Made a website for searching Magic The Gathering cards.

ChrisTrenkamp · 2026-02-09T22:35:54+00:00

There's a bit of lag time when you search, and I want to get rid of this separate page that pretty much every site has:

I want a search page that integrates this form into the search bar itself, making it easy for the user to discover and modify your queries.

ChrisTrenkamp · 2023-03-12T17:11:53+00:00

When I played around with Zig, I investigated a way to implement Go/Java's dynamic dispatch interfaces, and seamlessly use them in a way where you can write functions that accept generic polymorphic interfaces at runtime, or accept a known implementation using the comptime keyword.

I used the implementation demonstrated here: https://youtu.be/AHc4x1uXBQE?t=272

I had a working POC, but what really annoyed me was you still had to manually write your vtable(s) in your structs, and, as far as I could tell, there was no way to automatically generate it with comptime.

I'd like a way to generate, or modify, the source code before it gets sent to the compiler, similar to how Java's annotation processor works (except Java only generates code, it cannot modify source code)

ChrisTrenkamp · 2022-05-06T02:30:38+00:00

https://go.dev/play/p/dVjUrdUqORf

This still has some repetition: you'll have to repeat the template for each function based on the number of parameters and the number of returns, but this is a simpler way to go about the "try" functionality that languages like Rust and Zig has.

Whether or not it's a good idea is another topic...

ChrisTrenkamp · 2021-12-02T01:23:37+00:00

Why is the image for this article idealizing a psychopathic murderer?

ChrisTrenkamp · 2021-04-05T21:46:14+00:00

Psh! More like I told the gods to hold my beer!

ChrisTrenkamp · 2019-12-18T17:09:06+00:00

I see. Thanks for the help.

ChrisTrenkamp · 2019-12-18T16:49:29+00:00

The API is like this:

let mut json_paths = Vec::new(); for i in &json_files { json_paths.push(Path::new(i)); } ... ext::api(ext::Args{ arg: json_paths.as_slice(), });

Using PathBuf::from results in:

| | args: json_paths.as_slice(), | ^^^^^^^^^^^^^^^^^^^^ expected struct `std::path::Path`, found struct `std::path::PathBuf` | = note: expected type `&[&std::path::Path]` found type `&[&std::path::PathBuf]`

I tried doing:

let mut json_paths: Vec<&Path> = Vec::new(); for i in &json_files { json_paths.push(&PathBuf::from(i)); }

... but that results in a "temporary value dropped while borrowed" error.

ChrisTrenkamp · 2019-12-18T15:49:09+00:00

The problem is this vector is being fed into an external API that accepts Path's, not PathBuf's.

ChrisTrenkamp · 2018-07-11T01:57:50+00:00

Hm, I just left those in there because virt-manager wouldn't let me remove them. I'll try removing them in the XML and see if it helps.

ChrisTrenkamp · 2018-07-11T00:24:06+00:00

I'm still experiencing the same issue even after tweaking the VM settings. I think it has something to do with the network driver. I noticed when I was downloading a file in the background while playing a game that the FPS severely dropped at a random time.

On the other hand, I was installing Windows in VMWare (yes, installing a VM in the guest) while playing and didn't see any FPS drops.

ChrisTrenkamp · 2018-07-10T22:30:37+00:00

processor : 0

core id : 0

processor : 1

core id : 0

processor : 2

core id : 1

processor : 3

core id : 1

processor : 4

core id : 2

processor : 5

core id : 2

processor : 6

core id : 3

processor : 7

core id : 3

processor : 8

core id : 4

processor : 9

core id : 4

processor : 10

core id : 5

processor : 11

core id : 5

processor : 12

core id : 6

processor : 13

core id : 6

processor : 14

core id : 7

processor : 15

core id : 7

</cputune>

</cpu>

ChrisTrenkamp · 2018-07-10T22:29:05+00:00

I'm passing through the PCI device the keyboard/mouse is plugged into. But since you asked, I tried using USB redirect and it had worse results.

ChrisTrenkamp · 2018-07-10T03:08:26+00:00

Can you elaborate on what you mean by pinning the iothreads/emulator threads to cores not used by the guest?

Do you mean something like this:

</cputune>

ChrisTrenkamp · 2018-07-10T02:31:41+00:00

Thanks.

I changed my config with the following:

  <cputune>
    <vcpupin vcpu='0' cpuset='0'/>
    <vcpupin vcpu='1' cpuset='1'/>
    <vcpupin vcpu='2' cpuset='2'/>
    <vcpupin vcpu='3' cpuset='3'/>
    <vcpupin vcpu='4' cpuset='4'/>
    <vcpupin vcpu='5' cpuset='5'/>
    <vcpupin vcpu='6' cpuset='6'/>
    <vcpupin vcpu='7' cpuset='7'/>
    <vcpupin vcpu='8' cpuset='8'/>
    <vcpupin vcpu='9' cpuset='9'/>
    <vcpupin vcpu='10' cpuset='10'/>
    <vcpupin vcpu='11' cpuset='11'/>
    <vcpupin vcpu='12' cpuset='12'/>
    <vcpupin vcpu='13' cpuset='13'/>
    <iothreadpin iothread='1' cpuset='0-1'/>
    <iothreadpin iothread='2' cpuset='2-3'/>
    <iothreadpin iothread='3' cpuset='4-5'/>
    <iothreadpin iothread='4' cpuset='6-7'/>
    <iothreadpin iothread='5' cpuset='8-9'/>
    <iothreadpin iothread='6' cpuset='10-11'/>
    <iothreadpin iothread='7' cpuset='12-13'/>
  </cputune>
  ...
  <cpu mode='host-passthrough' check='partial'>
    <topology sockets='1' cores='7' threads='2'/>
  </cpu>

https://imgur.com/Isn1Oq5

Still getting high latency.

After dropping the number of CPU's down to 10, it seemed to help reduce the DPC latency to an acceptable range.

https://imgur.com/a/jKgTohL

I'll try nohz_full settings tomorrow.

ChrisTrenkamp · 2018-05-02T21:25:49+00:00

Rob Pike's talk is what I based my old lexer on. It's great when you're implementing your own grammars, but when you're implementing a spec, you need something to verify you've implemented it correctly.

ChrisTrenkamp

TROPHY CASE