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  • What would you suggest as a high school first language?

    - by ldigas
    Edit by OA: After reading some answers I'll just update the question a little. At first I put it a little bluntly, but some of those gave me some good arguments which have to be taken into consideration while making a stand on this one. (these are mostly picked up from comments and answers below). A few things to take into account: to many pupils this is a first programming language - at this stage most of them have trouble grasping a difference between data types, variable passing, ... and whatnot, less alone pointers and similar 'low level stuff' :) they will all have to pass this to get into next grade (well, big majority of them anyway) not all of them have computers at home, not all of them are willing to learn this, less alone interested in - so the concepts have to be taught on a finite time scale in school hours (as well as practice on computers) free literature is a bonus - the teacher will make some scripts and handaways, but still ... I wouldn't like to bear the parents with the burden of buying expensive literature (also, english is not a native language here ... and although they are all learning it, their ability to read it fluently is somewhat questionable) somebody gave an argument - "a language which does not get in the way of ideas" - good one accessibility on different platforms in not expecially important at this point - although most of the suggested ones are available on win as well as linux - not many macs in this part of europe (their prices are sky high for anything but specialised usage) I will check what are the licencing issues on ms express editions about using it massively in high schools for purposes like this - if someone has any info about this, please, do not be shy with it :) A friend of mine, informatics teacher - in EU it comes as something as junior cs teacher, in a local high school asked me what I thought about what should be the first language pupils should be taught? It is a technical school (a little more oriented towards mathematics than the gymnasium, but not computer oriented totally). So I'm asking you - what do you think should be the first language pupils are exposed to in highschool? They have been teaching Pascal so far, but she's not sure that's a good course. She thought about switching to C (which I resented; considering not all pupils have interests in programming, to start with, and should be taught something higher level since they are just gripping the idea of a loop and such ... for a start), I suggested python or ruby (preferably py since it handles all paradigms). What is your opinion on this one? I looked, but didn't find a similar question on SO, so if there is one, please just point me towards it. Edit: The assumption is that none of the pupils have been exposed to any programming in junior school. See also: What is the best way to teach young kids some basic programming concepts? Best ways to teach a beginner to program How and when do you teach a kid to code What is the easiest language to start with? High School Programming

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  • How do I lower the hardware volume? (volume too high)

    - by Zom-B
    I have a 4yo Dell laptop with Windows XP Pro (modern ones unfortunately don't have a physical volume knob), and lately I'm using my Apple earphones, because they have much better low frequency response than my $10 earphones. They also have the side effect of being much louder. To give an indication of my agony, for most tasks (movie, music, games) I have my main volume at 3 ticks: drag to 0 with the mouse and press the up key 3 times (the handle does not even raise 1 pixel) and my wave volume at 50%. I notice that when I do this, I have a lot of digital noise, because I'm using just a tiny fraction of the 16-bit space. If I drag the Wave slider down until I barely hear the audio, it becomes really distorted and noisy, indicating that this is digital volume (in the DirectSound driver or something) and not hardware volume. I experimented in Audition. When I make a tone of 1000Hz at -50db, (all windows volumes at max) the volume is just below my pain threshold. When I zoom in to see how high the sample values reach, I see that just 8 of the 16 bits are used (about -100 ~ 100). When I generate such tone at -80db (minimum I can specify) then I can still clearly hear the tone, although really noisy. When I zoom in, I see that just 3 out of 16 bits are used. I created a squarewave tone that is just 1 bit high, and I can still hear it! For most uses, this is not a big problem (audiophiles will disagree!), as I just have more noise than usual (about the same as old 8 bit hardware), but I'm also in the process of programming a hearing test program, in which case this problem is a death blow as the test subjects will even hear tones at the bottom of the theoretical range (lowering the windows volume is futile, see above) (I cannot update drivers, as Dell has discontinued XP support for my model)

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  • Anyone have real world experience with Rackspace Cloud Sites at high scale?

