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  • Can you recommend a good tutorial on building custom package versions?

    - by Ivan
    After installing Ubuntu 11.04 I was disappointed by the fact there are still Scala 2.7 (when 2.8 is long ago current actual branch) and Mono 2.6 (when pretty a time has passed after 2.8 release). I am not sure I could build all the packages for Mono myself, but I'd like to try making my own custom version of Scala package (and I want my system to accept it not as a different package but a version of the original, so that if I put it into a configured repository, the system will automatically upgrade to it from currently installed original 2.7). Can you recommend a good tutorial on this subject (Ubuntu deb packages building and hacking for beginners)?

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  • Java Applet Tower Defence Game needs tweeking

    - by Ephiras
    Hello :) i have made a tower defence Game for my computer science class as one of my major projects, but have encountered some rather fatal roadblocks. here they are creating a menu screen (class Menu) that can set the total number of enimies, the max number of towers, starting money and the map. i tried creating a constructor in my Main class that sets all the values to whatever the Menu class passes in. I want the Menu screen to close after a difficulty has been selected and the main class to begin. Another problem i would really like some help with is instead of having to write entire arrays i would like to create a small segment of code that runs through an entire picture and sets up an array based on that pixels color.this way i can have multiple levels just dragged into a level folder and have the program read through them. users can even create their own. so a 1 if its yellow, a two if blue and a 3 if purple, then everything else = 0; you can download all the classes and code uif you'd like here sorry about having to redirect you but i wasn't sure how to efficently add a code spoiler. help is greatly appreciated

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  • Is there such thing as a "theory of system integration"?

    - by Jeff
    There is a plethora of different programs, servers, and in general technologies in use in organizations today. We, programmers, have lots of different tools at our disposal to help solve various different data, and communication challenges in an organization. Does anyone know if anyone has done an serious thinking about how systems are integrated? Let me give an example: Hypothetically, let's say I own a company that makes specialized suits a'la Iron Man. In the area of production, I have CAD tools, machining tools, payroll, project management, and asset management tools to name a few. I also have nice design space, where designers show off their designs on big displays, some touch, some traditional. Oh, and I also have one of these new fangled LEED Platinum buildings and it has number of different computer controlled systems, like smart window shutters that close when people are in the room, a HVAC system that adjusts depending on the number of people in the building, etc. What I want to know is if anyone has done any scientific work on trying to figure out how to hook all these pieces together, so that say my access control system is hooked to my payroll system, and my phone system allowing my never to swipe a time card, and to have my phone follow me throughout the building. This problem is also more than a technology challenge. Every technology implementation enables certain human behaviours, so the human must also be considered as a part of the system. Has anyone done any work in how effectively weave these components together? FYI: I am not trying to build a system. I want to know if anyone has thoroughly studied the process of doing a large integration project, how they develop their requirements, how they studied the human behaviors, etc.

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  • I have two versions of glib on my system, and I don't know how to remove the old one

    - by Dameentsia
    While trying to compile a program (pygobject), running ./configure I am told that I don't have glib. So, I download the tarball and compile and install, no problems. now when I try to ./configure the package again, I get the following error: checking for GLIB - version >= 2.24.0... *** 'pkg-config --modversion glib-2.0' returned 2.34.2, but GLIB (2.34.0) *** was found! If pkg-config was correct, then it is best *** to remove the old version of GLib. You may also be able to fix the error *** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing *** /etc/ld.so.conf. Make sure you have run ldconfig if that is *** required on your system. *** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH *** to point to the correct configuration files no configure: error: maybe you want the pygobject-2-4 branch? Here is the entire prompt: http://pastebin.com/raw.php?i=Gs6MrTWh

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  • Oracle Launches Mobile Applications User Experience Design Patterns

