World: r3wp
[Tech News] Interesting technology
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Maxim 13-Jan-2011 [5622] | this is a very nice demo about security... Brian should go over this whole thing and I'm sure he'll get some ideas into increasing the security model in REBOL. |
Kaj 13-Jan-2011 [5623] | The question is, does Sony have a clue? |
Pekr 14-Jan-2011 [5624] | 1 sec Linux cold boot to Qt environment for home automatition. That's how I imagined some minimal R3 based environment :-) http://www.embedded-bits.co.uk/2011/1-second-linux-boot-to-qt/ |
shadwolf 14-Jan-2011 [5625x3] | Pekr that's the kind of stuff i like to read ... |
We've not applied any specific intellectual property but instead spent time analysing where boot delays are coming from and simply optimising them away. The majority of the modifications we make usually fall into the category of 'removing things that aren't required', 'optimising things that are required', or 'taking a new approach to solving problems' and are tailored very precisely to the needs of the 'product'. | |
and in the end it's insanely fast booting ... | |
Pekr 14-Jan-2011 [5628] | Here's graph, how they reduced execution times in particular sections - http://www.swiftboot.com/swiftBoot/Home.html |
shadwolf 14-Jan-2011 [5629x2] | yeah but this is a very super specific 1 application run environement ... |
but even ... the fluidity of boot knowing it's only a 500Mhz processor is amazing ... | |
Pekr 14-Jan-2011 [5631] | exactly - I am quite surprised, as Linux are not generally fast in boot times, and this is embedded area (Renesas chips). |
shadwolf 14-Jan-2011 [5632x2] | I like extrem stuffs like that ... It shows that hardware progress just servs people to be more lazy in their creation. At a time hardware was short and expensive people were spending zillions hours to optimise everything even going on the lower possible assembly level to have just and only the necessary. Now in days with our gigantic powerfull processor people stoped to optimise things they pile up to the sky things and don't care if it take 30 more times to execute ... |
Pekr linux is fast on boot time i mean a genuine linux ubuntu 10.10 on a 1.6 ghz procesor like my netbook boots up in 30 seconds wich isn't bad at all compare to the 5 minutes of boot time needed to start windows 7 starter ed on same machine... | |
Geomol 14-Jan-2011 [5634] | That's how computers should work in general. My new 2.53 GHz MacBook Pro with solid state drive boots in 17 seconds or so. My old iBook G4 boots in 50 seconds. Still my old 50 Mhz 68030 Amiga could boot in less than 10 seconds. |
shadwolf 14-Jan-2011 [5635x9] | then you have chromeOS which boots in 8 secs on my machine or android they are linux ... but very specialised one they are closer in that aspect to what does switchboot |
it's a know thing that when your kernel has to scan and locate proper drivers to fit your hardware in a driver library and load them as module that's the slowest way... | |
so the basic optimisation people were doing at the begining of linux was to adapt the kernel to integrate the specific driver needed for your hardware and only them... But this is flexible and doesn't fit with the hot plug need introduced by USB port and periphericals. | |
so now we have for example ubuntu 10.10 in netbook version which is basically a kernel with a driver module library that only fits the hardware you can find in the netbooks... as the hardware library is smaller then it boots faster | |
I use nosplash quiet and fast-boot options for my kernels ... doing this I gain 10 seconds in boot sequence. | |
after you can gain another 10 seconds of boot time just by using X11R6 + openbox windows manager instead of gnome + Metacity or kde etc... | |
maybe using wayland instead of x11R6 + compiz or metacity can speed up your boot sequence too | |
the closer you linux will be to your specific hardware the faster it will boot ... | |
but 1 second is still amazing .. I would say I this swichboot demo was about accessing to a regulare openbox window manager instead of a dashboard I would be already buying it :) | |
