Scaling through crisis: how infrastructure handled 1B messages in a single day
https://www.reddit.com/r/programming/comments/1nodab9/scaling_through_crisis_how_infrastructure_handled/

<!-- SC_OFF -->We recently published a piece on ShiftMag (a project by Infobip) that I think might interest folks here. It’s a candid breakdown of how Infobip’s infrastructure team scaled to handling 10 billion messages in a single day — not just the technical wins, but also the painful outages, bad regexes, and hard lessons learned along the way. <!-- SC_ON --> submitted by /u/shift_devs (https://www.reddit.com/user/shift_devs)
[link] (https://shiftmag.dev/how-infobips-infrastructure-handled-10-billion-messages-in-a-day-6162/) [comments] (https://www.reddit.com/r/programming/comments/1nodab9/scaling_through_crisis_how_infrastructure_handled/)

SQL Is for Data, Not for Logic
https://www.reddit.com/r/programming/comments/1nodhc9/sql_is_for_data_not_for_logic/

submitted by /u/ewaldbenes (https://www.reddit.com/user/ewaldbenes)
[link] (https://ewaldbenes.com/en/blog/why-i-keep-business-logic-out-of-sql) [comments] (https://www.reddit.com/r/programming/comments/1nodhc9/sql_is_for_data_not_for_logic/)

A Tour of eBPF in the Linux Kernel: Observability, Security and Networking
https://www.reddit.com/r/programming/comments/1noezi3/a_tour_of_ebpf_in_the_linux_kernel_observability/

<!-- SC_OFF -->I published a new blog post: "A Tour of eBPF in the Linux Kernel: Observability, Security and Networking". I recently read the book "Learning eBPF" by Liz Rice and condensed my notes into this article. Great for a quick overview before you decide to dive deeper! <!-- SC_ON --> submitted by /u/lucavallin (https://www.reddit.com/user/lucavallin)
[link] (https://www.lucavall.in/blog/a-tour-of-ebpf-in-the-linux-kernel-observability-security-and-networking) [comments] (https://www.reddit.com/r/programming/comments/1noezi3/a_tour_of_ebpf_in_the_linux_kernel_observability/)

Your Images Are (Probably) Oversized
https://www.reddit.com/r/programming/comments/1nogdup/your_images_are_probably_oversized/

submitted by /u/HenriqueInonhe (https://www.reddit.com/user/HenriqueInonhe)
[link] (https://reasonunderpressure.com/blog/posts/your-images-are-probably-oversized) [comments] (https://www.reddit.com/r/programming/comments/1nogdup/your_images_are_probably_oversized/)

CodeRabbit Commits 1 Million to Open Source Software Sponsorships.
https://www.reddit.com/r/programming/comments/1nohta2/coderabbit_commits_1_million_to_open_source/

submitted by /u/rag1987 (https://www.reddit.com/user/rag1987)
[link] (https://www.coderabbit.ai/blog/coderabbit-commits-1-million-to-open-source) [comments] (https://www.reddit.com/r/programming/comments/1nohta2/coderabbit_commits_1_million_to_open_source/)

Go has added Valgrind support
https://www.reddit.com/r/programming/comments/1nominv/go_has_added_valgrind_support/

submitted by /u/ketralnis (https://www.reddit.com/user/ketralnis)
[link] (https://go-review.googlesource.com/c/go/+/674077) [comments] (https://www.reddit.com/r/programming/comments/1nominv/go_has_added_valgrind_support/)

The YAML Document from Hell
https://www.reddit.com/r/programming/comments/1nompmr/the_yaml_document_from_hell/

submitted by /u/ketralnis (https://www.reddit.com/user/ketralnis)
[link] (https://ruudvanasseldonk.com/2023/01/11/the-yaml-document-from-hell) [comments] (https://www.reddit.com/r/programming/comments/1nompmr/the_yaml_document_from_hell/)

I've built a Swiss Tables interactive simulator so you can understand how they work internally and how they offer superior performance compared to Buckets
https://www.reddit.com/r/programming/comments/1nomqrc/ive_built_a_swiss_tables_interactive_simulator_so/

<!-- SC_OFF -->As you may know, this year Go switched its hashmap implementation from Buckets to Swiss tables looking for a boost in performance, how much? A lot according to Datadog (https://www.reddit.com/r/programming/comments/1m3di7x/how_go_124s_swiss_tables_saved_hundreds_of/): Go 1.24's Swiss Tables cut our map memory usage by up to 70% in high traffic workloads So I made a visual version of Swiss Tables and a tutorial so you can have an overall view of them and understand why they're so fast <!-- SC_ON --> submitted by /u/prox_sea (https://www.reddit.com/user/prox_sea)
[link] (https://coffeebytes.dev/en/software-architecture/swiss-tables-the-superior-performance-hashmap/) [comments] (https://www.reddit.com/r/programming/comments/1nomqrc/ive_built_a_swiss_tables_interactive_simulator_so/)

Awash in revisionist histories about Apple's web efforts, a look at the evidence
https://www.reddit.com/r/programming/comments/1nomsqf/awash_in_revisionist_histories_about_apples_web/

submitted by /u/ketralnis (https://www.reddit.com/user/ketralnis)
[link] (https://infrequently.org/2025/09/cupertinos-comforting-myths/) [comments] (https://www.reddit.com/r/programming/comments/1nomsqf/awash_in_revisionist_histories_about_apples_web/)

