{"id":244,"date":"2010-01-16T03:38:22","date_gmt":"2010-01-16T03:38:22","guid":{"rendered":"https:\/\/umarzuki.org\/blog\/?p=244"},"modified":"2010-01-16T03:38:22","modified_gmt":"2010-01-16T03:38:22","slug":"teknik-penjimatan-tenaga-dengan-cpu-scaling","status":"publish","type":"post","link":"https:\/\/umarzuki.org\/blog\/2010\/01\/16\/teknik-penjimatan-tenaga-dengan-cpu-scaling\/","title":{"rendered":"Teknik penjimatan tenaga dengan CPU scaling"},"content":{"rendered":"<p>Contoh menggunakan Debian Lenny pada komputer riba Presario <a href=\"http:\/\/h10025.www1.hp.com\/ewfrf\/wc\/product?product=3791934&#038;lc=en&#038;cc=us&#038;dlc=en&#038;lang=en&#038;cc=us\">CQ40-115AU<\/a> dengan pemproces mikro AMD Turion X2 RM-7. Teknik ini akan menjadikan komputer riba anda hanya menggunakan kuasa pemprosesan tambahan jika perlu.<\/p>\n<p>Anda perlu pasang pakej cpufrequtils sysfsutils sebagai root<br \/>\n<code>aptitude install cpufrequtils sysfsutils<\/code><\/p>\n<p>Muatkan modul yang diperlukan<br \/>\n<code>modprobe powernow_k8<br \/>\nmodprobe cpufreq_ondemand<\/code><\/p>\n<p>Tetapkan cpu scaling governor ondemand pada kedua-dua pemproses mikro (AMD X2 mempunyai 2 pemproses mikro)<br \/>\n<code>echo ondemand > \/sys\/devices\/system\/cpu\/cpu0\/cpufreq\/scaling_governor<br \/>\necho ondemand > \/sys\/devices\/system\/cpu\/cpu1\/cpufreq\/scaling_governor<\/code><\/p>\n<p>Tetapkan supaya kedua-dua modul tersebut dimuatkan semasa komputer anda memuatkan sistem operasinya<br \/>\n<code>echo powernow_k8 >> \/etc\/modules<br \/>\necho cpufreq_ondemand >> \/etc\/modules<\/code><\/p>\n<p>Sekarang hasil yang sepatutnya adalah seperti berikut apabila anda menaip<br \/>\n<code>cpufreq-info<\/code><\/p>\n<blockquote><p>cpufrequtils 004: cpufreq-info (C) Dominik Brodowski 2004-2006<br \/>\nReport errors and bugs to cpufreq@lists.linux.org.uk, please.<br \/>\nanalyzing CPU 0:<br \/>\n  driver: powernow-k8<br \/>\n  CPUs which need to switch frequency at the same time: 0<br \/>\n  hardware limits: 500 MHz &#8211; 2.00 GHz<br \/>\n  available frequency steps: 2.00 GHz, 1000 MHz, 500 MHz<br \/>\n  available cpufreq governors: userspace, powersave, ondemand, performance<br \/>\n  current policy: frequency should be within 500 MHz and 2.00 GHz.<br \/>\n                  The governor &#8220;ondemand&#8221; may decide which speed to use<br \/>\n                  within this range.<br \/>\n  current CPU frequency is 500 MHz (asserted by call to hardware).<br \/>\n  cpufreq stats: 2.00 GHz:28.24%, 1000 MHz:0.37%, 500 MHz:71.38%  (388)<br \/>\nanalyzing CPU 1:<br \/>\n  driver: powernow-k8<br \/>\n  CPUs which need to switch frequency at the same time: 1<br \/>\n  hardware limits: 500 MHz &#8211; 2.00 GHz<br \/>\n  available frequency steps: 2.00 GHz, 1000 MHz, 500 MHz<br \/>\n  available cpufreq governors: userspace, powersave, ondemand, performance<br \/>\n  current policy: frequency should be within 500 MHz and 2.00 GHz.<br \/>\n                  The governor &#8220;ondemand&#8221; may decide which speed to use<br \/>\n                  within this range.<br \/>\n  current CPU frequency is 500 MHz (asserted by call to hardware).<br \/>\n  cpufreq stats: 2.00 GHz:29.22%, 1000 MHz:0.95%, 500 MHz:69.82%  (576)<\/p><\/blockquote>\n<p>Dan apabila anda perhatikan pada aplet CPU Frequency Scaling Monitor, anda akan nampak seperti ini<br \/>\n<a href=\"https:\/\/umarzuki.org\/blogku\/wp-content\/uploads\/2010\/01\/scale.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/umarzuki.org\/blogku\/wp-content\/uploads\/2010\/01\/scale.png\" alt=\"scale\" title=\"scale\" width=\"426\" height=\"25\" class=\"alignnone size-full wp-image-250\" \/><\/a><\/p>\n<p>Sumber maklumat: <a href=\"http:\/\/technowizah.com\/2007\/01\/debian-how-to-cpu-frequency-management.html\">http:\/\/technowizah.com\/2007\/01\/debian-how-to-cpu-frequency-management.html<\/a><\/p>\n<p>Nota: Jika terdapat sebarang masalah selepas ini, contohnya seperti sambungan ke rangkaian wayarles terputus-putus, keluarkan modul powernow_k8 dan cpufreq_ondemand dari kernel<br \/>\n<code>rmmod powernow_k8<br \/>\nrmmod cpufreq_ondemand<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Contoh menggunakan Debian Lenny pada komputer riba Presario CQ40-115AU dengan pemproces mikro AMD Turion X2 RM-7. Teknik ini akan menjadikan komputer riba anda hanya menggunakan kuasa pemprosesan tambahan jika perlu. Anda perlu pasang pakej cpufrequtils sysfsutils sebagai root aptitude install cpufrequtils sysfsutils Muatkan modul yang diperlukan modprobe powernow_k8 modprobe cpufreq_ondemand Tetapkan cpu scaling governor ondemand [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[114,115],"class_list":["post-244","post","type-post","status-publish","format-standard","hentry","category-linux","tag-cpufreq","tag-power-management"],"_links":{"self":[{"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/posts\/244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/comments?post=244"}],"version-history":[{"count":0,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/posts\/244\/revisions"}],"wp:attachment":[{"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/media?parent=244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/categories?post=244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/tags?post=244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}