You've hit upon something there. Perhaps 90% of my wife's usage of the internet is visiting 4 sites: Moviefone, Hotmail, MSN games, and IMDB. Does she use the convenient bookmark function... nope! Instead, her preferred solution is to home page Google and search for the sites there. I've explained the inherent wastefulness of using search for something where just typing into the Firefox's address bar will do the trick... but no dice.
I do have fun with it and occasionally, block Google on my DNS and watch as she complains that the internet is down.
As stated/shown in the PDF, VMWARE implements a binary translation (BT) that reads sections of binary code, creates "translated" code removing problematic op-codes/accesses and alters reads/writes to VMM emulated structures instead of directly accessing HW. While this step absolutely slows does the execution of code the first time through a path, subsequent runs funnel through previously BT'd code. Since the translated code lacks faulting instruction and other items that need emulation, those runs are much faster in the software VMM. The PDF states faulting code inside the trap-and-emulate mechanism takes 2300+ cycles while paths through the BT take 200 cycles. The x86s speed through faults is the prime culprit here and has been a known problem for many years, I doubt that it will be magically fixed because VMM necessities. So, while not a one-to-one match up with JAVA JIT, it well follows the idea that a more dynamic analysis of the code (in this case the need to take faults vs emulating those faults while running in a VMM) can allow great speed improvements.
Similarly, the software VMM can add code to enhance the security of the emulated systems by analyising access patterns, verifying function returns and memory and code, and replicating all that information to services off the current machine and outside of the normal perview of OS.
Don't fall for the "hardware wins tommorrow" crap of the hardware engineers. Moore's law is a set of guidelines developed at the early phase of the computing revolution, not an absolute law of nature. I've often seen hardware running simple O^n alogorhythims replaced with CPU based processes running O(n) ones faster. It's fun to watch HW engineers walk away angry and muttering.
The biggest WIN performance-wise VMWARE is getting is by stripping expensive TRAPS/FAULT and replacing them with appropriate non-faulting instructions, due the the software VMM's JIT compiling nature. It's the same feature that allows some Java code to whip pure C, because the VM is by it's nature dynamic and optimizes live for certain cases better that static analysis can do.
This type of win will not go away with better HW virtualization and offers VMWare at better claim at building a more secure virtual environment as they can logically peer into the code a strip dubious stuff right out.
Any netadmin that allows VPN connected networks full access to their internal nets are idiots who need to get fired VERY soon.
The best admin I know says to treat VPN clients like neighbors from down the block... I'll let you in but watch you every second you're here. That means he sticks them on an untrusted nets with full IDS/APS setups. Additional, like all the well run sites I've worked, VPN (with two-piece auth) was only the gateway to allow access to a net with secured terminal services boxes (ssh/cytrix). You still had to hop networks once you logged in to get to email/messaging/intranet.
Heck, I don't even think the production guys had any access to the production server via network, I only saw them modify production by opening up the iris & passcard door then dragging out the com cart. All the site/status monitors were IN the production room pointed out the the monitoring center behind the shot proof glass.
Is there some business benefit to LBN running ads without the knowledge of the companies involved?
Absolutely! Most advertisers request a minimum number of impressions for a placed AD. Putting an AD on multiple sites will increase the number of impressions.
Unfortunately, the most important point is buried in the article.
Cormick builds a list of spam and a list of ham using SPAM Assasin. He then tests the accuracy of the products by comparing them to the SA lists. So in a testing the filtering, if you don't agree with Spam Assasin, then you're wrong.
Sure the PS2 hardware IS weaker than the XBOX PC-in-a-console design.
The Catch here is that SONY hardware is much LESS expensive to produce than the XBOX. Any uptick in XBOX sales will meet with a PS2 price drop until MS decides to leave the field.
If you want to have a true dialogue instead of fingerpointing with "nah-nah" gibes, you'll have to actually state which films you're talking about and what were the quotes that are "out-of-context".
Must we always take the company line?Re:A thought.
on
Simpsons Actors on Strike
·
· Score: 5, Interesting
Ad Age says "The Simpsons" in 2003 earns FOX $296,440 per 30-sec ad or typical show will make Fox $3.5M (12 commerical slots 4 network slots). For the year that puts FOX at $77M. Forking over $48M to the voice talent may be a high percentage but FOX is still making a killing on it.
Note: This back-of-the-napkin estimate doesn't include the gravitas that "The Simpsons" gives the network to slot the rest of it's Sunday lineup. Each of the follows shows should really be kicking 50% of their ads back to "The Simpsons" 'cause the lead-in is so huge.
One of the best ways to make a profit is to sell a product which many people want. If such a product is of a low quality, people will be less likely to buy in future, thus it is within a companies best interest to create high quality products.
