@TomWijsman it's not that compile jobs bother me; cgroups takes care of that on modern Fedora/Ubuntu anyway. You can make -j255 and it won't bother you at all unless you start swapping because of running out of memory. But.... it's just the time it takes versus a .deb or .rpm download
@TomWijsman Ah. I'm trying to see if I'd have to do anything special to set up CeroWRT to use this router as a NAT and wireless access point for a USB RNDIS WAN connected to the USB 2.0 host port.
Basically my Android phone provides an RNDIS internet connection, complete with its own DHCP and DNS, but I want to host multiple boxes behind the router and connect them all over wifi because my cellular signal booster cuts the effective range of the wifi chipset on my phone
-flto does link-time optimization which is basically equivalent to taking your entire program (which is split up into multiple translation units, one .o per .c/.cpp file) and recompile the whole thing as if it were a single translation unit (.o file) which vastly improves codegen quality and reduces duplication and removes dead code rather than exposing it in the symbol table
@TomWijsman -ffast-math sets -funsafe-math-operations which I assume is rather, yeah, unsafe for... math that needs to be insanely accurate
it does cause noticeable performance speedups on certain desktop software that does stuff with floating point though; particularly, resampling algorithms and DSP processing algorithms related to audio or video whose source format is floating point
and the reduction in quality is truly negligible, in the full sense of the word... you literally cannot tell the difference
but scientific research can tell the difference
it's pretty great for lanczos image resampling, so it can speed up floating point textures in the OpenGL stack (mesa)
although, IIRC, mesa might already enable -ffast-math for their floating point texture translation units anyway
@sidran32: The forecast is somewhat handy and the averages page is really awesome, quite some detail there.
@allquixotic: I've actually been thinking of starting a LFS in a chrooted environment to get an even better understanding and looking if I can brew things myself, although I'd miss Portage if I'd go down that road.
CLFS :: Cross Linux From Scratch provides the means to cross-compile an LFS system on many types of systems.
This is perhaps interesting towards the RPi, although it might be an overkill...
This is how I changed YouTube, three columns! :D
Wanted to show it to HTH earlier on, now I need to wait until he's back around here...
Got to love Stylebot for this.
Heh, a form of Tetris were the blocks don't disappear but you can keep playing.
Been playing this for more than half an hour, trying to get the blocks as small as pixels to see what happens if the game attempts to make the blocks smaller than pixels. :D
@TomWijsman "Hmm... Now that you've said it I'm starting to think this is the case. Is there any way to move question other than reposting it? I wonder whether Windows 8 Challenge (win8challenge.com) allows posting questions on StackOverflow instead of SuperUser" rolleyes
@HackToHell The sides used to be black, still need to fix that. And I also used to move the title from above the video to below the video but I think they did that themselves now.
i find that rather cool... I'm going to put CeroWRT on it.
Maryland meets Hurricane Sandy in 2012: pictures from what will be ground zero in 24 hours: stores selling out of stuff...
the first one is the ice freezer, showing only one bag of (broken) ice on the shelf
the second is a shelf that is normally full of bottled water with only some water bottles left and a six pack of some beverage that someone didn't want
this was on Friday, over two days before the storm
final 802.11n base stations generally work well with draft n clients, but not so well in the reverse
@TomWijsman the main reason I'm getting it is so I can plug an RNDIS device into it (such as a smartphone) and use that as a WAN and broadcast it over a larger range using the dedicated base station hardware of the router
a good router can broadcast in multiple rooms and floors of a house; a smartphone's wifi chipset simply isn't designed for that
also, CeroWRT provides that fq_codel I was raving about the other day, so the devices sharing the network can't blot out eachothers' bandwidth with big downloads
fair queue controlled delay active queue management is to IP packets what cgroup scheduler is to CPU usage sharing... it prevents any one user from overwhelming the system with huge queues (in the case of networking, packets; in the case of the CPU, processes scheduled for CPU time)
@TomWijsman a good test for whether you'd benefit from fq_codel: start a big download and try to surf the internet... if your browsing speed is very significantly reduced, then fq_codel would cut that reduction in speed by about 80%, without seriously impacting the download speed
the main thing it does is cut down on latency for the "squished" requests (the small bandwidth HTTP requests that get backed up behind big download packets)
and in HTTP, since a lot of stuff is done in serial, latency is everything
you can't fetch a page's dependent resources until you first fetch the page itself and parse it to determine which URLs it refers to
so you pay a latency cost for every round trip, and most sites have many round trips
You have to drag the app to the left or right until you see a vertical dividing line appear in the background. Once you see that, you can release the mouse button and it should be snapped to that side of the display.
However, this feature requires at least a 1366x768 screen resolution. If your s...
I hate asking for upvotes... but I'm asking for upvotes.
