Comments on: Zero and Shark article http://gbenson.net/?p=137 Fri, 11 Jun 2010 13:17:58 +0000 hourly 1 http://wordpress.org/?v=3.0 By: gbenson http://gbenson.net/?p=137&cpage=1#comment-77744 gbenson Fri, 02 Oct 2009 12:57:51 +0000 http://gbenson.net/?p=137#comment-77744 No problem! No problem!

]]> By: Damon Hart-Davis http://gbenson.net/?p=137&cpage=1#comment-77676 Damon Hart-Davis Thu, 01 Oct 2009 20:54:54 +0000 http://gbenson.net/?p=137#comment-77676 All done... Just moved the last of my services to the SheevaPlug from my previous laptop/server and powered down the now-unfashionable one! Power dips as low as 2.5W still, though now the plug is busy fighting off SPAM, etc, and the Ethernet light is active fairly continuously, I don't expect it to be there often. 4W or 5W is more typical, from DC, running entirely from my small off-grid solar PV system, so job done. Thanks for all the help along the way! Rgds Damon All done… Just moved the last of my services to the SheevaPlug from my previous laptop/server and powered down the now-unfashionable one!

Power dips as low as 2.5W still, though now the plug is busy fighting off SPAM, etc, and the Ethernet light is active fairly continuously, I don’t expect it to be there often.

4W or 5W is more typical, from DC, running entirely from my small off-grid solar PV system, so job done.

Thanks for all the help along the way!

Rgds

Damon

]]> By: Damon Hart-Davis http://gbenson.net/?p=137&cpage=1#comment-76190 Damon Hart-Davis Tue, 15 Sep 2009 10:12:57 +0000 http://gbenson.net/?p=137#comment-76190 Note to Xerxes: with my DC power meter I can more-or-less confirm your readings, especially at the low end, with the V1.0 SheevaPlug installer based on the 2.6.30.2 kernel with ~4 wakeup per second. Just plugging in a USB hub (with nothing downstream) adds an extra 10 wakeups per second and ~1W when idle! Rgds Damon Note to Xerxes: with my DC power meter I can more-or-less confirm your readings, especially at the low end, with the V1.0 SheevaPlug installer based on the 2.6.30.2 kernel with ~4 wakeup per second.

Just plugging in a USB hub (with nothing downstream) adds an extra 10 wakeups per second and ~1W when idle!

Rgds

Damon

]]> By: Damon Hart-Davis http://gbenson.net/?p=137&cpage=1#comment-76000 Damon Hart-Davis Sat, 12 Sep 2009 18:02:51 +0000 http://gbenson.net/?p=137#comment-76000 Well, my mains power meter is showing ~6W with a new-ish kernel, idle-ish system, and Ethernet connection. But this meter sometimes reads 3W with nothing plugged in... I'll have to wait until I switch to DC power to get a better idea. Still, less than half of my laptop at its quietist, so time to get Zero+Shark very very soon! Rgds Damon Well, my mains power meter is showing ~6W with a new-ish kernel, idle-ish system, and Ethernet connection. But this meter sometimes reads 3W with nothing plugged in… I’ll have to wait until I switch to DC power to get a better idea.

Still, less than half of my laptop at its quietist, so time to get Zero+Shark very very soon!

Rgds

Damon

]]> By: Damon Hart-Davis http://gbenson.net/?p=137&cpage=1#comment-73842 Damon Hart-Davis Tue, 18 Aug 2009 16:56:27 +0000 http://gbenson.net/?p=137#comment-73842 Nah. I don't own a car at all. My plug arrived yesterday but now I'm too busy to do anything with it for a fortnight, except plug it in to see what it consumes 'out of the box': ~7W as-is and ~8W with a SD card and USB memory stick and Ethernet connection plugged in... But my main server now runs comfortably in 256MB instead of more than twice that... Rgds Damon Nah. I don’t own a car at all.

