How my Node.js code was causing a massive memory leak and how I solved it
https://www.reddit.com/r/programming/comments/1okqswx/how_my_nodejs_code_was_causing_a_massive_memory/
<!-- SC_OFF -->For the longest time, I had a Node.js server with a slow memory leak. It would creep up for days and then crash. I'd internally blame V8, thinking the garbage collector was just "being slow" or "missing things." I was completely wrong. The GC wasn't the problem; my code was. The V8 garbage collector is an incredibly optimized piece of engineering. It's just a system with a clear set of rules. The problem was my code was breaking those rules. I realized that the GC is designed for two different scenarios: New Space (Scavenger): A high-speed cleanup crew for short-lived objects (like variables in a function). It's fast and efficient. Old Space (Mark-Sweep): A slower, more methodical crew for long-lived objects (like global singletons, caches). My code was causing leaks by actively sabotaging this system: Problem 1: GC Thrashing. I had a data.map() in a hot path that created thousands of new objects per request. My code was flooding the New Space, forcing the high-speed "Scavenger" to run constantly, burning CPU. Problem 2: Accidental Promotions. I had a simple per-request cache that I forgot to clear. V8 saw these temporary objects being held onto, so it assumed they were "long-lived" and promoted them to the Old Space. My temporary garbage was now in the permanent file cabinet, leading to the slow memory creep. Problem 3: The Closure Trap. I had an event listener whose callback only needed a userId but was accidentally holding a reference to the entire 10MB user object. The GC did its job and kept the object alive (because my code told it to). Once I learned these rules, I was able to solve the problem of regular crashing for that server. I wrote a full deep-dive on this. It covers how the GC actually works, how to spot these code anti-patterns, and the practical "3-snapshot technique" for finding the exact line of code that's causing your leak. You can read the full guide here: article (https://medium.com/codetodeploy/de-mystifying-the-v8-garbage-collector-how-your-code-is-sabotaging-your-apps-memory-c290f80eb1d0?source=friends_link&sk=fc1c16b78a846500f40de8539dba7332) <!-- SC_ON --> submitted by /u/Paper-Superb (https://www.reddit.com/user/Paper-Superb)
[link] (https://medium.com/codetodeploy/de-mystifying-the-v8-garbage-collector-how-your-code-is-sabotaging-your-apps-memory-c290f80eb1d0?source=friends_link&sk=fc1c16b78a846500f40de8539dba7332) [comments] (https://www.reddit.com/r/programming/comments/1okqswx/how_my_nodejs_code_was_causing_a_massive_memory/)
https://www.reddit.com/r/programming/comments/1okqswx/how_my_nodejs_code_was_causing_a_massive_memory/
<!-- SC_OFF -->For the longest time, I had a Node.js server with a slow memory leak. It would creep up for days and then crash. I'd internally blame V8, thinking the garbage collector was just "being slow" or "missing things." I was completely wrong. The GC wasn't the problem; my code was. The V8 garbage collector is an incredibly optimized piece of engineering. It's just a system with a clear set of rules. The problem was my code was breaking those rules. I realized that the GC is designed for two different scenarios: New Space (Scavenger): A high-speed cleanup crew for short-lived objects (like variables in a function). It's fast and efficient. Old Space (Mark-Sweep): A slower, more methodical crew for long-lived objects (like global singletons, caches). My code was causing leaks by actively sabotaging this system: Problem 1: GC Thrashing. I had a data.map() in a hot path that created thousands of new objects per request. My code was flooding the New Space, forcing the high-speed "Scavenger" to run constantly, burning