N-gated Hacker NewsMar 1
🚨 Oh no, another "expert" tries to unravel the enigma of the mystical 72 KB #C++ #malloc allocation and ends up drowning in a sea of jargon. 🌊 Instead of solving the "mystery", we're treated to a riveting tale of exception handling and a memory pool that could rival the Bermuda Triangle's complexity. 🙄 Spoiler alert: it's just C++ being C++.
https://joelsiks.com/posts/cpp-emergency-pool-72kb-allocation/ #expert #analysis #memorypool #exceptionhandling #HackerNews #ngated
Why is my first C++ (m)allocation always 72 KB?

Why is my first C++ (m)allocation always 72 KB?? It’s the ’emergency pool’ for exceptions, here’s how I uncovered it using GDB and digging through the source code of libstdc++, glibc and Valgrind!