cospaia · HackerTrans

cospaia

no profile record

Submissions

Show HN: Epupp – Live, REPL-driven, browser tampering

4 pointsby cospaiail y a 4 mois0 comments

Show HN: A data oriented TodoMVC using Replicant

11 pointsby cospaiail y a 2 ans0 comments

[untitled]

1 pointsby cospaiail y a 3 ans0 comments

[untitled]

1 pointsby cospaiail y a 3 ans0 comments

[untitled]

1 pointsby cospaiail y a 4 ans0 comments

[untitled]

1 pointsby cospaiail y a 4 ans0 comments

Be aware of NUMA when your application needs to run fast

2 pointsby cospaiail y a 4 ans2 comments

Java BitSet performance-flicker mystery

113 pointsby cospaiail y a 4 ans86 comments

I love being an open source developer, also when it is not butter smooth

3 pointsby cospaiail y a 5 ans1 comments

A REPL-driven, zero-install, Get Started with Clojure guide

19 pointsby cospaiail y a 5 ans3 comments

comments

il y a 2 ansdiscuss

Wow. I'm the creator of Calva and I can tell you that I do not have an opinion on how to use it. I would never say something like that, and now I wonder what I could have said that was interpreted this way...

By default Calva Paredit overrides three or so keyboard shortcuts. This is to help the users to not accidentally delete brackets, which in turn keeps the support questions down about broken Clojure code. I have tried to make it super easy to disable these overrides. There's a command for it. There's a button in the toolbar for it, and there's a setting for it.

There's also a setting for removing all Paredit bindings, even those that are not overriding any default ones. (This setting is for people who use Paredit, but want to provide their own shortcuts entirely.)

il y a 2 ansdiscuss

As a Clojure editor tool smith it pains me that this is the case. Especially for ClojureScript where I spend most of my time. I really want to fix this.

For JVM interop, I think Cursive (IntelliJ Clojure plugin) is smart enough to help with autocompleting Java libraries.

il y a 3 ansdiscuss

Thanks! Even though I am not super familiar with Ports & Adapters, this article made Polylith click in a way that no other article or video I've so far encountered has succeeded with. Composable mini-cores. Brilliant!

il y a 3 ansdiscuss

I am a member of the Interactive Programming cult, being dogmatic around one thing in particular: I demand that programming is joyful, else it is not for me.

il y a 3 ansdiscuss

Clojure changed my life. It made me realize how fun it is to code and switch back to being a programmer. This makes me a much happier person and thus a better husband and father. Never looking back. The Clojure Way just fits me perfectly.

il y a 4 ansdiscuss

Thanks for sharing this! It is a quite wonderful way to learn. Reminds me about Racket, which was my tool for following along the Land of LISP book.

il y a 4 ansdiscuss

I made a video about some of the benefits of using ClojureScript for developing VS Code Extensions. It's a short (9 minutes) demo of me hacking on an extension of mine, trying to relay what it is we Clojure peeps mean when we speak of Interactive Programming (aka REPL Driven Development). I find it super powerful when hacking on extensions, since restarting the Dev Extension Host can be pretty disruptive. And having to halt the program in the debugger to inspect it often does does not fit when searching for the cause of a problem.

This article on LISP interactivity inspired me: http://blog.fogus.me/2022/11/10/the-one-about-lisp-interacti...

il y a 4 ansdiscuss

Thanks! Please consider filing your suggestion as an idea on the Joyride discussions section: https://github.com/BetterThanTomorrow/joyride/discussions

il y a 4 ansdiscuss

Ah, so it's the editor war we are fighting here? =)

il y a 4 ansdiscuss

=)

Writing that made me challenge it. What if it is possible? https://github.com/BetterThanTomorrow/joyride/discussions/14

il y a 4 ansdiscuss

Which fine steak would that be?

il y a 4 ansdiscuss

It is definitely true that Joyride can't make VS Code as fully extensible as Emacs is. VS Code is not designed this way. And also some extensibility from an extension need to come from an extension manifest when an extension loads, so Joyride can't declare new commands for instance. I'm guessing that is the simplest thing in Emacs.

Having, draw a rendom number out of a hat, 50% of Emacs extensibility at your REPL is fantastic, and worth pursuing. Joyride can do everything a VS Code extension can do, except the things i mentioned above, and anyone who has used some VS Code extensions knows that that is a lot.

However, the self documenting part described above is not out of reach. Most of the code building up the VS Code API is open source. Same goes for many of the extensions. Looking up and navigating to any of that code is possible. Perhaps a lot of work would need to be put in, but it is possible.

il y a 4 ansdiscuss

Tbh, the last nights have been less about sleep and more about hacking on Joyride. =)

But usually I do get sleep. The question we should ask is if borkdude sleeps? He's doing about 100X as much as I do. Maybe there are hundreds of borkdudes.

il y a 4 ansdiscuss

As the co-creator here I'd like to add that Joyride is taking the very first baby steps here. We hope a lot of people want to try it and provide feedback to inform our next steps.

NB: The video has a target audience of people who know Clojure and its strengths. Especially how the REPL is used. I hope HN will see beyond the parens. =) It should make some sense anyway. Especially if you have some Emacs scripting experience, because that is where most of the inspiration to Joyride comes from.

il y a 4 ansdiscuss

Thanks Hacker News for helping me solve that mystery with performance in my Java program. Now I only have the problem left to solve. (And some of you might learn a thing or two about deployment of programs where performance is of utter importance.)

il y a 4 ansdiscuss

Thanks! It does and it does not. Here's 100 rounds where it does: https://github.com/PEZ/ghost-chase-condition/tree/master/tes...

But in other cases I have it seems to not help that much. Not sure how to minimize those, but will try figure it out.

il y a 4 ansdiscuss

I had this issue using JDK17 and 18 as well, so at least by default things are not better. =)

I wonder if there is a way that does not involve using `numactl`. It needs the container to run in privileged mode and that is not how the containers are run in the drag-racing benchmark...

il y a 4 ansdiscuss

I can't bind cpu and memory different.

  $ numactl --hardware
    available: 1 nodes (0)
  node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
  node 0 size: 15395 MB
  node 0 free: 2542 MB
  node distances:
  node   0 
    0:  10 


  $ numactl --cpunodebind=0 --membind=1 java PrimeSieve
  libnuma: Warning: node argument 1 is out of range

il y a 4 ansdiscuss

I love the detail with which you describe the experiments. Let's see what I get running this on my Linux box!

il y a 4 ansdiscuss

It was indeed this.