    - by ultan o'broin
    OK, you heard Joe Huang (@JoeHuang_Oracle) Product Manager for Oracle Application Development Framework (ADF) Mobile. If you're an ADF developer, or a Java (yeah, Java in iOS) developer, well now you're a mobile developer as well. And, using the newly launched Applications User Experience (UX) team's Mobile UX Design Patterns, you're a UX developer rockstar too, offering users so much more than just cool functionality. Mobile Design Pattern for Inline Actions Mobile design requires a different way of thinking. Use Oracle’s mobile design patterns to design iPhone, Android, or browser-based smartphone apps. Oracle's sharing these cutting edge mobile design patterns and their baked-in, scientifically proven usability to enable Oracle customers and partners to build mobile apps quickly. The design patterns are common solutions that developers can easily apply across all application suites. Crafted by the UX team's insight into Oracle Fusion Middleware, the patterns are designed to work with the mobile technology provided by the Oracle Application Development Framework. Other great UX-related information on using ADF Mobile to design task flows and the development experience on offer are on the ADF EMG podcast series. Check out FXAer Brian 'Bex' Huff (@bex of Bezzotech talking about ADF Mobile in podcast number 6 and also number 8 which has great tips about getting going with Android and iOS mobile app development too.

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  • Azure Linux Virtual Machines Price per Hour, Computation or Running?

    - by Arjun Bajaj
    first of all, I couldn't find a StackExchange site on Cloud Computing. I think this is the most appropriate site, because some of you might be using Azure. So I just wanted to know: The Windows Azure Pricing Page shows Linux Virtual Machine Price as $0.013/hr for an extra small VM. The monthly price comes up to about $10. Is this price charged as number of hours of computation done on the VM or number of hours of running the VM? And if I shutdown the VM, will I be charged anything?

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  • Q&amp;A: Will my favourite ORM Foo work with SQL Azure?

    - by Eric Nelson
    short answer: Quite probably, as SQL Azure is very similar to SQL Server longer answer: Object Relational Mappers (ORMs) that work with SQL Server are likely but not guaranteed to work with SQL Azure. The differences between the RDBMS versions are small – but may cause problems, for example in tools used to create the mapping between objects and tables or in generated SQL from the ORM which expects “certain things” :-) More specifically: ADO.NET Entity Framework / LINQ to Entities can be used with SQL Azure, but the Visual Studio designer does not currently work. You will need to point the designer at a version of your database running of SQL Server to create the mapping, then change the connection details to run against SQL Azure. LINQ to SQL has similar issues to ADO.NET Entity Framework above NHibernate can be used against SQL Azure DevExpress XPO supports SQL Azure from version 9.3 DataObjects.Net supports SQL Azure Open Access from Telerik works “seamlessly”  - their words not mine :-) The list above is by no means comprehensive – please leave a comment with details of other ORMs that work (or do not work) with SQL Azure. Related Links: General guidelines and limitations of SQL Azure SQL Azure vs SQL Server

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  • Sortie de la quatrième beta de PySide 1.0.0, le binding Python de Qt : corrections de bogues et exécutable Windows au menu

    Sortie de PySide 1.0.0 beta 3 Elle corrige 35 bogues qualifiés de haute priorité du binding Python pour le framework Qt Par Jiyuu et dourouc05 le 07/01/2010 Nokia vient d'annoncer la sortie de la troisième beta de son binding Python du framework Qt. Cette nouvelle beta est principalement considérée comme une version de maintenance, corrigeant trente-cinq bogues de la deuxième beta, ces bogues étant qualifiés de haute priorité. Des versions corrigées de apiextractor, shiboken et libpyside, partie de la chaîne d'outils servant à la génération du binding, sont aussi disponibles. Actuellement, seule les sources de cette version sont disponibles ; des versions binaires devraient être d...

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  • How to decide where to purchase a wildcard SSL certificate?

    - by user664833
    Recently I needed to purchase a wildcard SSL certificate (because I need to secure a number of subdomains), and when I first searched for where to buy one I was overwhelmed with the number of choices, marketing claims, and price range. I created a list to help me see passed the marketing gimmicks that the greater majority of the Certificate Authorities (CAs) plaster all over their sites. In the end my personal conclusion is that pretty much the only things that matter are the price and the pleasantness of the CA's website. Question: Besides price and a nice website, is there anything worthy of my consideration in deciding where to purchase a wildcard SSL certificate?

