Last year, my daughter and I did a web page that generates mazes because she loves mazes and was amazed that I told her that the computer can be made to make one.
Trying it on IE8, I thought the page was broken. It took almost all day to complete what FF and Safari and Chrome did in seconds.
I then added some instrumentation and other HTML/DOM layouts to test the browsers. You can see this at http://sinz.org/Maze/
By the way, IE9 RC is much better but still an order of magnitude behind Chrome.
This is a nice Tegra2 tablet with rather good community support. The main downside is that the screen is TN and not IPS. But it seems well made and is looks like it will have no problem going to 3.0. Android.
And for under $400 it is relatively well priced for a 10.1 inchtablet
I ended up converting a web page that I built with my daughter (back in March for her Birthday) as a benchmark when I happened to have tried it on IE and it was basically unusable. I accidentally created a benchmark when I did not want to.
Then, with lots of playing around, I got IE8 to run the page significantly faster than the original IE8 but still a few orders of magnitude less than other browsers.
You can try it our at http://sinz.org/Maze/ - it is a simple page that generates a maze that fills the browser window. Do this in a "maximized" browser window for most dramatic impact. Part of the problem is the performance of the layout engine in IE8 since it seems to do another layout when changing the background color. Chrome is actually rather good at this but Safari and Firefox are also relatively good.
The Hummer had the tire inflation and deflation system put on mainly so that it can get into the air transport planes. The few inches saved in height was just what was needed. Plus, it turned out to be useful to have the "softer" tire in sandy conditions.
The charging/usb connection door is somewhat annoying but I have not touched it after the initial setup.
I have the Touchstone charger (highly recommended) and just place the Pre on that and it charges. All other operations, including sync and update I do over the network (wifi at home, cell otherwise)
I just wish that it mechanically was a bit more strong (I have a Pre, not the Pre Plus. Some claim that the Pre Plus has better mechanical build quality)
PS - Not that the quality is bad, it just could be a bit better...
What's the cutoff, anyway? You end up with applications (or at least parts thereof) on the boot drive in practice
because pretty much every operating system demands it... well, except Unix:)
So, you are saying "pretty much every operating system demands it... well, except for all those that are not Windows"
(Ref MacOSX is Unix, Linux is like Unix, Solaris, FreeBSD, AIX, QNX, SCO, etc.)
And then there are the Mainframe OSes (not Unix like) that also support volumes and isolation of OS from Applications from Data.
This is known as the Tytler Cycle.
This quote is rather insightful with respect to the fact that people "as a whole" tend to have a lack of "enlightened self interests" and just "self interests" - basically, it assumes poor judgement by people "as a whole" which, it seems, is exactly what I see happening. The "enlightened" aspect that would be needed to prevent this cycle is not easily present in large groups.
However, it is not likely that the quote is by Mr. Tytler - or at least no evidence of that can be found.
The one thing I always do is turn off password login via SSH. Only authorized keys are allowed and they are strictly controlled.
I also have black-listed some parts of the IP address space where a vast majority of the attacks were coming from but lately this has proven not to do as much as it used to do.
Not only emergency services but health care - would you actually negotiate the care given to your child to drive down costs? Do you really think you are going to hunt for lowest cost provider for your child's health (or even life)?
I would claim that this is exactly why we need to have universal health coverage - since when you need it you can not actually make those choices nor should you have to.
I have had my own server (EMail and other) for a long time (almost 2 decades) and I have to say that with SPAM these days, nothing beats the GMail spam filters. I tell my family that I can forward email to their GMail accounts for spam filtering. They get to use GMail for the client (and imap/pop support from GMail) and get all of the spam filtering support while still controlling our email domain. This works far better than what I could ever support on my own server. (The large community of GMail customers and engineering to support them just beats my humble efforts...)
A good dual core machine with at least 4gig of RAM works great. Since you said "developer" I, gaming is not an issue. I have a Dell dual core 2.4ghz machine that I run Linux on and then use Virtualbox to run legacy operating systems such as WinXP, Win95, and OS2 for testing/development.
I was amazed at how well VirtualBox was able to support the legacy OS operations. In fact, I also use it to run an older Linux build for building and testing some code for an older server.
