Joel Siks personal blog
Why is the 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!
- Points
- 131
- HN comments
- 36
- Submissions
- 1
- Cited by
- 0 commenters
Software EngineeringSystems & Performance2026
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Mar 1, 2026 | Why is the first C++ (m)allocation always 72 KB? by joelsiks | 131 | 36 |