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  • SUM of metric for normalized logical hierarchy

    - by Alex254
    Suppose there's a following table Table1, describing parent-child relationship and metric: Parent | Child | Metric (of a child) ------------------------------------ name0 | name1 | a name0 | name2 | b name1 | name3 | c name2 | name4 | d name2 | name5 | e name3 | name6 | f Characteristics: 1) Child always has 1 and only 1 parent; 2) Parent can have multiple children (name2 has name4 and name5 as children); 3) Number of levels in this "hierarchy" and number of children for any given parent are arbitrary and do not depend on each other; I need SQL request that will return result set with each name and a sum of metric of all its descendants down to the bottom level plus itself, so for this example table the result would be (look carefully at name1): Name | Metric ------------------ name1 | a + c + f name2 | b + d + e name3 | c + f name4 | d name5 | e name6 | f (name0 is irrelevant and can be excluded). It should be ANSI or Teradata SQL. I got as far as a recursive query that can return a SUM (metric) of all descendants of a given name: WITH RECURSIVE temp_table (Child, metric) AS ( SELECT root.Child, root.metric FROM table1 root WHERE root.Child = 'name1' UNION ALL SELECT indirect.Child, indirect.metric FROM temp_table direct, table1 indirect WHERE direct.Child = indirect.Parent) SELECT SUM(metric) FROM temp_table; Is there a way to turn this query into a function that takes name as an argument and returns this sum, so it can be called like this? SELECT Sum_Of_Descendants (Child) FROM Table1; Any suggestions about how to approach this from a different angle would be appreciated as well, because even if the above way is implementable, it will be of poor performance - there would be a lot of iterations of reading metrics (value f would be read 3 times in this example). Ideally, the query should read a metric of each name only once.

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  • Clementine appears in two PPAs. How can I specify which one to use?

    - by S Wilson
    The clementine package in 12.04 lacks spotify support. So I added the clementine PPA like this: sudo add-apt-repository ppa:me-davidsansome/clementine sudo apt-get update sudo apt-get install clementine Then I installed like this: sudo apt-get install clementine=1.0.1~precise Because that's the version in the clementine-specific PPA. But now the update manager wants to update to the version from the ubuntu archive because it's newer. How can I tell it to maintain clementine from the clementine PPA, not the ubuntu PPA? I realize similar questions have been asked but not exactly this, and I can't figure it out, so any help would be appreciated. Thanks.

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  • Wireless not working with an Atheros AR9285

    - by Neeraj
    I recently installed Ubuntu 12.04 and found my wireless card is not detected by OS. I tired to detect it by network manager but still it is not get output of the required command: toor@Linux:~$ sudo lshw -class network *-network description: Ethernet interface product: AR8131 Gigabit Ethernet vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:03:00.0 logical name: eth0 version: c0 serial: f0:de:f1:9e:22:4d size: 100Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI duplex=full firmware=N/A ip=124.123.227.84 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:44 memory:f2400000-f243ffff ioport:2000(size=128) *-network UNCLAIMED description: Network controller product: AR9285 Wireless Network Adapter (PCI-Express) vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:04:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:f2500000-f250ffff and toor@Linux:~$ rfkill list all 0: ideapad_wlan: Wireless LAN Soft blocked: yes Hard blocked: no 1: ideapad_bluetooth: Bluetooth Soft blocked: yes Hard blocked: no Please let me know what more info is required to resolve it.

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  • Algorithm to measure how "diffused" 5,000 pennies are in an economy?

