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<title>Deno Benchmarks</title>
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<h1>Deno Continuous Benchmarks</h1>
<p>
These plots are updated on every commit to
<a href="https://github.com/denoland/deno">master branch</a>.
</p>
<p><a href="#recent">recent data</a></p>
<p><a href="#all">all data</a> (takes a moment to load)</p>
<h3 id="exec-time">Execution time <a href="#exec-time">#</a></h3>
<p>
This shows how much time total it takes to run a few simple deno
programs:
<a
href="https://github.com/denoland/deno/blob/master/tests/002_hello.ts"
>
tests/002_hello.ts
</a>,
<a
href="https://github.com/denoland/deno/blob/master/tests/003_relative_import.ts"
>tests/003_relative_import.ts</a
>,
<a
href="https://github.com/denoland/deno/blob/master/tests/worker_round_robin_bench.ts"
>tests/worker_round_robin_bench.ts</a
>, and
<a
href="https://github.com/denoland/deno/blob/master/tests/worker_startup_bench.ts"
>tests/worker_startup_bench.ts</a
>. For deno to execute typescript, it must first compile it to JS. A
warm startup is when deno has a cached JS output already, so it should
be fast because it bypasses the TS compiler. A cold startup is when deno
must compile from scratch.
</p>
<div id="exec-time-chart"></div>
<h3 id="throughput">Throughput <a href="#throughput">#</a></h3>
<p>
Time it takes to pipe a certain amount of data through Deno.
<a
href="https://github.com/denoland/deno/blob/master/tests/echo_server.ts"
>
echo_server.ts
</a>
and
<a href="https://github.com/denoland/deno/blob/master/tests/cat.ts">
cat.ts </a
>. Smaller is better.
</p>
<div id="throughput-chart"></div>
<h3 id="req-per-sec">Req/Sec <a href="#req-per-sec">#</a></h3>
<p>
Tests HTTP server performance. 10 keep-alive connections do as many
hello-world requests as possible. Bigger is better.
</p>
<ul>
<!-- TODO rename "deno" to "deno_tcp". -->
<li>
<a
href="https://github.com/denoland/deno/blob/master/tests/http_bench.ts"
>
deno
</a>
is a fake http server that doesn't parse HTTP. It is comparable to
<a
href="https://github.com/denoland/deno/blob/master/tools/node_tcp.js"
>
node_tcp
</a>
.
</li>
<li>
<a
href="https://github.com/denoland/deno_std/blob/master/http/http_bench.ts"
>
deno_net_http
</a>
is a web server written in TypeScript. It is comparable to
<a
href="https://github.com/denoland/deno/blob/master/tools/node_http.js"
>
node_http
</a>
.
</li>
<li>
<a
href="https://github.com/denoland/deno/blob/master/tools/hyper_hello.rs"
>
hyper
</a>
is a Rust HTTP server and represents an upper bound.
</li>
</ul>
<div id="req-per-sec-chart"></div>
<h3 id="max-latency">Max Latency <a href="#max-latency">#</a></h3>
<p>
Max latency during the same test used above for requests/second. Smaller is better.
</p>
<div id="max-latency-chart"></div>
<h3 id="max-memory">Max Memory Usage <a href="#max-memory">#</a></h3>
<p>
Max memory usage during execution. Smaller is better.
</p>
<div id="max-memory-chart"></div>
<h3 id="size">Executable size <a href="#size">#</a></h3>
<p>deno ships only a single binary. We track its size here.</p>
<div id="binary-size-chart"></div>
<h3 id="threads">Thread count <a href="#threads">#</a></h3>
<p>How many threads various programs use.</p>
<div id="thread-count-chart"></div>
<h3 id="syscalls">Syscall count <a href="#syscalls">#</a></h3>
<p>
How many total syscalls are performed when executing a given script.
</p>
<div id="syscall-count-chart"></div>
</main>
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