Exploring GrapheneOS secure allocator: Hardened Malloc
https://www.reddit.com/r/programming/comments/1nomtel/exploring_grapheneos_secure_allocator_hardened/

submitted by /u/ketralnis (https://www.reddit.com/user/ketralnis)
[link] (https://www.synacktiv.com/en/publications/exploring-grapheneos-secure-allocator-hardened-malloc) [comments] (https://www.reddit.com/r/programming/comments/1nomtel/exploring_grapheneos_secure_allocator_hardened/)

Postgres’ Original Project Goals: The Creators Totally Nailed It
https://www.reddit.com/r/programming/comments/1nonal1/postgres_original_project_goals_the_creators/

submitted by /u/craigkerstiens (https://www.reddit.com/user/craigkerstiens)
[link] (https://www.crunchydata.com/blog/the-postgres-project-original-goals-and-how-the-creators-totally-nailed-it) [comments] (https://www.reddit.com/r/programming/comments/1nonal1/postgres_original_project_goals_the_creators/)

Fifty Years of Open Source Software Supply-Chain Security
https://www.reddit.com/r/programming/comments/1nop0qq/fifty_years_of_open_source_software_supplychain/

submitted by /u/ketralnis (https://www.reddit.com/user/ketralnis)
[link] (https://cacm.acm.org/practice/fifty-years-of-open-source-software-supply-chain-security/) [comments] (https://www.reddit.com/r/programming/comments/1nop0qq/fifty_years_of_open_source_software_supplychain/)

Compiling a Functional Language to LLVM
https://www.reddit.com/r/programming/comments/1nop1aw/compiling_a_functional_language_to_llvm/

submitted by /u/ketralnis (https://www.reddit.com/user/ketralnis)
[link] (https://danieljharvey.github.io/posts/2023-02-08-llvm-compiler-part-1.html) [comments] (https://www.reddit.com/r/programming/comments/1nop1aw/compiling_a_functional_language_to_llvm/)

Targetting specific characters with CSS rules
https://www.reddit.com/r/programming/comments/1nop1cw/targetting_specific_characters_with_css_rules/

submitted by /u/ketralnis (https://www.reddit.com/user/ketralnis)
[link] (https://shkspr.mobi/blog/2025/09/targetting-specific-characters-with-css-rules/) [comments] (https://www.reddit.com/r/programming/comments/1nop1cw/targetting_specific_characters_with_css_rules/)

Building my own web session recorder
https://www.reddit.com/r/programming/comments/1noqaud/building_my_own_web_session_recorder/

submitted by /u/takkatakka (https://www.reddit.com/user/takkatakka)
[link] (https://www.scryspell.com/blog/2025-09-21-building-my-own-session-recorder-how-i-built-scry-analytics) [comments] (https://www.reddit.com/r/programming/comments/1noqaud/building_my_own_web_session_recorder/)

Just Let Me Select Text
https://www.reddit.com/r/programming/comments/1nostrl/just_let_me_select_text/

submitted by /u/aartaka (https://www.reddit.com/user/aartaka)
[link] (https://aartaka.me/select-text.html) [comments] (https://www.reddit.com/r/programming/comments/1nostrl/just_let_me_select_text/)

defer and errdefer in Rust
https://www.reddit.com/r/programming/comments/1nowrn3/defer_and_errdefer_in_rust/

submitted by /u/phaazon_ (https://www.reddit.com/user/phaazon_)
[link] (https://strongly-typed-thoughts.net/blog/rust-defer-errdefer.md) [comments] (https://www.reddit.com/r/programming/comments/1nowrn3/defer_and_errdefer_in_rust/)

The Hardware Knowledge that Every programmer should know
https://www.reddit.com/r/programming/comments/1np1irj/the_hardware_knowledge_that_every_programmer/

submitted by /u/stackoverflooooooow (https://www.reddit.com/user/stackoverflooooooow)
[link] (https://needoneapp.medium.com/the-hardware-knowledge-that-every-programmer-should-know-f62cf4ba8bdc) [comments] (https://www.reddit.com/r/programming/comments/1np1irj/the_hardware_knowledge_that_every_programmer/)

How We Unified API Tests, SDKs, and Docs Into One Workflow
https://www.reddit.com/r/programming/comments/1np1vwb/how_we_unified_api_tests_sdks_and_docs_into_one/

submitted by /u/ndbroadbent (https://www.reddit.com/user/ndbroadbent)
[link] (https://docspring.com/blog/posts/how-we-unified-api-tests-sdks-and-docs-into-one-workflow/) [comments] (https://www.reddit.com/r/programming/comments/1np1vwb/how_we_unified_api_tests_sdks_and_docs_into_one/)

Beginner Friendly Java Guide Part 1 Looking for Feedback!
https://www.reddit.com/r/programming/comments/1np2yza/beginner_friendly_java_guide_part_1_looking_for/

submitted by /u/Connect-Opening-5475 (https://www.reddit.com/user/Connect-Opening-5475)
[link] (https://mirajmaroni.wixsite.com/mimicoding) [comments] (https://www.reddit.com/r/programming/comments/1np2yza/beginner_friendly_java_guide_part_1_looking_for/)