    - by makerofthings7
    Please allow me to use this example/metaphor to describe an algorithm I need. Objects There are 5 thousand pennies. There are 50 cups. There is a tracking history (Passport "stamp" etc) that is associated with each penny as it moves between cups. Definition I'll define a "highly diffused" penny as one that passes through many cups. A "poorly diffused" penny is one that either passes back and forth between 2 cups Question How can I objectively measure the diffusion of a penny as: The number of moves the penny has gone through The number of cups the penny has been in A unit of time (day, week, month) Why am I doing this? I want to detect if a cup is hoarding pennies. Resistance from bad actors Since hoarding is bad, the "bad cup" may simply solicit a partner and simply move pennies between each other. This will reduce the amount of time a coin isn't in transit, and would skew hoarding detection. A solution might be to detect if a cup (or set of cups) are common "partners" with each other, though I'm not sure how to think though this problem. Broad applicability Any assistance would be helpful, since I would think that this algorithm is common to Economics The study of migration patterns of animals, citizens of a country Other natural occurring phenomena ... and probably exists as a term or concept I'm unfamiliar with.

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  • USB device not accepting address

    - by Mike Williamson
    I have a series of machines that I am building for work that have usb card readers. When I boot them I get a long series of messages: ... [ 2347.768419] hub 1-6:1.0: unable to enumerate USB device on port 6 [ 2347.968178] usb 1-6.6: new full-speed USB device number 10 using ehci_hcd [ 2352.552020] usb 1-6.6: device not accepting address 10, error -32 [ 2352.568421] hub 1-6:1.0: unable to enumerate USB device on port 6 [ 2352.768179] usb 1-6.6: new full-speed USB device number 12 using ehci_hcd [ 2357.352033] usb 1-6.6: device not accepting address 12, error -32 ... On some older machines this only takes a few attempts before the card reader finally accepts an address, while on newer machines it can take many minutes. Changing hardware is not an option and plugging the usb card reader into a different port is only an option for the older manchines. This was a problem under 11.04 and I am now running the 12.04 beta and its still happening. Is there something I can do in the software (a udev rule perhaps?) that would fix this? Any advice appreciated. I'm happy to provide more details if you need them.

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  • Windows 8 Step by Step Review: Solid Book for Beginners

    - by The Geek
    You might be surprised to see us reviewing a Windows 8 book, especially considering we recently launched our own book, The How-To Geek Guide to Windows 8 – but since we don’t (yet) have a paperback version, we may as well give you another option. Note: we are indeed working on a paperback version of our book, but it’ll probably be a month before it’s available. Plus, the Step-by-Step book is written by Ciprian Rusen, a personal friend of mine, and it’s published by none other than Microsoft Press. Our Geek Trivia App for Windows 8 is Now Available Everywhere How To Boot Your Android Phone or Tablet Into Safe Mode HTG Explains: Does Your Android Phone Need an Antivirus?

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  • High Availability documents for OBIA

    - by Lia Nowodworska - Oracle
    There are 2 white papers that have been created by Product Management and Advanced Resolution team (thanks Rajesh, Archana). These documents describe how to deploy a high-availability environment for the Weblogic components of BI Applications 11.1.1.8.1 and 11.1.1.7.1 including the Oracle Data Integrator. New  Configuring High Availability for Oracle Business Intelligence Applications Version 11.1.1.8.1 (Doc ID 1679319.1)  Updated Configuring High Availability for Oracle Business Intelligence Applications Version 11.1.1.7.1 (Doc ID 1587873.1)  When implementing OBIA please take some time to review one or both of the papers. Do you still have a quick question that you want an expert to have a look at: check in the OBIA Community:

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  • Verifying Office 2010 SP1 Installation

    - by Chris Heacock
    So you downloaded and installed SP1, but now you want to verify that SP1 actually installed! Looking at Outlook's Help Screen under Help->About, it isn't readily apparent that SP1 is installed. Like me, you probably expected to see 14.1.something. Perhaps 14.0.something SP1, right? If you click on that "Additional Version and Copyright Information", another window will pop up and show you a bit more useful info (if you don't have the version numbers committed to memory) That window *does* give us that comforting SP1, and now we can determine that if you have Office 14.1.6023.1000 (and beyond) you are indeed runnning Office 2010 SP1!

