aboutsummaryrefslogtreecommitdiff
path: root/build/battery
diff options
context:
space:
mode:
Diffstat (limited to 'build/battery')
-rw-r--r--build/battery/index.html60
1 files changed, 60 insertions, 0 deletions
diff --git a/build/battery/index.html b/build/battery/index.html
new file mode 100644
index 0000000..e8ab3ab
--- /dev/null
+++ b/build/battery/index.html
@@ -0,0 +1,60 @@
+<!doctype html>
+<html lang="en" id="top">
+<head>
+ <meta charset="utf-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1">
+ <link rel="icon" href="data:,">
+ <title>Improving Laptop Battery Performance on OpenBSD</title>
+ <link href="https://bt.ht/atom.xml" type="application/atom+xml" rel="alternate" title="Atom feed for blog posts" />
+ <style>*{box-sizing:border-box;}body{font-family:sans-serif;margin:0 auto;max-width:650px;padding:1rem;}img{max-width:100%;}pre{overflow:auto;}table{text-align:left;width:100%;}</style>
+</head>
+
+<nav>
+ <a href="#menu">Menu &darr;</a>
+</nav>
+
+<main>
+<h1>Improving Laptop Battery Performance on OpenBSD</h1>
+<p>2023-06-13</p>
+<p>It is no secret that OpenBSD has poor battery performance on laptops. Although not as impressive as something like Alpine Linux or FreeBSD, you can tweak OpenBSD <em>just enough</em> to squeeze more life out of your machine's battery.</p>
+<h2>Our New Best Friend: <code>ampd</code></h2>
+<p>I won't go into great detail about <code>ampd</code> here - that's what the incredible <a href="https://man.openbsd.org/apmd">documentation is for</a>. You'll want to make sure to start it before trying to configure it:</p>
+<pre><code>doas rcctl start apmd
+</code></pre>
+<p>If already running in a live session, you can default to <code>-A</code> (auto) but I suggest setting cpu performance to low:</p>
+<pre><code>apm -L
+</code></pre>
+<p>To make these changes permanent on boot:</p>
+<pre><code>doas rcctl set apmd flags -L
+</code></pre>
+<p>Optimizating battery life via <code>ampd</code> will have the most noticable impact but you can improve things even further by implementing some extra "small" performance wins.</p>
+<h2>Small Performance Wins</h2>
+<ol>
+<li>Reduce your screen's brightness (<code>xbacklight -set 50</code>)</li>
+<li>Use a lightweight window manager instead of a beefer desktop environment</li>
+<li>Enable battery saving options in your system BIOS (if available)</li>
+<li>Disable the fingerprint scanner and bluetooth in your system BIOS (if available)</li>
+<li>Use utilities such as <code>mpv</code> and <code>ffmpeg</code> for media consumption</li>
+<li>Reduce the number of open applications at any given time</li>
+</ol>
+<footer role="contentinfo">
+ <h2>Menu Navigation</h2>
+ <ul id="menu">
+ <li><a href="/">Home</a></li>
+ <li><a href="/projects">Projects</a></li>
+ <li><a href="/uses">Uses</a></li>
+ <li><a href="/wiki">Wiki</a></li>
+ <li><a href="/resume">Resume</a></li>
+ <li><a href="/colophon">Colophon</a></li>
+ <li><a href="/now">Now</a></li>
+ <li><a href="/donate">Donate</a></li>
+ <li><a href="/atom.xml">RSS</a></li>
+ <li><a href="#top">&uarr; Top of the page</a></li>
+ </ul>
+ <small>
+ Built with <a href="https://git.sr.ht/~bt/barf">barf</a>. <br>
+ Maintained with ♥ for the web. <br>
+ Proud supporter of <a href="https://usefathom.com/ref/DKHJVX">Fathom</a> &amp; <a href="https://nextdns.io/?from=74d3p3h8">NextDNS</a>. <br>
+ The content for this site is <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.<br> The <a href="https://git.sr.ht/~bt/bt.ht">code for this site</a> is <a href="https://git.sr.ht/~bt/bt.ht/tree/master/item/LICENSE">MIT</a>.
+ </small>
+</footer> \ No newline at end of file