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carles escrig royo 88a469e823
perf(ext/web): optimize performance.measure() (#25774)
This PR optimizes the case when `performance.measure()` needs to find
the startMark by name. It is a simple change on `findMostRecent` fn to
avoiding copying and reversing the complete entries list.

Adds minor missing tests for:
- `clearMarks()`, general
- `clearMeasures()`, general
- `measure()`, case when the startMarks name exists more than once

### Benchmarks

#### main

```
    CPU | AMD Ryzen 7 PRO 6850U with Radeon Graphics
Runtime | Deno 2.0.0-rc.4 (x86_64-unknown-linux-gnu)

benchmark              time/iter (avg)        iter/s      (min … max)           p75      p99     p995
---------------------- ----------------------------- --------------------- --------------------------
worst case measure()            2.1 ms         486.9 (  1.7 ms …   2.4 ms)   2.2 ms   2.4 ms   2.4 ms
```

#### this PR

```
    CPU | AMD Ryzen 7 PRO 6850U with Radeon Graphics
Runtime | Deno 2.0.0-rc.4 (x86_64-unknown-linux-gnu)

benchmark              time/iter (avg)        iter/s      (min … max)           p75      p99     p995
---------------------- ----------------------------- --------------------- --------------------------
worst case measure()          966.3 µs         1,035 (876.9 µs …   1.1 ms)   1.0 ms   1.1 ms   1.1 ms
```

```ts
Deno.bench("worst case measure()", (b) => {
  performance.mark('start');

  for (let i = 0; i < 1e5; i += 1) {
    performance.mark(crypto.randomUUID());
  }

  b.start();

  performance.measure('total', 'start');

  b.end();

  performance.clearMarks();
  performance.clearMeasures();
});
```
2024-09-20 16:24:59 -07:00
.cargo feat: bring back WebGPU (#20812) 2023-12-09 01:19:16 +01:00
.devcontainer fix(devcontainer): moved settings to customizations/vscode (#21512) 2023-12-19 13:29:39 +01:00
.github ci: increase timeout to 180 minutes (#25750) 2024-09-20 00:05:20 +00:00
bench_util chore: forward v1.46.3 release commit to main (#25425) 2024-09-04 17:16:24 +00:00
cli feat(fmt): upgrade markup_fmt (#25768) 2024-09-20 21:11:34 +00:00
ext perf(ext/web): optimize performance.measure() (#25774) 2024-09-20 16:24:59 -07:00
runtime fix(flags): properly error out for urls (#25770) 2024-09-20 11:10:46 -07:00
tests perf(ext/web): optimize performance.measure() (#25774) 2024-09-20 16:24:59 -07:00
tools refactor(tests): migrate npm itests to specs (#25764) 2024-09-20 22:38:32 +02:00
.dlint.json chore: enable no-console dlint rule (#25113) 2024-08-20 15:14:37 -04:00
.dprint.json feat: default to TS for file extension and support ext flag in more scenarios (#25472) 2024-09-18 21:15:13 +02:00
.editorconfig chore(tests): Remove vestiges of cli/tests folder (#22712) 2024-03-05 13:49:21 -07:00
.gitattributes chore: move cli/tests/ -> tests/ (#22369) 2024-02-10 20:22:13 +00:00
.gitignore chore: move tools/wpt to tests/wpt/runner (#22545) 2024-03-05 00:41:16 +00:00
.gitmodules chore: make remaining submodules shallow (#23441) 2024-04-18 19:45:09 +00:00
.rustfmt.toml chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
Cargo.lock fix: panic when require(esm) (#25769) 2024-09-20 23:16:10 +02:00
Cargo.toml fix: panic when require(esm) (#25769) 2024-09-20 23:16:10 +02:00
import_map.json chore: update std submodule (#25595) 2024-09-12 22:32:09 +10:00
LICENSE.md chore: update LICENSE.md to 2024 (#21833) 2024-01-06 19:14:38 -05:00
README.md chore: update references to deno_std to use JSR (#23239) 2024-04-10 17:26:35 -04:00
Releases.md chore: forward v1.46.3 release commit to main (#25425) 2024-09-04 17:16:24 +00:00
rust-toolchain.toml chore: Rust 1.80.1 (#25089) 2024-08-18 22:24:56 -04:00

Deno

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the deno mascot dinosaur standing in the rain

Deno (/ˈdiːnoʊ/, pronounced dee-no) is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults and a great developer experience. It's built on V8, Rust, and Tokio.

Learn more about the Deno runtime in the documentation.

Installation

Install the Deno runtime on your system using one of the commands below. Note that there are a number of ways to install Deno - a comprehensive list of installation options can be found here.

Shell (Mac, Linux):

curl -fsSL https://deno.land/install.sh | sh

PowerShell (Windows):

irm https://deno.land/install.ps1 | iex

Homebrew (Mac):

brew install deno

Chocolatey (Windows):

choco install deno

Build and install from source

Complete instructions for building Deno from source can be found in the manual here.

Your first Deno program

Deno can be used for many different applications, but is most commonly used to build web servers. Create a file called server.ts and include the following TypeScript code:

Deno.serve((_req: Request) => {
  return new Response("Hello, world!");
});

Run your server with the following command:

deno run --allow-net server.ts

This should start a local web server on http://localhost:8000.

Learn more about writing and running Deno programs in the docs.

Additional resources

Contributing

We appreciate your help! To contribute, please read our contributing instructions.