Insurance companies do this all the time - refuse care/coverage due to expense, experimental status, outcome potential. That last hope treatment is many times rejected as it rarely works - not because it is a bad idea (you are about to die if you don't try it but you have a 5% chance if you do) but because it costs money and the CEO wants to upgrade the kitchen in his yacht.
That is just too logical for a US congress to go along with. I mean, really, how would ADM survive? And how would candidates get their big donations from ADM and related down stream industries?
Win7 has significant internal changes. Scheduler, threading system, memory allocator, etc.
Built on this there are many improvements in other services that have improved performance. Don't get me wrong, Win7 is bigger than WinXP but it performs rather well if you have 512Meg to 1Gig of RAM. (It really shines if you have a 64-bit multi-cpu, multi-core machine with multiple gigs of RAM - the new kernel in Win7 scales up to many more cores/cpus than WinXP or Vista did.)
Now, this does not mean that Linux is bad - in fact, for many services Linux still out performs (file system I/O is one of the major ones) but the advances with Win7 are real and a major reversal from WinVista (not that it should be hard to beat Vista) and, in many cases it significantly beats WinXP or any prior Windows NT release. (Albeit you must have the compute resources to match... which today is almost any x86 computer over $200)
What happens when you download Linux or FreeBSD? If you look at the article and related links, the Q&A states:
What is the value of the digital product for use tax purposes?
The value is the purchase price of the digital product. If the digital product is acquired by means other than a purchase, the value of the digital product is determined by the retail selling price of a similar digital product.
To me, that means one could download an Operating System (legally) and owe taxes on the value of similar Operating Systems.
See section 304 subsection 5 of the actual bill for this text:
(5) "Value of the digital good or digital code used" means the
purchase price for the digital good or digital code, the use of which
is taxable under this chapter. If the digital good or digital code is
acquired other than by purchase, the value of the digital good or
digital code must be determined as nearly as possible according to the
retail selling price at place of use of similar digital goods or
digital codes of like quality and character under rules the department
may prescribe;
...which to me is very open ended. But not that the official document even has that section underlined.
I too use VueScan and it works much better than any of the specific scanner software. And, not only do I use this on the Mac, I also use VueScan on Linux (as he makes/sells a Linux version too!)
I highly recommend VueScan - he really knows how these scanners work and how to get the best images out of them.
Most all of this is already what I have with the Treo (mine is the old 650) and pssh. The 80x24 is a bit tough on the eyes due to the 320x320 screen resolution but it does manage to push the limits and get that to work. I would rather see a 640x480 or 640x640 resolution to make it work.
PS - the N810 is a nice answer to all but the phone bit. However, with bluetooth networking, the small phone stays in the pocket while using the N810 (or N800). It does suck battery power on your phone but sometimes things don't come for free.
For those of us old enough to remember the early days of the personal computer market and, more specifically, the IBM PC market, we will remember that the same types of doom and gloom was said about the software industry. Lotus would die if it released 123 without DRM (ok, it was called copy protection back then) or that dBase or a host of other software vendors.
But there were some that realized that two things were going on:
1) Copy protection got in the way of legitimate paying customers so more and more complex methods were invented that did things like put bad data into directory structures on the hard drive to "mark" the machine as valid and other such trick, all of which ended up causing more problems and costing tons in R&D and support efforts.
2) Those people who would not pay for the software still were finding people who had the skills to work around the security measures and still had illegal copies. In fact, some that actually had paid for the software also got these illegal versions as they did not have this other problems.
Along the same time, some smaller vendors released software at the right price and without copy protection "features" and did very well. Slowly the other vendors also stopped doing copy protection and, well, the sky did not fall. They all prospered. Those that failed did not fail due to lack of copy protection or due to too much piracy.
I have seen this cycle actually a number of times. Each time the final analysis ends up showing that more is lost due to trying to "protect" the content than is ever gained by someone maybe paying for the product that might not have done so without the measures.
I am very confused as to your Square and Rectangle example... Why in the world would Square not be a subclass of Rectangle?
