Search Results

Search found 8262 results on 331 pages for 'optimization algorithm'.

Page 255/331 | < Previous Page | 251 252 253 254 255 256 257 258 259 260 261 262  | Next Page >

• Difference between key_buffers and recommendation

  - by Typeoneerror

  I'm looking to add a bit of memory to MySQL on a Linode VPS server on which I've got a small facebook (canvas app) PHP app using MySQL running. I'm not super familiar with MySQL optimization so I'm hoping to find a simple answer. I think I want to increase the key_buffer size (the default is 16M) to something like 32M to start, but I'm not sure if I need to tweak anything else as well. All I've done so far is increase the query_cache_size to 32M from 16M. There's also key_buffer under [mysqld] and key_buffer under [isamchk]. What are the difference between those two? If I have Linode 2048MB (http://www.linode.com) VPS, what would recommend I set the buffers to? I don't expect this site to have tons of visitors, but I'd like it to be as optimized as possible. Definitely way more heavy on the database access than PHP and very few HTTP requests.

  Read the article

• Mounting Solaris UFS partition on Debian(with FreeBSD kernel)

  - by hayalci

  I have some disks that were being used on a Solaris system. The disks are formatted as UFS. I attached them to a Debian system (with FreeBSD kernel. Debian/kFreeBSD), but I cannot mount them. $ mount -t ufs /dev/da2s1 /mnt/diska mount: /dev/da2s1 : Invalid argument Also the tunefs.ufs does not work; $ tunefs.ufs -p /dev/da2s1 tunefs.ufs: /dev/da2s1: could not read superblock to fill out disk Is there an incompatibility between FreeBSD UFS and Solaris UFS? Is it possible to mount one, under the other OS ? Note: tunefs.ufs works on the root partition $ tunefs.ufs -p /dev/da7s2 tunefs.ufs: ACLs: (-a) disabled tunefs.ufs: MAC multilabel: (-l) disabled tunefs.ufs: soft updates: (-n) disabled tunefs.ufs: gjournal: (-J) disabled tunefs.ufs: maximum blocks per file in a cylinder group: (-e) 2048 tunefs.ufs: average file size: (-f) 16384 tunefs.ufs: average number of files in a directory: (-s) 64 tunefs.ufs: minimum percentage of free space: (-m) 8% tunefs.ufs: optimization preference: (-o) time tunefs.ufs: volume label: (-L)

  Read the article

• Should `keepalive_timeout` be removed from Nginx config?

  - by Bryson

  Which is the better configuration/optimization: to explicitly limit the keepalive_timeout or to allow Nginx to kill keepalive connections on its own? I have seen two conflicting recommendations regarding the keepalive_timeout directive for Nginx. They are as follows: # How long to allow each connection to stay idle; longer values are better # for each individual client, particularly for SSL, but means that worker # connections are tied up longer. (Default: 65) keepalive_timeout 20; and # You should remove keepalive_timeout from your formula. # Nginx closes keepalive connections when the # worker_connections limit is reached. The Nginx documentation for keepalive_timeout makes no mention of the automatic killing, and I have only seen this recommendation once, but it intrigues me. This server serves exclusively TLS-secured connections, and all non-encrypted connections are immediately rerouted to the https:// version of the same URL.

  Read the article

• High CPU Steal percentage on Amazon EC2 Instance

  - by Aditya Patawari

  I am experiencing high CPU steal percentage in a Amazon EC2 large instance. I know it means that my virtual CPU is waiting on the real CPU of the machine for time. My question is that what can I do to reduce this percentage and get maximum out of the CPU? Steal percentage is consistently at 20%. System load crosses 10 when this happens. I have checked memory and network and I am sure that they are not the bottleneck. Is that normal for such environment? Also are there any system level optimization techniques for reducing steal percentage form the virtual instance? avg-cpu: %user %nice %system %iowait %steal %idle 52.38 0.00 8.23 0.00 21.21 18.18

  Read the article

• Does the .NET Framework need to be reoptimized after upgrading to a new CPU microarchitecture?

