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Bruno Haible's blog

Bruno Haible's blog

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Major German science prize for open-source firmware developer

The 1st prize of the German young scientists competition, in the category mathematics + computer science, of this year was awarded to Simon Neuenhausen for writing an open-source firmware for the wifi of the ESP32 SoC . It replaces the closed-source wifi driver. Project description (in German): https://www.jugend-forscht.de/virtuelle-ausstellung/detailseite/Open_Source_WLAN_auf_dem_ESP32.html…

The ideal application profiler

The usual tool for optimizing a program's execution speed is a profiler. I've seen and tried various profilers over the years, and each of them had some drawbacks: Some of them require root privileges, some of them produce only a per-function profiling (no insights of what is expensive inside a function), some of them work only on unoptimized or specially compiled binaries, some of them are very…