performanceautofiler[bot]
commented
1 year ago Run Information
| Architecture | x86 |
|---|---|
| OS | Windows 10.0.18362 |
| Baseline | 3ff80e90e828bac0370c1930c9950c9650ae61b9 |
| Compare | 46cb4eddbb1f4bebdea970964d7449bacde8df1a |
| Diff | Diff |
Regressions in System.IO.Tests.Perf_FileStream
| Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio | Baseline ETL | Compare ETL |
|---|---|---|---|---|---|---|---|---|---|---|
| [WriteAsync_NoBuffering_PreallocationSize - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/System.IO.Tests.Perf_FileStream.WriteAsync_NoBuffering_PreallocationSize(fileSize%3a%20104857600%2c%20userBufferSize%3a%2016384%2c%20options%3a%20Asynchronous).html>) | 106.41 ms | 132.52 ms | 1.25 | 0.22 | False | Trace | Trace | |||
| [Read - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/System.IO.Tests.Perf_FileStream.Read(fileSize%3a%201048576%2c%20userBufferSize%3a%204096%2c%20options%3a%200).html>) | 467.72 μs | 520.09 μs | 1.11 | 0.25 | False | |||||
| [OpenClose - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/System.IO.Tests.Perf_FileStream.OpenClose(fileSize%3a%201024%2c%20options%3a%20Asynchronous).html>) | 17.06 μs | 21.76 μs | 1.28 | 0.55 | False | Trace | Trace | |||
| [SeekBackward - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/System.IO.Tests.Perf_FileStream.SeekBackward(fileSize%3a%201024%2c%20options%3a%200).html>) | 36.54 μs | 42.87 μs | 1.17 | 0.35 | False | |||||
| [Read - Duration of single invocation](<https://pvscmdupload.blob.core.windows.net/reports/allTestHistory/refs/heads/main_x86_Windows 10.0.18362/System.IO.Tests.Perf_FileStream.Read(fileSize%3a%201048576%2c%20userBufferSize%3a%20512%2c%20options%3a%200).html>) | 520.53 μs | 585.88 μs | 1.13 | 0.31 | False |
Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md
Payloads
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.IO.Tests.Perf_FileStream*'
### Payloads
[Baseline]()
[Compare]()
### Histogram
#### System.IO.Tests.Perf_FileStream.WriteAsync_NoBuffering_PreallocationSize(fileSize: 104857600, userBufferSize: 16384, options: Asynchronous)
```log
```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 132.51828214285715 > 111.095929.
IsChangePoint: Marked as a change because one of 1/21/2023 11:57:09 PM, 2/1/2023 4:12:58 PM, 2/9/2023 4:10:34 PM, 2/14/2023 7:27:15 AM falls between 2/5/2023 7:19:43 PM and 2/14/2023 7:27:15 AM.
IsRegressionStdDev: Marked as regression because -14.769911231908708 (T) = (0 -132087562.48438175) / Math.Sqrt((8928520867252.025 / (34)) + (74828779855071.45 / (21))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (34) + (21) - 2, .025) and -0.27994512829908175 = (103197832.12887636 - 132087562.48438175) / 103197832.12887636 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
```### Baseline Jit Disasm
```assembly
; System.IO.Tests.Perf_FileStream.WriteAsync_NoBuffering_PreallocationSize(Int64, Int32, System.IO.FileOptions)
push ebp
mov ebp,esp
sub esp,3C
vxorps xmm4,xmm4,xmm4
vmovdqu xmmword ptr [ebp-3C],xmm4
vmovdqu xmmword ptr [ebp-2C],xmm4
vmovdqu xmmword ptr [ebp-1C],xmm4
xor eax,eax
mov [ebp-0C],eax
mov [ebp-8],eax
mov [ebp-4],eax
mov [ebp-34],ecx
mov ecx,[ebp+0C]
mov eax,[ebp+10]
mov [ebp-3C],ecx
mov [ebp-38],eax
mov [ebp-28],edx
mov ecx,[ebp+8]
mov [ebp-24],ecx
mov dword ptr [ebp-2C],0FFFFFFFF
lea ecx,[ebp-3C]
call dword ptr ds:[0B87B738]; System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[System.IO.Tests.Perf_FileStream+d__41, MicroBenchmarks]](d__41 ByRef)
mov eax,[ebp-1C]
test eax,eax
je short M00_L01
M00_L00:
mov esp,ebp
pop ebp
ret 0C
M00_L01:
lea ecx,[ebp-1C]
call dword ptr ds:[0B879BD0]
jmp short M00_L00
; Total bytes of code 100
```
```assembly
; System.Threading.Tasks.Task.GetAwaiter()
mov eax,ecx
ret
; Total bytes of code 3
```
```assembly
; System.Runtime.CompilerServices.TaskAwaiter.GetResult()
mov ecx,[ecx]
mov eax,[ecx+1C]
and eax,11000000
cmp eax,1000000
jne short M02_L01
M02_L00:
ret
M02_L01:
call dword ptr ds:[0B879AC8]; System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
jmp short M02_L00
; Total bytes of code 26
```
```assembly
; System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[System.IO.Tests.Perf_FileStream+d__41, MicroBenchmarks]](d__41 ByRef)
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,20
xor eax,eax
mov [ebp-18],eax
mov esi,ecx
mov ebx,esi
cmp [ebx],bl
mov ecx,5354E68
mov edx,2FE
call CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE
mov eax,[eax+0C]
test eax,eax
je short M03_L04
M03_L00:
mov edi,eax
mov [ebp-24],edi
mov ecx,[eax+4]
mov [ebp-28],ecx
mov eax,[eax+8]
mov [ebp-2C],eax
mov ecx,esi
call dword ptr ds:[0B87B630]; System.IO.Tests.Perf_FileStream+d__41.MoveNext()
mov eax,[ebp-2C]
cmp eax,[edi+8]
je short M03_L01
lea edx,[edi+8]
call CORINFO_HELP_ASSIGN_REF_EAX
M03_L01:
mov ecx,[edi+4]
mov edx,[ebp-28]
cmp edx,ecx
je short M03_L09
lea edx,[edi+4]
mov eax,[ebp-28]
call CORINFO_HELP_ASSIGN_REF_EAX
test ecx,ecx
je short M03_L02
cmp dword ptr [ecx+8],0
jne short M03_L03
M03_L02:
test eax,eax
je short M03_L09
cmp dword ptr [eax+8],0
je short M03_L09
M03_L03:
mov edx,eax
call dword ptr ds:[0B87B930]
jmp short M03_L09
M03_L04:
call dword ptr ds:[55771F8]
jmp short M03_L00
mov eax,[ebp-2C]
mov edi,[ebp-24]
cmp eax,[edi+8]
je short M03_L05
lea edx,[edi+8]
call CORINFO_HELP_ASSIGN_REF_EAX
M03_L05:
mov ecx,[edi+4]
mov edx,[ebp-28]
cmp edx,ecx
je short M03_L08
lea edx,[edi+4]
mov eax,[ebp-28]
call CORINFO_HELP_ASSIGN_REF_EAX
test ecx,ecx
je short M03_L06
cmp dword ptr [ecx+8],0
jne short M03_L07
M03_L06:
test eax,eax
je short M03_L08
cmp dword ptr [eax+8],0
je short M03_L08
M03_L07:
mov edx,eax
call dword ptr ds:[0B87B930]
M03_L08:
pop eax
jmp eax
M03_L09:
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
; Total bytes of code 221
```
```assembly
; System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
push ebp
mov ebp,esp
push esi
mov esi,ecx
test dword ptr [esi+1C],1600000
jne short M04_L00
push 0
mov ecx,esi
mov edx,0FFFFFFFF
call dword ptr ds:[0ADD9AE0]; System.Threading.Tasks.Task.InternalWaitCore(Int32, System.Threading.CancellationToken)
M04_L00:
mov ecx,esi
call dword ptr ds:[0ADD9270]; System.Threading.Tasks.Task.NotifyDebuggerOfWaitCompletionIfNecessary()
mov ecx,[esi+1C]
and ecx,1600000
cmp ecx,1000000
je short M04_L01
mov ecx,esi
call dword ptr ds:[0B879AE0]
M04_L01:
pop esi
pop ebp
ret
; Total bytes of code 66
```
### Compare Jit Disasm
```assembly
; System.IO.Tests.Perf_FileStream.WriteAsync_NoBuffering_PreallocationSize(Int64, Int32, System.IO.FileOptions)
push ebp
mov ebp,esp
sub esp,3C
vxorps xmm4,xmm4,xmm4
vmovdqu xmmword ptr [ebp-3C],xmm4
vmovdqu xmmword ptr [ebp-2C],xmm4
vmovdqu xmmword ptr [ebp-1C],xmm4
xor eax,eax
mov [ebp-0C],eax
mov [ebp-8],eax
mov [ebp-4],eax
mov [ebp-34],ecx
mov ecx,[ebp+0C]
mov eax,[ebp+10]
mov [ebp-3C],ecx
mov [ebp-38],eax
mov [ebp-28],edx
mov ecx,[ebp+8]
mov [ebp-24],ecx
mov dword ptr [ebp-2C],0FFFFFFFF
lea ecx,[ebp-3C]
call dword ptr ds:[0BA0B738]; System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[System.IO.Tests.Perf_FileStream+d__41, MicroBenchmarks]](d__41 ByRef)
mov eax,[ebp-1C]
test eax,eax
je short M00_L01
M00_L00:
mov esp,ebp
pop ebp
ret 0C
M00_L01:
lea ecx,[ebp-1C]
call dword ptr ds:[0BA09BD0]
jmp short M00_L00
; Total bytes of code 100
```
```assembly
; System.Threading.Tasks.Task.GetAwaiter()
mov eax,ecx
ret
; Total bytes of code 3
```
```assembly
; System.Runtime.CompilerServices.TaskAwaiter.GetResult()
mov ecx,[ecx]
mov eax,[ecx+1C]
and eax,11000000
cmp eax,1000000
jne short M02_L01
M02_L00:
ret
M02_L01:
call dword ptr ds:[0BA09AC8]; System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
jmp short M02_L00
; Total bytes of code 26
```
```assembly
; System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[[System.IO.Tests.Perf_FileStream+d__41, MicroBenchmarks]](d__41 ByRef)
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,20
xor eax,eax
mov [ebp-18],eax
mov esi,ecx
mov ebx,esi
cmp [ebx],bl
mov ecx,3A54E68
mov edx,2FE
call CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE
mov eax,[eax+0C]
test eax,eax
je short M03_L04
M03_L00:
mov edi,eax
mov [ebp-24],edi
mov ecx,[eax+4]
mov [ebp-28],ecx
mov eax,[eax+8]
mov [ebp-2C],eax
mov ecx,esi
call dword ptr ds:[0BA0B630]; System.IO.Tests.Perf_FileStream+d__41.MoveNext()
mov eax,[ebp-2C]
cmp eax,[edi+8]
je short M03_L01
lea edx,[edi+8]
call CORINFO_HELP_ASSIGN_REF_EAX
M03_L01:
mov ecx,[edi+4]
mov edx,[ebp-28]
cmp edx,ecx
je short M03_L09
lea edx,[edi+4]
mov eax,[ebp-28]
call CORINFO_HELP_ASSIGN_REF_EAX
test ecx,ecx
je short M03_L02
cmp dword ptr [ecx+8],0
jne short M03_L03
M03_L02:
test eax,eax
je short M03_L09
cmp dword ptr [eax+8],0
je short M03_L09
M03_L03:
mov edx,eax
call dword ptr ds:[0BA0B930]
jmp short M03_L09
M03_L04:
call dword ptr ds:[88971F8]
jmp short M03_L00
mov eax,[ebp-2C]
mov edi,[ebp-24]
cmp eax,[edi+8]
je short M03_L05
lea edx,[edi+8]
call CORINFO_HELP_ASSIGN_REF_EAX
M03_L05:
mov ecx,[edi+4]
mov edx,[ebp-28]
cmp edx,ecx
je short M03_L08
lea edx,[edi+4]
mov eax,[ebp-28]
call CORINFO_HELP_ASSIGN_REF_EAX
test ecx,ecx
je short M03_L06
cmp dword ptr [ecx+8],0
jne short M03_L07
M03_L06:
test eax,eax
je short M03_L08
cmp dword ptr [eax+8],0
je short M03_L08
M03_L07:
mov edx,eax
call dword ptr ds:[0BA0B930]
M03_L08:
pop eax
jmp eax
M03_L09:
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
; Total bytes of code 221
```
```assembly
; System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
push ebp
mov ebp,esp
push esi
mov esi,ecx
test dword ptr [esi+1C],1600000
jne short M04_L00
push 0
mov ecx,esi
mov edx,0FFFFFFFF
call dword ptr ds:[0AF69AE0]; System.Threading.Tasks.Task.InternalWaitCore(Int32, System.Threading.CancellationToken)
M04_L00:
mov ecx,esi
call dword ptr ds:[0AF69270]; System.Threading.Tasks.Task.NotifyDebuggerOfWaitCompletionIfNecessary()
mov ecx,[esi+1C]
and ecx,1600000
cmp ecx,1000000
je short M04_L01
mov ecx,esi
call dword ptr ds:[0BA09AE0]
M04_L01:
pop esi
pop ebp
ret
; Total bytes of code 66
```
#### System.IO.Tests.Perf_FileStream.Read(fileSize: 1048576, userBufferSize: 4096, options: 0)
```log
```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 520.0899444444444 > 491.09226222704984.