    - by Allara
    I have a pure web service application layer using .NET. I was originally planning to use Amazon EC2, but rolling my own autoscaling procedures is a bit intimidating, and the scaling isn't very granular from a cost perspective. If the app is successful, we could be looking at relatively high scale (millions of requests per month). The app uses Amazon SimpleDB as the database layer. As a test, I have the app running successfully in Rackspace Cloud Sites. Performance seems to be equal to (if not better than) a standard EC2 instance, even with the added latency of the SimpleDB requests travelling to the Rackspace network. However, testing at this stage is at a very low scale. My question is this: has anyone had real-world experience running a high scale application on Rackspace Cloud Sites? Moreover, once you pass the "included" 10,000 compute cycles per month, does the overall cost seem to be lower than rolling lots of EC2 instances? My assumption would be that with completely smooth scaling (i.e. only adding compute resources as needed), the cost could be lower on average. However, their stated goal of calibrating 10,000 CCs as a single 1.2 Ghz CPU seems on average to be much more expensive than EC2. I like the idea of no-touch scaling, but is it too good to be true?

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  • High CPU usage compared to WinXP. Common aps and actions use 100% CPU cycles

    - by Jopower
    I'm running Lubunto 14.04.1 LTS. PC is a 2004 HP ze4200 laptop: 1.8 ghz Celeron M with 1 gb RAM and 80 gb drive. Was running fine on WinXP SP3 and I cleaned the drive off to test Lubuntu 14 LTS. No anti-virus is installed yet. I enabled the CPU resource monitor to see how various programs drag the OS. Using Firefox 31 online right now, I see doing basic functions like openning a new tab and scrolling down a page are using 100% CPU time, ocassionally for 10-30 seconds. In fact some pretty basic aps like Leafnote hit 100% for a second. Wordpad never did that. Lubuntu Software Center locks things up at 100% for 10 seconds. Just typing here shows a 60-80% spike every character. Running the mouse around the screen for 10 seconds results in a sustained 100% load during that time. Right now, if I let the PC rest just idling Firefox and not doing anything with it, CPU use bounces from 20-40% all by itself. WinXP idles at 2-10% and it's considered not good for it to be above 20%... something odd must be happening. Sure, XP will give similar higher CPU cycles with program use, but it's not locking and slogging like this. Lubuntu is supposed to be a light OS and by memory usage it is and I'm happy since this is an old PC maxed for memory upgrades. However, being used to doing some tuning and wary of abnormalities going on in the background, the CPU use indicates things going on that I want to know about and perhaps apply a tweek or two. Recommendations are appreciated. And this 300 point "new tags" restriction bites!

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  • Why should we use low level languages if a high level one like python can do almost everything? [closed]

    - by killown
    I know python is not suitable for things like microcontrolers, make drivers etc, but besides that, you can do everything using python, companys get stuck with speed optimizations for real hard time system but does forget other factors which one you can just upgrade your hardware for speed proposes in order to get your python program fit in it, if you think how much cust can the company have to maintain a system written in C, the comparison is like that: for example: 10 programmers to mantain a system written in c and just one programmer to mantain a system written in python, with python you can buy some better hardware to fit your python program, I think that low level languages tend to get more cost, since programmers aren't so cheaply than a hardware upgrade, then, this is my point, why should a system be written in c instead of python?

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  • how to write high quality GUI software with qt?

    - by Opetmar
    I want to write a project using QT library, so after learning the library and mastering it how should I start, what other libraries or things that I should learn? are there any other tools that will help me during the development or tools well help the end user to install the software and using it? What are the things that I should be aware? what are the things that I should avoid so it can run efficiently?

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  • Can throwing the iPhone high in the air launch my app or trigger desired function in iOS 7 or later

    - by aMother
    My app is an emergency app. It will be used by people in emergency and disasters. It's possible that they got stuck in situations where they just don't have the time to enter or draw their password, launch the appp and push a button. Is it possible that ask the OS to launch the app if user throw their iphone up in the air or shake it vigrously or something else. PS: I think it's possible with the accelerometer.