The only thing about square that is unique to it over rectangle is the constraint that width == height. That type of constraint is exactly what subclassing is good at controlling.
All of the other attributes and methods are the same: calculate area, draw outline, draw filled item, rotate in 2D, draw in 2.5D perspective, map to a 3D surface, scale, etc.
So why in the world would Square not be a subclass of Rectangle? (Or just an attribute of a Rectangle?)
In fact, the Square would *be* a Rectangle - thus it would be polymorphic with Rectangle as both expected and as per behaviors. Not having it be a subclass is almost specifically wrong, both in code reuse and in behavior.
We have had a number of 16-CPU Itanium SGI NUMA machines. These machines, for very specialized software (specifically floating point calculation intensive code that optimizes well to the VLIW of the Itanium) really does go very, very fast.
However, for more "generic" code, even with the best the compilers can do, the Itanium was very, very unimpressive.
Now, the hardware that SGI built was very impressive - very good memory architecture, extreme I/O performance, and overall just plain well built. However, at $250K, it was just not worth it. For under $70K I ended up building a x86_64 based system (still Intel, but...) that beat it in almost every respect other than I/O (well, and max memory bandwidth, but that is another story).
And, for our applications, the x86_64 based solution was around 3 times faster overall (with some of the core calculation routines being almost 5 times faster).
In both cases we were running the same OS (Linux) and platform specific compiled code.
Re:Another one? (yum upgrade...)
on
Fedora 8 Released
·
· Score: 2, Informative
You may want to make sure you read some of the gotchas as if you have packages that are not from the Fedora Project and they are not upgraded or compatible with the newer version you are upgrading to you may need to delete them.
Note also that there are some difficulties in the x84_64 CPU architecture as more things become native 64-bit and thus some conflicts with older releases may happen...
Slashdot Mirror
Last year, my daughter and I did a web page that generates mazes because she loves mazes and was amazed that I told her that the computer can be made to make one.
Trying it on IE8, I thought the page was broken. It took almost all day to complete what FF and Safari and Chrome did in seconds.
I then added some instrumentation and other HTML/DOM layouts to test the browsers. You can see this at http://sinz.org/Maze/
By the way, IE9 RC is much better but still an order of magnitude behind Chrome.
On February 8th, there was a great Fresh Air with Terry Gross interview about this article in The New Yorker.
Terry Gross has this way to get really interesting information from her guests and to do it in a very engaging way. And this episode is no exception.
This is a nice Tegra2 tablet with rather good community support. The main downside is that the screen is TN and not IPS. But it seems well made and is looks like it will have no problem going to 3.0. Android. And for under $400 it is relatively well priced for a 10.1 inchtablet
I ended up converting a web page that I built with my daughter (back in March for her Birthday) as a benchmark when I happened to have tried it on IE and it was basically unusable. I accidentally created a benchmark when I did not want to.
Then, with lots of playing around, I got IE8 to run the page significantly faster than the original IE8 but still a few orders of magnitude less than other browsers.
You can try it our at http://sinz.org/Maze/ - it is a simple page that generates a maze that fills the browser window. Do this in a "maximized" browser window for most dramatic impact. Part of the problem is the performance of the layout engine in IE8 since it seems to do another layout when changing the background color. Chrome is actually rather good at this but Safari and Firefox are also relatively good.
The Hummer had the tire inflation and deflation system put on mainly so that it can get into the air transport planes. The few inches saved in height was just what was needed. Plus, it turned out to be useful to have the "softer" tire in sandy conditions.
The charging/usb connection door is somewhat annoying but I have not touched it after the initial setup.
I have the Touchstone charger (highly recommended) and just place the Pre on that and it charges. All other operations, including sync and update I do over the network (wifi at home, cell otherwise)
I just wish that it mechanically was a bit more strong (I have a Pre, not the Pre Plus. Some claim that the Pre Plus has better mechanical build quality)
PS - Not that the quality is bad, it just could be a bit better...