IsChangePoint: Marked as a change because one of 1/27/2023 3:53:39 PM, 2/9/2023 1:20:08 AM, 2/14/2023 7:27:15 AM falls between 2/5/2023 7:19:43 PM and 2/14/2023 7:27:15 AM.
IsRegressionStdDev: Marked as regression because -5.365473435278017 (T) = (0 -512354.06095105014) / Math.Sqrt((719721187.2068585 / (32)) + (433338216.1128244 / (23))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (32) + (23) - 2, .025) and -0.07218575890108081 = (477859.41633488867 - 512354.06095105014) / 477859.41633488867 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
```#### System.IO.Tests.Perf_FileStream.OpenClose(fileSize: 1024, options: Asynchronous)
```log
```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 21.756275023277468 > 18.15073222082235.
IsChangePoint: Marked as a change because one of 1/25/2023 2:34:16 AM, 2/11/2023 1:50:45 AM, 2/14/2023 7:27:15 AM falls between 2/5/2023 7:19:43 PM and 2/14/2023 7:27:15 AM.
IsRegressionStdDev: Marked as regression because -6.097742574902279 (T) = (0 -21669.081272124204) / Math.Sqrt((4926472.271273191 / (41)) + (2532711.1932477597 / (14))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (41) + (14) - 2, .025) and -0.1825982114732036 = (18323.282634708434 - 21669.081272124204) / 18323.282634708434 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
```### Baseline Jit Disasm
```assembly
; System.IO.Tests.Perf_FileStream.OpenClose(Int64, System.IO.FileOptions)
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,28
vxorps xmm4,xmm4,xmm4
vmovdqu xmmword ptr [ebp-28],xmm4
xor eax,eax
mov [ebp-18],eax
mov [ebp-14],eax
mov esi,edx
mov ecx,[ecx+4]
cmp [ecx],cl
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
call dword ptr ds:[0B40DB40]; System.Collections.Generic.Dictionary`2[[System.Int64, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].FindValue(Int64)
test eax,eax
je near ptr M00_L07
mov edi,[eax]
mov ecx,offset MT_System.IO.FileStream
call CORINFO_HELP_NEWFAST
mov ebx,eax
push 1
push 1
push 1000
push esi
push 0
push 0
mov ecx,edi
mov edx,3
call dword ptr ds:[0A9D7600]; System.IO.Strategies.FileStreamHelpers.ValidateArguments(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, Int32, System.IO.FileOptions, Int64)
test esi,40000000
jne near ptr M00_L08
mov ecx,offset MT_System.IO.Strategies.SyncWindowsFileStreamStrategy
call CORINFO_HELP_NEWSFAST
mov [ebp-30],eax
push 3
push 1
push 1
push esi
push 0
push 0
push 0
push 0
mov ecx,eax
mov edx,edi
call dword ptr ds:[0A9D7750]; System.IO.Strategies.OSFileStreamStrategy..ctor(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, System.IO.FileOptions, Int64, System.Nullable`1)
mov edi,[ebp-30]
M00_L00:
mov ecx,offset MT_System.IO.Strategies.BufferedFileStreamStrategy
call CORINFO_HELP_NEWSFAST
lea edx,[eax+8]
call CORINFO_HELP_ASSIGN_REF_EDI
mov dword ptr [eax+10],1000
mov ecx,ebx
mov edx,eax
call dword ptr ds:[0A9D75D0]; System.IO.Strategies.FileStreamHelpers.WrapIfDerivedType(System.IO.FileStream, System.IO.Strategies.FileStreamStrategy)
lea edx,[ebx+8]
call CORINFO_HELP_ASSIGN_REF_EAX
mov ecx,ebx
mov [ebp-28],ecx
mov eax,[ecx+8]
mov ecx,eax
mov eax,[eax]
mov eax,[eax+3C]
call dword ptr [eax+8]
mov [ebp-24],eax
mov dword ptr [ebp-1C],0
mov dword ptr [ebp-18],0FC
push offset M00_L01
jmp short M00_L02
M00_L01:
mov dword ptr [ebp-18],0
jmp short M00_L06
M00_L02:
mov ecx,[ebp-28]
mov edx,[ecx+8]
mov [ebp-34],edx
test edx,edx
je short M00_L05
cmp dword ptr [edx],offset MT_System.IO.Strategies.SyncWindowsFileStreamStrategy
jne short M00_L04
mov eax,[edx+1C]
test eax,eax
je short M00_L05
test byte ptr [eax+8],1
jne short M00_L05
mov esi,[edx+1C]
mov eax,[esi+24]
test eax,eax
je short M00_L03
mov byte ptr [eax+8],1
M00_L03:
mov ebx,esi
cmp [ebx],bl
mov ecx,esi
mov edx,1
call dword ptr ds:[4EA9480]; System.Runtime.InteropServices.SafeHandle.InternalRelease(Boolean)
mov ecx,esi
call dword ptr ds:[88CF2E8]; System.GC.SuppressFinalize(System.Object)
jmp short M00_L05
M00_L04:
mov ecx,edx
mov edx,1
mov eax,[ebp-34]
mov eax,[eax]
mov eax,[eax+30]
call dword ptr [eax+10]
M00_L05:
mov ecx,[ebp-28]
call System.GC._SuppressFinalize(System.Object)
pop eax
jmp eax
M00_L06:
mov eax,[ebp-24]
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret 8
M00_L07:
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
call dword ptr ds:[0B469390]
int 3
M00_L08:
mov ecx,offset MT_System.IO.Strategies.AsyncWindowsFileStreamStrategy
call CORINFO_HELP_NEWSFAST
mov [ebp-2C],eax
push 3
push 1
push 1
push esi
push 0
push 0
push 0
push 0
mov ecx,eax
mov edx,edi
call dword ptr ds:[0A9D7750]; System.IO.Strategies.OSFileStreamStrategy..ctor(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, System.IO.FileOptions, Int64, System.Nullable`1)
mov edi,[ebp-2C]
jmp near ptr M00_L00
; Total bytes of code 417
```
```assembly
