The development of the Efficient XML Interchange (EXI) format was guided by five design principles, namely, the format had to be general, minimal, efficient, flexible, and interoperable. The format satisfies these prerequisites, achieving generality, flexibility, and performance while at the same time keeping complexity in check.
Many of the concepts employed by the EXI format are applicable to the encoding of arbitrary languages that can be described by a grammar. Even though EXI utilizes schema information to improve compactness and processing efficiency, it does not depend on accurate, complete or current schemas to work.
The vast majority of security vulnerabilities are merely exploits of defects!
How do you hack a system? Find a bug, that's usually pretty easy....
Then you have the system operating already, "not as the designer intended" and you're more than halfway there...just add a bit of creativity and malice aforethought.
Of course, you could just take two cotton reels and a hot glue gun and put dabs of glue on the walls of the corridor and stick the cotton to it. At the far end of the corridor have a finishing line, the reels and a name plate with the words "Thread Race"
Hmm. I'm still not getting it!
on
Running Xen
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· Score: 1
Sorry to so try your patience.... but I've reread your multiply.com article _and_ Dreppers two and I'm still grasping for a good statement along the lines...
When I want to do XXX then Xen is better than Kvm because this aspect of XXX demands YYY which Xen not Kvm provides.
Currently I'm guessing XXX is "I am an Colocation / ISP and want run a bunch of OS instances so that it effectively appears to my customers that they are the only one using this server, but actually are sharing the cost of the hardware with several others."
What I'm missing is what the YYY is that Xen provides but Kvm does not, or Kvm does so too poorly.
As far as I understand Xen requires a priviledged Dom 0 OS, (which you can't on sell to your customers), with Kvm that priviledged OS is Linux.
Is the use case then, "I am colocation ISP and for some reason I must use something other than Linux as the priviledged Dom 0 OS, and I want to run a bunch...."?
Sorry for my obtuseness.
I get the blue tooth vs Wifi analogy. Blue tooth must be wearable and off the power grid hence sacrifices speed and range for lightness and battery life. Wifi is aimed at wired in base stations serving "luggable" laptop size clients that are probably going to be plugged into a power socket, serving "a business" size area at high speed.
What I'm grasping for is a similar clear statement of fit for Xen and Kvm and the reasons.
Thanks, that was interesting...
on
Running Xen
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· Score: 1
I'm actively researching the whole area with a view to rolling the "run a windows app on an ubuntu desktop" scenario out to a collection of colleagues.
An interesting counterpoint to what you're saying is coming from Ulrich Drepper the libc guy.
Nah. It's not a UI for experts. Its a deliberately high barrier to entry set to keep the hoi polloi from the increasingly rare first rate academic posts....
Deliberately create a "slave labour" pool of grad students that first have to climb an artificially high mountain to enter the promised land....
Take the simple matter of defining terms... the amount time I have wasted in my life because some paper didn't define fully the terms he was talking about.
Some "standard" quantity... except it's a different standard quantity in this paper to that paper. Crap. Get over it, waste a paragraph and explicit define wtf you talking about.
So you just want to know what the "diff" is. That's what the executive summary is for. Now do the work of making the paper to stand up on it's own as a readable understandable entity.
Sure you need the references, but they are leads, fair attribution, and cross checks. Not paper saving devices to save you from typing a few lines of equations.
Who needs a paper copy anyway? 99% of the papers you're going to digitally search / rapidly scan read, and only 1% do you want to print and study at leisure. So it's just online bytes, not expensive library shelf space. Hell, there are more bytes in ye average students porn collection than the entire physics department journals.
Very little imagination is required to imagine a far better UI on the body of knowledge academics are being publically funded to create.
Expand on that please..
on
Running Xen
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· Score: 1
Car analogies are all well and good.... but can we have some detail on that.
They have to be written in a delibrately abbreviated and obscure form.
They can only report original work rather than synthesize and consolidate existing work.
Thus what is valuable in the field gets submerged in a torrent of crap, sometimes never to see the light of day again.
Where existing work is referenced, the reference is usually to an obscure and (unless you in a first world first rate university) unobtainable journal.
When you finally get that paper, it is a smidgeon of information packed atop an array of references to earlier work in obscurer journals.
TAKE A STEP BACK PEOPLE!
Think of all this as _the_ primary User Interface on the body of human knowledge.
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write wee scriptie that splits a file 3 ways byte 1 to file 1 byte 2 to file 2 byte 3 to file 3 byte 4 to file 1....
write wee scriptie that merges them again.
email scriptie to consultant.
tar bzip2 the files.
cut out 4 bytes from the middle of the tar ball.
hex dump the 4 bytes and read them to him over the telephone.
split the cut down tarball three ways.
scp one to him, give him an https url for another, put the third on a usb pen and snail mail it.
When he totally freaks out and starts screaming. Rename the file to GrowYourPenisNow.doc, spoof the From: header to be from hotmail.com, add a subject line V1agra and send.
THAT CHICKEN MAY BE FINGER'LICKING GOOD, BUT KEEP YOUR GREASY MITS OFF MY SCREEN!
Now you know why.
this lower caps random characters are here merely to get around/.'s lame lameness filter that doesn't understand i used all the caps above to look like yelling because that is what anybody would be doing with a high priced bleeding edge touch screen and an umfriend with greasy kfc. what fools these admin mortals be.
When it ceases to work... we'll go off and read something else.