My plug arrived yesterday but now I’m too busy to do anything with it for a fortnight, except plug it in to see what it consumes ‘out of the box’: ~7W as-is and ~8W with a SD card and USB memory stick and Ethernet connection plugged in…

But my main server now runs comfortably in 256MB instead of more than twice that…

Rgds

Damon

]]> By: gbenson http://gbenson.net/?p=137&cpage=1#comment-73710 gbenson Mon, 17 Aug 2009 08:49:52 +0000 http://gbenson.net/?p=137#comment-73710 At least you didn't buy a Prius (did you??) At least you didn’t buy a Prius (did you??)

]]> By: Damon Hart-Davis http://gbenson.net/?p=137&cpage=1#comment-73472 Damon Hart-Davis Fri, 14 Aug 2009 19:14:11 +0000 http://gbenson.net/?p=137#comment-73472 Ah ha! Now about 30 miles from me in a FedEx depot, though I'm so busy over the next couple of weeks that I doubt I'm going to get my teeth into it much before they're gone! Of course, to get to be its come from China via the US, ie about 2/3rd of the globe the wrong way, by air, eating up goodness knows what portion of any possible emissions savings... This has to be written down to 'showing that it can be done' I think! %-P Rgds Damon Ah ha! Now about 30 miles from me in a FedEx depot, though I’m so busy over the next couple of weeks that I doubt I’m going to get my teeth into it much before they’re gone!

Of course, to get to be its come from China via the US, ie about 2/3rd of the globe the wrong way, by air, eating up goodness knows what portion of any possible emissions savings… This has to be written down to ‘showing that it can be done’ I think! %-P

Rgds

Damon

]]> By: Damon Hart-Davis http://gbenson.net/?p=137&cpage=1#comment-70961 Damon Hart-Davis Sat, 18 Jul 2009 07:28:45 +0000 http://gbenson.net/?p=137#comment-70961 Next round of SheevaPlugs due for dispatch on 27th July! B^> Rgds Damon Next round of SheevaPlugs due for dispatch on 27th July! B^>

Rgds

Damon

]]> By: Damon Hart-Davis http://gbenson.net/?p=137&cpage=1#comment-69583 Damon Hart-Davis Mon, 06 Jul 2009 16:51:15 +0000 http://gbenson.net/?p=137#comment-69583 Yep. Actually I'd like something with a little bit of direct digital discrete I/O so I don't need to use my K8055 board, and either support for more SDHC or direct drive for an external low-power HDD or SSD for my ~160GB of bulk data, or another USB so I could plug both those peripherals in without a USB hub. I think that in principle I could bring one of those (SATA for example) out from the plug, and I don't think the Open RD client gives enough more to be worth the extra space and cost (and probably consumption). Still, I've just done an initial tweak of my main Web app so that it'll run comfortably within 256MB-ish, down from ~1GB minimum, ie less than half of the physical memory of the plug. Mainly took all night thinking (and working on another aspect) and then about 10 lines of code... B^> Rgds Damon Yep.

Actually I’d like something with a little bit of direct digital discrete I/O so I don’t need to use my K8055 board, and either support for more SDHC or direct drive for an external low-power HDD or SSD for my ~160GB of bulk data, or another USB so I could plug both those peripherals in without a USB hub. I think that in principle I could bring one of those (SATA for example) out from the plug, and I don’t think the Open RD client gives enough more to be worth the extra space and cost (and probably consumption).

Still, I’ve just done an initial tweak of my main Web app so that it’ll run comfortably within 256MB-ish, down from ~1GB minimum, ie less than half of the physical memory of the plug. Mainly took all night thinking (and working on another aspect) and then about 10 lines of code… B^>

Rgds

Damon

]]> By: gbenson http://gbenson.net/?p=137&cpage=1#comment-69470 gbenson Sun, 05 Jul 2009 18:37:23 +0000 http://gbenson.net/?p=137#comment-69470 What did you buy, the SheevaPlug? What did you buy, the SheevaPlug?

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