; System.Collections.Generic.Dictionary`2[[System.Int64, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].FindValue(Int64)
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,1C
mov esi,ecx
cmp dword ptr [esi+4],0
je near ptr M01_L08
mov edi,[esi+0C]
mov [ebp-24],edi
test edi,edi
jne short M01_L02
mov ecx,[ebp+8]
xor ecx,[ebp+0C]
mov [ebp-10],ecx
mov edi,[esi+4]
mov ebx,[edi+4]
mov eax,ecx
xor edx,edx
div ebx
cmp edx,ebx
jae near ptr M01_L10
mov edi,[edi+edx*4+8]
mov ebx,[esi+8]
xor eax,eax
dec edi
M01_L00:
mov edx,[ebx+4]
cmp edx,edi
jbe near ptr M01_L08
lea edi,[edi+edi*4]
lea edi,[ebx+edi*4+8]
cmp [edi+0C],ecx
jne short M01_L01
mov esi,edi
mov ecx,[esi]
mov esi,[esi+4]
xor ecx,[ebp+8]
xor esi,[ebp+0C]
or ecx,esi
je near ptr M01_L06
M01_L01:
mov edi,[edi+10]
inc eax
cmp edx,eax
jb near ptr M01_L09
mov ecx,[ebp-10]
jmp short M01_L00
M01_L02:
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
mov ecx,edi
call dword ptr ds:[4CF02D8]
mov ebx,eax
mov [ebp-14],ebx
mov ecx,[esi+4]
mov [ebp-28],ecx
mov edx,[ecx+4]
mov ecx,edx
mov eax,ebx
xor edx,edx
div ecx
cmp edx,ecx
jae short M01_L10
mov ecx,[ebp-28]
mov ecx,[ecx+edx*4+8]
mov esi,[esi+8]
xor eax,eax
mov [ebp-18],eax
dec ecx
M01_L03:
mov edx,[esi+4]
mov [ebp-1C],edx
cmp edx,ecx
jbe short M01_L08
lea ecx,[ecx+ecx*4]
lea ecx,[esi+ecx*4+8]
cmp [ecx+0C],ebx
jne short M01_L04
mov [ebp-20],ecx
mov edi,ecx
mov ebx,[edi]
push dword ptr [edi+4]
push ebx
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
mov ecx,[ebp-24]
call dword ptr ds:[4CF02DC]
test eax,eax
jne short M01_L05
mov ecx,[ebp-20]
M01_L04:
mov ecx,[ecx+10]
mov eax,[ebp-18]
inc eax
cmp [ebp-1C],eax
jb short M01_L09
mov [ebp-18],eax
mov ebx,[ebp-14]
jmp short M01_L03
M01_L05:
mov edi,[ebp-20]
M01_L06:
mov eax,edi
cmp [eax],al
lea eax,[edi+8]
M01_L07:
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret 8
M01_L08:
xor eax,eax
jmp short M01_L07
M01_L09:
call dword ptr ds:[8985888]
int 3
M01_L10:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 299
```
```assembly
; System.IO.Strategies.FileStreamHelpers.ValidateArguments(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, Int32, System.IO.FileOptions, Int64)
push ebp
mov ebp,esp
push edi
push esi
push ebx
push eax
mov edi,ecx
mov esi,edx
mov ebx,[ebp+1C]
mov eax,[ebp+10]
test edi,edi
je near ptr M02_L07
cmp dword ptr [edi+4],0
je near ptr M02_L07
mov ecx,[ebp+18]
and ecx,0FFFFFFEF
xor edi,edi
test esi,esi
jle near ptr M02_L17
cmp esi,6
jg near ptr M02_L17
test ebx,ebx
jle near ptr M02_L08
cmp ebx,3
jg near ptr M02_L08
test ecx,ecx
jl near ptr M02_L09
cmp ecx,7
jg near ptr M02_L09
M02_L00:
test edi,edi
jne near ptr M02_L10
test eax,eax
jne short M02_L06
M02_L01:
cmp dword ptr [ebp+14],0
jl near ptr M02_L12
cmp dword ptr [ebp+0C],0
jl near ptr M02_L13
test bl,2
jne short M02_L02
cmp esi,5
je near ptr M02_L14
cmp esi,1
je near ptr M02_L14
cmp esi,2
je near ptr M02_L14
cmp esi,6
je near ptr M02_L14
M02_L02:
test bl,1
je short M02_L03
cmp esi,6
je near ptr M02_L15
M02_L03:
cmp dword ptr [ebp+8],1
mov ecx,[ebp+0C]
sbb ecx,0
jge near ptr M02_L16
M02_L04:
test bl,2
je short M02_L05
mov ecx,82C7110
mov edx,4E059A0
call dword ptr ds:[0B441708]
M02_L05:
pop ecx
pop ebx
pop esi
pop edi
pop ebp
ret 18
M02_L06:
test eax,3FFBFFF
jne short M02_L11
jmp near ptr M02_L01
M02_L07:
mov ecx,18F88
mov edx,3544000
call CORINFO_HELP_STRCNS
mov edx,eax
mov ecx,edi
call dword ptr ds:[4EABC48]
int 3
M02_L08:
mov edi,82C49B8
jmp near ptr M02_L00
M02_L09:
mov edi,82C70C8
jmp near ptr M02_L00
M02_L10:
mov ecx,offset MT_System.ArgumentOutOfRangeException
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[88979F0]
push eax
mov edx,edi
mov ecx,esi
call dword ptr ds:[88A9870]
mov ecx,esi
call CORINFO_HELP_THROW
M02_L11:
mov ecx,offset MT_System.ArgumentOutOfRangeException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
mov ecx,1C89
mov edx,3544000
call CORINFO_HELP_STRCNS
mov esi,eax
call dword ptr ds:[88979F0]
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[88A9870]
mov ecx,ebx
call CORINFO_HELP_THROW
M02_L12:
mov ecx,1A4FE
mov edx,3544000
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8985930]
int 3
M02_L13:
mov ecx,1A850
mov edx,3544000
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8985930]
int 3
M02_L14:
mov ecx,offset MT_System.IO.FileMode
call CORINFO_HELP_NEWSFAST
mov edi,eax
call dword ptr ds:[8895810]
mov [ebp-10],eax
mov [edi+4],esi
mov ecx,offset MT_System.IO.FileAccess
call CORINFO_HELP_NEWSFAST
mov esi,eax
mov [esi+4],ebx
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
push esi
mov edx,edi
mov ecx,[ebp-10]
call dword ptr ds:[8891078]
mov esi,eax
mov ecx,1A10E
mov edx,3544000
call CORINFO_HELP_STRCNS
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[4EABBA0]
mov ecx,ebx
call CORINFO_HELP_THROW
M02_L15:
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[8895570]
mov edi,eax
mov ecx,1A10E
mov edx,3544000
call CORINFO_HELP_STRCNS
