top Ask Slashdot: Dealing With Electronics-Induced Inattentiveness?
... quit reading Slashdot comments,
top Help ESR Stamp Out CVS and SVN In Our Lifetime
the trouble with DVCSs is there is no repository to backup.
There are many repositories you can backup. It's a matter of policy for each project to choose which of these is the authoritative version.
Everyone has their copies and a vape in one can (and will) be propagated to the others.
It sounds like you are talking about non-fast-forward pushes. These can be disallowed, and I think that's the default but I could be wrong. It's also not necessary to allow all developers to push to the authoritative repository (which you can't do with a centralised VCS).
Its not like a centralized system where you can have proper backups.
No, it's much better.
top Samsung's Wi-Fi Upgrades Promise Speeds Up to 4.6Gbps
Also, wifi is half-duplex (no separate uplink and downlink frequencies) so any traffic in the other direction (like ACKs) reduces available bandwidth.
top NVIDIA Presents Plans To Support Mir and Wayland On Linux
You need at least:
1. Kernel driver for hardware init, power management, mode setting, GPU buffer management and command submission
2. Userland library for GPU buffer management and command submission
3. OpenGL implementation
In the open source graphics stack, the kernel driver exposes KMS and DRM interfaces and potentially others. Parts 2 and 3 are part of libdrm and Mesa respectively. The display server can (I think) be built on top of KMS, libdrm and OpenGL and be independent of the hardware. However it will need an extension to OpenGL called EGL which will be specific to each display server protocol.
Currently X doesn't usually work that way for historical reasons - it used 2D acceleration first and still supports hardware that has only 2D acceleration. So it has hardware-specific drivers for each family of GPUs. However there is the 'Glamor' library that supports 2D acceleration genericallly on top of OpenGL, and I would expect to see a gradual move to that, not least because it's the only option for 2D acceleration in XWayland.
Getting back to Nvidia, their problem currently is that they don't implement the same interfaces as the open source stack and therefore don't work with the new display servers that depend on those interfaces. Implementing KMS gets them a long way there. However it sounds like they still need to reimplement the EGL, not because it's hardware-specific but because their OpenGL implementation is entirely independent of Mesa.
top Study Finds Link Between Artificial Sweeteners and Glucose Intolerance
Despite that, Coca-Cola has now launched
a variant with stevia and Pepsi apparently has a variant with stevia (only in some markets).
top Combating Recent, Ugly Incidents of Misogyny In Gamer Culture
1. The allegations against Quinn are insinuations with no evidence behind them.
2. Sarkeesian has been loudly contradicted and claimed to be a con-woman by people that can't take criticism and are annoyed by the success of her Kickstarter.
3. This is being called "misogyny" in gaming because it is directed specifically at women.
4. The Social Justice Warriors have all supported these women because they oppose misogyny.
5. It's so cheap and easy to brand gamers basement dwelling vrigin men-children than it is to look at the facts. This is stereotyping, but it is nothing like the harrassment, online bullying, doxxing or death threats made by some gamers against feminist critics.
Fixed that for you.
top Facebook Seeks Devs To Make Linux Network Stack As Good As FreeBSD's
ASICs generally aren't flexible enough that you could simply emulate another controller in firmware, while FPGAs suck too much power to use on commodity network adapters. Writing a new driver (or bringing an existing neglected driver up to scratch) is going to be quicker than trying to make hardware that's compatible enough to work with a driver written for another vendor's controller.
(Besides which, as that other driver is probably maintained by your competitor, do you really think they're going to make an effort to ensure that their later updates are compatible with your clone controller? You'll still have to maintain your own fork.)
I have often wondered why there isn't a vendor-neutral register-level standard for Ethernet controllers, along the lines of AHCI and xHCI. There is the virtio networking standard, but as it's designed for VMs I assume it does not cover Ethernet link management. I seem to remember that VMware tried to promote a common interface for SR-IOV virtual functions at one time, but that didn't get very far. Again that would not have included link management.
top Facebook Seeks Devs To Make Linux Network Stack As Good As FreeBSD's
Right. They want FreeBSD drivers, they can put that on the requirements list for network and storage controller vendors. But that does leave the issue of where the vendors are going to find good FreeBSD hackers to write these drivers.
top Digia Spinning Off Qt Division Into New Company
Another example I noticed recently: LeCroy PETracer.
