Files
firezone/rust
dependabot[bot] 9067c2604a build(deps): Bump divan from 0.1.14 to 0.1.17 in /rust (#7576)
Bumps [divan](https://github.com/nvzqz/divan) from 0.1.14 to 0.1.17.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/nvzqz/divan/blob/main/CHANGELOG.md">divan's
changelog</a>.</em></p>
<blockquote>
<h2>[0.1.17] - 2024-12-04</h2>
<h3>Changed</h3>
<ul>
<li>
<p>Set [MSRV] to 1.80 for [<code>LazyLock</code>] and new
<code>size_of</code> prelude import.</p>
</li>
<li>
<p>Reduced thread pool memory usage by many kilobytes by using
rendezvous
channels instead of array-based channels.</p>
</li>
</ul>
<h2>[0.1.16] - 2024-11-25</h2>
<h3>Added</h3>
<ul>
<li>
<p>Thread pool for reusing threads across multi-threaded benchmarks. The
result
is that when running Divan benchmarks under a sampling profiler, the
profiler's output will be cleaner and easier to understand. (<a
href="https://redirect.github.com/nvzqz/divan/issues/37">#37</a>)</p>
</li>
<li>
<p>Track the maximum number of allocations during a benchmark.</p>
</li>
</ul>
<h3>Changed</h3>
<ul>
<li>
<p>Make private <code>Arg::get</code> trait method not take
<code>self</code>, so that text editors
don't recommend using it. (<a
href="https://redirect.github.com/nvzqz/divan/issues/59">#59</a>)</p>
</li>
<li>
<p>Cache <code>BenchOptions</code> using <code>LazyLock</code> instead
of <code>OnceLock</code>, saving space and
simplifying the implementation.</p>
</li>
</ul>
<h2>[0.1.15] - 2024-10-31</h2>
<h3>Added</h3>
<ul>
<li>
<p>[<code>CyclesCount</code>] counter to display cycle throughput as
Hertz.</p>
</li>
<li>
<p>Track the maximum number of bytes allocated during a benchmark.</p>
</li>
</ul>
<h3>Removed</h3>
<ul>
<li>Remove <code>has_cpuid</code> polyfill due to it no longer being
planned for Rust, since
CPUID is assumed to be available on all old x86 Rust targets.</li>
</ul>
<h3>Fixed</h3>
<ul>
<li>
<p>List generic benchmark type parameter <code>A&lt;4&gt;</code> before
<code>A&lt;32&gt;</code>. (<a
href="https://redirect.github.com/nvzqz/divan/issues/64">#64</a>)</p>
</li>
<li>
<p>Improve precision by using <code>f64</code> when calculating
allocation count and sizes
for the median samples.</p>
</li>
<li>
<p>Multi-thread allocation counting in <code>sum_alloc_tallies</code> on
macOS was loading a
null pointer instead of the pointer initialized by
<code>sync_threads</code>.</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="899cd5ec69"><code>899cd5e</code></a>
Release v0.1.17</li>
<li><a
href="d450e6de4f"><code>d450e6d</code></a>
Set MSRV to 1.80</li>
<li><a
href="f5ff95b031"><code>f5ff95b</code></a>
Use <code>size_of</code> from the prelude</li>
<li><a
href="d214f882e2"><code>d214f88</code></a>
Allow <code>needless_lifetimes</code> Clippy lint</li>
<li><a
href="5499bc3058"><code>5499bc3</code></a>
Reduce thread pool memory usage</li>
<li><a
href="823b16001f"><code>823b160</code></a>
Add internal benchmark for <code>ThreadPool::broadcast</code></li>
<li><a
href="414ace96ad"><code>414ace9</code></a>
Use more consistent wording in thread pool docs</li>
<li><a
href="99a329b1d4"><code>99a329b</code></a>
add default for BenchArgs</li>
<li><a
href="9800477791"><code>9800477</code></a>
Release v0.1.16</li>
<li><a
href="11a44b8c98"><code>11a44b8</code></a>
Use <code>mach2</code> crate for <code>mach_thread_self</code>
example</li>
<li>Additional commits viewable in <a
href="https://github.com/nvzqz/divan/compare/v0.1.14...v0.1.17">compare
view</a></li>
</ul>
</details>
<br />


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</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
2024-12-29 08:38:48 +00:00
..
2023-05-10 07:58:32 -07:00

Rust development guide

Firezone uses Rust for all data plane components. This directory contains the Linux and Windows clients, and low-level networking implementations related to STUN/TURN.

We target the last stable release of Rust using rust-toolchain.toml. If you are using rustup, that is automatically handled for you. Otherwise, ensure you have the latest stable version of Rust installed.

Reading Client logs

The Client logs are written as JSONL for machine-readability.

To make them more human-friendly, pipe them through jq like this:

cd path/to/logs  # e.g. `$HOME/.cache/dev.firezone.client/data/logs` on Linux
cat *.log | jq -r '"\(.time) \(.severity) \(.message)"'

Resulting in, e.g.

2024-04-01T18:25:47.237661392Z INFO started log
2024-04-01T18:25:47.238193266Z INFO GIT_VERSION = 1.0.0-pre.11-35-gcc0d43531
2024-04-01T18:25:48.295243016Z INFO No token / actor_name on disk, starting in signed-out state
2024-04-01T18:25:48.295360641Z INFO null

Benchmarking on Linux

The recommended way for benchmarking any of the Rust components is Linux' perf utility. For example, to attach to a running application, do:

  1. Ensure the binary you are profiling is compiled with the release profile.
  2. sudo perf record -g --freq 10000 --pid $(pgrep <your-binary>).
  3. Run the speed test or whatever load-inducing task you want to measure.
  4. sudo perf script > profile.perf
  5. Open profiler.firefox.com and load profile.perf

Instead of attaching to a process with --pid, you can also specify the path to executable directly. That is useful if you want to capture perf data for a test or a micro-benchmark.