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Large Object Heap Churn in .NET

 2 years ago
source link: https://www.youtube.com/watch?v=-qtT1wWJi3A
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Large Object Heap Churn in .NET

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Nov 12, 2021

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Mike Rousos is back again! This time Mike shows us how to inspect and diagnose large Object Heap churn in .NET

[00:00] - Introduction [01:36] - What tools can we use to look into performance? [03:35] - Diagnostics Demo in Azure App Service [08:50] - Collecting diagnostic traces using dotnet trace [12:56] - Reviewing stats in Perfview [19:56] - Inspecting GC Heap allocations [22:16] - Reducing allocations ArrayPool

dotnet-trace performance analysis utility https://docs.microsoft.com/dotnet/cor...

What is Application Insights? https://docs.microsoft.com/azure/azur...

Analyze CPU usage without debugging in the Performance Profiler https://docs.microsoft.com/visualstud...

Kudu service overview https://docs.microsoft.com/azure/app-... 🙋‍♀️🙋‍♂️ Get your questions answered on the Microsoft Q&A for .NET: https://aka.ms/dotnet-qa

🏫 Learn C#, F#, and .NET with free self-guided learning from Microsoft Learn: https://aka.ms/learndotnet

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What about tips'n'tricks for cases when one's code uses Memory<T> ? I played with it recently and the worst part is - such memory allocations "desappear" from observable stats in VS (2019). You see OS reports 4 Gigs is consumed by you app, but VS profile shows bogus few KBs on heap.

5 days ago

Do the returned buffers get cleaned/scrubbed?

9 days ago


report

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