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Comment: Re:Sales Pitch (Score 2) 339

by mathew7 (#44004569) Attached to: Intel Removes "Free" Overclocking From Standard Haswell CPUs

VT-d is not only for servers. I found it's use because of my countless cycles of attempts to dual-boot windows and linux (as in I eventually ended using just windows...repeat afte 6 months).
Now I boot linux, do the web browsing and stuff, but when I want to play, I just start my VM and play.
Linux: i5-2500 IGP
Windows: Radeon 7950 (started with 5850)
My over 80 hours of Skyrim are Xen exclusive. DeusEx HR was maybe 20-30h native, followed by more than 50h in VM.
This is my original post (closed since then): http://www.tomshardware.co.uk/forum/336186-33-full-gaming-virtual-machine
This is another thread that I joined and posted some benchmarks: http://hardforum.com/showpost.php?p=1039531303&postcount=27

Comment: Re:Not as real a threat as on Microsoft Windows (Score 1) 252

by mathew7 (#43869937) Attached to: Ask Slashdot: Is GNU/Linux Malware a Real Threat?

Just bear in mind that there are maybe 20 kernel binaries for Windows (XP, Vista, 7, 8, each with their own service packs), which represent ALL of the windows installs, whereas we have thousands of binaries for linux at a certain moment (each distro with at least 1 kernel update/month from maintainers, but maybe not everyone applies it at the same time).
So again, why would anyone target linux?

Comment: Re:Helps but not a complete solution. (Score 1) 953

by mathew7 (#43522901) Attached to: Some Windows XP Users Can't Afford To Upgrade

While me and you would be able to handle a VM, think about medical personell that have no idea of a VM. How do you explain them that "you start your PC, but to use the application for work, you need to start your VM which is actually like another PC". Not to mention if each person needs to be logged-on with their own credentials.
Also, since we are talking medical, isn't there any HW involved?

Comment: Re:Better answer (Score 1) 572

by mathew7 (#43376995) Attached to: Microsoft Creative Director 'Doesn't Get' Always-On DRM Concerns

(1) A vacuum cleaner is almost a necessity, a console is a luxury. While there are other ways to clean a carpet, they are generally much more effort intensive.

I would add the psychological factors:
- vacuum cleaners reduce an unwanted-in-the-first-place repetitive actions time (you have to clean, every week of the year doing the same thing, for years...which is depressing)
- consoles increase enjoyment during "normal"/boring times. You could do other things, but usually they don't increase your depression.

The problem with the consoles (and games in general) is that too long use raises the enjoyment requirement, thus increasing the depression factor. Let's be honest, games don't increase your creativity...they go as developers planned (I mean...instead of playing, go build something...which is more creative?).
And that is why people tend to look at it as "necessity".

PS: I am a game addict, and I got to a point that I want the enjoyment now....I don't enjoy the path anymore, just the destination (which is too short). I don't even have patience for watching movies.

Comment: Re:I hope they make the right decision.... (Score 1) 154

As a completion, BitLocker may be another reason for the small boot partition.
But the concept of UEFI booting is not to use the 1st LBA to load the OS. That still remains but it's called BIOS-emulation.
You know the old "installed OS menu" concept where one OS has to know about another (like dual/triple-booting)? With UEFI that is gone, as each OS will add it's own booting instructions (description + bootloader file + UEFI parameters) without erasing/changing the others (well, it can, but it's against the UEFI specs). So now the UEFI loads a FILE which can reside on the 20th HDD.

PS: My previous server MB (Intel DG45FC) seems to freeze the boot process when I have a HDD with a linux partition (ext3) and extlinux installed on it. It seems to me that it ignored the MBR partition ID and started probing the FS and basically treating the boot code as FS parameters. I mentioned this because UEFI tries to read all partitions for known filesystems (mainly FAT).

Comment: Re:I hope they make the right decision.... (Score 3, Informative) 154

That kind of virus protection was present in older BIOS implementations, while win9x/ME was still present. With Win2K/XP, no such protections work (for MBR booting) because other drivers are accessing the HW directly (and you cannot enforce on HW because that would prevent repartitioning).
For UEFI-booting, the UEFI firmware has a complete path to a partition+file. There is no way to protect a single file with a compromised OS.

Comment: Re:I hope they make the right decision.... (Score 2) 154

My experice comes from Lenovo with Win8 consumer preview.
Used win7 (from lenovo) and debian, both through UEFI.
Installed win8 CP over win7. 1st problem: i could no longer change the boot order. I could boot both OSes, but I could not boot linux without boot menu.
So I used the UEFI tool from debian to change the order.....debian booted by default...but win8 refused to boot.
No option to disable secure boot.

