Jarred

22 ms·

211.
by Jarred 4y ago
You will need the version of Zig used by Bun. It’s a few months old, just before LLVM 13 -> 14 migration https://github.com/oven-sh/zig It can be built, but you will also need to compile JSC from bun’s WebKit repo
212.
by Jarred 4y ago
I’m very productive in Zig. I had trouble being productive in other languages while also writing performant code
213.
by Jarred 4y ago
Yes, though timeline not clear right now. We ( https://oven.sh ) are hiring engineers and this is one of the first large projects
214.
by Jarred 4y ago
Creator of Bun here. Regarding the SQLite claim: The "view source" link for SQLite is out of date (fixing shortly), but the numbers are correct. I forgot to change the label on the landing page from "x/sqlite" to &q
215.
by Jarred 4y ago
next week
216.
by Jarred 4y ago
Haven't experimented enough with text-based lockfile formats. It's worth trying. To make serialization fast though, it would still need to do structure of arrays instead of an array of structures. Instead of each package being an
217.
by Jarred 4y ago
That new HTTP server (Deno.serve) is being used Bun’s http server is single-threaded, single-process right now. I think it’s really important to get single-threaded performance right before concurrency. Bun will eventually support builtin
218.
by Jarred 4y ago
I wouldn’t phrase it as a competitor but Bun will ship hosting & deployment https://oven.sh
219.
by Jarred 4y ago
I don’t really have opinions about just-js. I enjoyed their blog post about optimizing Postgres though
220.
by Jarred 4y ago
Zig is great. The editor tooling could use some more work but I think after their new stage2 compiler is more ready, it sounds like they’ll invest more into that.
221.
by Jarred 4y ago
There have been musl builds of Bun before but there were a couple subtle bugs regarding thread spawning. I’m also not sure about posix_spawn implementation - would need to read up on that
222.
by Jarred 4y ago
Happy to answer any questions about Bun
223.
by Jarred 4y ago
Have you looked at `__ulock_wake` versus `os_unfair_lock_with_options`? __ulock_wake is another private darwin API for locking. From some Zig code: // Darwin XNU 7195.50.7.100.1 introduced __ulock_wait2 and migrated code
224.
by Jarred 4y ago
If you want to build stuff using Zig full-time, Oven ( https://oven.sh ) is hiring Zig engineers. Email jarred@oven.sh to apply
225.
by Jarred 4y ago
Oven | https://oven.sh | REMOTE or San Francisco | Full-time Oven is hiring systems engineers to make JavaScript faster. We're building Bun: an extremely fast JavaScript runtime, transpiler, npm package manager and bundler
226.
by Jarred 4y ago
> 1. Will Oven adopt a security policy for Bun? ( https://github.com/oven-sh/bun/security ) Yes. > 2. What measures is Oven taking to proactively detect and mitigate vulnerabilities? (e.g.: fuzzing, audits, bu
227.
by Jarred 4y ago
There's no secret sauce Just lots of time spent profiling and trying things On the runtime side, JavaScriptCore/WebKit's team are extremely receptive to feedback, especially performance-related. Today, @Constellation made `P
228.
by Jarred 4y ago
Sourcemaps are technically already implemented, but not for bundled dependencies. Initially, it was a 30% drop, but I made it use lots of SIMD and that compensated a lot. When you use Bun's runtime, it transpiles every file (including
229.
by Jarred 4y ago
opaque pointers yes - 'ptr' or 'void*' as the arg type/return type. if you need to create a pointer then you can use a Uint8Array or a BigUint64Array. generated types - not yet, though if it's a pointer you can
230.
by Jarred 4y ago
bun:ffi is available in the current version of bun. Here's an example that uses raylib (GUI library), without any extra bindings/build step: https://github.com/theoparis/bunray/blob/main/src&#x2
231.
by Jarred 4y ago
On macOS it explicitly uses clonefile() On Linux, not yet. I don't have a machine that supports reflinks right now and I am hesitant to push code for this without manually testing it works. That being said, it does use copy_file_range
232.
by Jarred 4y ago
> It seems like the main thing that bun does to stay ahead is cache the manifest responses. PNPM, for example, resolves all package versions when installing (without a lockfile), which is slower. This isn't the main optimization. Th
233.
by Jarred 4y ago
will fix the broken links shortly edit: should be fixed
234.
by Jarred 4y ago
I started building Bun a little over a year ago, and as of about 20 minutes ago, its in public beta One of the things I'm excited about is bun install. On Linux, it installs dependencies for a simple Next.js app about 20x faster than a
235.
by Jarred 4y ago
Does bitcode have the same performance gains from `-emit-llvm -flto=full`? It seems like Clang is better at inlining across compilation units when -emit-llvm is passed, but it also seems to store additional object files in temporary files?
236.
All About Libpas, Phil's Super Fast Malloc(github.com)
287 points by Jarred 4y ago|81 comments
237.
by Jarred 5y ago
They’re working on it You can follow along here https://bugs.webkit.org/show_bug.cgi?id=222382
238.
by Jarred 5y ago
Unfortunately, reading files from .zip can be considerably slower than the filesystem. On an Ubuntu x86_64 machine with an SSD, require("react") with Yarn PnP ends up 4x slower than when installed from npm (Node 14.17.6).
239.
by Jarred 5y ago
macOS has a couple platform-specific APIs for copying/cloning files that’re worth looking at - copyfile: https://developer.apple.com/library/archive/documentation/Sy... - clonefile: https://ww
240.
by Jarred 5y ago
This is 100% the reason why. Having > 500 people in the GitHub repository distracts me from getting it to be done enough for a public release (but still worth it)

More ›