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  • Teaching "web design/development" to high-school home-school group. Good sources?

    - by anonymous coward
    I may soon begin teaching a "web design and development" class for a home-school co-op group. Any suggestions for "course" material? My first thought was to work through the Opera Web Standards Curriculum, but am interested in hearing about possible alternatives or suggestions that better cover the "very basics" of getting started with designing and developing web pages. Not necessarily looking for topics, so much as existing resources. Thanks so much for your input!

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  • Who is likely to need the most this high-quality, measurable, reliable approach to software? [closed]

    - by Marek Cruz
    Software engineering is the application of principles of engineering to software. Trouble is, most of those who like to flatter with the title "software engineer" don't do that. They just keep writing code and patching it until it's stable enough to foist off on users. That's not software engineering. Who is likely to need the most the practice of software engineering? (with all the project planning, requirements engineering, software design, implementation based on the design, testing, deployment, awareness of IEEE standards, metrics, security, dependability, usability, etc.)

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  • SQL Authority News – Secret Tool Box of Successful Bloggers: 52 Tips to Build a High Traffic Top Ranking Blog

    - by Pinal Dave
    When I started this blog, it was meant as a bookmark for myself for helpful tips and tricks.  Gradually, it grew into a blog that others were reading and commenting on.  While SQL and databases are my first love and the reason I started this blog, the side effect was that I discovered I loved writing.  I discovered a secret goal I didn’t even know I wanted – I wanted to become an author.  For a long time, writing this blog satisfied that urge.  Gradually, though, I wanted to see my name in print. 12th Book Over the past few years I have authored and co-authored a number of books – they are all based on my knowledge of SQL Server, and were meant to spread my years of experience into the world, to share what I have learned with my community.  I currently have elevan of these “manuals” available for sale.  As exciting as it was to see my name in print, I still felt that there was more I could do as an author. That is when I realized that I am more than just a SQL expert.  I have been writing this blog now for more than 10 years, and it grew from a personal bookmark to a thriving website with over 2 million views per month.  I thought to myself “I could write a book about how to create a successful blog!”  And that is exactly what I did.  I am extremely excited to share with all of you my new book – “Secret Toolbox of Successful Bloggers.” A Labor of Love This project has been a labor of love for me.  It started out as a series for this blog – I would post one article a week until I felt the topic had been covered.  I found that as I wrote, new topics kept popping up in my mind, and eventually this small blog series grew into a full book.  The blog series was large enough to last a whole year, so I definitely thought that it could be a full book.  Ideas on how to become a successful blogger were so frequent that, I will admit, I feel like there is so much I left out of this book.  I had a lot more to say than I originally thought! I am so excited to be sharing this book with all of you.  I am so passionate about this topic, and I feel like there are so many people who can benefit from this book.  I know that when I started this blog, I did not know what I was doing, and I would have loved a “helping hand” to tell what to do and what not to do.  If this book can act that way to any of my readers, I feel it is a success. Rules of Thumb If you are interested in the topic of becoming a blogger, as you read this book, keep in mind that it is suggestions only.  Blogging is so new to the world that while there are “rules of thumb” about what to do and what not to do, a map of steps (“first, do x, then do y”) is not going to work for every single blogger.  This book is meant to encourage new bloggers to put their content out there in the world, to be brave and create a community like the one I have here at SQL Authority.  I have gained so much from this community, I wanted to give something back, and this book is just one small part. I hope that everyone who reads this books finds at least one helpful tip, and that everyone can experience the joy of blogging.  That is the whole reason I wrote this book, and what I hope everyone takes away from it. Where Can You Get It? You can get the book from following URL: Kindle eBook | Print Book Reference: Pinal Dave (http://blog.SQLAuthority.com)Filed under: About Me, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority Author Visit, T SQL

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  • What should I do to scale out an high-traffic website?

