
mov [ebp-18],ecx
mov [ebp-1C],eax
cmp ecx,1
sbb eax,0
jl short M01_L04
M01_L01:
mov [ebp-20],esi
mov eax,[esi+4]
mov ecx,edi
cmp ebx,4
jl near ptr M01_L08
mov ecx,[ecx]
cmp edx,[eax+4]
jae near ptr M01_L10
mov [eax+edx*4+8],ecx
cmp ebx,4
jb near ptr M01_L09
add edi,4
add ebx,0FFFFFFFC
inc edx
mov ecx,edx
mov eax,ecx
sar eax,1F
mov esi,[ebp-18]
cmp ecx,esi
mov ecx,[ebp-1C]
sbb eax,ecx
jl short M01_L03
M01_L02:
xor ecx,ecx
mov [ebp-14],ecx
lea edx,[ebx-1]
cmp edx,2
ja short M01_L05
lea eax,ds:[0B780B40]
mov eax,[eax+edx*4]
lea ecx,[M01_L00]
add eax,ecx
jmp eax
M01_L03:
mov esi,[ebp-20]
jmp short M01_L01
M01_L04:
mov [ebp-20],esi
jmp short M01_L02
cmp ebx,2
jbe near ptr M01_L10
movzx ecx,byte ptr [edi+2]
shl ecx,10
mov [ebp-14],ecx
cmp ebx,1
jbe near ptr M01_L10
movzx edx,byte ptr [edi+1]
shl edx,8
mov ecx,edx
or ecx,[ebp-14]
mov [ebp-14],ecx
mov esi,[ebp-20]
mov edx,[esi+4]
test ebx,ebx
je near ptr M01_L10
movzx eax,byte ptr [edi]
or eax,[ebp-14]
mov ecx,[ebp-10]
cmp ecx,[edx+4]
jae near ptr M01_L10
mov [edx+ecx*4+8],eax
mov [ebp-20],esi
M01_L05:
xor edx,edx
mov esi,[ebp-20]
mov [esi+0C],edx
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M01_L06:
mov ecx,783
mov edx,0ACF3440
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8C85AF8]
int 3
M01_L07:
mov ecx,offset MT_System.Int32
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[0B76BB40]
mov edi,eax
mov dword ptr [esi+4],8
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
mov edx,esi
mov ecx,edi
call dword ptr ds:[0B76B948]
mov esi,eax
mov ecx,783
mov edx,0ACF3440
call CORINFO_HELP_STRCNS
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[85FBBA0]
mov ecx,ebx
call CORINFO_HELP_THROW
M01_L08:
mov ecx,29
call dword ptr ds:[8CE55B8]
int 3
M01_L09:
call dword ptr ds:[8CE5270]
int 3
M01_L10:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 441
```
```assembly
; System.Collections.BitArray.set_Length(Int32)
push ebp
mov ebp,esp
push edi
push esi
push ebx
push eax
mov esi,ecx
mov edi,edx
test edi,edi
jl near ptr M02_L05
lea ebx,[edi+1F]
shr ebx,5
mov ecx,[esi+4]
cmp [ecx+4],ebx
jl short M02_L00
mov ecx,[esi+4]
lea edx,[ebx+100]
cmp [ecx+4],edx
jle short M02_L01
M02_L00:
lea ecx,[esi+4]
mov edx,ebx
call dword ptr ds:[0B76BFC0]
M02_L01:
mov ecx,[esi+8]
cmp edi,ecx
jle short M02_L04
lea edx,[ecx-1]
sar edx,5
mov [ebp-10],edx
and ecx,1F
jle short M02_L02
mov eax,[esi+4]
cmp edx,[eax+4]
jae short M02_L08
lea eax,[eax+edx*4+8]
mov edx,1
shl edx,cl
dec edx
and [eax],edx
mov edx,[ebp-10]
M02_L02:
mov ecx,[esi+4]
lea eax,[edx+1]
sub ebx,edx
dec ebx
test ecx,ecx
je short M02_L06
cmp [ecx+4],eax
jb short M02_L07
mov edx,[ecx+4]
sub edx,eax
cmp edx,ebx
jb short M02_L07
lea ecx,[ecx+eax*4+8]
mov edx,ebx
M02_L03:
shl edx,2
call dword ptr ds:[85FF390]; System.SpanHelpers.ClearWithoutReferences(Byte ByRef, UIntPtr)
M02_L04:
mov [esi+8],edi
inc dword ptr [esi+0C]
pop ecx
pop ebx
pop esi
pop edi
pop ebp
ret
M02_L05:
mov ecx,7A7
mov edx,0ACF3440
call CORINFO_HELP_STRCNS
mov ecx,eax
mov edx,edi
call dword ptr ds:[8CA5F60]
int 3
M02_L06:
or eax,ebx
jne short M02_L07
xor ecx,ecx
xor edx,edx
jmp short M02_L03
M02_L07:
call dword ptr ds:[8CE5270]
int 3
M02_L08:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 207
```
#### System.Collections.Tests.Perf_BitArray.BitArrayByteArrayCtor(Size: 512)
```log
```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 260.9630486428867 < 264.17358206728613.