CPU. Problem 2: Accidental Promotions. I had a simple per-request cache that I forgot to clear. V8 saw these temporary objects being held onto, so it assumed they were "long-lived" and promoted them to the Old Space. My temporary garbage was now in the permanent file cabinet, leading to the slow memory creep. Problem 3: The Closure Trap. I had an event listener whose callback only needed a userId but was accidentally holding a reference to the entire 10MB user object. The GC did its job and kept the object alive (because my code told it to). Once I learned these rules, I was able to solve the problem of regular crashing for that server. I wrote a full deep-dive on this. It covers how the GC actually works, how to spot these code anti-patterns, and the practical "3-snapshot technique" for finding the exact line of code that's causing your leak. You can read the full guide here: article (https://medium.com/codetodeploy/de-mystifying-the-v8-garbage-collector-how-your-code-is-sabotaging-your-apps-memory-c290f80eb1d0?source=friends_link&sk=fc1c16b78a846500f40de8539dba7332) <!-- SC_ON --> submitted by /u/Paper-Superb (https://www.reddit.com/user/Paper-Superb)
[link] (https://medium.com/codetodeploy/de-mystifying-the-v8-garbage-collector-how-your-code-is-sabotaging-your-apps-memory-c290f80eb1d0?source=friends_link&sk=fc1c16b78a846500f40de8539dba7332) [comments] (https://www.reddit.com/r/programming/comments/1okqswx/how_my_nodejs_code_was_causing_a_massive_memory/)
Are you drowning in AI code review noise? 70% of AI PR comments are useless
https://www.reddit.com/r/programming/comments/1okvtqp/are_you_drowning_in_ai_code_review_noise_70_of_ai/
<!-- SC_OFF -->Most AI code review tools generate 10-20 comments per PR. The problem? 80% are noise. Here's a framework for measuring signal-to-noise ratio in code reviews - and why it matters more than you think. <!-- SC_ON --> submitted by /u/Jet_Xu (https://www.reddit.com/user/Jet_Xu)
[link] (https://jetxu-llm.github.io/posts/low-noise-code-review/) [comments] (https://www.reddit.com/r/programming/comments/1okvtqp/are_you_drowning_in_ai_code_review_noise_70_of_ai/)
https://www.reddit.com/r/programming/comments/1okvtqp/are_you_drowning_in_ai_code_review_noise_70_of_ai/
<!-- SC_OFF -->Most AI code review tools generate 10-20 comments per PR. The problem? 80% are noise. Here's a framework for measuring signal-to-noise ratio in code reviews - and why it matters more than you think. <!-- SC_ON --> submitted by /u/Jet_Xu (https://www.reddit.com/user/Jet_Xu)
[link] (https://jetxu-llm.github.io/posts/low-noise-code-review/) [comments] (https://www.reddit.com/r/programming/comments/1okvtqp/are_you_drowning_in_ai_code_review_noise_70_of_ai/)
Friendly Attributes Pattern in Ruby
https://www.reddit.com/r/programming/comments/1okwrhe/friendly_attributes_pattern_in_ruby/
submitted by /u/brunobilling (https://www.reddit.com/user/brunobilling)
[link] (https://brunosutic.com/blog/ruby-friendly-attributes-pattern) [comments] (https://www.reddit.com/r/programming/comments/1okwrhe/friendly_attributes_pattern_in_ruby/)
https://www.reddit.com/r/programming/comments/1okwrhe/friendly_attributes_pattern_in_ruby/
submitted by /u/brunobilling (https://www.reddit.com/user/brunobilling)
[link] (https://brunosutic.com/blog/ruby-friendly-attributes-pattern) [comments] (https://www.reddit.com/r/programming/comments/1okwrhe/friendly_attributes_pattern_in_ruby/)
Horror Coding Stories: Therac-25 — A deadly race condition and overflow
https://www.reddit.com/r/programming/comments/1okxks7/horror_coding_stories_therac25_a_deadly_race/
submitted by /u/teivah (https://www.reddit.com/user/teivah)
[link] (https://read.thecoder.cafe/p/therac-25) [comments] (https://www.reddit.com/r/programming/comments/1okxks7/horror_coding_stories_therac25_a_deadly_race/)
