{"id":476,"date":"2025-11-30T13:19:30","date_gmt":"2025-11-30T13:19:30","guid":{"rendered":"https:\/\/deadmeat.dk\/blog\/?p=476"},"modified":"2025-12-01T12:45:41","modified_gmt":"2025-12-01T12:45:41","slug":"hvordan-goer-man-en-raspberry-pi-3-hurtig-brugbar","status":"publish","type":"post","link":"https:\/\/deadmeat.dk\/blog\/?p=476","title":{"rendered":"Hvordan g\u00f8r man en RaspBerry pi (3) hurtig \/ brugbar"},"content":{"rendered":"\n<pre class=\"wp-block-preformatted\">Jeg fik f\u00f8lgende svar fra #ChatGPT efter jeg spurgte den om:<br><strong>min raspberry pi 3 er langsom - hvordan g\u00f8r jeg den hurtigere<\/strong><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>#sudo bash -c '\n# 1. Opdater system\napt update &amp;&amp; apt full-upgrade -y\napt-get clean\napt-get autoremove -y\n\n# 2. Aktiver zRAM\n#!\/bin\/bash\n\n# ZRAM setup script for Raspberry Pi\n# Works on Raspberry Pi OS \/ Debian \/ Ubuntu\n\nset -e\n\necho \"=== Installing zram-tools ===\"\nsudo apt install -y zram-tools\necho \"=== Configuring \/etc\/default\/zramswap ===\"\nsudo cp \/etc\/default\/zramswap  \/etc\/default\/bak_zramswap &amp;&amp; sudo rm \/etc\/default\/zramswap\nsudo bash -c 'cat > \/etc\/default\/zramswap &lt;&lt;EOF\n# ZRAM swap configuration\n# Compression algorithm\nALGO=lz4\n# Size of zram device as percentage of total RAM\nPERCENT=100\n\nEOF'\n\necho \"=== Disabling regular swap (dphys-swapfile) ===\"\nif systemctl is-active --quiet dphys-swapfile; then\n    sudo dphys-swapfile swapoff\n    sudo systemctl disable --now dphys-swapfile\nfi\n\necho \"=== Enabling zram swap ===\"\nsudo systemctl restart zramswap\nsudo systemctl enable zramswap\necho \"=== ZRAM status ===\"\necho\nzramctl\necho\nswapon --show\necho\necho \"=== ZRAM setup complete! ===\"\n\n# 3. Deaktiver un\u00f8dvendige services\n#systemctl disable bluetooth.service\n#systemctl disable hciuart.service\n#systemctl disable cups.service\n\n# 4. Overclocking tweaks i config.txt\nCONFIG=\"\/boot\/config.txt\"\ngrep -q \"arm_freq\" $CONFIG || echo \"arm_freq=1350\" >> $CONFIG\ngrep -q \"gpu_freq\" $CONFIG || echo \"gpu_freq=500\" >> $CONFIG\ngrep -q \"over_voltage\" $CONFIG || echo \"over_voltage=2\" >> $CONFIG\n\n# 5. GPU RAM til 32 MB (hvis GUI bruges)\nif ! grep -q \"gpu_mem=32\" $CONFIG; then\n  echo \"gpu_mem=16\" >> $CONFIG\nfi\n\necho \"Speed-up tweaks installeret. Genstart Pi for at aktivere overclocking og zRAM.\"\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">Men f\u00f8rst :<br>Jeg har en del RaspBerry Pi og er ved at installere homebridge p\u00e5 dem til overv\u00e5gning af huset og omr\u00e5det.<br>Det f\u00f8rste jeg gjore var at installere en Raspberry PI OS (uden GUI) p\u00e5 et uSD kort.<br><br>RaspBerry PI OS imager hentes fra:<a href=\"https:\/\/www.raspberrypi.com\/software\/\">https:\/\/www.raspberrypi.com\/software\/<\/a><br>Mere hj\u00e6lp:<br><a href=\"https:\/\/www.raspberrypi.com\/documentation\/computers\/getting-started.html#installing-the-operating-system\">https:\/\/www.raspberrypi.com\/documentation\/computers\/getting-started.html#installing-the-operating-system<\/a><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"840\" height=\"579\" src=\"https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager.jpg?resize=840%2C579&#038;ssl=1\" alt=\"\" class=\"wp-image-479\" srcset=\"https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager.jpg?resize=1024%2C706&amp;ssl=1 1024w, https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager.jpg?resize=300%2C207&amp;ssl=1 300w, https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager.jpg?resize=768%2C530&amp;ssl=1 768w, https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager.jpg?w=1028&amp;ssl=1 1028w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"840\" height=\"579\" src=\"https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager2.jpg?resize=840%2C579&#038;ssl=1\" alt=\"\" class=\"wp-image-480\" srcset=\"https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager2.jpg?resize=1024%2C706&amp;ssl=1 1024w, https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager2.jpg?resize=300%2C207&amp;ssl=1 300w, https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager2.jpg?resize=768%2C530&amp;ssl=1 768w, https:\/\/i0.wp.com\/deadmeat.dk\/blog\/wp-content\/uploads\/2025\/11\/raspberry_imager2.jpg?w=1028&amp;ssl=1 1028w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jeg fik f\u00f8lgende svar fra #ChatGPT efter jeg spurgte den om:min raspberry pi 3 er langsom &#8211; hvordan g\u00f8r jeg den hurtigere Men f\u00f8rst :Jeg har en del RaspBerry Pi og er ved at installere homebridge p\u00e5 dem til overv\u00e5gning af huset og omr\u00e5det.Det f\u00f8rste jeg gjore var at installere en Raspberry PI OS (uden &hellip; <a href=\"https:\/\/deadmeat.dk\/blog\/?p=476\" class=\"more-link\">L\u00e6s videre<span class=\"screen-reader-text\"> &#8220;Hvordan g\u00f8r man en RaspBerry pi (3) hurtig \/ brugbar&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[4],"tags":[],"class_list":["post-476","post","type-post","status-publish","format-standard","hentry","category-noerd-og-hakkeri"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pdfM7C-7G","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/476","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=476"}],"version-history":[{"count":8,"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/476\/revisions"}],"predecessor-version":[{"id":489,"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/476\/revisions\/489"}],"wp:attachment":[{"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/deadmeat.dk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}