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← The speed of a system is set by its longest serial dependency chain,…
16 connected korrents · 12 moments on record from 1 Feb 2015 to 26 Aug 2026.
Everything filed under software performance
software performance
Everything filed under compilers
compilers
Everything filed under data centers
data centers
Everything filed under simplicity
simplicity Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Read this korrent: The speed of a system is set by its longest serial dependency chain, which is a property of the architecture and cannot be parallelised away afterwards. The speed of a system is set by its longest serial dependency chain, which is a property of the architecture and cannot be parallelised away afterwards. Last stated 2 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — tap for who they are
Same subject: Everyone on a team who makes architectural decisions must understand performance, because a codebase that can be optimized later only ends up that way on purpose. — tap to centre the map on it Everyone on a team who makes architectural decisions must understand performance, because a codebase that can be optimized later only ends up that way on purpose. Last stated 2 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — tap for who they are
Same subject: Asynchrony should be a property of how a program is run, not a colour baked into the type of every function in the standard library. — tap to centre the map on it Asynchrony should be a property of how a program is run, not a colour baked into the type of every function in the standard library. Last stated 12 years ago
1 Feb 2015
BN
Bob Nystrom — holds since 2015-02-01 — tap for who they are
Same subject: Organisational fixes are slow because they have to drain years of accumulated state, and that same slowness is what makes them durable once they take. — tap to centre the map on it Organisational fixes are slow because they have to drain years of accumulated state, and that same slowness is what makes them durable once they take. Last stated 8 years ago
17 Jun 2018
WL
Will Larson — holds since 2018-06-17 — tap for who they are
Same subject: Concurrency is hard not because human brains cannot handle it but because nobody gets enough practice at it. — tap to centre the map on it Concurrency is hard not because human brains cannot handle it but because nobody gets enough practice at it. Last stated a month ago
29 Jul 2026
HW
Hillel Wayne — holds since 2026-07-29 — tap for who they are
Same subject: The binding constraint on AI is no longer power or data centres but the semiconductor supply chain, which has by far the longest lead times. — tap to centre the map on it The binding constraint on AI is no longer power or data centres but the semiconductor supply chain, which has by far the longest lead times. Last stated 6 months ago
13 Mar 2026
DP
Dylan Patel — holds since 2026-03-13 — tap for who they are
Same subject: A speed difference between languages that share the LLVM backend measures the benchmark author, not the languages. — tap to centre the map on it A speed difference between languages that share the LLVM backend measures the benchmark author, not the languages. Last stated a year ago
22 Mar 2025
TH
ThePrimeagen — holds since 2025-03-22 — tap for who they are
Same subject: Iteration speed is the decisive factor in making a game: a team that rebuilds every day ends up far better than one that rebuilds every week. — tap to centre the map on it Iteration speed is the decisive factor in making a game: a team that rebuilds every day ends up far better than one that rebuilds every week. Last stated a year ago
30 Apr 2025
TS
Tim Sweeney — holds since 2025-04-30 — tap for who they are
Same subject: "Is the page loaded?" was never a real question, and web performance only became measurable once it was broken into the distinct moments a user actually notices. — tap to centre the map on it "Is the page loaded?" was never a real question, and web performance only became measurable once it was broken into the distinct moments a user actually notices. Last stated 3 weeks ago
19 Aug 2026
AO
Addy Osmani — holds since 2026-08-19 — tap for who they are
Same subject: "Optimize it later" would be safe advice only if every engineer already knew how to avoid the architectural mistakes that no later optimization can remove. — tap to centre the map on it "Optimize it later" would be safe advice only if every engineer already knew how to avoid the architectural mistakes that no later optimization can remove. Last stated 2 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — tap for who they are
Same subject: A 300-millisecond response budget is not an achievement but an admission: 300 milliseconds is an eternity in computing, and a product pitching it shows how far the bar has fallen. — tap to centre the map on it A 300-millisecond response budget is not an achievement but an admission: 300 milliseconds is an eternity in computing, and a product pitching it shows how far the bar has fallen. Last stated 2 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — tap for who they are
Same subject: Code and files generated by tools are pollution: hand-writing them is worth the effort because the bloat slows everything down for everyone. — tap to centre the map on it Code and files generated by tools are pollution: hand-writing them is worth the effort because the bloat slows everything down for everyone. Last stated 7 years ago
15 Oct 2019
DS
Derek Sivers — holds since 2019-10-15 — tap for who they are
Same subject: Generators emit thousands of lines where ten would do, and that waste is why people think their phone is slow. — tap to centre the map on it Generators emit thousands of lines where ten would do, and that waste is why people think their phone is slow. Last stated 7 years ago
15 Oct 2019
DS
Derek Sivers — holds since 2019-10-15 — tap for who they are
Same subject: AI acceleration threatens 'less software': without the constraint of scarce hours, even 37signals will likely build too much. — tap to centre the map on it AI acceleration threatens 'less software': without the constraint of scarce hours, even 37signals will likely build too much. Last stated a month ago
26 Jul 2026
DH
David Heinemeier Hansson — holds since 2026-07-26 — tap for who they are
Same subject: What clean-code polymorphism really costs you is not the virtual call but the optimizations the compiler can no longer perform once it cannot see what runs. — tap to centre the map on it What clean-code polymorphism really costs you is not the virtual call but the optimizations the compiler can no longer perform once it cannot see what runs. Last stated 2 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — tap for who they are
Same subject: A compiler that also serves an IDE has to be lazy and deferred throughout — a different way of building compilers from the one the textbooks teach. — tap to centre the map on it A compiler that also serves an IDE has to be lazy and deferred throughout — a different way of building compilers from the one the textbooks teach. Last stated 4 months ago
13 May 2026
AH
Anders Hejlsberg — holds since 2026-05-13 — tap for who they are
Same subject: A compiler that names every place a change breaks turns refactoring into fixing errors until the compiler stops shouting. — tap to centre the map on it A compiler that names every place a change breaks turns refactoring into fixing errors until the compiler stops shouting. Last stated 4 months ago
20 May 2026
AR
Alice Ryhl — holds since 2026-05-20 — tap for who they are