IsChangePoint: Marked as a change because one of 1/30/2023 11:52:26 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 109.89753719869479 (T) = (0 -258.95347838665924) / Math.Sqrt((1.4323229587396062 / (299)) + (1.3015474163963137 / (43))) is greater than 1.9669657340893643 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (43) - 2, .975) and 0.07361353812350623 = (279.53072399408944 - 258.95347838665924) / 279.53072399408944 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
```### Baseline Jit Disasm
```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayByteArrayCtor()
push edi
push esi
mov esi,ecx
mov ecx,offset MT_System.Collections.BitArray
call CORINFO_HELP_NEWSFAST
mov edi,eax
mov edx,[esi+0C]
mov ecx,edi
call dword ptr ds:[0AE89030]; System.Collections.BitArray..ctor(Byte[])
mov eax,edi
pop esi
pop edi
ret
; Total bytes of code 32
```
```assembly
; System.Collections.BitArray..ctor(Byte[])
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,18
mov esi,ecx
mov edi,edx
M01_L00:
test edi,edi
je near ptr M01_L06
mov ebx,[edi+4]
cmp ebx,0FFFFFFF
jg near ptr M01_L07
mov edx,ebx
add edx,3
shr edx,2
mov ecx,offset MT_System.Int32[]
call CORINFO_HELP_NEWARR_1_VC
lea edx,[esi+4]
call CORINFO_HELP_ASSIGN_REF_EAX
lea ecx,[ebx*8]
mov [esi+8],ecx
mov ecx,ebx
shr ecx,2
mov [ebp-10],ecx
add edi,8
xor edx,edx
xor eax,eax
mov [ebp-18],ecx
mov [ebp-1C],eax
cmp ecx,1
sbb eax,0
jl short M01_L04
M01_L01:
mov [ebp-20],esi
mov eax,[esi+4]
mov [ebp-24],edi
mov ecx,ebx
cmp ecx,4
jl near ptr M01_L08
mov ecx,[ebp-24]
mov ecx,[ecx]
cmp edx,[eax+4]
jae near ptr M01_L10
mov [eax+edx*4+8],ecx
cmp ebx,4
jb near ptr M01_L09
add edi,4
add ebx,0FFFFFFFC
inc edx
mov ecx,edx
mov eax,ecx
sar eax,1F
mov esi,[ebp-18]
cmp ecx,esi
mov ecx,[ebp-1C]
sbb eax,ecx
jl short M01_L03
M01_L02:
xor ecx,ecx
mov [ebp-14],ecx
lea edx,[ebx-1]
cmp edx,2
ja short M01_L05
lea eax,ds:[0B7B0B28]
mov eax,[eax+edx*4]
lea ecx,[M01_L00]
add eax,ecx
jmp eax
M01_L03:
mov esi,[ebp-20]
jmp short M01_L01
M01_L04:
mov [ebp-20],esi
jmp short M01_L02
cmp ebx,2
jbe near ptr M01_L10
movzx ecx,byte ptr [edi+2]
shl ecx,10
mov [ebp-14],ecx
cmp ebx,1
jbe near ptr M01_L10
movzx edx,byte ptr [edi+1]
shl edx,8
mov ecx,edx
or ecx,[ebp-14]
mov [ebp-14],ecx
mov esi,[ebp-20]
mov edx,[esi+4]
test ebx,ebx
je near ptr M01_L10
movzx eax,byte ptr [edi]
or eax,[ebp-14]
mov ecx,[ebp-10]
cmp ecx,[edx+4]
jae near ptr M01_L10
mov [edx+ecx*4+8],eax
mov [ebp-20],esi
M01_L05:
xor edx,edx
mov esi,[ebp-20]
mov [esi+0C],edx
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M01_L06:
mov ecx,783
mov edx,0AD03060
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8C45AF8]
int 3
M01_L07:
mov ecx,offset MT_System.Int32
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[0B79BB40]
mov edi,eax
mov dword ptr [esi+4],8
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
mov edx,esi
mov ecx,edi
call dword ptr ds:[0B79B948]
mov esi,eax
mov ecx,783
mov edx,0AD03060
call CORINFO_HELP_STRCNS
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[85BBBA0]
mov ecx,ebx
call CORINFO_HELP_THROW
M01_L08:
mov ecx,29
call dword ptr ds:[8CA5528]
int 3
M01_L09:
call dword ptr ds:[8CA51E0]
int 3
M01_L10:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 447
```
### Compare Jit Disasm
```assembly
; System.Collections.Tests.Perf_BitArray.BitArrayByteArrayCtor()
push edi
push esi
mov esi,ecx
mov ecx,offset MT_System.Collections.BitArray
call CORINFO_HELP_NEWSFAST
mov edi,eax
mov edx,[esi+0C]
mov ecx,edi
call dword ptr ds:[0A909030]; System.Collections.BitArray..ctor(Byte[])
mov eax,edi
pop esi
pop edi
ret
; Total bytes of code 32
```
```assembly
; System.Collections.BitArray..ctor(Byte[])
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,14
mov esi,ecx
mov edi,edx
M01_L00:
test edi,edi
je near ptr M01_L06
mov ebx,[edi+4]
cmp ebx,0FFFFFFF
jg near ptr M01_L07
mov edx,ebx
add edx,3
shr edx,2
mov ecx,offset MT_System.Int32[]
call CORINFO_HELP_NEWARR_1_VC
lea edx,[esi+4]
call CORINFO_HELP_ASSIGN_REF_EAX
lea ecx,[ebx*8]
mov [esi+8],ecx
mov ecx,ebx
shr ecx,2
mov [ebp-10],ecx
add edi,8
xor edx,edx
xor eax,eax
mov [ebp-18],ecx
mov [ebp-1C],eax
cmp ecx,1
sbb eax,0
jl short M01_L04
M01_L01:
mov [ebp-20],esi
mov eax,[esi+4]
mov ecx,edi
cmp ebx,4
jl near ptr M01_L08
mov ecx,[ecx]
cmp edx,[eax+4]
jae near ptr M01_L10
mov [eax+edx*4+8],ecx
cmp ebx,4
jb near ptr M01_L09
add edi,4
add ebx,0FFFFFFFC
inc edx
mov ecx,edx
mov eax,ecx
sar eax,1F
mov esi,[ebp-18]
cmp ecx,esi
mov ecx,[ebp-1C]
sbb eax,ecx
jl short M01_L03
M01_L02:
xor ecx,ecx
mov [ebp-14],ecx
lea edx,[ebx-1]
cmp edx,2
ja short M01_L05
lea eax,ds:[0B230B20]
mov eax,[eax+edx*4]
lea ecx,[M01_L00]
add eax,ecx
jmp eax
M01_L03:
mov esi,[ebp-20]
jmp short M01_L01
M01_L04:
mov [ebp-20],esi
jmp short M01_L02
cmp ebx,2
jbe near ptr M01_L10
movzx ecx,byte ptr [edi+2]
shl ecx,10
mov [ebp-14],ecx
cmp ebx,1
jbe near ptr M01_L10
movzx edx,byte ptr [edi+1]
shl edx,8
mov ecx,edx
or ecx,[ebp-14]
mov [ebp-14],ecx
mov esi,[ebp-20]
mov edx,[esi+4]
test ebx,ebx
je near ptr M01_L10
movzx eax,byte ptr [edi]
or eax,[ebp-14]
mov ecx,[ebp-10]
cmp ecx,[edx+4]
jae near ptr M01_L10
mov [edx+ecx*4+8],eax
mov [ebp-20],esi
M01_L05:
xor edx,edx
mov esi,[ebp-20]
mov [esi+0C],edx
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M01_L06:
mov ecx,783
mov edx,0A7A3440
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8735AF8]
