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This is the eleventh part of the Custom memory allocation series. For your convenience you can find other parts in the table of contents in Part 1 — Allocating object on a stack I presented some results suggesting that UnsafeList is faster than the array or List< T> in .NET. Today it’s time to run … Continue reading Custom memory allocation in C# Part 11 — Benchmarking UnsafeList
This is the tenth part of the Custom memory allocation series. For your convenience you can find other parts in the table of contents in Part 1 — Allocating object on a stack I had .NET Core 2.1.103 x64 installed and I wanted to hijack new with the code from the last post. Unfortunately, it … Continue reading Custom memory allocation in C# Part 10 — Hijacking new in .NET Core
This is the ninth part of the Custom memory allocation series. For your convenience you can find other parts in the table of contents in Part 1 — Allocating object on a stack We already hijacked new in C#. Last time we did this for 32-bit applications, today we will modify the code to support … Continue reading Custom memory allocation in C# Part 9 — Hijacking new in x64
Let’s start with the following code: You throw exception as soon as your form is loaded, however, catch block is not executed. What happens? Initially I though this is out of band exception which is thrown on another thread. But after some debugging the reason is much simpler. WinForms provide special event handler for unhandled … Continue reading Exception propagation in WinForms
It sometimes happens that your EMR job crashes or hangs indefinitely with no meaningful log. You can try to capture memory dump but it is not very useful when your cluster machines have hundreds gigabytes of memory each. Below are “fixes” which worked for me. If it just crashes with lost slave or lost task, … Continue reading Random notes from crashing and hanging EMR Spark job