https://www.reddit.com/r/programming/comments/1okxks7/horror_coding_stories_therac25_a_deadly_race/
submitted by /u/teivah (https://www.reddit.com/user/teivah)
[link] (https://read.thecoder.cafe/p/therac-25) [comments] (https://www.reddit.com/r/programming/comments/1okxks7/horror_coding_stories_therac25_a_deadly_race/)
I compiled my research on modern bot detection into a deep-dive on multi-layer fingerprinting (TLS/JA3, Canvas, Biometrics)
https://www.reddit.com/r/programming/comments/1okyk2z/i_compiled_my_research_on_modern_bot_detection/
<!-- SC_OFF -->As part of the research for my asyncio Python automation library (pydoll), I fell down the rabbit hole of modern bot detection and ended up writing what is essentially a technical manual on the subject. I wanted to share the findings with the community. I found that User-Agent spoofing is almost entirely irrelevant now. The real detection happens by correlating data across a "stack" of fingerprints to check for consistency. The full guide is here: https://pydoll.tech/docs/deep-dive/fingerprinting/ The research covers the full detection architecture. It starts at the network layer, analyzing how your client's TLS "Client Hello" packet creates a unique signature (JA3) that can identify Python's requests library before a single HTTP request is even sent.Then, it moves to the hardware layer, detailing how browsers are fingerprinted based on the unique way your specific GPU/driver combination renders an image (Canvas/WebGL). Finally, it covers the biometric layer, explaining how systems analyze the physics of your mouse movements (based on Fitts's Law) and the cadence of your typing (digraph analysis) to distinguish you from a machine. <!-- SC_ON --> submitted by /u/thalissonvs (https://www.reddit.com/user/thalissonvs)
[link] (https://pydoll.tech/docs/deep-dive/fingerprinting/) [comments] (https://www.reddit.com/r/programming/comments/1okyk2z/i_compiled_my_research_on_modern_bot_detection/)
https://www.reddit.com/r/programming/comments/1okyk2z/i_compiled_my_research_on_modern_bot_detection/
<!-- SC_OFF -->As part of the research for my asyncio Python automation library (pydoll), I fell down the rabbit hole of modern bot detection and ended up writing what is essentially a technical manual on the subject. I wanted to share the findings with the community. I found that User-Agent spoofing is almost entirely irrelevant now. The real detection happens by correlating data across a "stack" of fingerprints to check for consistency. The full guide is here: https://pydoll.tech/docs/deep-dive/fingerprinting/ The research covers the full detection architecture. It starts at the network layer, analyzing how your client's TLS "Client Hello" packet creates a unique signature (JA3) that can identify Python's requests library before a single HTTP request is even sent.Then, it moves to the hardware layer, detailing how browsers are fingerprinted based on the unique way your specific GPU/driver combination renders an image (Canvas/WebGL). Finally, it covers the biometric layer, explaining how systems analyze the physics of your mouse movements (based on Fitts's Law) and the cadence of your typing (digraph analysis) to distinguish you from a machine. <!-- SC_ON --> submitted by /u/thalissonvs (https://www.reddit.com/user/thalissonvs)
[link] (https://pydoll.tech/docs/deep-dive/fingerprinting/) [comments] (https://www.reddit.com/r/programming/comments/1okyk2z/i_compiled_my_research_on_modern_bot_detection/)
C3 0.7.7 Vector ABI changes, RISC-V improvements and more
https://www.reddit.com/r/programming/comments/1okzgsu/c3_077_vector_abi_changes_riscv_improvements_and/