Henrik 14-Jan-2011 [5644] | Geomol, did yours come with a standard Apple SSD or your own? I'm interested in replacing the drive I have in my Macbook. |
Geomol 14-Jan-2011 [5645] | I bought it with SSD included. |
Henrik 14-Jan-2011 [5646] | ok |
Maxim 14-Jan-2011 [5647] | from cold boot, I remember being able to print a sheet on my amiga @28HMz before my friend's PC was able to finish booting Win95 on his pentium. :-) |
BrianH 14-Jan-2011 [5648] | That's what happens when you boot from ROM and implement a good chunk of the functionality in hardware rather than software :) |
GrahamC 16-Jan-2011 [5649] | Googlewave is now Apache Wave http://googlewavedev.blogspot.com/2010/12/introducing-apache-wave.html |
Henrik 29-Jan-2011 [5650] | http://www.youtube.com/watch?v=W18Z3UnnS_0 It's just getting worse and worse with those quadrocopters... |
Pekr 30-Jan-2011 [5651] | Augmented reality for cell phones from Netherlands - http://www.engadget.com/2009/06/17/video-sprxmobiles-layar-is-worlds-first-augmented-reality-bro/ |
Reichart 30-Jan-2011 [5652] | I found this more impressive... http://www.youtube.com/watch?v=ToACDIXTzo0 But.................. watch this http://www.youtube.com/watch?v=1k-u0_Y8hK0&feature=related We need to get this guy to sit down with the programmers of the Quad, and teach them how to make use of all aspects of flight. |
Oldes 30-Jan-2011 [5653] | I guess it will be pretty different. |
Henrik 31-Jan-2011 [5654] | http://www.portable-digital-video-recorder.com/shmoocon-2011-printers-gone-wild/ Networked HP printers contain a number of security issues. |
Maxim 31-Jan-2011 [5655] | I've had fun sending commands to printers a few years ago, its a lot of fun :-) |
Henrik 31-Jan-2011 [5656] | I did it too. I didn't find it particularly amusing, since different printers understand them differently. :-( |
Maxim 31-Jan-2011 [5657] | depends why you're playing with that... I was just hacking my printer for fun... trying to build a print manager... that's another story ;-) |
Henrik 31-Jan-2011 [5658] | I managed to build one, which is simple. Sending commands to the printer, I had to give up and chose to build postscript files for an adobe postscript driver instead and let it handle the rest. |
Henrik 1-Feb-2011 [5659] | http://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308/ Interesting. Java has the same flaw that PHP had with a specific number. |
Henrik 2-Feb-2011 [5660] | http://googleblog.blogspot.com/2011/02/microsofts-bing-uses-google-search.html This is almost funny. |
DideC 2-Feb-2011 [5661] | Very funny ! |
Dockimbel 2-Feb-2011 [5662] | Final IPv4 Blocks Allocated : http://www.infoq.com/news/2011/02/ipv4-exhaustion |
Henrik 4-Feb-2011 [5663] | http://bodybrowser.googlelabs.com/ Browse the human body using WebGL. |
AdrianS 4-Feb-2011 [5664] | wow - that's amazing stuff |
Pekr 7-Feb-2011 [5665] | Nokia experiments with the Bubble interface - IIRC, it is QML based (Qt's VID inspired declarative aproach, second one, after JavaFX) http://www.geek.com/articles/mobile/nokia-experiments-with-bubbles-interface-on-symbian-cell-phones-2011024/ Just not sure I want to chase bubble around to get some action done :-) |
TomBon 7-Feb-2011 [5666] | a good design characterizing itself by immediate function transparency. this is....well...what is it? |
Henrik 7-Feb-2011 [5667] | one quick improvement would be to make the bubbles not move. |
Reichart 7-Feb-2011 [5668] | LOL! (that is all I can say about the bubbles) oh wait..........now the "LOL" has floated down here in the message.......whoa..............it floated over here "LOL". LOL... |
Andreas 7-Feb-2011 [5669] | debian 6.0 "squeeze" released http://www.debian.org/News/2011/20110205a |
GrahamC 9-Feb-2011 [5670x2] | http://www.zdnet.com/blog/btl/hps-touchpad-tablet-smartphones-put-webos-back-into-the-game/44636?tag=nl.e589 HP's impressive tablet using WebOS |
snapdragon I presume is an Arm processor | |
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