Qt by default uses native widgets wherever possible
I believe it imitates the look of native widgets but doesn't actually use them. This should allow for consistent behaviour on all platforms (unlike, say, WxWidgets).
top Under the Hood of SteamOS
It's a stock Debian kernel with some minor packaging changes and support for a new game controller. All those realtime patches? Not actually used by default.
The full list of exciting changes:
Make the binnmu regexp also reconize our build suffixes New XBox controller driver Disable Intel P-State driver as it causes issues with sound being choppy during BigPicture trailer video playback. Hard-code parallel build for now since our OBS infrastructure doesn't know how to set these options yet. Add postinst step to touch /var/run/reboot-required
top Subversion 1.8 Released But Will You Still Use Git?
Repeated merges have worked well for a while now (maybe since 1.6?). It's not quite as good at merging as git is, but it works well enough. But I have to agree with the general sentiment against merging from release to devel branches. Merging should be considered an expert-only operation (not expert in version control, but in the code base). Cherry-picking/backporting fixes from devel to release is safer because then you know exactly what you're changing.
about a year and a half ago
top Firefox Will Soon Block Third-Party Cookies
Whenever a web site has a form, some other site can set up another (hidden) form pointing to the same URL and with any values they like. Someone who visits both sites can unintentionally submit that form (together with their cookies from the first site, so it's properly authenticated). This is 'Cross Site Request Forgery' and the usual way to avoid is to check the Referer header.
top Making ZFS and DTrace Work On Ubuntu Linux
The current Debian stable release (6.0, squeeze) has kFreeBSD ports for i386 and amd64.
top The State of Linux Accessibility
Sam Hartman and Mario Lang gave a
talk and demonstration of accessibility in Debian in 2009, covering various software in Debian (and Windows). Video is linked from the talk page.
top Heartland Security Breach Class Action: Victims $1925, Lawyers $600,000
I personally haven't experienced abuse of my card details - so far as I know. But if I did, how could I tell who was responsible - especially when there are vast leaks like this? It seems like it would be more fair to have an industry-wide fund to compensate victims, which the leaking companies would pay into proportionately to the number of valid details leaked.
top Demoscene: 64k Intros At Revision Demoparty
There's not 64k of assembly pumping bytes into a framebuffer and twiddling the PC speaker port to synthesize digital audio.
Of course. But all the creative work
is squeezed into 64K.
One thing I couldn't find in there (and I've been out of the scene for a LONG time, so I don't know how this works on new-fangled fancy computers...) -- do these write directly to the video hardware? Or do they use OS services like DirectX11, etc?
They use DirectX, because that is the only way to support a reasonable range of hardware. (Also, you
can't hit the hardware without installing a new driver or exploiting a kernel bug. Neither of which is very friendly.)
But are people still getting down and counting clock cycles?
Cycle counts aren't even documented today. Now it's all about avoiding cache misses and cache invalidation.
top Intel Releases Sandy Bridge-based Xeon E5 Series
I think you're mistaken about PCIe link speeds, and you're also failing to account for the transaction layer protocol (TLP) overhead which can be quite substantial. PCIe 2.0 link speed is 5 GT/s but that's with 8b10 encoding; the data rate is only 4 Gb/s. PCIe 3.0 doubles the data rate to 8 Gb/s. Two 10G ports require 20 Gb/s plus some overhead, hence 8 lanes on PCIe 2.0 or potentially 4 lanes on PCIe 3.0.
top AWS Load Balancer Sends 2 Million Netflix API Reqs To Wrong Customer
If browsers don't impose such a minimum, devices with embedded web servers (think printers and home routers) become vulnerable to Cross-Site Request Forgery. They can potentially defend against this by checking the Host header on requests, but since these devices are only manageable through the web there's no good way to establish what the correct value is.
top Is ARM Ever Coming To the Desktop?
With Intel you have to buy a CPU, buy a north/southbridge. If you want custom interfaces beyond that, that's more chips too.
Not so. Intel has SoCs now. Apparently they're quite popular for use in IVI applications.
top Windows 8 Desktop 'Just Another App'?
Explorer isn't the window manager, although it does have some integration to make minimised windows appear within the task bar. The window manager largely runs as a library within the application (USER32.DLL). Windows 2000 added the feature that lets you force minimisation or kill the window's owner if it doesn't process window management messages quickly. (I don't know what component or process handles this.) More recently DWM.EXE was introduced to handle some window management and particularly compositing.
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