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This website has 81% battery power remaining

solar.lowtechmagazine.com

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Re: This website has 81% battery power remaining

#21
post #2

It’s at 76% now. In 53 minutes since the post it has gone down 4%. So say roughly 5% per hour as a back of the envelop calculation. That’s roughly 20 hours on a full charged cycle. It would be good to know if there is a fast charge capability of the battery and how long would that be. An hour of full sun a day? Or two hours of partial sun?

Avg. CPU load is 99.5%

Re: This website has 81% battery power remaining

#22

I think this also shows how inefficient modern website hosting is. The fact that this person was able to get a raspberry pi to host the #1 website on HN powered by a small 50 watt solar panel is very cool (meaning maybe 10w average power budget), but also shouldn't be as uncommon as it is today. To put this in perspective, a modern server uses 50-100 watts idle doing nothing, and many more under load. To handle the t…

i wonder how much information is really needed on wires today

Re: This website has 81% battery power remaining

#23
post #18

I think this also shows how inefficient modern website hosting is. The fact that this person was able to get a raspberry pi to host the #1 website on HN powered by a small 50 watt solar panel is very cool (meaning maybe 10w average power budget), but also shouldn't be as uncommon as it is today. To put this in perspective, a modern server uses 50-100 watts idle doing nothing, and many more under load. To handle the t…

It's a static page... not everything is a static page in the web world.

a lot of the web would probably be better off if it were

Re: This website has 81% battery power remaining

#24

I think this also shows how inefficient modern website hosting is. The fact that this person was able to get a raspberry pi to host the #1 website on HN powered by a small 50 watt solar panel is very cool (meaning maybe 10w average power budget), but also shouldn't be as uncommon as it is today. To put this in perspective, a modern server uses 50-100 watts idle doing nothing, and many more under load. To handle the t…

It's mostly static files, if it was a modern SPA with APIs and such, it would probably crash having to fetch the same data for what is quite literally a static site.

Re: This website has 81% battery power remaining

#25

> This was caused by a software upgrade of the Linux kernel, which increased the average power use of the server from 1.19 to 1.49 watts I wonder what change in the linux kernel caused the increased load. Someone out there is responsible for this crime!

This is an area where Apple is way ahead of everyone else. A code change that increases power usage 25% wouldn’t make it past CI at Apple.

Re: This website has 81% battery power remaining

#26
post #18

Earlier quoted context omitted.

It's a static page... not everything is a static page in the web world.

a lot of the web would probably be better off if it were

I think so, WordPress that isnt cached to a frozen state on the backend is kind of silly in my eyes, the only exception would be comments, but you could hack around that by using Disqus or something, voila.

Re: This website has 81% battery power remaining

#27

I think this also shows how inefficient modern website hosting is. The fact that this person was able to get a raspberry pi to host the #1 website on HN powered by a small 50 watt solar panel is very cool (meaning maybe 10w average power budget), but also shouldn't be as uncommon as it is today. To put this in perspective, a modern server uses 50-100 watts idle doing nothing, and many more under load. To handle the t…

> a modern server uses 50-100 watts idle doing nothing

I'm really tired of hearing this. "Serverless because otherwise server doing nothing", "very small virtual machine because otherwise server doing nothing".

The server is not doing "nothing" it's waiting for incoming requests. It's like if you told "this cashier is doing nothing because there is no customers in the store".

When a server is loaded at capacity minus some margin, latencies are going up, which may not always be acceptable. Also, not every web workload scales linearly nor is cacheable and traffic patterns may not be that predictable and some requests may generate higher loads.

Managing capacity is way more involved that just "this server is doing nothing".

Also, many of these technologies supposedly reducing "idle time" such as "serverless" are usually incredibly wasteful where handling a single request may start a completely new environment and may pull resources across the globe.

Re: This website has 81% battery power remaining

#30

I think this also shows how inefficient modern website hosting is. The fact that this person was able to get a raspberry pi to host the #1 website on HN powered by a small 50 watt solar panel is very cool (meaning maybe 10w average power budget), but also shouldn't be as uncommon as it is today. To put this in perspective, a modern server uses 50-100 watts idle doing nothing, and many more under load. To handle the t…

Hey @dang, you wouldn't happen to know anything about how Hacker News is hosted, would you? Reading this has piqued my curiosity. If time / your position permits, of course.

IIRC it's just stored on someone's Dell Inspiron that they've got laying around in an office. Might be outdated info, but it's really nothing special if memory serves.
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