Comment analyser le rendement de Powertop pour augmenter la durée de vie de la batterie
Je suis nouveau à Ubuntu en utilisant 12.04LTS. S'il vous plaît, aidez-moi par étapes. Merci à tous.
anoy@ubuntu:~$ cat /proc/sys/vm/laptop_mode
5
PowerTOP 1.97 Vue d'ensemble Statistiques sur la veille Statistiques sur la fréquence Statistiques sur le périphérique Réglables
La batterie indique un taux de décharge de 21,7 W
Résumé: 551.2 wakeups/seconde, 0.0 ops GPU/seconde et 0.0 ops VFS/s
Usage Events/s Category Description
43.7 ms/s 229.1 Process /usr/lib/firefox-trunk/fi
17.0 ms/s 109.0 Process /usr/bin/X :0 -auth /var/
2.1 ms/s 42.7 Timer tick_sched_timer
4.2 ms/s 35.5 Process metacity
1.1 ms/s 34.9 Timer hrtimer_wakeup
184.2 ms/s 16.9 Process [loop0]
1.4 ms/s 16.1 Interrupt [44] i915
1.5 ms/s 8.4 Interrupt [16] ehci_hcd:usb1
2.7 ms/s 6.7 Process /usr/bin/ibus-daemon --xi
585.4 ms/s 7.4 Interrupt [7] sched(softirq)
289.0 ms/s 6.2 Process mount.ntfs /dev/disk/by-uuid
1.4 ms/s 5.5 Process /usr/lib/bamf/bamfdaemon
2.0 ms/s 5.2 Process gnome-terminal
1.6 ms/s 3.6 Process unity-2d-Shell
0.8 ms/s 2.9 Process unity-2d-panel
7.1 ms/s 0.1 kWork ieee80211_scan_work
0.8 ms/s 2.5 Process //bin/dbus-daemon --fork
61.4 ms/s 2.5 Process [ktpacpi_nvramd]
382.4 ms/s 2.1 Process /usr/lib/gnome-settings-daem
193.2 ms/s 2.0 Interrupt [4] block(softirq)
2.2 ms/s 0.9 Process /usr/bin/python /usr/shar
317.0 ms/s 1.5 Process /usr/lib/at-spi2-core/at-spi
4.0 ms/s 0.0 Process [kworker/u:2]
168.6 ms/s 1.0 Process /bin/dbus-daemon --config-fi
42.7 ms/s 0.8 kWork ieee80211_iface_work
41.7 ms/s 0.8 Process /usr/lib/gvfs/gvfs-afc-volum
5.0 ms/s 0.8 kWork cfq_kick_queue
212.1 ms/s 0.7 Interrupt [9] RCU(softirq)
313.1 ms/s 0.3 Process /usr/lib/unity/unity-panel-s
9.6 ms/s 0.4 kWork i915_gem_retire_work_handler
La batterie indique un taux de décharge de 18,7 W
Usage Device name
8.8% CPU use
73.3% Display backlight
73.3% Display backlight
29.8% Display backlight
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
100.0% PCI Device: Intel Corporation 2nd Generation Core Proc
100.0% PCI Device: Realtek Semiconductor Co., Ltd. RTL8188CE
100.0% USB Device: usb-device-04b3-3107
100.0% PCI Device: Realtek Semiconductor Co., Ltd. RTL8111/81
100.0% USB device: EHCI Host Controller
100.0% PCI Device: Advanced Micro Devices [AMD] nee ATI Seymo
100.0% PCI Device: Ricoh Co Ltd Device e823
100.0% PCI Device: Intel Corporation Xeon E3-1200/2nd Generat
100.0% PCI Device: Intel Corporation 2nd Generation Core Proc
100.0% Radio device: rtl8192ce
100.0% USB Device: usb-device-8087-0024
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chi
71.1 pkts/s Network interface: wlan0 (rtl8192ce)
0.0 pkts/s Network interface: eth0 (r8169)
0.0 rpm Laptop fan
0.0% Radio device: thinkpad_acpi
0.0% Audio codec hwC0D0: Conexant
0.0% Audio codec hwC0D3: Intel
Réglables
Bad Enable SATA link power management for /dev/sda<br/>
Bad NMI watchdog should be turned off<br/>
Bad VM writeback timeout<br/>
Bad Autosuspend for unknown USB device 1-1.3 (04b3:3107)<br/>
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI<br/>
Bad Runtime PM for PCI Device Intel Corporation 2nd Generation Core Processor Family Int<br/>
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family MEI<br/>
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family USB<br/>
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI<br/>
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI<br/>
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI<br/>
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family 6 po<br/>
Bad Runtime PM for PCI Device Advanced Micro Devices [AMD] nee ATI Seymour [Radeon HD 64<br/>
Bad Runtime PM for PCI Device Intel Corporation Xeon E3-1200/2nd Generation Core Process<br/>
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI<br/>
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family USB<br/>
Good Enable Audio codec power management<br/>
Good Power Aware CPU scheduler<br/>
Good Autosuspend for USB device EHCI Host Controller [usb1]<br/>
Good Autosuspend for unknown USB device 2-1 (8087:0024)<br/>
Good Autosuspend for USB device Integrated Camera (Ricoh Company Ltd.)<br/>
Good Autosuspend for USB device EHCI Host Controller [usb2]<br/>
Good Autosuspend for unknown USB device 1-1 (8087:0024)<br/>
Good Runtime PM for PCI Device Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi<br/>
Good Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family High<br/>
Good Runtime PM for PCI Device Ricoh Co Ltd Device e823<br/>
Good Runtime PM for PCI Device Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express<br/>
Good Runtime PM for PCI Device Intel Corporation 2nd Generation Core Processor Family DRA<br/>
Good Wake-on-lan status for device eth0<br/>
Good Wake-on-lan status for device wlan0<br/>
Good Using 'ondemand' cpufreq governor<br/>
J'ai fait des tests sur différentes machines pour Precise 12.04 LTS sur les paramètres powertop Good/Bad. Mes résultats de recherche sont ici:
http://kernel.ubuntu.com/~cking/power-benchmarking/powertop-good-bad-recommendations/results.txt
..et données complémentaires ici:
Les modifications les moins risquées que nous avons apportées au paquetage pm-utils dans Precise permettent d’économiser de l’énergie sur la batterie des ordinateurs portables.
En utilisant un multimètre de haute précision, il était évident que certaines "bonnes" recommandations d'économies de powertop pourraient en fait ne pas être aussi utiles. Vous devez donc faire beaucoup d'essais et d'erreurs ainsi qu'un moyen précis d'évaluer la consommation d'énergie afin de vous assurer de choisir la configuration optimale. pour votre matériel.
Si vous souhaitez en savoir plus sur le travail d'économie d'énergie réalisé dans Precise, veuillez vous reporter à: https://wiki.ubuntu.com/Kernel/PowerManagement