int 3
M01_L07:
mov ecx,offset MT_System.Int32
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[0B21BB40]
mov edi,eax
mov dword ptr [esi+4],8
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
mov edx,esi
mov ecx,edi
call dword ptr ds:[0B21B948]
mov esi,eax
mov ecx,783
mov edx,0A7A3440
call CORINFO_HELP_STRCNS
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[80ABBA0]
mov ecx,ebx
call CORINFO_HELP_THROW
M01_L08:
mov ecx,29
call dword ptr ds:[87955B8]
int 3
M01_L09:
call dword ptr ds:[8795270]
int 3
M01_L10:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 441
```
#### System.Collections.Tests.Perf_BitArray.BitArraySetLengthGrow(Size: 512)
```log
```
### Description of detection logic
```IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsRegressionBase: Marked as not a regression because the compare was not 5% greater than the baseline, or the value was too small.
IsImprovementBase: Marked as improvement because the compare was 5% less than the baseline, and the value was not too small.
IsImprovementCheck: Marked as improvement because the three check build points were 0.05 less than the baseline.
IsImprovementWindowed:Marked as improvement because 360.4093381139245 < 363.01654466220833.
IsChangePoint: Marked as a change because one of 1/30/2023 11:52:26 AM, 2/7/2023 8:22:47 AM falls between 1/29/2023 5:12:48 PM and 2/7/2023 8:22:47 AM.
IsImprovementStdDev: Marked as improvement because 66.36831729022987 (T) = (0 -362.6429305003794) / Math.Sqrt((3.363148976294933 / (299)) + (3.5899825470245745 / (43))) is greater than 1.9669657340893643 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (299) + (43) - 2, .975) and 0.053326052716977074 = (383.0705720181414 - 362.6429305003794) / 383.0705720181414 is greater than 0.05.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
```### Baseline Jit Disasm
```assembly
; System.Collections.Tests.Perf_BitArray.BitArraySetLengthGrow()
push ebp
mov ebp,esp
push edi
push esi
mov esi,ecx
mov ecx,offset MT_System.Collections.BitArray
call CORINFO_HELP_NEWSFAST
mov edi,eax
mov edx,[esi+0C]
mov ecx,edi
call dword ptr ds:[0B099030]; System.Collections.BitArray..ctor(Byte[])
mov edx,[edi+8]
add edx,edx
mov ecx,edi
call dword ptr ds:[0B0991B0]; System.Collections.BitArray.set_Length(Int32)
mov eax,edi
pop esi
pop edi
pop ebp
ret
; Total bytes of code 49
```
```assembly
; System.Collections.BitArray..ctor(Byte[])
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,18
mov esi,ecx
mov edi,edx
M01_L00:
test edi,edi
je near ptr M01_L06
mov ebx,[edi+4]
cmp ebx,0FFFFFFF
jg near ptr M01_L07
mov edx,ebx
add edx,3
shr edx,2
mov ecx,offset MT_System.Int32[]
