📢 A blog post by @littledan on contributions to Node from TechAtBloomberg
The article covers...
🔸 Performance: Code caching, startup snapshots, lazy loading
🔸 WinterCG: AsyncContext
🔸 Funding: Direct sponsorship & other models
https://www.nearform.com/blog/bloomberg-invests-in-node-js-shouldnt-you/
These performance wins when capturing heap snapshots using the Memory tab in Chrome DevTools can range between 2x and 100x depending on the use-case 🔥
You can benefit from this improved debugging performance today in Chromium 115 or Node 20.5 which was published one week ago 🎉
Luckily TechAtBloomberg have a decade-long collaboration with Igalia that means we can call on the best folk in the industry to solve these problems for all of us 🤝
José Dapena took the ball and scored two major wins to reduce heap capture times via better hashing and caching 👍
The story began when Ashley Claymore was investigating a memory leak. Taking the heap snapshot took 10 minutes 😯
He knew something was not right and passed the ball to our performance team. Jason Williams investigated further using the Windows Performance Analyzer 🕵️
📣 Debugging memory problems in Chrome DevTools is now super fast ⚡
José Dapena has made heap snapshots *much* quicker based on investigations by Jason Williams & Ashley Claymore and funding from TechAtBloomberg 🎉
🧵
How does Code Caching work for Chromium's V8 JavaScript compiler?
Deep dive by Leszek Swirski on how repeat views not only leverage the browser cache for the network response, but also the compiler bytecode. It even includes a limited amount of state snapshot if the initial execution appears deterministic (eg save runtime execution logic for defining and exporting functions).
Good reason to keep library code definitions simple.
Now in @rollupjs v3.24.0, `#__NO_SIDE_EFFECTS__` annotation is supported to mark function declarations as side-effects free. You might not need to add `#__PURE__` to every call anymore, while providing more optimized bundles!
Thanks a lot to @lukastaegert's great support and fast release!
This PR contains: bugfix feature refactor documentation other Are tests included? yes (bugfixes and features will not be merged without tests) no Breaking Changes? yes (breaking change...
"News from WWDC23:
WebKit Features in Safari 17 beta" https://webkit.org/blog/14205/news-from-wwdc23-webkit-features-in-safari-17-beta/
Genuinely impressed with all the stuff landing in Safari lately. The pace has been kind of unbelievable.
Jake Bailey
Mary Branscombe
Timo Tijhof
Anthony Fu
Nolan Lawson