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Divy Srivastava 11b3bccf30
perf: avoid multiple calls to runMicrotask (#26378)
Improves HTTP throughput by 8-9k rps on Linux:

this patch
```
Requests/sec: 145001.69
Transfer/sec:     20.74MB
```

main
```
Requests/sec: 137866.61
Transfer/sec:     19.72MB
```

The improvements comes from the reduced number of calls to
`op_run_microtask` per request. Returning `true` from a macrotask
callback already calls `op_run_microtask` so the extra call was
redundant.

Here's `--strace-ops` output for a single request:

main
```
[     4.667] op_http_wait                                       : CompletedAsync Async
[     4.667] op_run_microtasks                                  : Dispatched Slow
[     4.668] op_http_try_wait                                   : Dispatched Slow
[     4.668] op_http_try_wait                                   : Completed Slow
[     4.668] op_http_wait                                       : Dispatched Async
[     4.668] op_http_set_response_header                        : Dispatched Slow
[     4.668] op_http_set_response_header                        : Completed Slow
[     4.669] op_http_set_response_body_text                     : Dispatched Slow
[     4.669] op_http_set_response_body_text                     : Completed Slow
[     4.669] op_run_microtasks                                  : Completed Slow
[     4.669] op_has_tick_scheduled                              : Dispatched Slow
[     4.669] op_has_tick_scheduled                              : Completed Slow
[     4.669] op_run_microtasks                                  : Dispatched Slow
[     4.669] op_run_microtasks                                  : Completed Slow
[     4.669] op_run_microtasks                                  : Dispatched Slow
[     4.669] op_run_microtasks                                  : Completed Slow
```

this pr
```
[     3.726] op_http_wait                                       : CompletedAsync Async
[     3.727] op_run_microtasks                                  : Dispatched Slow
[     3.727] op_http_try_wait                                   : Dispatched Slow
[     3.727] op_http_try_wait                                   : Completed Slow
[     3.727] op_http_wait                                       : Dispatched Async
[     3.727] op_http_set_response_header                        : Dispatched Slow
[     3.728] op_http_set_response_header                        : Completed Slow
[     3.728] op_http_set_response_body_text                     : Dispatched Slow
[     3.728] op_http_set_response_body_text                     : Completed Slow
[     3.728] op_run_microtasks                                  : Completed Slow
[     3.728] op_run_microtasks                                  : Dispatched Slow
[     3.728] op_run_microtasks                                  : Completed Slow
```
2024-10-25 02:09:34 +02:00
.cargo feat: bring back WebGPU (#20812) 2023-12-09 01:19:16 +01:00
.devcontainer chore: remove protoc dep from CI (#26050) 2024-10-07 15:11:31 +00:00
.github Revert "ci: use self-hosted mac arm runner (#26366)" (#26408) 2024-10-25 02:09:33 +02:00
bench_util 2.0.2 (#26374) 2024-10-18 01:28:36 +02:00
cli fix(info): resolve workspace member mappings (#26350) 2024-10-25 02:09:32 +02:00
ext perf: avoid multiple calls to runMicrotask (#26378) 2024-10-25 02:09:34 +02:00
resolvers 2.0.2 (#26374) 2024-10-18 01:28:36 +02:00
runtime refactor(ext/webgpu): use concrete error type (#26198) 2024-10-25 02:09:33 +02:00
tests fix(info): resolve workspace member mappings (#26350) 2024-10-25 02:09:32 +02:00
tools tests: enable package_json_node_modules_none (#25825) 2024-10-04 09:56:13 +00:00
.dlint.json chore: enable no-console dlint rule (#25113) 2024-08-20 15:14:37 -04:00
.dprint.json refactor: move ByonmNpmResolver to deno_resolver (#25937) 2024-09-30 13:33:32 +00:00
.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 refactor(ext/webgpu): use concrete error type (#26198) 2024-10-25 02:09:33 +02:00
Cargo.toml refactor(ext/fs): use concrete error types (#26317) 2024-10-25 02:09:32 +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 2.0.2 (#26374) 2024-10-18 01:28:36 +02:00
rust-toolchain.toml chore: upgrade to rust 1.81.0 (#26261) 2024-10-15 21:40:07 +05:30

Deno

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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.