perspective VS magic-trace

We're looking for senior product managers and engineers of all experience levels to build the next generation of collaborative data visualization. At the Prospective Co., you'll contribute to our existing open-source project as well as help design our enterprise offering.

https://perspective.finos.org/

We're looking for any of:

- Familiarity with WebAssembly, data visualization, WebGL/OpenGL, data science, Jupyter/notebook, web/desktop/mobile UI development, compiler/language or database design, finance services.

- Primary stack is Rust (targeting WebAssembly). JavaScript, C++ and Python are a big plus.

- We <3 GitHub contributors - opt to discuss your GitHub work in lieu of a technical interview.

Contact [email protected]

DESCRIPTION: We're looking for senior product managers and engineers of all experience levels to build the next generation of collaborative data visualization. At the Prospective Co., you'll contribute to our existing open-source project (Perspective https://perspective.finos.org/) as well as help design our enterprise offering. We're looking for any of: - Familiarity with WebAssembly, data visualization, WebGL/OpenGL, data science, Jupyter/notebook, web/desktop/mobile UI development, compiler/language or database design, finance services. - Primary stack is Rust (targeting WebAssembly, especially Yew). JavaScript, C++ and Python are a big plus. - We <3 GitHub contributors - opt to discuss your GitHub work in lieu of a technical interview.

Thank you. I saw this, https://github.com/finos/perspective

Would love to see this integrate with magic trace [1]. I'll need to look at the code for the flamegraph plugin, because handling nanosecond timestamps in flamegraphs seems to break most tools due to float precision.

(1) https://github.com/janestreet/magic-trace

As for inner workings, have you looked into magic trace? I want to play around with it but last I checked, it doesn't work on macs.

Magic-trace – High-resolution traces of what a process is doing\ (133 comments)

``` $ git clone https://github.com/janestreet/magic-trace Cloning into 'magic-trace'... remote: Enumerating objects: 1392, done. remote: Counting objects: 100% (515/515), done. remote: Compressing objects: 100% (161/161), done. remote: Total 1392 (delta 406), reused 355 (delta 354), pack-reused 877 Receiving objects: 100% (1392/1392), 33.80 MiB | 22.94 MiB/s, done. Resolving deltas: 100% (784/784), done.

Absolutely, check out https://github.com/janestreet/magic-trace#privacy-policy and https://github.com/janestreet/magic-trace/wiki/Setting-up-a-.... With a bit of extra configuration, magic-trace can host its own UI locally. You just need to build the UI from source, and point magic-trace to it (via an environment variable).

Apparently it works with virtualization at least with KVM according to https://github.com/janestreet/magic-trace/wiki/How-could-mag......

Broadwell works, Skylake or later works better. We go into more detail about what platforms we support and why in https://github.com/janestreet/magic-trace/wiki/Supported-pla...

They mention that in the privacy section:

https://github.com/janestreet/magic-trace#privacy-policy

We are similarly sad about how unavailable Intel PT is in VMs. In 2022, being unavailable on Macs and VMs raises the barrier to entry extraordinarily high for many people in our target audience. Not sure if working outside of work is your cup of tea, but we've found Intel NUCs to be <$1000 and an unobtrusive way to play with these features at home.

Good point about overhead. I've moved the 2%-10% number front and center, and wrote up a bit more detail about where that comes from in a new wiki page: https://github.com/janestreet/magic-trace/wiki/Overhead

We'll think about adding flame graphs. We unfortunately have little experience writing responsive web UIs, the excellent Perfetto developers did all of the heavy lifting on that front. But who knows, maybe an enterprising Open Source Contributor could help us out. I see Matt Godbolt was asking questions in their discord the other day...