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Month: April 2019

🐘+🦀+🕸 php-ext-wasm: Migrating from wasmi to Wasmer

How php-ext-wasm has migrated from wasmi to Wasmer and now enjoys a 29x speedup, is faster than PHP itself, and is closer to native speed.

Ivan Enderlin Computer Science, Projects, wasmer, Work 4 Comments April 3, 2019January 19, 2021 5 Minutes

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Computer Science (59)
Life (6)
Projects (19)
- atoum (3)
- Hoa (3)
- Tagua VM (2)
- wasmer (5)
Talks (36)
Trips (5)
Uncategorized (1)
Work (16)

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asmjs automattic bindings browser c++ caldav carddav cbindgen challenge-one-conference-per-day compiler console coroutine cpp css data dav documentation elm emacs event evil-mode extension ffi finite-state machine from-rust-to-beyond functional-reactive-programming generation graphic gutenberg haskell Hoa intermediate-representation iterator java javascript jetbrains just-in-time-compilation linux llvm nom operating-system parallelism parser peg performance php pijul proof quickcheck regular-expression rfc rust servo shell signal ssl string swift Tagua VM teamcity terminal test text-editor tls type variance version-control vim virtual-machine vulkan wasm wasmer webassembly webdav whatsapp

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The technology behind GitHub’s new code search , https://github.blog/2023-02-06-the-technology-behind-githubs-new-code-search/.That’s very impressive. Congrats to GitHub on this project!#code #SearchEngine #BigData
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Next stop: Defining a type for representing alignments. It must be a power of two, non zero unsigned integer. Easy. https://github.com/Hywan/weld/commit/f2e9f00dc65634b6b8145ad04c9221c6f478aaf3With that, still zero copy but more and more semantics by leveraging the type system. Nice :-).Note: Option in Rust has the same size as u64. Cool! Zero cost abstraction once again.#elf #parser #RustLang
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Each program header and section header in Elf has a content. It's represented by the new `Data` type in weld, https://github.com/Hywan/weld/commit/f541364004c99aa7d666687767cb4005da3c9263 and https://github.com/Hywan/weld/commit/4ec23096b64775494226fea2e0e662bb24a410cb.I'm experimenting this zero-copy API to request the content. Let's see where it goes. But it's very handy for debugging!#elf #parser
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I've added a new `SectionIndex` type, https://github.com/Hywan/weld/commit/9ecaef702532bc399c12229e58e688aa05cbf3a6.It helps dealing with the semantics of section index in Elf64, and it also helps having a valid usize, which is helpful when used as a Vec index.It's finally less error-prone: Using the Rust type system as much as possible.#elf #parser
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Next Rust Compiler, https://matklad.github.io/2023/01/25/next-rust-compiler.html.The article discusses what the ideal next Rust compiler should look like, and which features it should provide.#RustLang #compiler
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OK. Things are clearer. Let’s find time to improve the Elf64 parser. Maybe I’ll be able to link a super super basic object file “soon”.I want `weld` to be a cross-linker: like you specify a triple target and it links object files whatever the format and the platform you run.
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Why did I start this project… 🤦‍♂️
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@jedisct1 👋
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A living snake. With 2 heads. It’s a real one.
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Servo 2023 Roadmap, https://servo.org/blog/2023/02/03/servo-2023-roadmap/.This makes me really happy.#web #rendering #engine #RustLang
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@servo 👋
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Souper, https://github.com/google/souper.Souper is a superoptimizer for LLVM IR. It uses an SMT solver to help identify missing peephole optimizations in LLVM's midend optimizers.#compiler #optimiser #performance #llvm #smt
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Forking Chrome to render in a terminal, https://fathy.fr/carbonyl.Really fun. Totally useless. But really fun!#web #terminal
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Falsehoods programmers believe about undefined behaviour, https://predr.ag/blog/falsehoods-programmers-believe-about-undefined-behavior/.The article explains what is an undefined behaviour exactly. It’s funny.#UndefinedBehaviour
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GCC undefined behaviors are getting wild, http://blog.pkh.me/p/37-gcc-undefined-behaviors-are-getting-wild.html.Interesting to see how GCC assumptions on integers behaviors can lead to UB in some cases.#gcc #compiler #safety

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