call CORINFO_HELP_NEWARR_1_VC
lea edx,[esi+4]
call CORINFO_HELP_ASSIGN_REF_EAX
lea ecx,[ebx*8]
mov [esi+8],ecx
mov ecx,ebx
shr ecx,2
mov [ebp-10],ecx
add edi,8
xor edx,edx
xor eax,eax
mov [ebp-18],ecx
mov [ebp-1C],eax
cmp ecx,1
sbb eax,0
jl short M01_L04
M01_L01:
mov [ebp-20],esi
mov eax,[esi+4]
mov [ebp-24],edi
mov ecx,ebx
cmp ecx,4
jl near ptr M01_L08
mov ecx,[ebp-24]
mov ecx,[ecx]
cmp edx,[eax+4]
jae near ptr M01_L10
mov [eax+edx*4+8],ecx
cmp ebx,4
jb near ptr M01_L09
add edi,4
add ebx,0FFFFFFFC
inc edx
mov ecx,edx
mov eax,ecx
sar eax,1F
mov esi,[ebp-18]
cmp ecx,esi
mov ecx,[ebp-1C]
sbb eax,ecx
jl short M01_L03
M01_L02:
xor ecx,ecx
mov [ebp-14],ecx
lea edx,[ebx-1]
cmp edx,2
ja short M01_L05
lea eax,ds:[0B9C0B48]
mov eax,[eax+edx*4]
lea ecx,[M01_L00]
add eax,ecx
jmp eax
M01_L03:
mov esi,[ebp-20]
jmp short M01_L01
M01_L04:
mov [ebp-20],esi
jmp short M01_L02
cmp ebx,2
jbe near ptr M01_L10
movzx ecx,byte ptr [edi+2]
shl ecx,10
mov [ebp-14],ecx
cmp ebx,1
jbe near ptr M01_L10
movzx edx,byte ptr [edi+1]
shl edx,8
mov ecx,edx
or ecx,[ebp-14]
mov [ebp-14],ecx
mov esi,[ebp-20]
mov edx,[esi+4]
test ebx,ebx
je near ptr M01_L10
movzx eax,byte ptr [edi]
or eax,[ebp-14]
mov ecx,[ebp-10]
cmp ecx,[edx+4]
jae near ptr M01_L10
mov [edx+ecx*4+8],eax
mov [ebp-20],esi
M01_L05:
xor edx,edx
mov esi,[ebp-20]
mov [esi+0C],edx
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M01_L06:
mov ecx,783
mov edx,0AF13060
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8EC5AF8]
int 3
M01_L07:
mov ecx,offset MT_System.Int32
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[0B9ABB40]
mov edi,eax
mov dword ptr [esi+4],8
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
mov edx,esi
mov ecx,edi
call dword ptr ds:[0B9AB948]
mov esi,eax
mov ecx,783
mov edx,0AF13060
call CORINFO_HELP_STRCNS
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[883BBA0]
mov ecx,ebx
call CORINFO_HELP_THROW
M01_L08:
mov ecx,29
call dword ptr ds:[8F25528]
int 3
M01_L09:
call dword ptr ds:[8F251E0]
int 3
M01_L10:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 447
```
```assembly
; System.Collections.BitArray.set_Length(Int32)
push ebp
mov ebp,esp
push edi
push esi
push ebx
push eax
mov esi,ecx
mov edi,edx
test edi,edi
jl near ptr M02_L05
lea ebx,[edi+1F]
shr ebx,5
mov ecx,[esi+4]
cmp [ecx+4],ebx
jl short M02_L00
mov ecx,[esi+4]
lea edx,[ebx+100]
cmp [ecx+4],edx
jle short M02_L01
M02_L00:
lea ecx,[esi+4]
mov edx,ebx
call dword ptr ds:[0B9ABFC0]; System.Array.Resize[[System.Int32, System.Private.CoreLib]](Int32[] ByRef, Int32)
M02_L01:
mov ecx,[esi+8]
cmp edi,ecx
jle short M02_L04
lea edx,[ecx-1]
sar edx,5
mov [ebp-10],edx
and ecx,1F
jle short M02_L02
