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← How data is laid out and how it is accessed are architectural…
17 connected korrents · 11 moments on record from 3 Jun 2015 to 26 Aug 2026.
Everything filed under software performance
software performance
Everything filed under code generation
code generation
Everything filed under compilers
compilers
Everything filed under JavaScript
JavaScript
Everything filed under design
design
Everything filed under startups
startups 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 Same subject Read this korrent: How data is laid out and how it is accessed are architectural decisions with nothing to do with hot spots, and the difference between two layouts can be enormous. How data is laid out and how it is accessed are architectural decisions with nothing to do with hot spots, and the difference between two layouts can be enormous. Last stated 2 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — tap for who they are
Same subject: Hand-optimizing hot spots barely matters any more, because the libraries are already fast and CPUs are extremely good at running bad code quickly; what is left is architecture. — tap to centre the map on it Hand-optimizing hot spots barely matters any more, because the libraries are already fast and CPUs are extremely good at running bad code quickly; what is left is architecture. Last stated 2 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — tap for who they are
Same subject: What trips up newcomers to Rust is not the code but the shape of their data. — tap to centre the map on it What trips up newcomers to Rust is not the code but the shape of their data. Last stated 4 months ago
20 May 2026
AR
Alice Ryhl — holds since 2026-05-20 — tap for who they are
Same subject: Moving the computation to where the data lives is the fundamental design move in object-oriented programming, and it got lost in the noise. — tap to centre the map on it Moving the computation to where the data lives is the fundamental design move in object-oriented programming, and it got lost in the noise. Last stated 2 months ago
1 Jul 2026
KB
Kent Beck — holds since 2026-07-01 — tap for who they are
Same subject: Building on a model is unlike any previous software engineering, because the thing you are building on cannot be designed up front. — tap to centre the map on it Building on a model is unlike any previous software engineering, because the thing you are building on cannot be designed up front. Last stated a month ago
27 Jul 2026
BC
Boris Cherny — holds since 2026-07-27 — tap for who they are
Same subject: A startup's durable advantage over a general model is having visibility into data the general model will never see. — tap to centre the map on it A startup's durable advantage over a general model is having visibility into data the general model will never see. Last stated a month ago
30 Jul 2026
JD
Jeff Dean — holds since 2026-07-30 — tap for who they are
Same subject: Service boundaries cannot be got right at the start, and moving functionality between services is far harder than moving it inside a monolith. — tap to centre the map on it Service boundaries cannot be got right at the start, and moving functionality between services is far harder than moving it inside a monolith. Last stated 11 years ago
3 Jun 2015
MF
Martin Fowler — holds since 2015-06-03 — 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: There is no trade-off between well-architected code and fast code: in practice, the code that is architected properly is also the code that runs quickly. — tap to centre the map on it There is no trade-off between well-architected code and fast code: in practice, the code that is architected properly is also the code that runs quickly. Last stated 2 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — 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: AI-written code makes formal proof necessary, because human review of all that generated code becomes the bottleneck. — tap to centre the map on it AI-written code makes formal proof necessary, because human review of all that generated code becomes the bottleneck. Last stated 5 months ago
22 Apr 2026
MK
Martin Kleppmann — holds since 2026-04-22 — tap for who they are
Same subject: Every time software has become easier to create, the world has created exponentially more of it, and this time will be no exception. — tap to centre the map on it Every time software has become easier to create, the world has created exponentially more of it, and this time will be no exception. Last stated 3 weeks ago
19 Aug 2026
AO
Addy Osmani — holds since 2026-08-19 — 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
Same subject: A programming language is not a compiler but an experience: editing, running, debugging and the runtime library all have to fit together as one cycle. — tap to centre the map on it A programming language is not a compiler but an experience: editing, running, debugging and the runtime library all have to fit together as one cycle. Last stated 4 months ago
13 May 2026
AH
Anders Hejlsberg — holds since 2026-05-13 — tap for who they are
Same subject: A proprietary language licensed from Microsoft had zero chance in the JavaScript ecosystem: TypeScript had to be open source or nobody would come. — tap to centre the map on it A proprietary language licensed from Microsoft had zero chance in the JavaScript ecosystem: TypeScript had to be open source or nobody would come. Last stated 4 months ago
13 May 2026
AH
Anders Hejlsberg — holds since 2026-05-13 — tap for who they are
Same subject: Because its types are erased before the program runs, TypeScript can afford not to be sound: checking 99% beats the 0% JavaScript checked, and buys features a sound language cannot offer. — tap to centre the map on it Because its types are erased before the program runs, TypeScript can afford not to be sound: checking 99% beats the 0% JavaScript checked, and buys features a sound language cannot offer. Last stated 4 months ago
13 May 2026
AH
Anders Hejlsberg — holds since 2026-05-13 — tap for who they are
Same subject: Fiscal multipliers vary across time and place but are generally nonzero, positive for spending, negative for taxes, and larger when monetary policy cannot offset them. — tap to centre the map on it Fiscal multipliers vary across time and place but are generally nonzero, positive for spending, negative for taxes, and larger when monetary policy cannot offset them. Last stated 4 years ago
1 Jun 2022
OB
Olivier Blanchard — holds since 2022-06-01 — tap for who they are
At the centre
How data is laid out and how it is accessed are architectural decisions with nothing to do with hot spots, and the difference between two layouts can be enormous.
Holds CM Casey MuratoriRead this korrent →
Hand-optimizing hot spots barely matters any more, because the libraries are already fast and CPUs are extremely good at running bad code quickly; what is left is architecture.
Holds CM Casey Muratori
What trips up newcomers to Rust is not the code but the shape of their data.
Holds AR Alice Ryhl
Moving the computation to where the data lives is the fundamental design move in object-oriented programming, and it got lost in the noise.
Holds KB Kent Beck
Building on a model is unlike any previous software engineering, because the thing you are building on cannot be designed up front.
Holds
A startup's durable advantage over a general model is having visibility into data the general model will never see.
Holds JD Jeff Dean
Service boundaries cannot be got right at the start, and moving functionality between services is far harder than moving it inside a monolith.
Holds MF Martin Fowler
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.
Holds CM Casey Muratori
There is no trade-off between well-architected code and fast code: in practice, the code that is architected properly is also the code that runs quickly.
Holds CM Casey Muratori
AI acceleration threatens 'less software': without the constraint of scarce hours, even 37signals will likely build too much.
Holds
AI-written code makes formal proof necessary, because human review of all that generated code becomes the bottleneck.
Holds MK Martin Kleppmann
Every time software has become easier to create, the world has created exponentially more of it, and this time will be no exception.
Holds AO Addy Osmani
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.
Holds AH Anders Hejlsberg
A compiler that names every place a change breaks turns refactoring into fixing errors until the compiler stops shouting.
Holds AR Alice Ryhl
A programming language is not a compiler but an experience: editing, running, debugging and the runtime library all have to fit together as one cycle.
Holds AH Anders Hejlsberg
A proprietary language licensed from Microsoft had zero chance in the JavaScript ecosystem: TypeScript had to be open source or nobody would come.
Holds AH Anders Hejlsberg
Because its types are erased before the program runs, TypeScript can afford not to be sound: checking 99% beats the 0% JavaScript checked, and buys features a sound language cannot offer.
Holds AH Anders Hejlsberg
Fiscal multipliers vary across time and place but are generally nonzero, positive for spending, negative for taxes, and larger when monetary policy cannot offset them.
Holds