    - by makerofthings7
    What Best Practices should be undertaken for a Website that needs to "scale out" to handle capacity? This is especially relevant now that people are considering the cloud, but may be missing out on the fundamentals. I'm interested in hearing about anything you consider a best practice from development-level tasks, to infrastructure, to management. Use your best judgement when posting multiple answers, since it may make sense to post them separately for voting purposes. (hint: you'll likely get more reputation points for many small answers than one large answer)

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  • Manic Monday - More OpenWorld Solaris Sessions: Developers, Cloud, Customer Insights, Hardware Optimization

    - by Larry Wake
    We're overflowing with Monday sessions; literally more than one person can take in. Learn more about what's new in Oracle Solaris Studio, hear about the latest x86 and SPARC hardware optimizations, get some insights on cloud deployment strategies, and find out from your peers what they're doing with Oracle Solaris. If you're an OpenWorld attendee, go to to Schedule Builder to guarantee your space in any session or lab. See yesterday's blog post and the "Focus on Oracle Solaris" guide for even more sessions. Monday, October 1st: 10:45 AM - Maximizing Your SPARC T4 Oracle Solaris Application Performance(CON6382,  Marriott Marquis - Golden Gate C3) Hear how customers and commercial software partners have reached peak performance on SPARC T4 servers and engineered systems with Oracle Solaris Studio and its latest tools for analyzing, reporting, and improving runtime performance: Autoparallelizing, high-performance compilers Performance Analyzer (used to find performance hotspots) Thread Analyzer (to expose data races and deadlocks) Code Analyzer (used to discover latent memory corruption issues) 10:45 Cloud Formation: Implementing IaaS in Practice with Oracle Solaris(CON8787, Moscone South 302) Decisions, decisions--at the same time, we've got a session that covers why Oracle Solaris is the ideal OS for public or private clouds, IaaS or PaaS, with built-in features for elastic infrastructure, unrivaled security, superfast installation and deployment, nonstop availability, and crystal-clear observability. This session will include a customer study on how Oracle Solaris is used in the cloud today to implement the Oracle stack. 12:15 PM - Customer Insight: Oracle Solaris on Oracle Exadata, Oracle Exalogic, and SPARC SuperCluster(CON8760, Moscone South 270) Hear from customers what benefits they have realized from using the Oracle stack on Oracle Exadata and Oracle’s SPARC SuperCluster and from using Oracle Solaris on those engineered systems, taking advantage of built-in lightweight OS virtualization (Zones), enterprise reliability and scale, and other key features. 1:45 PM - Case Study: Mobile Tornado Uses Oracle Technology for Better RAS and TCO?(CON4281, Moscone West 2005) Mobile Tornado develops and markets instant communication platforms, replacing traditional radio networks with cellular networks. Its critical concern is uptime. Find out how they've used Oracle Solaris, Netra SPARC T4, and Oracle Solaris Cluster, including Oracle Solaris ZFS and Zones, for their Oracle Database deployments to improve reliability and drive down cost. 3:15 PM - Technical Panel: Developing High Performance Applications on Oracle Solaris(CON7196, Marriott Marquis - Golden Gate C2) Engineers from the Oracle Solaris, Oracle Database, and Oracle Tuxedo development teams, and Oracle ISV Engineering discuss how they develop high-performance enterprise applications that take advantage of Oracle's SPARC and x86 servers, with Oracle Solaris Studio and new Oracle Solaris 11 features. Topics will include developer tools, parallel frameworks, best practices, and methodologies, as well as insights and case studies on parallelizing and optimizing application performance on Oracle Solaris. Bring your best questions! 3:15 PM -  x86 Power Management with Oracle Solaris: Current State, Opportunities, and Future(CON6271, Moscone West 2012) Another option for this time slot: learn about how Intel Xeon and Oracle Solaris work together to reduce server power consumption. This presentation addresses some of the recent power management improvements in Oracle Solaris, opportunities to further improve energy efficiency, and some future directions for Oracle Solaris power management.

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  • Webshop in Europe with high revenues.. what to use?