push eax
mov edx,edi
mov ecx,esi
call dword ptr ds:[4EABBA0]
mov ecx,esi
call CORINFO_HELP_THROW
M02_L16:
mov ecx,esi
mov edx,ebx
call dword ptr ds:[0A9D7618]
jmp near ptr M02_L04
M02_L17:
mov edi,82C70B0
jmp near ptr M02_L00
; Total bytes of code 597
```
```assembly
; System.IO.Strategies.OSFileStreamStrategy..ctor(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, System.IO.FileOptions, Int64, System.Nullable`1)
push ebp
mov ebp,esp
push edi
push esi
sub esp,20
xor eax,eax
mov [ebp-14],eax
mov [ebp-28],ecx
mov esi,[ebp+24]
mov edi,[ebp+20]
mov ecx,edx
call dword ptr ds:[0AF2D450]; System.IO.Path.GetFullPath(System.String)
mov ecx,eax
mov eax,[ebp-28]
mov [eax+20],edi
push edi
push dword ptr [ebp+1C]
push dword ptr [ebp+18]
push dword ptr [ebp+14]
push dword ptr [ebp+10]
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
mov edx,esi
call dword ptr ds:[0A9D1DF8]; Microsoft.Win32.SafeHandles.SafeFileHandle.Open(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, System.IO.FileOptions, Int64, System.Nullable`1)
mov ecx,[ebp-28]
lea edx,[ecx+1C]
call CORINFO_HELP_ASSIGN_REF_EAX
cmp esi,6
je short M03_L01
M03_L00:
mov ecx,[ebp-28]
lea eax,[ecx+14]
mov dword ptr [eax],0FFFFFFFF
mov dword ptr [eax+4],0FFFFFFFF
jmp short M03_L02
M03_L01:
mov ecx,[ecx+1C]
cmp [ecx],ecx
call dword ptr ds:[0A9D1D98]; Microsoft.Win32.SafeHandles.SafeFileHandle.get_CanSeek()
test eax,eax
je short M03_L00
mov ecx,[ebp-28]
mov ecx,[ecx+1C]
cmp [ecx],ecx
call dword ptr ds:[0A9D1EA0]
mov ecx,[ebp-28]
lea esi,[ecx+0C]
mov [esi],eax
mov [esi+4],edx
lea esi,[ecx+14]
mov [esi],eax
mov [esi+4],edx
jmp short M03_L02
mov ecx,[ebp-28]
mov ecx,[ecx+1C]
cmp [ecx],ecx
call dword ptr ds:[4E5BB94]; System.Runtime.InteropServices.SafeHandle.Dispose()
xor eax,eax
mov ecx,[ebp-28]
mov [ecx+1C],eax
call CORINFO_HELP_RETHROW
int 3
M03_L02:
lea esp,[ebp-8]
pop esi
pop edi
pop ebp
ret 20
; Total bytes of code 189
```
```assembly
; System.IO.Strategies.FileStreamHelpers.WrapIfDerivedType(System.IO.FileStream, System.IO.Strategies.FileStreamStrategy)
push edi
push esi
push ebx
mov esi,ecx
mov edi,edx
cmp dword ptr [esi],offset MT_System.IO.FileStream
jne short M04_L00
mov eax,edi
pop ebx
pop esi
pop edi
ret
M04_L00:
mov ecx,offset MT_System.IO.Strategies.DerivedFileStreamStrategy
call CORINFO_HELP_NEWSFAST
mov ebx,eax
push edi
mov ecx,ebx
mov edx,esi
call dword ptr ds:[0A9D7B70]
mov eax,ebx
pop ebx
pop esi
pop edi
ret
; Total bytes of code 50
```
```assembly
; System.Runtime.InteropServices.SafeHandle.InternalRelease(Boolean)
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,18
xor eax,eax
mov [ebp-20],eax
mov esi,ecx
mov edi,edx
M05_L00:
mov ebx,[esi+8]
mov [ebp-10],edi
mov eax,edi
movzx eax,al
mov [ebp-1C],eax
test eax,eax
je short M05_L01
test bl,2
je short M05_L01
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M05_L01:
mov edx,ebx
and edx,0FFFFFFFC
mov [ebp-18],edx
test edx,edx
je near ptr M05_L07
mov ecx,ebx
and ecx,0FFFFFFFD
cmp ecx,4
jne short M05_L02
cmp byte ptr [esi+0C],0
je short M05_L02
mov ecx,esi
mov [ebp-20],ecx
mov ecx,[esi]
mov ecx,[ecx+28]
mov [ebp-24],ecx
mov ecx,[ebp-20]
mov edi,[ebp-24]
call dword ptr [edi+10]
test eax,eax
sete al
movzx eax,al
jmp short M05_L03
M05_L02:
xor ecx,ecx
mov eax,ecx
M05_L03:
movzx ecx,al
mov [ebp-14],ecx
lea eax,[ebx-4]
cmp dword ptr [ebp-18],4
jne short M05_L04
or eax,1
M05_L04:
cmp dword ptr [ebp-1C],0
je short M05_L05
or eax,2
M05_L05:
lea edx,[esi+8]
mov ecx,eax
mov eax,ebx
lock cmpxchg [edx],ecx
cmp eax,ebx
movzx edi,byte ptr [ebp-10]
jne near ptr M05_L00
cmp dword ptr [ebp-14],0
je short M05_L06
call System.Runtime.InteropServices.Marshal.GetLastPInvokeError()
mov edi,eax
mov ecx,esi
mov eax,[esi]
mov eax,[eax+28]
call dword ptr [eax+1C]
mov ecx,edi
call System.Runtime.InteropServices.Marshal.SetLastPInvokeError(Int32)
M05_L06:
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M05_L07:
mov ecx,esi
call dword ptr ds:[8985708]
int 3
; Total bytes of code 214
```
```assembly
; System.GC.SuppressFinalize(System.Object)
push ebp
mov ebp,esp
test ecx,ecx
je short M06_L00
call System.GC._SuppressFinalize(System.Object)
pop ebp
ret
M06_L00:
mov ecx,1337
mov edx,3544000
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8925AF8]
int 3
; Total bytes of code 38
```
### Compare Jit Disasm
```assembly
; System.IO.Tests.Perf_FileStream.OpenClose(Int64, System.IO.FileOptions)
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,28
vxorps xmm4,xmm4,xmm4
vmovdqu xmmword ptr [ebp-28],xmm4
xor eax,eax
mov [ebp-18],eax
mov [ebp-14],eax
mov esi,edx
mov ecx,[ecx+4]
cmp [ecx],cl
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
call dword ptr ds:[0AC2F2E8]; System.Collections.Generic.Dictionary`2[[System.Int64, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].FindValue(Int64)
test eax,eax
je near ptr M00_L07
mov edi,[eax]