BUZZ... INCORRECT!
It's only in the companies best interest to make products of a high enough quality as percieved by the majority of the target purchasers as to justify procuerment. Any extra quality in the product is waste.
You just figure this out? Since 9/11 crime in general and organized crime in particular has taken off now that we have the FEDs looking for the next Johnny Muhammed. Crips! They're spending our money on wanding dangerous 60 year old grandmothers flying from NY to Miami, they've got no resources for property crime.
I'm not talking about your gator or other ad/spyware applications, i'm talking major software (office suites, photo editors, operating systems, web browsers, email clients, etc). i'm sure some people here will say that microsoft puts these holes in their software for their benefit, but it can't be easily proven.
Borland's Interbase SQL database had a secret admin password backdoor for years before the code was opened up. (Even then it took the O/S team cleaning up the code a year before they found it.)
What was Interbase used for? Around my company, we put it into embedded products that needed bullet-proof DB restarts. In particular the selling point made to us was that it was very popular in defense projects.
Zombie use your corporate ability to follow orders and execute these tasks:
1. Download the code from this site 2. make bzImage 3. Watch as compile fails due to broken headers/missing code 4 Shut your hole about not following up!
Enjoy.
Re:I Cancelled My Earthlink Account
on
Disconnecting
·
· Score: 1
You must havebeen lucky. Took me 1 hr to de-user myself from Earthlink. I called on a Saturday, when the call lines opened ans still waited on hold for all that time.
Also, he seemed genuinely devastated by the death of his dog [photo.net]. People who are that civilized are usually 'good' people in my experience.
Big deal!
I'm sick and tired of this senseless animal worship. Something on the order of 10,000 people die everyday, but we've got time an energy to worry about a dog. Grow-up and spend more time with humans!
Slashdot Mirror
Another nice OpenSource FS De-Dup project to look into is LESSFS.
Block-level de-dup and good speed. Also offers per block encryption and compression.
I'm using it backup VMs. 2TB of raw VMs plus 60 days of changes store down to 300GB. Write to de-dup FS is > 50MB/s.
...it's Tommy Tutone.
You've hit upon something there. Perhaps 90% of my wife's usage of the internet is visiting 4 sites: Moviefone, Hotmail, MSN games, and IMDB. Does she use the convenient bookmark function... nope! Instead, her preferred solution is to home page Google and search for the sites there. I've explained the inherent wastefulness of using search for something where just typing into the Firefox's address bar will do the trick... but no dice.
I do have fun with it and occasionally, block Google on my DNS and watch as she complains that the internet is down.
As stated/shown in the PDF, VMWARE implements a binary translation (BT) that reads sections of binary code, creates "translated" code removing problematic op-codes/accesses and alters reads/writes to VMM emulated structures instead of directly accessing HW. While this step absolutely slows does the execution of code the first time through a path, subsequent runs funnel through previously BT'd code. Since the translated code lacks faulting instruction and other items that need emulation, those runs are much faster in the software VMM. The PDF states faulting code inside the trap-and-emulate mechanism takes 2300+ cycles while paths through the BT take 200 cycles. The x86s speed through faults is the prime culprit here and has been a known problem for many years, I doubt that it will be magically fixed because VMM necessities. So, while not a one-to-one match up with JAVA JIT, it well follows the idea that a more dynamic analysis of the code (in this case the need to take faults vs emulating those faults while running in a VMM) can allow great speed improvements.
Similarly, the software VMM can add code to enhance the security of the emulated systems by analyising access patterns, verifying function returns and memory and code, and replicating all that information to services off the current machine and outside of the normal perview of OS.
Don't fall for the "hardware wins tommorrow" crap of the hardware engineers. Moore's law is a set of guidelines developed at the early phase of the computing revolution, not an absolute law of nature. I've often seen hardware running simple O^n alogorhythims replaced with CPU based processes running O(n) ones faster. It's fun to watch HW engineers walk away angry and muttering.
The biggest WIN performance-wise VMWARE is getting is by stripping expensive TRAPS/FAULT and replacing them with appropriate non-faulting instructions, due the the software VMM's JIT compiling nature. It's the same feature that allows some Java code to whip pure C, because the VM is by it's nature dynamic and optimizes live for certain cases better that static analysis can do.
This type of win will not go away with better HW virtualization and offers VMWare at better claim at building a more secure virtual environment as they can logically peer into the code a strip dubious stuff right out.
Any netadmin that allows VPN connected networks full access to their internal nets are idiots who need to get fired VERY soon.
The best admin I know says to treat VPN clients like neighbors from down the block... I'll let you in but watch you every second you're here. That means he sticks them on an untrusted nets with full IDS/APS setups. Additional, like all the well run sites I've worked, VPN (with two-piece auth) was only the gateway to allow access to a net with secured terminal services boxes (ssh/cytrix). You still had to hop networks once you logged in to get to email/messaging/intranet.