    - by Patrick
    I need to build a webshop for a customer with an weekly revenues more than 40.000 euros Location: Europe I was thinking to use Paypal Standard Payment (in this case the customer needs to contact paypal given the above mentioned revenues, right ? Any other solution for an european web shops ? (i.e. Paypal Payments Pro doesn't work in Europe) Also, is there any pre-built service.. to make such webshop ? thanks

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  • What are some high quality Enterprise Architecture conferences or training programs?

    - by Stimy
    I am looking for a conference or training which will give me a broad exposure to enterprise level software architecture. I've been with the same company for 10 years and we've grown to the size where we really need to lay out a framework for the applications which support our company's business. The organic growth over the last 10 years has left us with a tightly coupled and fairly messy set of applications. We need to do a better job at componentizing our business entities and have more rigorous control on the interfaces between those entities and our business processes. I'm looking to get a broad, yet practical exposure on design patterns to support that architecture (SOA, messaging, ESB's etc). I'm hoping to gain insight from folks who have direct experience with implementing or working with what would be considered an enterprise class architecture.

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  • How to manage a Closed Source High-Risk Project?

    - by abel
    I am currently planning to develop a J2EE website and wish to bring in 1 developer and 1 web designer to assist me. The project is a financial app with a niche market. I plan to keep the source closed . However, I fear that my would-be employees could easily copy the codebase and use it /sell it to a third party especially when they switch jobs. The app development will take 4-6months and perhaps more and I may have to bring in people after the app goes live. How do I keep the source to myself. Are there techniques companies use to guard their source. I foresee disabling pendrives and dvd writers on my development machines, but uploading data or attaching the code in one's mail would still be possible. My question is incomplete. But programmers who have been in my situation, please advice. How should I go about this? Building a team, maintaining code-secrecy,etc. I am looking forward to sign a secrecy contract with the employees if needed too. (Please add relevant tags) Update Thank you for all the answers. I certainly won't be disabling all USB ports and DVD writers now. But I think I should be logging activity(How exactly should I do that?) I am wary of scalpers who would join and then run off with the existing code. I haven't met any, but I have been advised to be wary of them. I would include a secrecy clause, but given this is a startup with almost no funding and in a highly competitive business niche with bigger players in the field, I doubt I would be able to detect or pursue any scalpers. How do I hire people I trust, when I don't know them personally. Their resume will be helpful but otherwise trust will develop only with time. But finally even if they do run away with the code, it is service that matters after the sale is made. So I am not really worried for the long term.

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  • SEO disasters moving domain for a high traffic website?

    - by chrism2671
    We're looking at moving our website from http://www.wikijob.co.uk to http://www.wikijob.com/uk as we spread our wings internationally. Our .co.uk website has a PR6 and received around 1/2 million visitors a month, 40% international. The wikijob.com domain, while registered for a while, has not been used nor promoted. I am concerned that moving domain could really haemorrhage our traffic and result in a loss of goodwill from Google, even if we use a 301, but equally, if we could transfer that pagerank to the .com domain, that would give us a massive head start around the world. Should we do it, or should we start over with .com and leave .co.uk as is?

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  • Does approaching SICP in clojure have a high chance of success? [on hold]

    - by ironicaldiction
    I am a third year bachelor student in a software engineering program, and I brought up the idea of reading SICP to an adviser to gain a deeper and more fundamental understanding of the principles behind all this software we engineer. He suggested not to learn scheme to complete the book (because it's not as common as modern dialects of lisp) but to do the exercises in clojure instead. My worry is that completing exercises in clojure instead of scheme will make an already difficult book tortuous. If I do attempt the book's exercises in the more modern clojure, will it be difficult to succeed (for example, because I can't find any real solutions, the syntax they teach for scheme is different, etc.), or do you think approaching the book in clojure could be just as successful as approaching it in scheme? I'm really not knowledgeable enough about either clojure or scheme to make an argument about this, so I wanted to know if I should bring it up or not.