mov ecx,offset MT_System.IO.FileStream
call CORINFO_HELP_NEWFAST
mov ebx,eax
push 1
push 1
push 1000
push esi
push 0
push 0
mov ecx,edi
mov edx,3
call dword ptr ds:[0A247600]; System.IO.Strategies.FileStreamHelpers.ValidateArguments(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, Int32, System.IO.FileOptions, Int64)
test esi,40000000
jne near ptr M00_L08
mov ecx,offset MT_System.IO.Strategies.SyncWindowsFileStreamStrategy
call CORINFO_HELP_NEWSFAST
mov [ebp-30],eax
push 3
push 1
push 1
push esi
push 0
push 0
push 0
push 0
mov ecx,eax
mov edx,edi
call dword ptr ds:[0A247750]; System.IO.Strategies.OSFileStreamStrategy..ctor(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, System.IO.FileOptions, Int64, System.Nullable`1)
mov edi,[ebp-30]
M00_L00:
mov ecx,offset MT_System.IO.Strategies.BufferedFileStreamStrategy
call CORINFO_HELP_NEWSFAST
lea edx,[eax+8]
call CORINFO_HELP_ASSIGN_REF_EDI
mov dword ptr [eax+10],1000
mov ecx,ebx
mov edx,eax
call dword ptr ds:[0A2475D0]; System.IO.Strategies.FileStreamHelpers.WrapIfDerivedType(System.IO.FileStream, System.IO.Strategies.FileStreamStrategy)
lea edx,[ebx+8]
call CORINFO_HELP_ASSIGN_REF_EAX
mov ecx,ebx
mov [ebp-28],ecx
mov eax,[ecx+8]
mov ecx,eax
mov eax,[eax]
mov eax,[eax+3C]
call dword ptr [eax+8]
mov [ebp-24],eax
mov dword ptr [ebp-1C],0
mov dword ptr [ebp-18],0FC
push offset M00_L01
jmp short M00_L02
M00_L01:
mov dword ptr [ebp-18],0
jmp short M00_L06
M00_L02:
mov ecx,[ebp-28]
mov edx,[ecx+8]
mov [ebp-34],edx
test edx,edx
je short M00_L05
cmp dword ptr [edx],offset MT_System.IO.Strategies.SyncWindowsFileStreamStrategy
jne short M00_L04
mov eax,[edx+1C]
test eax,eax
je short M00_L05
test byte ptr [eax+8],1
jne short M00_L05
mov esi,[edx+1C]
mov eax,[esi+24]
test eax,eax
je short M00_L03
mov byte ptr [eax+8],1
M00_L03:
mov ebx,esi
cmp [ebx],bl
mov ecx,esi
mov edx,1
call dword ptr ds:[7B79480]; System.Runtime.InteropServices.SafeHandle.InternalRelease(Boolean)
mov ecx,esi
call dword ptr ds:[81AF2E8]; System.GC.SuppressFinalize(System.Object)
jmp short M00_L05
M00_L04:
mov ecx,edx
mov edx,1
mov eax,[ebp-34]
mov eax,[eax]
mov eax,[eax+30]
call dword ptr [eax+10]
M00_L05:
mov ecx,[ebp-28]
call System.GC._SuppressFinalize(System.Object)
pop eax
jmp eax
M00_L06:
mov eax,[ebp-24]
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret 8
M00_L07:
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
call dword ptr ds:[0AD097C8]
int 3
M00_L08:
mov ecx,offset MT_System.IO.Strategies.AsyncWindowsFileStreamStrategy
call CORINFO_HELP_NEWSFAST
mov [ebp-2C],eax
push 3
push 1
push 1
push esi
push 0
push 0
push 0
push 0
mov ecx,eax
mov edx,edi
call dword ptr ds:[0A247750]; System.IO.Strategies.OSFileStreamStrategy..ctor(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, System.IO.FileOptions, Int64, System.Nullable`1)
mov edi,[ebp-2C]
jmp near ptr M00_L00
; Total bytes of code 417
```
```assembly
; System.Collections.Generic.Dictionary`2[[System.Int64, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].FindValue(Int64)
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,1C
mov esi,ecx
cmp dword ptr [esi+4],0
je near ptr M01_L08
mov edi,[esi+0C]
mov [ebp-24],edi
test edi,edi
jne short M01_L02
mov ecx,[ebp+8]
xor ecx,[ebp+0C]
mov [ebp-10],ecx
mov edi,[esi+4]
mov ebx,[edi+4]
mov eax,ecx
xor edx,edx
div ebx
cmp edx,ebx
jae near ptr M01_L10
mov edi,[edi+edx*4+8]
mov ebx,[esi+8]
xor eax,eax
dec edi
M01_L00:
mov edx,[ebx+4]
cmp edx,edi
jbe near ptr M01_L08
lea edi,[edi+edi*4]
lea edi,[ebx+edi*4+8]
cmp [edi+0C],ecx
jne short M01_L01
mov esi,edi
mov ecx,[esi]
mov esi,[esi+4]
xor ecx,[ebp+8]
xor esi,[ebp+0C]
or ecx,esi
je near ptr M01_L06
M01_L01:
mov edi,[edi+10]
inc eax
cmp edx,eax
jb near ptr M01_L09
mov ecx,[ebp-10]
jmp short M01_L00
M01_L02:
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
mov ecx,edi
call dword ptr ds:[9702DC]
mov ebx,eax
mov [ebp-14],ebx
mov ecx,[esi+4]
mov [ebp-28],ecx
mov edx,[ecx+4]
mov ecx,edx
mov eax,ebx
xor edx,edx
div ecx
cmp edx,ecx
jae short M01_L10
mov ecx,[ebp-28]
mov ecx,[ecx+edx*4+8]
mov esi,[esi+8]
xor eax,eax
mov [ebp-18],eax
dec ecx
M01_L03:
mov edx,[esi+4]
mov [ebp-1C],edx
cmp edx,ecx
jbe short M01_L08
lea ecx,[ecx+ecx*4]
lea ecx,[esi+ecx*4+8]
cmp [ecx+0C],ebx
jne short M01_L04
mov [ebp-20],ecx
mov edi,ecx
mov ebx,[edi]
push dword ptr [edi+4]
push ebx
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
mov ecx,[ebp-24]
call dword ptr ds:[9702E0]
test eax,eax
jne short M01_L05
mov ecx,[ebp-20]
M01_L04:
mov ecx,[ecx+10]
mov eax,[ebp-18]
inc eax
cmp [ebp-1C],eax
jb short M01_L09
mov [ebp-18],eax
mov ebx,[ebp-14]
jmp short M01_L03
M01_L05:
mov edi,[ebp-20]
M01_L06:
mov eax,edi
cmp [eax],al
lea eax,[edi+8]
M01_L07:
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret 8
M01_L08:
xor eax,eax
jmp short M01_L07
M01_L09:
call dword ptr ds:[8265888]
int 3
M01_L10:
call CORINFO_HELP_RNGCHKFAIL
int 3
; Total bytes of code 299
```
```assembly
; System.IO.Strategies.FileStreamHelpers.ValidateArguments(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, Int32, System.IO.FileOptions, Int64)
push ebp
mov ebp,esp
push edi
push esi
push ebx
push eax
mov edi,ecx
mov esi,edx
mov ebx,[ebp+1C]
mov eax,[ebp+10]
test edi,edi
je near ptr M02_L07
cmp dword ptr [edi+4],0
je near ptr M02_L07
mov ecx,[ebp+18]
and ecx,0FFFFFFEF
xor edi,edi
test esi,esi
jle near ptr M02_L17
cmp esi,6
jg near ptr M02_L17
test ebx,ebx
jle near ptr M02_L08
cmp ebx,3
jg near ptr M02_L08
test ecx,ecx
jl near ptr M02_L09
cmp ecx,7
jg near ptr M02_L09
M02_L00:
test edi,edi
jne near ptr M02_L10
test eax,eax
jne short M02_L06
M02_L01:
cmp dword ptr [ebp+14],0
jl near ptr M02_L12
cmp dword ptr [ebp+0C],0
jl near ptr M02_L13
test bl,2
jne short M02_L02
cmp esi,5
je near ptr M02_L14
cmp esi,1
je near ptr M02_L14
cmp esi,2
je near ptr M02_L14
cmp esi,6
je near ptr M02_L14
M02_L02:
test bl,1
je short M02_L03
cmp esi,6
je near ptr M02_L15
M02_L03:
cmp dword ptr [ebp+8],1
mov ecx,[ebp+0C]
sbb ecx,0
jge near ptr M02_L16
M02_L04:
test bl,2
je short M02_L05
mov ecx,7BA7F9C
mov edx,9C59A0
call dword ptr ds:[0ACA1E40]
M02_L05:
pop ecx
pop ebx
pop esi
pop edi
pop ebp
ret 18
M02_L06:
test eax,3FFBFFF
jne short M02_L11
jmp near ptr M02_L01
M02_L07:
mov ecx,18F88
mov edx,6A4000
call CORINFO_HELP_STRCNS
mov edx,eax
mov ecx,edi
call dword ptr ds:[7B7BC48]
int 3
M02_L08:
mov edi,7BA57F0
jmp near ptr M02_L00
M02_L09:
mov edi,7BA7F54
jmp near ptr M02_L00
M02_L10:
mov ecx,offset MT_System.ArgumentOutOfRangeException
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[81779F0]
push eax
mov edx,edi
mov ecx,esi
call dword ptr ds:[8189870]
mov ecx,esi
call CORINFO_HELP_THROW
M02_L11:
mov ecx,offset MT_System.ArgumentOutOfRangeException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
mov ecx,1C89
mov edx,6A4000
call CORINFO_HELP_STRCNS
mov esi,eax
call dword ptr ds:[81779F0]
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[8189870]
mov ecx,ebx
call CORINFO_HELP_THROW
M02_L12:
mov ecx,1A4FE
mov edx,6A4000
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8265930]
int 3
M02_L13:
mov ecx,1A850
mov edx,6A4000
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8265930]
int 3
M02_L14:
mov ecx,offset MT_System.IO.FileMode
call CORINFO_HELP_NEWSFAST
mov edi,eax
call dword ptr ds:[8175810]
mov [ebp-10],eax
mov [edi+4],esi
mov ecx,offset MT_System.IO.FileAccess
call CORINFO_HELP_NEWSFAST
mov esi,eax
mov [esi+4],ebx
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov ebx,eax
push esi
mov edx,edi
mov ecx,[ebp-10]
call dword ptr ds:[8171078]
mov esi,eax
mov ecx,1A10E
mov edx,6A4000
call CORINFO_HELP_STRCNS
push eax
mov edx,esi
mov ecx,ebx
call dword ptr ds:[7B7BBA0]
mov ecx,ebx
call CORINFO_HELP_THROW
M02_L15:
mov ecx,offset MT_System.ArgumentException
call CORINFO_HELP_NEWSFAST
mov esi,eax
call dword ptr ds:[8175570]
mov edi,eax
mov ecx,1A10E
mov edx,6A4000
call CORINFO_HELP_STRCNS
push eax
mov edx,edi
mov ecx,esi
call dword ptr ds:[7B7BBA0]
mov ecx,esi
call CORINFO_HELP_THROW
M02_L16:
mov ecx,esi
mov edx,ebx
call dword ptr ds:[0A247618]
jmp near ptr M02_L04
M02_L17:
mov edi,7BA7F3C
jmp near ptr M02_L00
; Total bytes of code 597
```
```assembly
; System.IO.Strategies.OSFileStreamStrategy..ctor(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, System.IO.FileOptions, Int64, System.Nullable`1)
push ebp
mov ebp,esp
push edi
push esi
sub esp,20
xor eax,eax
mov [ebp-14],eax
mov [ebp-28],ecx
mov esi,[ebp+24]
mov edi,[ebp+20]
mov ecx,edx
call dword ptr ds:[0A79D450]; System.IO.Path.GetFullPath(System.String)
mov ecx,eax
mov eax,[ebp-28]
mov [eax+20],edi
push edi
push dword ptr [ebp+1C]
push dword ptr [ebp+18]
push dword ptr [ebp+14]
push dword ptr [ebp+10]
push dword ptr [ebp+0C]
push dword ptr [ebp+8]
mov edx,esi
call dword ptr ds:[0A241DF8]; Microsoft.Win32.SafeHandles.SafeFileHandle.Open(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, System.IO.FileOptions, Int64, System.Nullable`1)
mov ecx,[ebp-28]
lea edx,[ecx+1C]
call CORINFO_HELP_ASSIGN_REF_EAX
cmp esi,6
je short M03_L01
M03_L00:
mov ecx,[ebp-28]
lea eax,[ecx+14]
mov dword ptr [eax],0FFFFFFFF
mov dword ptr [eax+4],0FFFFFFFF
jmp short M03_L02
M03_L01:
mov ecx,[ecx+1C]
cmp [ecx],ecx
call dword ptr ds:[0A241D98]; Microsoft.Win32.SafeHandles.SafeFileHandle.get_CanSeek()
test eax,eax
je short M03_L00
mov ecx,[ebp-28]
mov ecx,[ecx+1C]
cmp [ecx],ecx
call dword ptr ds:[0A241EA0]
mov ecx,[ebp-28]
lea esi,[ecx+0C]
mov [esi],eax
mov [esi+4],edx
lea esi,[ecx+14]
mov [esi],eax
mov [esi+4],edx
jmp short M03_L02
mov ecx,[ebp-28]
mov ecx,[ecx+1C]
cmp [ecx],ecx
call dword ptr ds:[2F0BB94]; System.Runtime.InteropServices.SafeHandle.Dispose()
xor eax,eax
mov ecx,[ebp-28]
mov [ecx+1C],eax
call CORINFO_HELP_RETHROW
int 3