mov eax,[esi+4]
cmp edx,[eax+4]
jae short M02_L08
lea eax,[eax+edx*4+8]
mov edx,1
shl edx,cl
dec edx
and [eax],edx
mov edx,[ebp-10]
M02_L02:
mov ecx,[esi+4]
lea eax,[edx+1]
sub ebx,edx
dec ebx
test ecx,ecx
je short M02_L06
cmp [ecx+4],eax
jb short M02_L07
mov edx,[ecx+4]
sub edx,eax
cmp edx,ebx
jb short M02_L07
lea ecx,[ecx+eax*4+8]
mov edx,ebx
M02_L03:
shl edx,2
call dword ptr ds:[883F3A8]; System.SpanHelpers.ClearWithoutReferences(Byte ByRef, UIntPtr)
M02_L04:
mov [esi+8],edi
inc dword ptr [esi+0C]
pop ecx
pop ebx
pop esi
pop edi
pop ebp
ret
M02_L05:
mov ecx,7A7
mov edx,0AF13060
call CORINFO_HELP_STRCNS
mov ecx,eax
mov edx,edi
call dword ptr ds:[8EB5F60]
int 3
M02_L06:
or eax,ebx
jne short M02_L07
xor ecx,ecx
xor edx,edx
jmp short M02_L03
M02_L07:
call dword ptr ds:[8F251E0]
int 3
M02_L08:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 207
```
### Compare Jit Disasm
```assembly
; System.Collections.Tests.Perf_BitArray.BitArraySetLengthGrow()
push ebp
mov ebp,esp
push edi
push esi
mov esi,ecx
mov ecx,offset MT_System.Collections.BitArray
call CORINFO_HELP_NEWSFAST
mov edi,eax
mov edx,[esi+0C]
mov ecx,edi
call dword ptr ds:[0A699030]; System.Collections.BitArray..ctor(Byte[])
mov edx,[edi+8]
add edx,edx
mov ecx,edi
call dword ptr ds:[0A6991B0]; System.Collections.BitArray.set_Length(Int32)
mov eax,edi
pop esi
pop edi
pop ebp
ret
; Total bytes of code 49
```
```assembly
; System.Collections.BitArray..ctor(Byte[])
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,14
mov esi,ecx
mov edi,edx
M01_L00:
test edi,edi
je near ptr M01_L06
mov ebx,[edi+4]
cmp ebx,0FFFFFFF
jg near ptr M01_L07
mov edx,ebx
add edx,3
shr edx,2
mov ecx,offset MT_System.Int32[]
call CORINFO_HELP_NEWARR_1_VC
lea edx,[esi+4]
call CORINFO_HELP_ASSIGN_REF_EAX
lea ecx,[ebx*8]
mov [esi+8],ecx
mov ecx,ebx
shr ecx,2
mov [ebp-10],ecx
add edi,8
xor edx,edx
xor eax,eax
mov [ebp-18],ecx
mov [ebp-1C],eax
cmp ecx,1
sbb eax,0
jl short M01_L04
M01_L01:
mov [ebp-20],esi
mov eax,[esi+4]
mov ecx,edi
cmp ebx,4
jl near ptr M01_L08
mov ecx,[ecx]
cmp edx,[eax+4]
jae near ptr M01_L10
mov [eax+edx*4+8],ecx
cmp ebx,4
jb near ptr M01_L09
add edi,4
add ebx,0FFFFFFFC
inc edx
mov ecx,edx
mov eax,ecx
sar eax,1F
mov esi,[ebp-18]
cmp ecx,esi
mov ecx,[ebp-1C]
sbb eax,ecx
jl short M01_L03
M01_L02:
xor ecx,ecx
mov [ebp-14],ecx
lea edx,[ebx-1]
cmp edx,2
ja short M01_L05
lea eax,ds:[0AFC0B40]
mov eax,[eax+edx*4]
lea ecx,[M01_L00]
add eax,ecx
jmp eax
M01_L03:
mov esi,[ebp-20]
jmp short M01_L01
M01_L04:
mov [ebp-20],esi
jmp short M01_L02
cmp ebx,2
jbe near ptr M01_L10
movzx ecx,byte ptr [edi+2]
shl ecx,10
mov [ebp-14],ecx
cmp ebx,1
jbe near ptr M01_L10
movzx edx,byte ptr [edi+1]
