bloaty
espthernet
bloaty | espthernet | |
---|---|---|
15 | 1 | |
4,548 | 245 | |
0.7% | - | |
5.3 | 10.0 | |
about 1 month ago | almost 7 years ago | |
C++ | C | |
Apache License 2.0 | GNU General Public License v3.0 or later |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
bloaty
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ESP32-C3 Wireless Adventure: A Comprehensive Guide to IoT [pdf]
ESP32s aren't really ‘lower level’ in the sense that anyone is likely to write assembly code for them (compared to, say, 8051 or PIC), other than maybe some driver author at Espressif. The big win from using RISC-V, other than name recognition, is mainstream compiler support (which is nothing to sneeze at, especially when it's largely funded by someone else).
When I worked on Matter¹, the Xtensa and RISC-V versions were basically fungible from the software point of view. (And really, so were other vendors' various ARMs.) We did find that Bloaty McBloatface² didn't support Xtensa, so I had to write an alternative.
¹ https://github.com/project-chip/connectedhomeip/
² https://github.com/google/bloaty
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How to make smaller C and C++ binaries
I’ve gotten good insight into what takes up space in binaries by profiling with Bloaty (https://github.com/google/bloaty). My last profiling session showed that clang’s ThinLTO was inlining too aggressively in some cases, causing functions that should be tiny to be 75 kB+.
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Reducing Tailscale’s binary size on macOS
I'm surprised they didn't go for the binary size analysis tools like
https://github.com/google/bloaty
Or goweight.
- C extension making everything bigger
- Template code bloat - how to measure, and what does that even mean?
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Do you usually use periphery (or other code optimization tools) so that your final built release app is fast/ small?
I was able to shave a few % off our app binary with Bloaty. It’s pretty hard to use but once you figure out how to make regular expressions to properly classify things from your codebase, you can really visually analyze what your binary is composed of.
- how to compare two .so(shared lib) files for size
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Debugging/optimizing/diagnostic tools for C++
Bloaty
- Bloaty McBloatface: a size profiler for binaries
- Bloaty McBloatface
espthernet
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ESP32-C3 Wireless Adventure: A Comprehensive Guide to IoT [pdf]
cnlohr managed to add Ethernet to a esp8266 module (1) using the i2s signals also present in the esp32-c3 and a driver plus magnetics. Once the transformer is in place, passive PoE can be added with a regulator connected to the relevant transformer pins, probably 2 and 7 in the schematic at (2), but yeah, the size grows significantly.
1- https://github.com/cnlohr/espthernet
2- https://github.com/cnlohr/espthernet/blob/gh-pages/hardware/...
What are some alternatives?
Clipboard - 😎🏖️🐬 Your new, 𝙧𝙞𝙙𝙤𝙣𝙠𝙪𝙡𝙞𝙘𝙞𝙤𝙪𝙨𝙡𝙮 smart clipboard manager
esp-idf - Espressif IoT Development Framework. Official development framework for Espressif SoCs.
TinyGo - Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.
esp-wifi - A WiFi, Bluetooth and ESP-NOW driver for use with Espressif chips and bare-metal Rust
protozero - Minimalist protocol buffer decoder and encoder in C++
esphome - ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems.
capstone - Capstone disassembly/disassembler framework for ARM, ARM64 (ARMv8), BPF, Ethereum VM, M68K, M680X, Mips, MOS65XX, PPC, RISC-V(rv32G/rv64G), SH, Sparc, SystemZ, TMS320C64X, TriCore, Webassembly, XCore and X86.
connectedhomeip - Matter (formerly Project CHIP) creates more connections between more objects, simplifying development for manufacturers and increasing compatibility for consumers, guided by the Connectivity Standards Alliance.
periphery - A tool to identify unused code in Swift projects.
willow - Open source, local, and self-hosted Amazon Echo/Google Home competitive Voice Assistant alternative
prometheus-cpp - Prometheus Client Library for Modern C++
upb - a small protobuf implementation in C