<!-- SC_OFF -->For those who don't know about C3: it is a general purpose language that strives to be an evolution of C. The 0.7.7 release among other things changes the vector ABI to pass SIMD vectors as arrays by default, which opens up ABI compatibility with C libraries that uses structs for things like vectors. Other than this it improves RISC-V support and introduces struct initializer splatting (similar to Dart copyWith), and implicit deref subscripting using foo.[i] which is primarily useful when working with generic macros that may both take arrays and pointers to arrays. Some more to dig into if you're interested in C3 Here are some interviews on C3: - https://www.youtube.com/watch?v=UC8VDRJqXfc - https://www.youtube.com/watch?v=9rS8MVZH-vA Here is a series doing various tasks in C3: - https://ebn.codeberg.page/programming/c3/c3-file-io/ Repository with link to various C3 resources and projects: - https://github.com/c3lang/c3-showcase Some projects: Gameboy emulator https://github.com/OdnetninI/Gameboy-Emulator/ RISCV Bare metal Hello World: https://www.youtube.com/watch?v=0iAJxx6Ok4E "Depths of Daemonheim" roguelike https://github.com/TechnicalFowl/7DRL-2025 <!-- SC_ON --> submitted by /u/Nuoji (https://www.reddit.com/user/Nuoji)
[link] (https://c3-lang.org/blog/c3-language-at-0-7-7-vector-abi,-riscv-improvements-and-more/) [comments] (https://www.reddit.com/r/programming/comments/1okzgsu/c3_077_vector_abi_changes_riscv_improvements_and/)
https://www.reddit.com/r/programming/comments/1okzgsu/c3_077_vector_abi_changes_riscv_improvements_and/
<!-- SC_OFF -->For those who don't know about C3: it is a general purpose language that strives to be an evolution of C. The 0.7.7 release among other things changes the vector ABI to pass SIMD vectors as arrays by default, which opens up ABI compatibility with C libraries that uses structs for things like vectors. Other than this it improves RISC-V support and introduces struct initializer splatting (similar to Dart copyWith), and implicit deref subscripting using foo.[i] which is primarily useful when working with generic macros that may both take arrays and pointers to arrays. Some more to dig into if you're interested in C3 Here are some interviews on C3: - https://www.youtube.com/watch?v=UC8VDRJqXfc - https://www.youtube.com/watch?v=9rS8MVZH-vA Here is a series doing various tasks in C3: - https://ebn.codeberg.page/programming/c3/c3-file-io/ Repository with link to various C3 resources and projects: - https://github.com/c3lang/c3-showcase Some projects: Gameboy emulator https://github.com/OdnetninI/Gameboy-Emulator/ RISCV Bare metal Hello World: https://www.youtube.com/watch?v=0iAJxx6Ok4E "Depths of Daemonheim" roguelike https://github.com/TechnicalFowl/7DRL-2025 <!-- SC_ON --> submitted by /u/Nuoji (https://www.reddit.com/user/Nuoji)
[link] (https://c3-lang.org/blog/c3-language-at-0-7-7-vector-abi,-riscv-improvements-and-more/) [comments] (https://www.reddit.com/r/programming/comments/1okzgsu/c3_077_vector_abi_changes_riscv_improvements_and/)
Rotating Workforce Scheduling in MiniZinc
https://www.reddit.com/r/programming/comments/1ol30lv/rotating_workforce_scheduling_in_minizinc/
submitted by /u/mzl (https://www.reddit.com/user/mzl)
[link] (https://zayenz.se/blog/post/rotating-workforce-scheduling/) [comments] (https://www.reddit.com/r/programming/comments/1ol30lv/rotating_workforce_scheduling_in_minizinc/)
https://www.reddit.com/r/programming/comments/1ol30lv/rotating_workforce_scheduling_in_minizinc/
submitted by /u/mzl (https://www.reddit.com/user/mzl)
[link] (https://zayenz.se/blog/post/rotating-workforce-scheduling/) [comments] (https://www.reddit.com/r/programming/comments/1ol30lv/rotating_workforce_scheduling_in_minizinc/)
John Carmack on mutable variables
https://www.reddit.com/r/programming/comments/1ol3unj/john_carmack_on_mutable_variables/
submitted by /u/iamkeyur (https://www.reddit.com/user/iamkeyur)
[link] (https://twitter.com/id_aa_carmack/status/1983593511703474196) [comments] (https://www.reddit.com/r/programming/comments/1ol3unj/john_carmack_on_mutable_variables/)
