https://www.alexander-koepke.de/categories/til/Recent content in TIL onHugode-deWed, 18 Oct 2023 00:00:00 +0000https://www.alexander-koepke.de/post/2023-10-18-til-dotnet-stack-size/Wed, 18 Oct 2023 00:00:00 +0000https://www.alexander-koepke.de/post/2023-10-18-til-dotnet-stack-size/<p><strong>T</strong>oday <strong>I</strong> <strong>L</strong>earned that the default stack size for threads in dotnet e.g. the ThreadPool threads is OS dependent. On Windows it is <em>1.5 MiB</em>, on Linux, MacOs it is dependent on the concrete OS version. To determine the actual default thread size you have to run <code>ulimit -s</code>. For Ubuntu 22.04 it is <em>8192 bytes</em> and for macOS 14.2 it is <em>8176 bytes</em>.</p> <p>It is possible to configure the default stack size via environment variable e.g. to set the stack to 1.5Mib set <code>DOTNET_DefaultStackSize=180000</code> (the value is interpreted as hex).</p>