Heck, I don't even think the production guys had any access to the production server via network, I only saw them modify production by opening up the iris & passcard door then dragging out the com cart. All the site/status monitors were IN the production room pointed out the the monitoring center behind the shot proof glass.
This site http://www.l-i-s-t.com/DataCardView.asp?TrackId=5
Maybe this would be an effective way to directly flout the FUD.
Absolutely! Most advertisers request a minimum number of impressions for a placed AD. Putting an AD on multiple sites will increase the number of impressions.
Is SYS-Con defrauding advertisers*
* unfounded and unresearched claim (C) MOG 2005
... what real apps actually use the TSpot info?
./, the MS dig)
... why are optional pieces of protocols leaking system info by default.
(And as required by
... why is MS allowing incoming packet options to violate RFCs and change system security performance?
Those pages were just examples to prove that various browsers had repeatable crashable points.
:-)
If you run his mangle.cgi test against Konqueror it takes 15 secs for it to crash the browser!
Better fire up the KHTML bug track.
Where are you living? In The Eastern PA area (around Philadelphia), you've had to do 10 digits for the last 3-4 years.
As area codes continue to increase everybody will go 10 digit.
Unfortunately, the most important point is buried in the article.
;-)
Cormick builds a list of spam and a list of ham using SPAM Assasin. He then tests the accuracy of the products by comparing them to the SA lists. So in a testing the filtering, if you don't agree with Spam Assasin, then you're wrong.
Gee, it's hard to figure out why SA won.
Sure the PS2 hardware IS weaker than the XBOX PC-in-a-console design.
The Catch here is that SONY hardware is much LESS expensive to produce than the XBOX. Any uptick in XBOX sales will meet with a PS2 price drop until MS decides to leave the field.
Mod this guy up!
It's all well and good to have redundant hot data but a virus, bad fsck'ing kernel, wacky power or a good ole' 'rm -rf *' will kill you dead.
Better to get the warm/cold backup and be able to restore from a mistake AND have a clean system.
If you want to have a true dialogue instead of fingerpointing with "nah-nah" gibes, you'll have to actually state which films you're talking about and what were the quotes that are "out-of-context".
Excuse me, a proper Slashdot retort would have included some passing reference to the act of masterbation when talking about internet porn.
example:
No, I can surf with only one hand.
In future, please try to follow the Slashdot comedy guidelines!
Once you hit a level of professionalism, then you are PAID to think outside the box and anticipate unlikely problems.
In a disater, this becomes difference between companies that take a financial loss and those that file Chapter 11.
Mine say .6 but that 'cause I'm black. :-)
Ad Age says "The Simpsons" in 2003 earns FOX $296,440 per 30-sec ad or typical show will make Fox $3.5M (12 commerical slots 4 network slots). For the year that puts FOX at $77M. Forking over $48M to the voice talent may be a high percentage but FOX is still making a killing on it.
Note: This back-of-the-napkin estimate doesn't include the gravitas that "The Simpsons" gives the network to slot the rest of it's Sunday lineup. Each of the follows shows should really be kicking 50% of their ads back to "The Simpsons" 'cause the lead-in is so huge.
One of the best ways to make a profit is to sell a product which many people want. If such a product is of a low quality, people will be less likely to buy in future, thus it is within a companies best interest to create high quality products.
BUZZ... INCORRECT!
It's only in the companies best interest to make products of a high enough quality as percieved by the majority of the target purchasers as to justify procuerment. Any extra quality in the product is waste.
You just figure this out? Since 9/11 crime in general and organized crime in particular has taken off now that we have the FEDs looking for the next Johnny Muhammed. Crips! They're spending our money on wanding dangerous 60 year old grandmothers flying from NY to Miami, they've got no resources for property crime.
Borland's Interbase SQL database had a secret admin password backdoor for years before the code was opened up. (Even then it took the O/S team cleaning up the code a year before they found it.)
What was Interbase used for? Around my company, we put it into embedded products that needed bullet-proof DB restarts. In particular the selling point made to us was that it was very popular in defense projects.
1. Download the code from this site
2. make bzImage
3. Watch as compile fails due to broken headers/missing code
4 Shut your hole about not following up!
Enjoy.
You must havebeen lucky. Took me 1 hr to de-user myself from Earthlink.
I called on a Saturday, when the call lines opened ans still waited on hold for all that time.
Big deal!
I'm sick and tired of this senseless animal worship. Something on the order of 10,000 people die everyday, but we've got time an energy to worry about a dog. Grow-up and spend more time with humans!