https://www.reddit.com/r/programming/comments/1ol3unj/john_carmack_on_mutable_variables/
submitted by /u/iamkeyur (https://www.reddit.com/user/iamkeyur)
[link] (https://twitter.com/id_aa_carmack/status/1983593511703474196) [comments] (https://www.reddit.com/r/programming/comments/1ol3unj/john_carmack_on_mutable_variables/)
On Developers in C-Level Meetings
https://www.reddit.com/r/programming/comments/1ol71dt/on_developers_in_clevel_meetings/
submitted by /u/radekmie (https://www.reddit.com/user/radekmie)
[link] (https://radekmie.dev/blog/on-developers-in-c-level-meetings/) [comments] (https://www.reddit.com/r/programming/comments/1ol71dt/on_developers_in_clevel_meetings/)
https://www.reddit.com/r/programming/comments/1ol71dt/on_developers_in_clevel_meetings/
submitted by /u/radekmie (https://www.reddit.com/user/radekmie)
[link] (https://radekmie.dev/blog/on-developers-in-c-level-meetings/) [comments] (https://www.reddit.com/r/programming/comments/1ol71dt/on_developers_in_clevel_meetings/)
Take-Home Exercises
https://www.reddit.com/r/programming/comments/1ol8erx/takehome_exercises/
submitted by /u/duruq (https://www.reddit.com/user/duruq)
[link] (https://justoffbyone.com/posts/take-home-exercises/) [comments] (https://www.reddit.com/r/programming/comments/1ol8erx/takehome_exercises/)
https://www.reddit.com/r/programming/comments/1ol8erx/takehome_exercises/
submitted by /u/duruq (https://www.reddit.com/user/duruq)
[link] (https://justoffbyone.com/posts/take-home-exercises/) [comments] (https://www.reddit.com/r/programming/comments/1ol8erx/takehome_exercises/)
We’re back with episode 2 of 1 IDEA! Today, Vinay Perneti (VP of Eng @ Augment Code) shares his own Bottleneck Test
https://www.reddit.com/r/programming/comments/1oladfe/were_back_with_episode_2_of_1_idea_today_vinay/
submitted by /u/JaySym_ (https://www.reddit.com/user/JaySym_)
[link] (https://www.linkedin.com/posts/sedai_were-back-with-episode-2-of-1-idea-today-ugcPost-7390078412994011136-UJEj?utm_source=share&utm_medium=member_ios&rcm=ACoAAA4I7OYB0r3pIICU7bofQlBFeRQyQF8K1UM) [comments] (https://www.reddit.com/r/programming/comments/1oladfe/were_back_with_episode_2_of_1_idea_today_vinay/)
https://www.reddit.com/r/programming/comments/1oladfe/were_back_with_episode_2_of_1_idea_today_vinay/
submitted by /u/JaySym_ (https://www.reddit.com/user/JaySym_)
[link] (https://www.linkedin.com/posts/sedai_were-back-with-episode-2-of-1-idea-today-ugcPost-7390078412994011136-UJEj?utm_source=share&utm_medium=member_ios&rcm=ACoAAA4I7OYB0r3pIICU7bofQlBFeRQyQF8K1UM) [comments] (https://www.reddit.com/r/programming/comments/1oladfe/were_back_with_episode_2_of_1_idea_today_vinay/)
Looking for advice
https://www.reddit.com/r/programming/comments/1olgivd/looking_for_advice/
<!-- SC_OFF -->Hello! Well, how can I start, I'm young and I'm finishing the school I will enter the next year to study CS and AI engineering and I just want to well, be someone "important" not in a popular way but in a academic way, I have been doing a lot of proyects and my final protect for school was my programming language cattleya, I don't truly know if I'm doing all in a correct way, and I feel kind of lost essentially because, I mean making a language on school is extraordinary but in university is like a simple task so I don't know what to do to keep that "high impact profile". If some of you can please recommend me some courses, videos, proyects, or just give your pov pls tell me. :) <!-- SC_ON --> submitted by /u/InflationNo7838 (https://www.reddit.com/user/InflationNo7838)
[link] (https://github.com/justlebadura/cattleyaLang) [comments] (https://www.reddit.com/r/programming/comments/1olgivd/looking_for_advice/)
https://www.reddit.com/r/programming/comments/1olgivd/looking_for_advice/