M03_L02:
lea esp,[ebp-8]
pop esi
pop edi
pop ebp
ret 20
; Total bytes of code 189
```
```assembly
; System.IO.Strategies.FileStreamHelpers.WrapIfDerivedType(System.IO.FileStream, System.IO.Strategies.FileStreamStrategy)
push edi
push esi
push ebx
mov esi,ecx
mov edi,edx
cmp dword ptr [esi],offset MT_System.IO.FileStream
jne short M04_L00
mov eax,edi
pop ebx
pop esi
pop edi
ret
M04_L00:
mov ecx,offset MT_System.IO.Strategies.DerivedFileStreamStrategy
call CORINFO_HELP_NEWSFAST
mov ebx,eax
push edi
mov ecx,ebx
mov edx,esi
call dword ptr ds:[0A247B70]
mov eax,ebx
pop ebx
pop esi
pop edi
ret
; Total bytes of code 50
```
```assembly
; System.Runtime.InteropServices.SafeHandle.InternalRelease(Boolean)
push ebp
mov ebp,esp
push edi
push esi
push ebx
sub esp,18
xor eax,eax
mov [ebp-20],eax
mov esi,ecx
mov edi,edx
M05_L00:
mov ebx,[esi+8]
mov [ebp-10],edi
mov eax,edi
movzx eax,al
mov [ebp-1C],eax
test eax,eax
je short M05_L01
test bl,2
je short M05_L01
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M05_L01:
mov edx,ebx
and edx,0FFFFFFFC
mov [ebp-18],edx
test edx,edx
je near ptr M05_L07
mov ecx,ebx
and ecx,0FFFFFFFD
cmp ecx,4
jne short M05_L02
cmp byte ptr [esi+0C],0
je short M05_L02
mov ecx,esi
mov [ebp-20],ecx
mov ecx,[esi]
mov ecx,[ecx+28]
mov [ebp-24],ecx
mov ecx,[ebp-20]
mov edi,[ebp-24]
call dword ptr [edi+10]
test eax,eax
sete al
movzx eax,al
jmp short M05_L03
M05_L02:
xor ecx,ecx
mov eax,ecx
M05_L03:
movzx ecx,al
mov [ebp-14],ecx
lea eax,[ebx-4]
cmp dword ptr [ebp-18],4
jne short M05_L04
or eax,1
M05_L04:
cmp dword ptr [ebp-1C],0
je short M05_L05
or eax,2
M05_L05:
lea edx,[esi+8]
mov ecx,eax
mov eax,ebx
lock cmpxchg [edx],ecx
cmp eax,ebx
movzx edi,byte ptr [ebp-10]
jne near ptr M05_L00
cmp dword ptr [ebp-14],0
je short M05_L06
call System.Runtime.InteropServices.Marshal.GetLastPInvokeError()
mov edi,eax
mov ecx,esi
mov eax,[esi]
mov eax,[eax+28]
call dword ptr [eax+1C]
mov ecx,edi
call System.Runtime.InteropServices.Marshal.SetLastPInvokeError(Int32)
M05_L06:
lea esp,[ebp-0C]
pop ebx
pop esi
pop edi
pop ebp
ret
M05_L07:
mov ecx,esi
call dword ptr ds:[8265708]
int 3
; Total bytes of code 214
```
```assembly
; System.GC.SuppressFinalize(System.Object)
push ebp
mov ebp,esp
test ecx,ecx
je short M06_L00
call System.GC._SuppressFinalize(System.Object)
pop ebp
ret
M06_L00:
mov ecx,1337
mov edx,6A4000
call CORINFO_HELP_STRCNS
mov ecx,eax
call dword ptr ds:[8205AF8]
int 3
; Total bytes of code 38
```
#### System.IO.Tests.Perf_FileStream.SeekBackward(fileSize: 1024, options: 0)
```log
```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 42.86724157559199 > 38.41953582425777.
IsChangePoint: Marked as a change because one of 1/25/2023 9:58:39 PM, 2/10/2023 8:33:51 PM, 2/14/2023 7:27:15 AM falls between 2/5/2023 7:19:43 PM and 2/14/2023 7:27:15 AM.
IsRegressionStdDev: Marked as regression because -6.9121829571546956 (T) = (0 -41434.372314241955) / Math.Sqrt((6494036.28791439 / (40)) + (1668699.2372925673 / (15))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (40) + (15) - 2, .025) and -0.09560112691794584 = (37818.84784182515 - 41434.372314241955) / 37818.84784182515 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
```#### System.IO.Tests.Perf_FileStream.Read(fileSize: 1048576, userBufferSize: 512, options: 0)
```log
```
### Description of detection logic
```IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsRegressionBase: Marked as regression because the compare was 5% greater than the baseline, and the value was not too small.
IsRegressionChecked: Marked as regression because the three check build points were 0.05 greater than the baseline.
IsRegressionWindowed: Marked as regression because 585.8821943681318 > 540.5832913306452.
IsChangePoint: Marked as a change because one of 1/17/2023 5:52:57 PM, 2/11/2023 1:50:45 AM, 2/14/2023 7:27:15 AM falls between 2/5/2023 7:19:43 PM and 2/14/2023 7:27:15 AM.
IsRegressionStdDev: Marked as regression because -6.350195596575055 (T) = (0 -571701.4845285814) / Math.Sqrt((923100106.1308861 / (41)) + (294383845.91113544 / (14))) is less than -2.005745995316835 = MathNet.Numerics.Distributions.StudentT.InvCDF(0, 1, (41) + (14) - 2, .025) and -0.07909163746823707 = (529798.8277157873 - 571701.4845285814) / 529798.8277157873 is less than -0.05.
IsImprovementBase: Marked as not an improvement because the compare was not 5% less than the baseline, or the value was too small.
IsChangeEdgeDetector: Marked not as a regression because Edge Detector said so.
```
### 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
Regressions in System.Net.Http.Tests.SocketsHttpHandlerPerfTest
Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md
Payloads
Baseline Compare
Run Information
Regressions in System.IO.Tests.Perf_RandomAccess
Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md
Payloads
Baseline Compare