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cancername

•Created by cancername on 6/8/2023 in #help

❔ dotnet-trace: Read past end of file

What could be causing this?

$ /home/user/.dotnet/tools/dotnet-trace collect -p 134867
No profile or providers specified, defaulting to trace profile 'cpu-sampling'

Provider Name                           Keywords            Level               Enabled By
Microsoft-DotNETCore-SampleProfiler     0x0000F00000000000  Informational(4)    --profile 
Microsoft-Windows-DotNETRuntime         0x00000014C14FCCBD  Informational(4)    --profile 

Process        : /home/user/dotnet/dotnet
Output File    : /home/user/dotnet_20230608_195630.nettrace

[00:00:01:32]    Recording trace 16.386   (MB)
Press <Enter> or <Ctrl+C> to exit...

Trace completed.

$ /home/user/.dotnet/tools/dotnet-trace collect -p 134867
No profile or providers specified, defaulting to trace profile 'cpu-sampling'

Provider Name                           Keywords            Level               Enabled By
Microsoft-DotNETCore-SampleProfiler     0x0000F00000000000  Informational(4)    --profile 
Microsoft-Windows-DotNETRuntime         0x00000014C14FCCBD  Informational(4)    --profile 

Process        : /home/user/dotnet/dotnet
Output File    : /home/user/dotnet_20230608_195630.nettrace

[00:00:01:32]    Recording trace 16.386   (MB)
Press <Enter> or <Ctrl+C> to exit...

Trace completed.

$ /home/user/.dotnet/tools/dotnet-trace report dotnet_20230608_195630.nettrace topN -n 2
[ERROR] System.Exception: Read past end of stream.
   at FastSerialization.IOStreamStreamReader.Fill(Int32 minimum)
   at FastSerialization.MemoryStreamReader.ReadByte()
   at FastSerialization.Deserializer.ReadObject()
   at Microsoft.Diagnostics.Tracing.EventPipeEventSource.Process()
   at Microsoft.Diagnostics.Tracing.Etlx.TraceLog.CopyRawEvents(TraceEventDispatcher rawEvents, IStreamWriter writer)
   at Microsoft.Diagnostics.Tracing.Etlx.TraceLog.<>c__DisplayClass120_0.<FastSerialization.IFastSerializable.ToStream>b__0()
   at FastSerialization.DeferedRegion.Write(Serializer serializer, Action toStream)
   at Microsoft.Diagnostics.Tracing.Etlx.TraceLog.FastSerialization.IFastSerializable.ToStream(Serializer serializer)
   at FastSerialization.Serializer.WriteObjectData(IFastSerializable obj, Tags beginTag)
   at FastSerialization.Serializer.WriteObjectRef(IFastSerializable obj, Boolean defered)
   at FastSerialization.Serializer.Write(IFastSerializable obj)
   at FastSerialization.Serializer..ctor(IStreamWriter writer, IFastSerializable entryObject)
   at FastSerialization.Serializer..ctor(String filePath, IFastSerializable entryObject)
  (a few more lines)

$ /home/user/.dotnet/tools/dotnet-trace report dotnet_20230608_195630.nettrace topN -n 2
[ERROR] System.Exception: Read past end of stream.
   at FastSerialization.IOStreamStreamReader.Fill(Int32 minimum)
   at FastSerialization.MemoryStreamReader.ReadByte()
   at FastSerialization.Deserializer.ReadObject()
   at Microsoft.Diagnostics.Tracing.EventPipeEventSource.Process()
   at Microsoft.Diagnostics.Tracing.Etlx.TraceLog.CopyRawEvents(TraceEventDispatcher rawEvents, IStreamWriter writer)
   at Microsoft.Diagnostics.Tracing.Etlx.TraceLog.<>c__DisplayClass120_0.<FastSerialization.IFastSerializable.ToStream>b__0()
   at FastSerialization.DeferedRegion.Write(Serializer serializer, Action toStream)
   at Microsoft.Diagnostics.Tracing.Etlx.TraceLog.FastSerialization.IFastSerializable.ToStream(Serializer serializer)
   at FastSerialization.Serializer.WriteObjectData(IFastSerializable obj, Tags beginTag)
   at FastSerialization.Serializer.WriteObjectRef(IFastSerializable obj, Boolean defered)
   at FastSerialization.Serializer.Write(IFastSerializable obj)
   at FastSerialization.Serializer..ctor(IStreamWriter writer, IFastSerializable entryObject)
   at FastSerialization.Serializer..ctor(String filePath, IFastSerializable entryObject)
  (a few more lines)

6 replies

CC#

•Created by cancername on 6/7/2023 in #help

✅ gprof-like C# profilers?

Hello, I am in need of a simple C# profiler. It doesn't need to be fancy, just needs to display which functions consume the most time, like gprof would. I have googled for some, but there's a lot of them and I don't know which to choose. Thanks in advance.

9 replies

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