<!-- SC_OFF -->Hello! Well, how can I start, I'm young and I'm finishing the school I will enter the next year to study CS and AI engineering and I just want to well, be someone "important" not in a popular way but in a academic way, I have been doing a lot of proyects and my final protect for school was my programming language cattleya, I don't truly know if I'm doing all in a correct way, and I feel kind of lost essentially because, I mean making a language on school is extraordinary but in university is like a simple task so I don't know what to do to keep that "high impact profile". If some of you can please recommend me some courses, videos, proyects, or just give your pov pls tell me. :) <!-- SC_ON --> submitted by /u/InflationNo7838 (https://www.reddit.com/user/InflationNo7838)
[link] (https://github.com/justlebadura/cattleyaLang) [comments] (https://www.reddit.com/r/programming/comments/1olgivd/looking_for_advice/)
Programming Language Agnostic Naming Conventions
https://www.reddit.com/r/programming/comments/1olht95/programming_language_agnostic_naming_conventions/
submitted by /u/Distinct-Panic-246 (https://www.reddit.com/user/Distinct-Panic-246)
[link] (https://codedrivendevelopment.com/posts/programmatic-naming-conventions-guide) [comments] (https://www.reddit.com/r/programming/comments/1olht95/programming_language_agnostic_naming_conventions/)
https://www.reddit.com/r/programming/comments/1olht95/programming_language_agnostic_naming_conventions/
submitted by /u/Distinct-Panic-246 (https://www.reddit.com/user/Distinct-Panic-246)
[link] (https://codedrivendevelopment.com/posts/programmatic-naming-conventions-guide) [comments] (https://www.reddit.com/r/programming/comments/1olht95/programming_language_agnostic_naming_conventions/)
I built a service that automatically reviews GitHub PRs using code analysis + inline comments
https://www.reddit.com/r/programming/comments/1olinc4/i_built_a_service_that_automatically_reviews/
<!-- SC_OFF -->I recently built a small system that automatically reviews GitHub Pull Requests. How it works GitHub Webhook triggers on a new PR Backend fetches changed files from GitHub’s API Code is passed to an external review service That service analyzes for issues (lint, bug patterns, performance risk, etc.) Then it posts inline review comments back on the PR Stack
Node.js / Express / MongoDB
Python / FastAPI with LangChain for the analysis workflow The most challenging parts were: Verifying webhook signatures correctly Mapping diff hunks to correct line numbers Handling API pagination + rate limits Messaging between Node ↔ Python services It’s still evolving, but it now handles basic reviews end-to-end. Repo: https://github.com/Mohammed-bm/pr-review Posting here in case anyone is curious about the approach. <!-- SC_ON --> submitted by /u/mohammedbm13 (https://www.reddit.com/user/mohammedbm13)
[link] (https://pr-review-ten.vercel.app/login) [comments] (https://www.reddit.com/r/programming/comments/1olinc4/i_built_a_service_that_automatically_reviews/)
https://www.reddit.com/r/programming/comments/1olinc4/i_built_a_service_that_automatically_reviews/
<!-- SC_OFF -->I recently built a small system that automatically reviews GitHub Pull Requests. How it works GitHub Webhook triggers on a new PR Backend fetches changed files from GitHub’s API Code is passed to an external review service That service analyzes for issues (lint, bug patterns, performance risk, etc.) Then it posts inline review comments back on the PR Stack
Node.js / Express / MongoDB
Python / FastAPI with LangChain for the analysis workflow The most challenging parts were: Verifying webhook signatures correctly Mapping diff hunks to correct line numbers Handling API pagination + rate limits Messaging between Node ↔ Python services It’s still evolving, but it now handles basic reviews end-to-end. Repo: https://github.com/Mohammed-bm/pr-review Posting here in case anyone is curious about the approach. <!-- SC_ON --> submitted by /u/mohammedbm13 (https://www.reddit.com/user/mohammedbm13)