  - by Louis

  I believe that the .NET Framework will optimize certain binaries targeting features specific to the machine it's installed on. After changing the CPU from an Intel Nehalem to a Haswell chip, should the optimization be run again manually? If so, what is the process for that? Between generations here are some notable additions: Westmere: AES instruction set Sandy Bridge: Advanced Vector Extensions Ivy Bridge: RdRand (hardware random number generator), F16C (16-bit Floating-point conversion instructions) Haswell: Haswell New Instructions (includes Advanced Vector Extensions 2 (AVX2), gather, BMI1, BMI2, ABM and FMA3 support) So my, albeit naive, thought process was that the optimizations could take advantage of these in general cases. For example, perhaps calls to the Random library could utilize the hardware-RNG on Ivy Bridge and later models.

  Read the article

• Hardware advice for bitmap / openGL image processing server?

  - by pdizz

  I am trying to work out a build for a processing server to handle bitmap processing as well as openGL rendering for chroma-keying images and Photoshop automation. My searches here and on Google have turned up surprisingly few results, and seeing that there aren't tags for bitmap or image processing I take it this is a specialized application. The bitmap processing is very cpu-intensive while the chroma-keying and Photoshop stuff is gpu-intensive. I doubt this is a case of over-optimization as our company batches thousands of images a day (currently on individual workstations) and any saving in processing time and workstation down-time would be beneficial. Does anyone have any experience with this type of processing server? Any special considerations that would go into a build like this or am I over-thinking it?

  Read the article

• maven sonar problem

  - by senzacionale

  I want to use sonar for analysis but i can't get any data in localhost:9000 <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <artifactId>KIS</artifactId> <groupId>KIS</groupId> <version>1.0</version> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-antrun-plugin</artifactId> <version>1.4</version> <executions> <execution> <id>compile</id> <phase>compile</phase> <configuration> <tasks> <property name="compile_classpath" refid="maven.compile.classpath"/> <property name="runtime_classpath" refid="maven.runtime.classpath"/> <property name="test_classpath" refid="maven.test.classpath"/> <property name="plugin_classpath" refid="maven.plugin.classpath"/> <ant antfile="${basedir}/build.xml"> <target name="maven-compile"/> </ant> </tasks> </configuration> <goals> <goal>run</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project> output when running sonar: jar file is empty [INFO] Executed tasks [INFO] [resources:testResources {execution: default-testResources}] [WARNING] Using platform encoding (Cp1250 actually) to copy filtered resources, i.e. build is platform dependent! [INFO] skip non existing resourceDirectory J:\ostalo_6i\KIS deploy\ANT\src\test\resources [INFO] [compiler:testCompile {execution: default-testCompile}] [INFO] No sources to compile [INFO] [surefire:test {execution: default-test}] [INFO] No tests to run. [INFO] [jar:jar {execution: default-jar}] [WARNING] JAR will be empty - no content was marked for inclusion! [INFO] Building jar: J:\ostalo_6i\KIS deploy\ANT\target\KIS-1.0.jar [INFO] [install:install {execution: default-install}] [INFO] Installing J:\ostalo_6i\KIS deploy\ANT\target\KIS-1.0.jar to C:\Documents and Settings\MitjaG\.m2\repository\KIS\KIS\1.0\KIS-1.0.jar [INFO] ------------------------------------------------------------------------ [INFO] Building Unnamed - KIS:KIS:jar:1.0 [INFO] task-segment: [sonar:sonar] (aggregator-style) [INFO] ------------------------------------------------------------------------ [INFO] [sonar:sonar {execution: default-cli}] [INFO] Sonar host: http://localhost:9000 [INFO] Sonar version: 2.1.2 [INFO] [sonar-core:internal {execution: default-internal}] [INFO] Database dialect class org.sonar.api.database.dialect.Oracle [INFO] ------------- Analyzing Unnamed - KIS:KIS:jar:1.0 [INFO] Selected quality profile : KIS, language=java [INFO] Configure maven plugins... [INFO] Sensor SquidSensor... [INFO] Sensor SquidSensor done: 16 ms [INFO] Sensor JavaSourceImporter... [INFO] Sensor JavaSourceImporter done: 0 ms [INFO] Sensor AsynchronousMeasuresSensor... [INFO] Sensor AsynchronousMeasuresSensor done: 15 ms [INFO] Sensor SurefireSensor... [INFO] parsing J:\ostalo_6i\KIS deploy\ANT\target\surefire-reports [INFO] Sensor SurefireSensor done: 47 ms [INFO] Sensor ProfileSensor... [INFO] Sensor ProfileSensor done: 16 ms [INFO] Sensor ProjectLinksSensor... [INFO] Sensor ProjectLinksSensor done: 0 ms [INFO] Sensor VersionEventsSensor... [INFO] Sensor VersionEventsSensor done: 31 ms [INFO] Sensor CpdSensor... [INFO] Sensor CpdSensor done: 0 ms [INFO] Sensor Maven dependencies... [INFO] Sensor Maven dependencies done: 16 ms [INFO] Execute decorators... [INFO] ANALYSIS SUCCESSFUL, you can browse http://localhost:9000 [INFO] Database optimization... [INFO] Database optimization done: 172 ms [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESSFUL [INFO] ------------------------------------------------------------------------ [INFO] Total time: 6 minutes 16 seconds [INFO] Finished at: Fri Jun 11 08:28:26 CEST 2010 [INFO] Final Memory: 24M/43M [INFO] ------------------------------------------------------------------------ any idea why, i successfully compile with maven ant plugin java project.