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  • photshop: why low quality jpg saved as high quality increases the file size?

    - by Alex Angelico
    i have a low quality background about 85kb. If I open the file in Photoshop and save it, I have to save this image as 100% quality, the file size increases to 640kb. This doesn't make sense, the image si already compressed, the quality cannot be better than the source, so the 100% quality while saving should produce THE SAME FILE OPENED. The problem is, I have this background and want to add a logo image over it, and then save it. But If I do so, i have to save this with 10% quality, and the logo looks horrible. If I save this to 100% quality, the file size is huge... How can I achive this?

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  • WebCenter Content Web Search Performance: Do you really need that folder path info?

    - by Nicolas Montoya
    End-users want content at their fingertips at the speed of thought if possible. When running search operations in the WebCenter Conter Web Interface every second or fraction of a second improvement does matter. When doing some trace analysis on the systemdatabase tracing on a customer environment, we came across some SQL queries that were unnecessarily being triggered! These were related to determining the folder path for every entry part of the search result set. However, this folder path was not even being used as part of the displayed information in the user interface.Why was the folder path information being collected when it was not even displayed in the UI? We found that the configuration parameter 'FolderPathInSearchResults' was set to 'true' under Administration > Admin Server > General Configuration > Additional Configuration Variables as shown below:When executing a quicksearch by keyword we were getting 100 out of 2280 entries in the first page of the result set.When thera 'FolderPathInSearchResults' configuration parameter is set to 'true', the following queries appear in the systemdatabase tracing:100 executions for a query on the FolderFiles table for each of the documents displayed in the first page:>systemdatabase/6       12.13 11:17:48.188      IdcServer-199   1.45 ms. SELECT * FROM FolderFiles WHERE dDocName='SLC02VGVUSORAC140641' AND fLinkRank=0[Executed. Returned row(s): true]382 executions for a query of the folders tables - most of the documents that match the keyword criteria are at a folder depth level of three or four:>systemdatabase/6       12.13 11:17:48.114      IdcServer-199   2.57 ms. SELECT FolderFolders.*,FolderMetaDefaults.* FROM FolderFolders,FolderMetaDefaults WHERE FolderFolders.fFolderGUID=FolderMetaDefaults.fFolderGUID(+) AND((FolderFolders.fFolderGUID = '1EB8E527E19B09ED3FE82EE310AEA13A' ) )[Executed.Returned row(s): true]By setting this 'FolderPathInSearchResults' configuration parameter to 'false', the above queries were no longer reported in the Server Output System Audit Information.Now, let's consider a practical scenario:Search result set page = 100Average folder depth der document in the search result set: 5The number of folder path related queries will be: 100 + 5*500 = 600If each query takes slightly over 3 ms. You would have 2000 ms (2 seconds) spent in server time to get this information.The overall performance impact goes beyond seerver time execution, as this information needs to travel from the server to the browser. If the documents are further nested into the folder hierarchy, additional hundreds of queries may be executed. If folder path is not being displayed in the end-user interface profile, your system may be better of with the 'FolderPathInSearchResults' configuration parameter disabled.

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  • Dropping the full-time high-pay gig - I need help choosing a smart path that I can rely on to produce enough to survive comfortably ($2,500 per month)

    - by Jeff V
    I have about 6 years of full time experience developing web applications and tools. I know perl, python, PHP, ruby, and a good deal of SQL and relational theory. I have never had to choose a self-employed path as I have always had full time work or a bank account (credit cards) to support a big project. I'm planning to move out of the country to an area that will not offer local employment, and need some advice on what to focus on. I want to move in no more than six months, I have enough savings to live for an additional six months, but I would like to conserve it as much as possible. I enjoy taking risks, so I'm not looking for discussion of whether this is a good idea or not. I want advice on the most reliable solution given my skill set. Some paths I'm considering: Learn objective-c and build quality Apple software. Develop subscription based web tools for SEO, or other Marketing applications Attempt to acquire freelance projects by developing a reputation within open source projects, freelancer.com, and other online communities The last time I left my job, I was building a startup (that went under), and missed out living in a beautiful place due to the amount of time I worked. I would like to work 30-40 hours per week max. I can dedicate 10-15 hours per week while at my current job to prepare and learn. A preemptive thanks for the advice...