shl edx,8
mov ecx,edx
or ecx,[ebp-14]
mov [ebp-14],ecx
mov esi,[ebp-20]
mov edx,[esi+4]
test ebx,ebx
je near ptr M01_L10
movzx eax,byte ptr [edi]
or eax,[ebp-14]
mov ecx,[ebp-10]
cmp ecx,[edx+4]
jae near ptr M01_L10
mov [edx+ecx*4+8],eax
mov [ebp-20],esi
M01_L05:
xor edx,edx
mov esi,[ebp-20]
mov [esi+0C],edx
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M01_L06:
mov ecx,783
mov edx,0A533440
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8455AF8]
int 3
M01_L07:
mov ecx,offset MT_System.Int32
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[0AFABB40]
mov edi,eax
mov dword ptr [esi+4],8
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
mov edx,esi
mov ecx,edi
call dword ptr ds:[0AFAB948]
mov esi,eax
mov ecx,783
mov edx,0A533440
call CORINFO_HELP_STRCNS
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[4C3BBA0]
mov ecx,ebx
call CORINFO_HELP_THROW
M01_L08:
mov ecx,29
call dword ptr ds:[84B55B8]
int 3
M01_L09:
call dword ptr ds:[84B5270]
int 3
M01_L10:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 441
```
```assembly
; System.Collections.BitArray.set_Length(Int32)
push ebp
mov ebp,esp
push edi
push esi
push ebx
push eax
mov esi,ecx
mov edi,edx
test edi,edi
jl near ptr M02_L05
lea ebx,[edi+1F]
shr ebx,5
mov ecx,[esi+4]
cmp [ecx+4],ebx
jl short M02_L00
mov ecx,[esi+4]
lea edx,[ebx+100]
cmp [ecx+4],edx
jle short M02_L01
M02_L00:
lea ecx,[esi+4]
mov edx,ebx
call dword ptr ds:[0AFABFC0]; System.Array.Resize[[System.Int32, System.Private.CoreLib]](Int32[] ByRef, Int32)
M02_L01:
mov ecx,[esi+8]
cmp edi,ecx
jle short M02_L04
lea edx,[ecx-1]
sar edx,5
mov [ebp-10],edx
and ecx,1F
jle short M02_L02
mov eax,[esi+4]
cmp edx,[eax+4]
jae short M02_L08
lea eax,[eax+edx*4+8]
mov edx,1
shl edx,cl
dec edx
and [eax],edx
mov edx,[ebp-10]
M02_L02:
mov ecx,[esi+4]
lea eax,[edx+1]
sub ebx,edx
dec ebx
test ecx,ecx
je short M02_L06
cmp [ecx+4],eax
jb short M02_L07
mov edx,[ecx+4]
sub edx,eax
cmp edx,ebx
jb short M02_L07
lea ecx,[ecx+eax*4+8]
mov edx,ebx
M02_L03:
shl edx,2
call dword ptr ds:[4C3F390]; System.SpanHelpers.ClearWithoutReferences(Byte ByRef, UIntPtr)
M02_L04:
mov [esi+8],edi
inc dword ptr [esi+0C]
pop ecx
pop ebx
pop esi
pop edi
pop ebp
ret
M02_L05:
mov ecx,7A7
mov edx,0A533440
call CORINFO_HELP_STRCNS
mov ecx,eax
mov edx,edi
call dword ptr ds:[8475F60]
int 3
M02_L06:
or eax,ebx
jne short M02_L07
xor ecx,ecx
xor edx,edx
jmp short M02_L03
M02_L07:
call dword ptr ds:[84B5270]
int 3
M02_L08:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 207
```
### Docs
[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)
Run Information
Improvements in System.Text.Json.Document.Tests.Perf_EnumerateArray
Repro