  Read the article

• Can the STREAM and GUPS (single CPU) benchmark use non-local memory in NUMA machine

  - by osgx

  Hello I want to run some tests from HPCC, STREAM and GUPS. They will test memory bandwidth, latency, and throughput (in term of random accesses). Can I start Single CPU test STREAM or Single CPU GUPS on NUMA node with memory interleaving enabled? (Is it allowed by the rules of HPCC - High Performance Computing Challenge?) Usage of non-local memory can increase GUPS results, because it will increase 2- or 4- fold the number of memory banks, available for random accesses. (GUPS typically limited by nonideal memory-subsystem and by slow memory bank opening/closing. With more banks it can do update to one bank, while the other banks are opening/closing.) Thanks. UPDATE: (you may nor reorder the memory accesses that the program makes). But can compiler reorder loops nesting? E.g. hpcc/RandomAccess.c /* Perform updates to main table. The scalar equivalent is: * * u64Int ran; * ran = 1; * for (i=0; i<NUPDATE; i++) { * ran = (ran << 1) ^ (((s64Int) ran < 0) ? POLY : 0); * table[ran & (TableSize-1)] ^= stable[ran >> (64-LSTSIZE)]; * } */ for (j=0; j<128; j++) ran[j] = starts ((NUPDATE/128) * j); for (i=0; i<NUPDATE/128; i++) { /* #pragma ivdep */ for (j=0; j<128; j++) { ran[j] = (ran[j] << 1) ^ ((s64Int) ran[j] < 0 ? POLY : 0); Table[ran[j] & (TableSize-1)] ^= stable[ran[j] >> (64-LSTSIZE)]; } } The main loop here is for (i=0; i<NUPDATE/128; i++) { and the nested loop is for (j=0; j<128; j++) {. Using 'loop interchange' optimization, compiler can convert this code to for (j=0; j<128; j++) { for (i=0; i<NUPDATE/128; i++) { ran[j] = (ran[j] << 1) ^ ((s64Int) ran[j] < 0 ? POLY : 0); Table[ran[j] & (TableSize-1)] ^= stable[ran[j] >> (64-LSTSIZE)]; } } It can be done because this loop nest is perfect loop nest. Is such optimization prohibited by rules of HPCC?

