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All things Linux and GNU/Linux -- this is neither a community exclusively about the kernel Linux, nor is exclusively about the GNU operating system.Linux, GNU/Linux, free software...
Updated: 9 min 49 sec ago

Mailman 3.1.0 released

Sat, 2017-05-27 23:39

Free Project Idea - Physical Internet

Sat, 2017-05-27 18:18

Let's say things with ISP's go south in the near future, would it be possible to create a physical storage cache of popular websites and distribute like a daily subscription? Could you then call yourself an ISP?

I know people are working on distributed solutions, but this could fill a small niche if you don't really need to be connected to the Internet, basically setting up a small web front end on the client side.

submitted by /u/learntofail
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while read line . How come that it does not generate a lot of IO load?

Sat, 2017-05-27 17:59

This question is expanding the question that I suddenly realized should be valid in PHP (seeing obvious things is difficult, at least for me).

My point is,:while read line ; do ...code... done < file for a large file should generate a lot of IO requests due to the single line read from the file. If the file read is large with short lines.

Now I know that modern spinning commercial grade disk can handle around 100-150 IOps and SD cards should be around 50, so the code should be quite slow even just echoing the line read. (let's say the latency between printed lines should be noticeable)

It is different when one reads a lot of bytes at once (like with the dd switch bs=16K ), in that case the speed of reading sequentially a file (if the file is not fragmented) is more indicative than the IOps, but a sequential read won't generate that much of IO request because every IO reply would carry a lot of payload, not just a single line of data.

Said that, one can quickly verify that reading single lines is super fast (for the eye at least), why?

Is there a sort of buffering implied in the read application or is the OS prefetching the file? (so maybe similar settings are used for PHP)

Maybe also the memory controller in itself does prefetch the data?

I mean I also know that caching data is possible but foresee a read request is not always returning a cache hit, so prefetching may help, but where is it done?

submitted by /u/pier4r
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Do I make the change?

Sat, 2017-05-27 14:47

Hey guys, life long windows user here,

I am a currency trader, and I don't use much in the way of softwares,

I use the following: Metatrader 4, Firefox, telegram, Skype, Microsoft OneNote, VLC media player, veracrypt, calibre ebook manager, tor, slack, and a couple of games (AoE collection, hearth stone, etc)

I'm getting rather pissed with Microsoft, they're invading my privacy and annoying the hell out of me. I would like to leave, I hate someone giving me no privacy, but windows works with everything I have

Does anyone have a suggestion?

I keep debating Linux, but it seems a lot to learn to do the same jobs I do now

Thanks!

submitted by /u/brucey2343
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Any printed Linux magazines?

Sat, 2017-05-27 14:39

Are there any good printed Linux magazines or other sorts of publication I could subscribe to?

submitted by /u/owenthewizard
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Whatever happened to virtual appliances?

Sat, 2017-05-27 14:24

When I first read about virtual appliances I thought 'great, now I will be able to run any windows program on Linux without needing to install an entire OS in VB'

My understanding of this was that you could run a dependency analyser and then create a VB Appliance of that program containing just the program and it's dependencies. I know we have SNAP but is there an easy way to create VB appliances? I thought that one day we would be able to just pick up an appliance version of the program we want to run and install it.

submitted by /u/dtr1002
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OS doesn't need convergence. it is the Apps who need it !!

Sat, 2017-05-27 11:15

Making tablet looking OS for desktop is stupid idea. but making application who are suitable and available for smart-phone and desktop seamlessly is a must !

submitted by /u/anticeon
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'bashmarks' (directory bookmarks for bash) fork, looking for feedback

Sat, 2017-05-27 08:57

Hello! I created a fork of "bashmarks" (directory bookmarks for bash ... ) with some code improvements, the code now looks more clean and maintainable IMHO, I am looking for feedback, here is the code:

https://github.com/leogtzr/bashmarks

Thanks!

submitted by /u/leogtzr
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