Lup Yuen Lee 李立源 @lupyuen@qoto.org
- Pronouns/Gender/Sexuality
- He/Him/They, Bisexual/Asexual 🇸🇬
- Date of Birth
- 1969
- Articles
- https://lupyuen.org
IoT Techie and Educator / Apache NuttX PMC
Joined Jan 2020
"The Poppy War" by R. F. Kuang
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unwyze: Wyze Cam v3 RCE Exploit (2023)
"Starting with #Redis 7.4, all future versions of Redis software will be dual-licensed under the Redis Source Available License (RSAL 2) and the Server Side Public License (SSLPv1)" (instead of BSD license)
https://www.infoworld.com/article/3714743/redis-moves-to-source-available-licenses.html
Here's the Memory Map for #Ox64 BL808 SBC ... Which we replicated for Ox64 Emulator
Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#appendix-risc-v-addresses-for-ox64
Apache #NuttX on #Ox64 BL808 Emulator makes a #RISCV ECALL System Call ... Here's why it fails
Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#machine-mode-vs-supervisor-mode
"malicious web page on a server controlled by the Conspirators that resembled a legitimate download page for the common software product Adobe Flash ... an unsuspecting victim trying to download Adobe Flash instead would download the EvilOSX Malware"
#Ox64 BL808 Emulator runs Apache #NuttX RTOS in the Web Browser ... Just compile #TinyEMU Emulator to WebAssembly (with Emscripten)
Article: https://lupyuen.codeberg.page/articles/tinyemu2.html#emulator-in-the-web-browser
Lup Yuen Lee 李立源
boosted
@lupyuen IMHO this article provided an old, boring but cannot-be-wrong conclusion:
the performance (of clone) depends on the actual workload.
The author listed some scenarios they think clone() is better. My knowledge is limited so I can’t comment much. I can say that if the memory-sharing is guarded by terribly designed locks, its performance will be worse than the naive clone() approach
CedarSentinel: #Discord Bot for using Trained Models to detect Spam
Lup Yuen Lee 李立源
boosted
@lupyuen This is very misleading. It highly depends on what you are cloning and how often at runtime (in a hot loop for example?)
Clone while learning or prototyping. Don't get stuck on premature optimization.
But cloning has a performance overhead and you should be aware of that when you want to release your code. Whether that overhead is significant is highly dependent on your specific code.
"all those (#RustLang) `clone()`s added up to no more than a minuscule overhead in real world workloads"
"A large percentage of #STM's Operating Revenue comes from Singapore"
Visualization of #Meshtastic Data with Datacake (#LoRa)
https://ckblog2016.net/2024/03/21/visualization-of-meshtastic-data-with-datacake/
"The Information and Communications Technology sector as a whole is responsible for an estimated 2 to 4 percent of global Greenhouse Gas Emissions. By 2040, that number could reach 14 percent"
- Pronouns/Gender/Sexuality
- He/Him/They, Bisexual/Asexual 🇸🇬
- Date of Birth
- 1969
- Articles
- https://lupyuen.org
IoT Techie and Educator / Apache NuttX PMC
Joined Jan 2020