[link] (https://pr-review-ten.vercel.app/login) [comments] (https://www.reddit.com/r/programming/comments/1olinc4/i_built_a_service_that_automatically_reviews/)
Not So Fast: Analyzing the Performance of WebAssembly vs. Native Code (WASM 45% slower)
https://www.reddit.com/r/programming/comments/1oljj3v/not_so_fast_analyzing_the_performance_of/
<!-- SC_OFF -->Note: The study uses a modified BROWSIX (a linux kernel for browsers) to achieve fair comparisons of complex WASM programs versus native programs. Background: I am looking into WASM and wanted to understand about it's actual performance characteristics. The study suggests that former small synthetic benchmarks can get fairly close to native speed (10% ish loss), but the benchmarks in this study are at least 45% worse then native speed. That being said running a linux kernel in a browser at that penalty is probably better then powerpoint fps performance. Another less academic benchmark (https://00f.net/2023/01/04/webassembly-benchmark-2023/) from 2023 shows that in some cases WASM runtimes can be worse then node/v8, bun quite regularly, some runtimes only winning by a margin, but overall tend to be faster then node, with a few clear winners. (Not sure whether node has all the potential performance benefits and if it's representative for browser performance.) Current Verdict: You not simply switch to WASM and go vrrrm. The runtime and the code matters, a lot. <!-- SC_ON --> submitted by /u/Zomgnerfenigma (https://www.reddit.com/user/Zomgnerfenigma)
[link] (https://ar5iv.labs.arxiv.org/html/1901.09056) [comments] (https://www.reddit.com/r/programming/comments/1oljj3v/not_so_fast_analyzing_the_performance_of/)
https://www.reddit.com/r/programming/comments/1oljj3v/not_so_fast_analyzing_the_performance_of/
<!-- SC_OFF -->Note: The study uses a modified BROWSIX (a linux kernel for browsers) to achieve fair comparisons of complex WASM programs versus native programs. Background: I am looking into WASM and wanted to understand about it's actual performance characteristics. The study suggests that former small synthetic benchmarks can get fairly close to native speed (10% ish loss), but the benchmarks in this study are at least 45% worse then native speed. That being said running a linux kernel in a browser at that penalty is probably better then powerpoint fps performance. Another less academic benchmark (https://00f.net/2023/01/04/webassembly-benchmark-2023/) from 2023 shows that in some cases WASM runtimes can be worse then node/v8, bun quite regularly, some runtimes only winning by a margin, but overall tend to be faster then node, with a few clear winners. (Not sure whether node has all the potential performance benefits and if it's representative for browser performance.) Current Verdict: You not simply switch to WASM and go vrrrm. The runtime and the code matters, a lot. <!-- SC_ON --> submitted by /u/Zomgnerfenigma (https://www.reddit.com/user/Zomgnerfenigma)
[link] (https://ar5iv.labs.arxiv.org/html/1901.09056) [comments] (https://www.reddit.com/r/programming/comments/1oljj3v/not_so_fast_analyzing_the_performance_of/)
Bold Devlog - October Summary
https://www.reddit.com/r/programming/comments/1olm7hv/bold_devlog_october_summary/
submitted by /u/levodelellis (https://www.reddit.com/user/levodelellis)
[link] (https://bold-edit.com/devlog/25-10-summary.html) [comments] (https://www.reddit.com/r/programming/comments/1olm7hv/bold_devlog_october_summary/)
https://www.reddit.com/r/programming/comments/1olm7hv/bold_devlog_october_summary/
submitted by /u/levodelellis (https://www.reddit.com/user/levodelellis)