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  • Le logiciel de protection de F-Secure a pris des fichiers Mac pour des malwares, le problème est heureusement corrigé

    La version bêta du logiciel de protection de F-Secure a pris des fichiers Mac pour des malwares, le problème est heureusement corrigé Un petit rien peu parfois se transformer en quelque chose de gigantesque, avec un effet boule de neige. C'est ce qu'est en train de constater actuellement F-Secure. La firme spécialisée dans la sécurité informatique a rencontré un bogue sur son programme anti-virus qui provoque l'indignation d'un grand nombre d'internautes. En effet, le logiciel, qui est actuellement en version bêta pour Mac OS X a de "sérieux problèmes de fausse alarme". Sur les Macs sur lesquels il est installé, il a par accident supprimé des fichiers sains en les prenant pour des malwares. Des erreurs de ...

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  • Determining Whether a String Is Contained Within a String Array (Case Insensitive)

    About once every couple of months I need to write a bit of code that does one thing if a particular string is found within an array of strings and something else if it is not ignoring differences in case. For whatever reason, I never seem to remember the code snippet to accomplish this, so after spending 10 minutes of research today I thought I'd write it down here in an effort to help commit it to memory or, at the very least, serve as a quick place to find the answer when the need arises again.So without further adieu, here it is:Visual Basic Version:If stringArrayName.Contains("valueToLookFor", StringComparer.OrdinalIgnoreCase) Then ... Else ... End IfC# Version:if (stringArrayName.Contains("valueToLookFor", StringComparer.OrdinalIgnoreCase)) ... else ...Without the StringComparer.OrdinalIgnoreCase the search will be case-sensitive. For more information on comparing strings, see: New Recommendations for Using Strings in Microsoft .NET 2.0.Happy Programming!Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Support Question? Immediate response!

    - by Alliances & Channels Redaktion
    In the support case, it usually has to go fast - as it is well if you have already resolved fundamental questions in advance. For all partners who wish to learn more about support topics, about the use of the SI number, about My Oracle Support, the exact sequence of support processes and service request edits or simply about the Oracle Support Portfolio, it is advisable to visit the Oracle Partner Days. There Oracle Support in the exhibition area is represented with an information booth! Our team will be there individually on general and very specific questions, such as: - What are my rights with which partner SI number? - How do I open or escalate a service request? - What should I do when a service request is processed in the U.S.? - What exactly is Platinum Support? - Can we use Platinum Support as a partner? - How can I use "My Oracle Support" efficiently? Incidentally: The participation at the Oracle Partner Day is also worthwhile, if you are already a Support Professional. As always attracts a varied program of training opportunities, information, networking and entertainment! Please register here for the Oracle Partner Days: 22. 10.2013 Montreux/ Switzerland 29.10.2013 Zürich/ Switzerland 29.10.2013 Utrecht/ Netherlands 07.11.2013 Gent/ Belgium

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  • In excel how can I consolidate information in rows based on 2 critera?

    - by Kevin
    I have a worksheet with columns A through BR. Column B contains customers (repeating values) Column J contains a filing date (repeating values) Column O contains loan information I would like to consolidate customers and filing date into 1 row and then have the loan information in subsequent rows appended to the end. Data looks like: Number | Customer | ...| File Date |...| Loan Information| 1 | Customer 1 | ...| 11/30/2012|...| Loan Info 1 2 | Customer 1 | ...| 11/30/2012|...| Loan Info 2 3 | Customer 1 | ...| 05/12/2011|...| Loan Info 1 4 | Customer 1 | ...| 05/12/2011|...| Loan Info 2 5 | Customer 2 | ...| 10/31/2012|...| Loan Info 1 6 | Customer 2 | ...| 10/31/2012|...| Loan Info 2 7 | Customer 2 | ...| 10/31/2012|...| Loan Info 3 8 | Customer 3 | ...| 03/16/2010|...| Loan Info 1 9 | Customer 3 | ...| 03/16/2010|...| Loan Info 2 10 | Customer 3 | ...| 07/01/2013|...| Loan Info 1 I would like to get to: Number | Customer | ...| File Date |...| Loan Information|...|BR|Loan Info 2| Loan Info 3| ect| 1 | Customer 1 | ...| 11/30/2012|...| Loan Info 1 |...|BR|Loan Info 2 3 | Customer 1 | ...| 05/12/2011|...| Loan Info 1 |...|BR|Loan Info 2 5 | Customer 2 | ...| 10/31/2012|...| Loan Info 1 |...|BR|Loan Info 2|Loan Info 3 8 | Customer 3 | ...| 03/16/2010|...| Loan Info 1 |...|BR|Loan Info 2 10 | Customer 3 | ...| 07/01/2013|...| Loan Info 1

