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<title>Deno Benchmarks</title>
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<a href="/"><img src="images/deno_logo_4.gif" width="200"/></a>
<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>
Make sure your adblocker is disabled as some can block the chart
rendering.
</p>
<p><a href="#recent">recent data</a></p>
<p><a href="#all">all data</a> (takes a moment to load)</p>
<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>
<li>
<a
href="https://github.com/denoland/deno/blob/master/tools/deno_tcp.ts"
>deno_tcp</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_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>
deno_core_single and deno_core_multi are two versions of a minimal
fake HTTP server. It blindly reads and writes fixed HTTP packets. It
is comparable to deno_tcp and node_tcp. This is a standalone
executable that uses
<a href="https://crates.io/crates/deno">the deno rust crate</a>. The
code is in
<a
href="https://github.com/denoland/deno/blob/master/core/examples/http_bench.rs"
>http_bench.rs</a
>
and
<a
href="https://github.com/denoland/deno/blob/master/core/examples/http_bench.js"
>http_bench.js</a
>. single uses
<a
href="https://docs.rs/tokio/0.1.19/tokio/runtime/current_thread/index.html"
>tokio::runtime::current_thread</a
>
and multi uses
<a href="https://docs.rs/tokio/0.1.19/tokio/runtime/"
>tokio::runtime::threadpool</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>
<div id="normalized-req-per-sec-chart"></div>
<input type="checkbox" id="req-per-sec-chart-show-normalized" />
<label for="req-per-sec-chart-show-normalized">Show Normalized</label>
<h3 id="proxy-req-per-sec">
Proxy Req/Sec <a href="#proxy-eq-per-sec">#</a>
</h3>
<p>
Tests proxy performance. 10 keep-alive connections do as many
hello-world requests as possible. Bigger is better.
</p>
<ul>
<li>
<a
href="https://github.com/denoland/deno/blob/master/tools/deno_tcp_proxy.ts"
>deno_proxy_tcp</a
>
is a fake tcp proxy server that doesn't parse HTTP. It is comparable
to
<a
href="https://github.com/denoland/deno/blob/master/tools/node_tcp_proxy.js"
>node_proxy_tcp</a
>
.
</li>
<li>
<a
href="https://github.com/denoland/deno/blob/master/tools/deno_http_proxy.ts"
>deno_proxy</a
>
is an HTTP proxy server written in TypeScript. It is comparable to
<a
href="https://github.com/denoland/deno/blob/master/tools/node_http_proxy.js"
>node_proxy</a
>
.
</li>
<li>
<a
href="https://github.com/denoland/deno/blob/master/tools/hyper_hello.rs"
>
hyper
</a>
is a Rust HTTP server used as the origin for the proxy tests
</li>
</ul>
<div id="proxy-req-per-sec-chart"></div>
<div id="normalized-proxy-req-per-sec-chart"></div>
<input type="checkbox" id="proxy-req-per-sec-chart-show-normalized" />
<label for="proxy-req-per-sec-chart-show-normalized"
>Show Normalized</label
>
<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="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/workers_round_robin_bench.ts"
>tests/workers_round_robin_bench.ts</a
>, and
<a
href="https://github.com/denoland/deno/blob/master/tests/workers_startup_bench.ts"
>tests/workers_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="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="bundles">Syscall count <a href="#bundles">#</a></h3>
<p>
How many total syscalls are performed when executing a given script.
</p>
<div id="syscall-count-chart"></div>
<h3 id="bundles">Bundle size <a href="#syscalls">#</a></h3>
<p>
Size of different bundled scripts.
</p>
<ul>
<li>
<a href="https://deno.land/std/http/file_server.ts">file_server</a>
</li>
<li>
<a href="https://deno.land/std/examples/gist.ts">gist</a>
</li>
</ul>
<div id="bundle-size-chart"></div>
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