  Read the article

• Overriding Object.Equals() instance method in C#; now Code Analysis / FxCop warning CA2218: "should

  - by Chris W. Rea

  I've got a complex class in my C# project on which I want to be able to do equality tests. It is not a trivial class; it contains a variety of scalar properties as well as references to other objects and collections (e.g. IDictionary). For what it's worth, my class is sealed. To enable a performance optimization elsewhere in my system (an optimization that avoids a costly network round-trip), I need to be able to compare instances of these objects to each other for equality – other than the built-in reference equality – and so I'm overriding the Object.Equals() instance method. However, now that I've done that, Visual Studio 2008's Code Analysis a.k.a. FxCop, which I keep enabled by default, is raising the following warning: warning : CA2218 : Microsoft.Usage : Since 'MySuperDuperClass' redefines Equals, it should also redefine GetHashCode. I think I understand the rationale for this warning: If I am going to be using such objects as the key in a collection, the hash code is important. i.e. see this question. However, I am not going to be using these objects as the key in a collection. Ever. Feeling justified to suppress the warning, I looked up code CA2218 in the MSDN documentation to get the full name of the warning so I could apply a SuppressMessage attribute to my class as follows: [SuppressMessage("Microsoft.Naming", "CA2218:OverrideGetHashCodeOnOverridingEquals", Justification="This class is not to be used as key in a hashtable.")] However, while reading further, I noticed the following: How to Fix Violations To fix a violation of this rule, provide an implementation of GetHashCode. For a pair of objects of the same type, you must ensure that the implementation returns the same value if your implementation of Equals returns true for the pair. When to Suppress Warnings ----- Do not suppress a warning from this rule. [arrow & emphasis mine] So, I'd like to know: Why shouldn't I suppress this warning as I was planning to? Doesn't my case warrant suppression? I don't want to code up an implementation of GetHashCode() for this object that will never get called, since my object will never be the key in a collection. If I wanted to be pedantic, instead of suppressing, would it be more reasonable for me to override GetHashCode() with an implementation that throws a NotImplementedException? Update: I just looked this subject up again in Bill Wagner's good book Effective C#, and he states in "Item 10: Understand the Pitfalls of GetHashCode()": If you're defining a type that won't ever be used as the key in a container, this won't matter. Types that represent window controls, web page controls, or database connections are unlikely to be used as keys in a collection. In those cases, do nothing. All reference types will have a hash code that is correct, even if it is very inefficient. [...] In most types that you create, the best approach is to avoid the existence of GetHashCode() entirely. ... that's where I originally got this idea that I need not be concerned about GetHashCode() always.

  Read the article

• Mapping a Vertex Buffer in DirectX11

  - by judeclarke

  I have a VertexBuffer that I am remapping on a per frame base for a bunch of quads that are constantly updated, sharing the same material\index buffer but have different width/heights. However, currently right now there is a really bad flicker on this geometry. Although it is flickering, the flicker looks correct. I know it is the vertex buffer mapping because if I recreate the entire VB then it will render fine. However, as an optimization I figured I would just remap it. Does anyone know what the problem is? The length (width, size) of the vertex buffer is always the same. One might think it is double buffering, however, it would not be double buffering because it only happens when I map/unmap the buffer, so that leads me to believe that I am setting some parameters wrong on the creation or mapping. I am using DirectX11, my initialization and remap code are: Initialization code D3D11_BUFFER_DESC bd; ZeroMemory( &bd, sizeof(bd) ); bd.Usage = D3D11_USAGE_DYNAMIC; bd.ByteWidth = vertCount * vertexTypeWidth; bd.BindFlags = D3D11_BIND_VERTEX_BUFFER; //bd.CPUAccessFlags = 0; bd.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE; D3D11_SUBRESOURCE_DATA InitData; ZeroMemory( &InitData, sizeof(InitData) ); InitData.pSysMem = vertices; mVertexType = vertexType; HRESULT hResult = device->CreateBuffer( &bd, &InitData, &m_pVertexBuffer ); // This will be S_OK if(hResult != S_OK) return false; Remap code D3D11_MAPPED_SUBRESOURCE resource; HRESULT hResult = deviceContext->Map(m_pVertexBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &resource); // This will be S_OK if(hResult != S_OK) return false; resource.pData = vertices; deviceContext->Unmap(m_pVertexBuffer, 0);