[link] (https://bold-edit.com/devlog/25-10-summary.html) [comments] (https://www.reddit.com/r/programming/comments/1olm7hv/bold_devlog_october_summary/)
Hard Rust requirements from May onward for all Debian ports
https://www.reddit.com/r/programming/comments/1olmnhx/hard_rust_requirements_from_may_onward_for_all/
submitted by /u/pyeri (https://www.reddit.com/user/pyeri)
[link] (https://lists.debian.org/debian-devel/2025/10/msg00285.html) [comments] (https://www.reddit.com/r/programming/comments/1olmnhx/hard_rust_requirements_from_may_onward_for_all/)
https://www.reddit.com/r/programming/comments/1olmnhx/hard_rust_requirements_from_may_onward_for_all/
submitted by /u/pyeri (https://www.reddit.com/user/pyeri)
[link] (https://lists.debian.org/debian-devel/2025/10/msg00285.html) [comments] (https://www.reddit.com/r/programming/comments/1olmnhx/hard_rust_requirements_from_may_onward_for_all/)
DigitalOcean is chasing me for $0.01: What it taught me about automation
https://www.reddit.com/r/programming/comments/1ols6mk/digitalocean_is_chasing_me_for_001_what_it_taught/
<!-- SC_OFF -->TL;DR: A quick reminder that automation is powerful but needs thoughtful thresholds and edge-case handling to avoid unintended resource waste. <!-- SC_ON --> submitted by /u/modelop (https://www.reddit.com/user/modelop)
[link] (https://linuxblog.io/digitalocean-1-cent-automation/) [comments] (https://www.reddit.com/r/programming/comments/1ols6mk/digitalocean_is_chasing_me_for_001_what_it_taught/)
https://www.reddit.com/r/programming/comments/1ols6mk/digitalocean_is_chasing_me_for_001_what_it_taught/
<!-- SC_OFF -->TL;DR: A quick reminder that automation is powerful but needs thoughtful thresholds and edge-case handling to avoid unintended resource waste. <!-- SC_ON --> submitted by /u/modelop (https://www.reddit.com/user/modelop)
[link] (https://linuxblog.io/digitalocean-1-cent-automation/) [comments] (https://www.reddit.com/r/programming/comments/1ols6mk/digitalocean_is_chasing_me_for_001_what_it_taught/)
Async/Await is finally back in Zig
https://www.reddit.com/r/programming/comments/1olu700/asyncawait_is_finally_back_in_zig/
submitted by /u/pseudocharleskk (https://www.reddit.com/user/pseudocharleskk)
[link] (https://open.substack.com/pub/charlesfonseca/p/asyncawait-is-finally-back-in-zig?r=6451wm&utm_campaign=post&utm_medium=web&showWelcomeOnShare=false) [comments] (https://www.reddit.com/r/programming/comments/1olu700/asyncawait_is_finally_back_in_zig/)
https://www.reddit.com/r/programming/comments/1olu700/asyncawait_is_finally_back_in_zig/
submitted by /u/pseudocharleskk (https://www.reddit.com/user/pseudocharleskk)
[link] (https://open.substack.com/pub/charlesfonseca/p/asyncawait-is-finally-back-in-zig?r=6451wm&utm_campaign=post&utm_medium=web&showWelcomeOnShare=false) [comments] (https://www.reddit.com/r/programming/comments/1olu700/asyncawait_is_finally_back_in_zig/)
Seed7 - The Extensible Programming Language
https://www.reddit.com/r/programming/comments/1oluiof/seed7_the_extensible_programming_language/
<!-- SC_OFF -->BTW. The Seed7 homepage has moved and is now at https://seed7.net (https://seed7.net/) <!-- SC_ON --> submitted by /u/ThomasMertes (https://www.reddit.com/user/ThomasMertes)
[link] (https://www.youtube.com/watch?v=BgzNLgtypVs) [comments] (https://www.reddit.com/r/programming/comments/1oluiof/seed7_the_extensible_programming_language/)
https://www.reddit.com/r/programming/comments/1oluiof/seed7_the_extensible_programming_language/
<!-- SC_OFF -->BTW. The Seed7 homepage has moved and is now at https://seed7.net (https://seed7.net/) <!-- SC_ON --> submitted by /u/ThomasMertes (https://www.reddit.com/user/ThomasMertes)
[link] (https://www.youtube.com/watch?v=BgzNLgtypVs) [comments] (https://www.reddit.com/r/programming/comments/1oluiof/seed7_the_extensible_programming_language/)