What's the cutoff, anyway? You end up with applications (or at least parts thereof) on the boot drive in practice because pretty much every operating system demands it... well, except Unix :)
So, you are saying "pretty much every operating system demands it... well, except for all those that are not Windows" (Ref MacOSX is Unix, Linux is like Unix, Solaris, FreeBSD, AIX, QNX, SCO, etc.) And then there are the Mainframe OSes (not Unix like) that also support volumes and isolation of OS from Applications from Data.
This is known as the Tytler Cycle. This quote is rather insightful with respect to the fact that people "as a whole" tend to have a lack of "enlightened self interests" and just "self interests" - basically, it assumes poor judgement by people "as a whole" which, it seems, is exactly what I see happening. The "enlightened" aspect that would be needed to prevent this cycle is not easily present in large groups. However, it is not likely that the quote is by Mr. Tytler - or at least no evidence of that can be found.
The one thing I always do is turn off password login via SSH. Only authorized keys are allowed and they are strictly controlled.
I also have black-listed some parts of the IP address space where a vast majority of the attacks were coming from but lately this has proven not to do as much as it used to do.
Not only emergency services but health care - would you actually negotiate the care given to your child to drive down costs? Do you really think you are going to hunt for lowest cost provider for your child's health (or even life)?
I would claim that this is exactly why we need to have universal health coverage - since when you need it you can not actually make those choices nor should you have to.
I have had my own server (EMail and other) for a long time (almost 2 decades) and I have to say that with SPAM these days, nothing beats the GMail spam filters. I tell my family that I can forward email to their GMail accounts for spam filtering. They get to use GMail for the client (and imap/pop support from GMail) and get all of the spam filtering support while still controlling our email domain. This works far better than what I could ever support on my own server. (The large community of GMail customers and engineering to support them just beats my humble efforts...)
A good dual core machine with at least 4gig of RAM works great. Since you said "developer" I, gaming is not an issue. I have a Dell dual core 2.4ghz machine that I run Linux on and then use Virtualbox to run legacy operating systems such as WinXP, Win95, and OS2 for testing/development.
I was amazed at how well VirtualBox was able to support the legacy OS operations. In fact, I also use it to run an older Linux build for building and testing some code for an older server.
Insurance companies do this all the time - refuse care/coverage due to expense, experimental status, outcome potential. That last hope treatment is many times rejected as it rarely works - not because it is a bad idea (you are about to die if you don't try it but you have a 5% chance if you do) but because it costs money and the CEO wants to upgrade the kitchen in his yacht.
That is just too logical for a US congress to go along with. I mean, really, how would ADM survive? And how would candidates get their big donations from ADM and related down stream industries?
I really wish I had mod points today ... A great post!
Built on this there are many improvements in other services that have improved performance. Don't get me wrong, Win7 is bigger than WinXP but it performs rather well if you have 512Meg to 1Gig of RAM. (It really shines if you have a 64-bit multi-cpu, multi-core machine with multiple gigs of RAM - the new kernel in Win7 scales up to many more cores/cpus than WinXP or Vista did.)
Now, this does not mean that Linux is bad - in fact, for many services Linux still out performs (file system I/O is one of the major ones) but the advances with Win7 are real and a major reversal from WinVista (not that it should be hard to beat Vista) and, in many cases it significantly beats WinXP or any prior Windows NT release. (Albeit you must have the compute resources to match... which today is almost any x86 computer over $200)
Ahh, but Au-194 has a half-life of 38 hours, again doing electron capture into Pt-194 (albeit that may actually be a good thing anyway)
What happens when you download Linux or FreeBSD? If you look at the article and related links, the Q&A states:
What is the value of the digital product for use tax purposes?
The value is the purchase price of the digital product. If the digital product is acquired by means other than a purchase, the value of the digital product is determined by the retail selling price of a similar digital product.
To me, that means one could download an Operating System (legally) and owe taxes on the value of similar Operating Systems.
See section 304 subsection 5 of the actual bill for this text:
(5) "Value of the digital good or digital code used" means the purchase price for the digital good or digital code, the use of which is taxable under this chapter. If the digital good or digital code is acquired other than by purchase, the value of the digital good or digital code must be determined as nearly as possible according to the retail selling price at place of use of similar digital goods or digital codes of like quality and character under rules the department may prescribe;
...which to me is very open ended. But not that the official document even has that section underlined.