So my opinion, MS is to blame only for forcing secure-boot, leading to OEM delivering incomplete implementations.

Comment: Re:HUD (Score 1) 375

by mathew7 (#43270447) Attached to: Lawmakers Seek To Ban Google Glass On the Road

Yeah....but those HUDs are certified by the same lawmakers. And they are implemented by car makers that risk the entire car being delayed because of "too much info" in the HUD.
As for after-market HUDs, they also should be certified, as laws don't allow anything uncertified between head and windshiled. But these uncertified devices are easier to control (like fines for using them uncertified) because once installed, they are not easily removed (like Google Glasses).

Comment: Re:Better question (Score 1) 749

by mathew7 (#43255501) Attached to: Can You Really Hear the Difference Between Lossless, Lossy Audio?

I wonder who selected the test music? Like many already commented, some music sounds better than other at same rate of lossy compression. Not to mention the encoder itself.
Just make sure you listen to one tune from your original CD is a quiet room and then switch to it's mp3. Difference comes from comparison, and if you can't accurately remember one sample while playing the other, you can't make a comparison. Oh...and you can test them with you 2$ earbuds. If there is something to be found, you will find it.

Do remember that any statistics can be skewed to show one result or the other, when infact the truth is right in the middle.

PS: the article you point to has only a few paragraphs for lossy compression, with no conclusion. Nice read (I already agree that CD-quality is enough)...but....

Comment: Re:Better question (Score 1) 749

by mathew7 (#43255453) Attached to: Can You Really Hear the Difference Between Lossless, Lossy Audio?

Please stop comparing analog reproduction with digital artifacts. Lossy compression brings artifacts. For example take a single note on an instrument which produces a range of frequencies, something like a gauss curve. The lossy compression in this case would just cut the ends of the range. This is related to low-amplitude (low-volume) frequencies. This can be heard even on cheap gear provided the ambient noise is low enough. But the question is: do you actually know how the instrument has to sound?

If you listen to just mp3s, then ok...you say mp3s are as good as the original. But did you listen to the original as much as the mp3? Did you listen to it in a low-noise ambient (something like goind-to-sleep enviroment)? Even the cheapest gear can show you the artifacts. And once you found them, you will always hear them.
Ok...maybe I sound like I say that cheap vs. quality equipment makes no difference. That is not true. Reproduction quality does make a difference of how you spot the artifacts, but the idea is that the difference is not that big. I think most artifacts can be spotted in low-ambient noise enviroment, which is usually not associated with cheap equipment. Compact PC speakers? Gaming/office computers (where focus is on the screen, not audio). Earbuds? Portable on the (noisy) street (to exchange enviroment noise with music). Hi-fi gear? Dark, silent HT room.

As a side note, while many people cannot differentiate lossy vs lossless (or did not have the right enviroment), I noticed very annoing artifacts on recompression: I made a local-network radio station (because I got tired with 3 devices with it's own playlist) with 320Kbps MP3 streaming, and when I got to hear a 128Kbps song, I had to stop it after 10 seconds (I'm talking about rock which some say it's hardest to spot). The original 128Kb song was good enough, but recompressed (even to higher bitrate) was terrible. Now I have 2 streams, one flac for devices that support it, and one 320Kbps mp3 for those that don't or when I want to listen away from home (well, Logitech insists on checking my private streams, so I had to make them available outside). And I avoid mp3 files as much as I can.

Comment: Re:Low end, in house? (Score 2) 104

by mathew7 (#43065555) Attached to: Embedded Developers Prefer Linux, Love Android

I work in automotive non-UI enviroment. And I can tell you that the OS is very minimal. It hooks to a timer interrupt and executes predefined tasks based on timer. It has no memory sharing, no drivers, no filesystems. It just handles context switches.
So me knowing about it, I can tell you that yes, you can make a working OS in one afternoon.

+ - Carmakers Oppose opening up 5GHZ Spectrum Space for unlicensed WiFi->

Submitted by s122604
s122604 (1018036) writes "Automakers aren't too happy about a recent U.S. Federal Communications Commission (FCC) proposal, which uses part of the wireless spectrum assigned to vehicle-to-vehicle technology for Wi-Fi instead.

The FCC announced that it plans to free up 195 MHz of spectrum in the 5 GHz band for unlicensed use in an effort to address the U.S.' spectrum crisis. This could potentially lead to Wi-Fi speeds faster than 1 gigabit per second."

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