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  • Is it possible to preview arbitrary formats in Nautilus?

    - by alfC
    I recently found out that Nautilus (Ubuntu 12.04 at least) can show thumbnails of files of non-image formats, for example (data grapher) grace files (.agr) shows a small version of the graph contained in its data. Obviously, there some library or script that is processing the file, making the image, and allowing nautilus to show a small version of it. This made me think that in principle any file that potentially can be processed into an image can serve as a Nautilus thumbnail. For example, a .tex file (which can be converted to .pdf) or a gnuplot script can be displayed as a thumbnail when possible. In the case of .tex file, the correspoding .pdf can be created by the command pdflatex file.tex. The question is, how can I tell Nautilus to create a thumbnail for an arbitrary format and how do I specify the commands to do so within Nautilus?

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  • What data should be cached in a multiplayer server, relative to AI and players?

    - by DevilWithin
    In a virtual place, fully network driven, with an arbitrary number of players and an arbitrary number of enemies, what data should be cached in the server memory, in order to optimize smooth AI simulation? Trying to explain, lets say player A sees player B to E, and enemy A to G. Each of those players, see player A, but not necessarily each other. Same applies to enemies. Think of this question from a topdown perspective please. In many cases, for example, when a player shoots his gun, the server handles the sound as a radial "signal" that every other entity within reach "hear" and react upon. Doing these searches all the time for a whole area, containing possibly a lot of unrelated players and enemies, seems to be an issue, when the budget for each AI agent is so small. Should every entity cache whatever enters and exits from its radius of awareness? Is there a great way to trace the entities close by without flooding the memory with such caches? What about other AI related problems that may arise, after assuming the previous one works well? We're talking about environments with possibly hundreds of enemies, a swarm.

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  • Which opcodes are faster at the CPU level?

    - by Geotarget
    In every programming language there are sets of opcodes that are recommended over others. I've tried to list them here, in order of speed. Bitwise Integer Addition / Subtraction Integer Multiplication / Division Comparison Control flow Float Addition / Subtraction Float Multiplication / Division Where you need high-performance code, C++ can be hand optimized in assembly, to use SIMD instructions or more efficient control flow, data types, etc. So I'm trying to understand if the data type (int32 / float32 / float64) or the operation used (*, +, &) affects performance at the CPU level. Is a single multiply slower on the CPU than an addition? In MCU theory you learn that speed of opcodes is determined by the number of CPU cycles it takes to execute. So does it mean that multiply takes 4 cycles and add takes 2? Exactly what are the speed characteristics of the basic math and control flow opcodes? If two opcodes take the same number of cycles to execute, then both can be used interchangeably without any performance gain / loss? Any other technical details you can share regarding x86 CPU performance is appreciated

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  • SQL Server Express Profiler

    - by David Turner
    During a recent project, while waiting for our Development Database to be provisioned on the clients corporate SQL Server Environment (these things can sometimes take weeks or months to be setup), we began our initial development against a local instance on SQL Server Express, just as an interim measure until the Development database was live.  This was going just fine, until we found that we needed to do some profiling to understand a problem we were having with the performance of our ORM generated Data Access Layer.  The full version of SQL Server Management Studio includes a profiler, that we could use to help with this kind of problem, however the Express version does not, so I was really pleased to find that there is a freely available Profiler for SQL Server Express imaginatively titled ‘SQL Server Express Profiler’, and it worked great for us.  http://sites.google.com/site/sqlprofiler/

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