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  • Should I pass link juice to my pages on other websites that are already high PR domains?

    - by huzzah
    I am starting a new website for a local business and have entries listed for it on places like urbanspoon, yelp, google+ local, etc. I am thinking of listing these citation sites on my business website to encourage visitors of my site to go and review the business on those sites. If I dofollow I will pass link juice to my page on that site, but doesn't that mean that the very very little PR juice I have will be leached away from me? Is it better to nofollow them?

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  • Which language is productive for high phase business application development? [closed]

    - by Nizar
    If we (I and my friends) would like to build web-based products and sell it using a license approach (to renew every year for example). Which server-side language will be most suitable for our purpose? We could target the following audience: - Personal sites. - Serious small-medium companies (to sell prducts such as Help-Desks, Forms,etc.) - Restaurants (to sell online order web applications). We would like to - attract as many customers as possible. - provide updates for our prodcuts (for our customers). - make our products easy to use. There are number of open-source frameworks and languages that has potential to handle our business problems (like Django, Python, Java, etc..) However, we are not sure which one is easier to learn and has variety of tools/plugins to help us in development process. Thus we need to get you experience on this hard to decide matter. Which language and its supporting framework we should choose ?

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  • What is the reason for high power consumption in 12.04?

    - by tom
    I haven't seen this exact question posted or any related answers, so I'm re-posting. Here is the problem: After upgrading to Ubuntu 12.04 Precise Pangolin, my t420s laptop idles above 20 watts (right now with only Chrome running, I'm using 25.4 W) I had a similar problem with Ubuntu 11.10, but after much tweaking the power consumption came down < 10 W on idle. The primary culprit to the 11.10 problem was supposedly fixed by default in 12.04. So my question is, what is happening now? Computer: Lenovo Thinkpad t420s, with Intel i5-2520M @2.5 Ghz - 2x 4gb ram - disk 0 HITACHI 320 Gb - disk 1 SATA SSD 128 Gb

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  • White Hat SEO - Want to Make Your Website High Ranked?

    White-hat SEO is one of the best ways to make your website well-known on search engine optimization. This is widely utilized all over the world. There is asset of techniques which are developed in order to get desired benefit. The flow of traffic is achieved by employing search engine friendly coding.

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  • Melhoria de Performance no .NET 4.5: Multicore Just-in-Time (JIT).

    - by anobre
    Olá pessoal! Dando uma lida nas melhorias de performance da plataforma .NET 4.5, me deparei com algo extremamente interessante: Multicore Just-in-Time (JIT). A teoria é muito simples: por que não utilizar vários núcleos para a compilação JIT? Além disto, será que seria possível compilar os métodos em uma determinada ordem, onde os primeiros fossem aqueles com maior probabilidade de execução? Isto parece meio loucura mas é o que o Multicore Just-in-Time (JIT) faz. E o melhor de tudo, de uma forma extremamente simples. As aplicações ASP.NET 4.5 já o fazem por default. Em outras ocasiões, basta executar duas linhas de código: uma indicando a pasta onde o arquivo que armazenará o profile ficará, e a outra para iniciar o procedimento. Este profile é o arquivo responsável por armazenar a ordem de compilação dos métodos, para que aqueles com maior chance de serem executados mais cedo sejam compilados antes. Código para este processo: ProfileOptimization.SetProfileRoot(@"C:\ProfileRoot"); ProfileOptimization.StartProfile("profile"); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Esta otimização na compilação só será notada após a criação do profile. Portanto, na primeira vez nada será percebido. Ao final do processo, um arquivo com o nome escolhido (no caso profile) será criado, na pasta indicada como root: Fica a dica! Abraços!

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