I highly recommend VueScan - he really knows how these scanners work and how to get the best images out of them.
I sure hope they don't put that silly SyFy on the BSG season 4.5 DVDs! I would hate to have the set ruined by that amazingly stupid idea of a name.
(Now, I just hope they come out soon as I have no Cable or other TV watching mechanisms in our new location...)
Most all of this is already what I have with the Treo (mine is the old 650) and pssh. The 80x24 is a bit tough on the eyes due to the 320x320 screen resolution but it does manage to push the limits and get that to work. I would rather see a 640x480 or 640x640 resolution to make it work.
PS - the N810 is a nice answer to all but the phone bit. However, with bluetooth networking, the small phone stays in the pocket while using the N810 (or N800). It does suck battery power on your phone but sometimes things don't come for free.
For those of us old enough to remember the early days of the personal computer market and, more specifically, the IBM PC market, we will remember that the same types of doom and gloom was said about the software industry. Lotus would die if it released 123 without DRM (ok, it was called copy protection back then) or that dBase or a host of other software vendors.
But there were some that realized that two things were going on:
1) Copy protection got in the way of legitimate paying customers so more and more complex methods were invented that did things like put bad data into directory structures on the hard drive to "mark" the machine as valid and other such trick, all of which ended up causing more problems and costing tons in R&D and support efforts.
2) Those people who would not pay for the software still were finding people who had the skills to work around the security measures and still had illegal copies. In fact, some that actually had paid for the software also got these illegal versions as they did not have this other problems.
Along the same time, some smaller vendors released software at the right price and without copy protection "features" and did very well. Slowly the other vendors also stopped doing copy protection and, well, the sky did not fall. They all prospered. Those that failed did not fail due to lack of copy protection or due to too much piracy.
I have seen this cycle actually a number of times. Each time the final analysis ends up showing that more is lost due to trying to "protect" the content than is ever gained by someone maybe paying for the product that might not have done so without the measures.
I am very confused as to your Square and Rectangle example... Why in the world would Square not be a subclass of Rectangle?
The only thing about square that is unique to it over rectangle is the constraint that width == height. That type of constraint is exactly what subclassing is good at controlling.
All of the other attributes and methods are the same: calculate area, draw outline, draw filled item, rotate in 2D, draw in 2.5D perspective, map to a 3D surface, scale, etc.
So why in the world would Square not be a subclass of Rectangle? (Or just an attribute of a Rectangle?)
In fact, the Square would *be* a Rectangle - thus it would be polymorphic with Rectangle as both expected and as per behaviors. Not having it be a subclass is almost specifically wrong, both in code reuse and in behavior.
I must say that I have not seen the circles...
We have had a number of 16-CPU Itanium SGI NUMA machines. These machines, for very specialized software (specifically floating point calculation intensive code that optimizes well to the VLIW of the Itanium) really does go very, very fast.
However, for more "generic" code, even with the best the compilers can do, the Itanium was very, very unimpressive.
Now, the hardware that SGI built was very impressive - very good memory architecture, extreme I/O performance, and overall just plain well built. However, at $250K, it was just not worth it. For under $70K I ended up building a x86_64 based system (still Intel, but...) that beat it in almost every respect other than I/O (well, and max memory bandwidth, but that is another story).
And, for our applications, the x86_64 based solution was around 3 times faster overall (with some of the core calculation routines being almost 5 times faster).
In both cases we were running the same OS (Linux) and platform specific compiled code.
I have use the yum upgrade method for quite some time. You may wish to check out the Fedora yum upgrade faq at http://fedoraproject.org/wiki/YumUpgradeFaq - there is also a non-official guide to using yum to upgrade a number of RedHat distributions at http://www.brandonhutchinson.com/Upgrading_Red_Hat_Linux_with_yum.html
You may want to make sure you read some of the gotchas as if you have packages that are not from the Fedora Project and they are not upgraded or compatible with the newer version you are upgrading to you may need to delete them.
Note also that there are some difficulties in the x84_64 CPU architecture as more things become native 64-bit and thus some conflicts with older releases may happen...