The creators of slashdot are experts.
If they stuff up and cause slashdot to cease working.....well, tough titty, no matter who declares them to be experts... we'll be off reading something else.
Weird. Some moderator modded the parent post "offtopic".
The list _is_ the topic. What? Can't you guys cope with the reality of looking at the original data? Must you only have it fed sanitizing medium like The new York Times?
Slashdot Mirror
And then, like the compiler, ignore white space and concentrate in the semantics.
Or haven't you noticed how often you windows desktop "flickers". ie. It got hit by a watchdog restart.
Sigh!
They must be building a bomb!
The vast majority of security vulnerabilities are merely exploits of defects!
How do you hack a system? Find a bug, that's usually pretty easy....
Then you have the system operating already, "not as the designer intended" and you're more than halfway there...just add a bit of creativity and malice aforethought.
Yip, the number one problem in Ruby today is the sheer number of trolls it attracts.
Fortunately I hear Matz is going to make Proc.kill_troll part of the standard library in the next release.
In particular his "Treachery of Images"
Escher of course is traditional, but how about fonts and typographic art?
How about Symbolist artists?
Gustav Klimt
And Jan Toorop
Of course, you could just take two cotton reels and a hot glue gun and put dabs of glue on the walls of the corridor and stick the cotton to it. At the far end of the corridor have a finishing line, the reels and a name plate with the words "Thread Race"
When I want to do XXX then Xen is better than Kvm because this aspect of XXX demands YYY which Xen not Kvm provides.
Currently I'm guessing XXX is "I am an Colocation / ISP and want run a bunch of OS instances so that it effectively appears to my customers that they are the only one using this server, but actually are sharing the cost of the hardware with several others."
What I'm missing is what the YYY is that Xen provides but Kvm does not, or Kvm does so too poorly.
As far as I understand Xen requires a priviledged Dom 0 OS, (which you can't on sell to your customers), with Kvm that priviledged OS is Linux.
Is the use case then, "I am colocation ISP and for some reason I must use something other than Linux as the priviledged Dom 0 OS, and I want to run a bunch...."?
Sorry for my obtuseness.
I get the blue tooth vs Wifi analogy. Blue tooth must be wearable and off the power grid hence sacrifices speed and range for lightness and battery life. Wifi is aimed at wired in base stations serving "luggable" laptop size clients that are probably going to be plugged into a power socket, serving "a business" size area at high speed.
What I'm grasping for is a similar clear statement of fit for Xen and Kvm and the reasons.
An interesting counterpoint to what you're saying is coming from Ulrich Drepper the libc guy.
Deliberately create a "slave labour" pool of grad students that first have to climb an artificially high mountain to enter the promised land....
Take the simple matter of defining terms... the amount time I have wasted in my life because some paper didn't define fully the terms he was talking about.
Some "standard" quantity... except it's a different standard quantity in this paper to that paper. Crap. Get over it, waste a paragraph and explicit define wtf you talking about.
So you just want to know what the "diff" is. That's what the executive summary is for. Now do the work of making the paper to stand up on it's own as a readable understandable entity.
Sure you need the references, but they are leads, fair attribution, and cross checks. Not paper saving devices to save you from typing a few lines of equations.
Who needs a paper copy anyway? 99% of the papers you're going to digitally search / rapidly scan read, and only 1% do you want to print and study at leisure. So it's just online bytes, not expensive library shelf space. Hell, there are more bytes in ye average students porn collection than the entire physics department journals.
Very little imagination is required to imagine a far better UI on the body of knowledge academics are being publically funded to create.
And where does virtualbox fit in with all this?
They can only report original work rather than synthesize and consolidate existing work.
Thus what is valuable in the field gets submerged in a torrent of crap, sometimes never to see the light of day again.
Where existing work is referenced, the reference is usually to an obscure and (unless you in a first world first rate university) unobtainable journal.
When you finally get that paper, it is a smidgeon of information packed atop an array of references to earlier work in obscurer journals.
TAKE A STEP BACK PEOPLE!
Think of all this as _the_ primary User Interface on the body of human knowledge.
What a crap UI!
...if I ever go to Scandanavia, if I ever visit a bar there, never, ever, to go up to the roof.
Thanks J&J, we will remember that.
You have truly gained Brand Recognition by this action.
When he totally freaks out and starts screaming. Rename the file to GrowYourPenisNow.doc, spoof the From: header to be from hotmail.com, add a subject line V1agra and send.
Nobody will ever bother to read it.
Now you know why. this lower caps random characters are here merely to get around /.'s lame lameness filter that doesn't understand i used all the caps above to look like yelling because that is what anybody would be doing with a high priced bleeding edge touch screen and an umfriend with greasy kfc. what fools these admin mortals be.
It's the place I store all my jarjars.
(Ooo, thats going to cost me! Don't you just love the smell of karma burning in the morning...)
He'll be shitting himself and trying to look in all directions at once as he moves deeper in. :-)
Slashdot works.
..well, tough titty, no matter who declares them to be experts... we'll be off reading something else.
Therefore we read it.
When it ceases to work... we'll go off and read something else.
The creators of slashdot are experts.
If they stuff up and cause slashdot to cease working...
Get use to it.
Actually, in that case it was mostly fiction. :-)
The list _is_ the topic. What? Can't you guys cope with the reality of looking at the original data? Must you only have it fed sanitizing medium like The new York Times?