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Am Sonntag 03 Juni 2007 19:06 schrieb Ryan Sims: |
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> On 6/3/07, Florian Philipp <f.philipp@××××××.de> wrote: |
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> > Am Sonntag 03 Juni 2007 18:03 schrieb Dan Farrell: |
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> > > On Sun, 3 Jun 2007 13:16:33 +0200 |
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> > > |
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> > > Florian Philipp <f.philipp@××××××.de> wrote: |
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> > > > Am Samstag 02 Juni 2007 20:03 schrieb Jeff Horelick: |
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> > > > > Florian, |
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> > > > > |
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> > > > > That's not that big of a difference...Also, Gentoo/Linux does not |
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> > > > > have powersaving for every device like Windows XP...it's writing to |
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> > > > > the hard drive more often and it doesn't spin as much down when |
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> > > > > it's not in use to help performance. Also, if i was you, i'd be |
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> > > > > worried about your system using that LITTLE energy especially since |
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> > > > > you have a pretty hefty CPU, video card, motherboard, 2 hardrives |
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> > > > > and al the rest of your components. |
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> > > > > |
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> > > > > On 6/2/07, Florian Philipp <f.philipp@××××××.de> wrote: |
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> > > > > > Hi guys! |
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> > > > > > |
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> > > > > > I've just tested the energy consumption of my PC. Aparently |
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> > > > > > Gentoo consumes a |
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> > > > > > quiet a bit more than Windows XP: 213 W compared to 188 W |
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> > > > > > |
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> > > > > > PowerNow is activated and works on both cores (tested). The same |
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> > > > > > hardware is |
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> > > > > > plugged in and works. I'll attach the output of lspci, lsmod and |
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> > > > > > cpuinfo as |
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> > > > > > well as my world-file just in case it's related to some software. |
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> > > > > > |
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> > > > > > Is there anything I've forgotten? Where does my energy go? |
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> > > > > > |
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> > > > > > A short overview of my hardware: |
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> > > > > > |
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> > > > > > AMD Athlon64 X2 4200+ EE |
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> > > > > > Asus M2N32-SLI Deluxe (WLAN should be deactivated) |
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> > > > > > 2048 MB DDR2 Corsair |
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> > > > > > SoundBlaster Audigy 2 ZS |
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> > > > > > ATI Radeon 1950 Pro (fglrx) |
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> > > > > > 2 SATA2 HDDs |
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> > > > > > 1 SATA1 DVD-RAM |
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> > > > > > Floppy |
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> > > > > > USB mouse, keyboard and printer |
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> > > > > > TFT screen (connected via DVI) |
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> > > > |
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> > > > Well, I've forgotten to mention that I didn't substract all |
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> > > > peripheral devices. My new calculations (idle, nothing but the big |
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> > > > black box under my desk): Linux 137W, Win 114W (20% or 18EUR / 20$ |
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> > > > p.a.). |
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> > > > |
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> > > > It seems I can't disable my onboard WLAN completely and while Win |
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> > > > deactivates it because I don't provide drivers, Linux gives it some |
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> > > > power although no software is accessing it. |
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> > > > |
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> > > > By the way: Maximum output while testing with 3DMark 2006: 219W. I |
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> > > > wonder why I had to buy a 400W power supply... |
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> > > |
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> > > Maybe you can power off the wlan with a wireless-utils program, or |
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> > > maybe by unloading the kernel module? |
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> > > |
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> > > Have you set up power management, powersave frequency governors? Have |
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> > > you set up your disk(s) to idle quickly? |
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> > |
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> > There is no kernel module. I'll play around with modules, configs and |
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> > tools later. It's not urgent, it was more like a mystery that I wanted to |
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> > solve. |
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> > |
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> > Yes, powermanagement (aka "PowerNow!") is activated. No, my disks do not |
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> > spin down and should not because of the attrition (I hope that's the |
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> > right word) that comes with spinning up. |
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> |
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> [somewhat OT]: |
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> Please read this: http://labs.google.com/papers/disk_failures.pdf |
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> The damage done to hard drives in spinup/spindown is in the same |
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> category of juju as ricer cflags and cloud seeding. Drive activity |
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> and such is *not* an indicator of failure, while there may be some |
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> mechanical stress on the disk, but it's not going to cause your drive |
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> to fail noticeably earlier. Spin them down, save the power, and don't |
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> listen to fearmongers.[/OT] |
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> |
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> -- |
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> Ryan W Sims |
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|
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Thanks! |
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|
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I've known that this report exists but have newer actually seen it myself. I'm |
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still a bit reluctant because I don't suspect that HDDs in Google's server |
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farm spind down as often as mine would. |
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Well, I'll just close my eyes and hope for the best when I hear my darlings |
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shutting down. ;) |