  Read the article

• URL Parts available to URL Rewrite Rules

  - by OWScott

  URL Rewrite is a powerful URL rewriting tool available for IIS7 and newer.  Your rewriting options are almost unlimited, giving you the ability to optimize URLs for search engine optimization (SEO), support multiple domain names on a single site, hiding complex paths and much more. URL Rewrite allows you to use any Server Variable as conditions, and with URL Rewrite 2.0, you can also update them on the fly.  To see all variables available to your site, see this post. An understanding of the parts of a complete URL are essential to working with URL Rewrite, so I’ll include the basics here.  Ruslan Yakushev’s configuration reference was my authoritative source for this. Take this URL for example: The URL is http://www.bing.com/search?q=IIS+url+rewrite The parts of the URL are: http(s)://<host>:<port>/<path>?<querystring> Part Example Server Variable http(s) http SERVER_PORT_SECURE or HTTPS = on/off <host> www.bing.com HTTP_HOST <port> Default is 80 SERVER_PORT <path> search The rule pattern in URL Rewrite <path> /search PATH_INFO <querystring> q=IIS+url+rewrite QUERY_STRING entire URL path with querystring /search?q=IIS+url+rewrite REQUEST_URI It’s important to note that /, : and ? aren’t included in some of the server variables. Understanding which slashes are included is important to creating successful rules.

  Read the article

• Update on ASP.NET MVC 3 RC2 (and a workaround for a bug in it)

  - by ScottGu

  Last week we published the RC2 build of ASP.NET MVC 3.  I blogged a bunch of details about it here. One of the reasons we publish release candidates is to help find those last “hard to find” bugs. So far we haven’t seen many issues reported with the RC2 release (which is good) - although we have seen a few reports of a metadata caching bug that manifests itself in at least two scenarios: Nullable parameters in action methods have problems: When you have a controller action method with a nullable parameter (like int? – or a complex type that has a nullable sub-property), the nullable parameter might always end up being null - even when the request contains a valid value for the parameter. [AllowHtml] doesn’t allow HTML in model binding: When you decorate a model property with an [AllowHtml] attribute (to turn off HTML injection protection), the model binding still fails when HTML content is posted to it. Both of these issues are caused by an over-eager caching optimization we introduced very late in the RC2 milestone.  This issue will be fixed for the final ASP.NET MVC 3 release.  Below is a workaround step you can implement to fix it today. Workaround You Can Use Today You can fix the above issues with the current ASP.NT MVC 3 RC2 release by adding one line of code to the Application_Start() event handler within the Global.asax class of your application: The above code sets the ModelMetaDataProviders.Current property to use the DataAnnotationsModelMetadataProvider.  This causes ASP.NET MVC 3 to use a meta-data provider implementation that doesn’t have the more aggressive caching logic we introduced late in the RC2 release, and prevents the caching issues that cause the above issues to occur.  You don’t need to change any other code within your application.  Once you make this change the above issues are fixed.  You won’t need to have this line of code within your applications once the final ASP.NET MVC 3 release ships (although keeping it in also won’t cause any problems). Hope this helps – and please keep any reports of issues coming our way, Scott P.S. In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu

  Read the article

• Java Spotlight Episode 99: Daniel Blaukopf on JavaFX for Embedded Systems

  - by Roger Brinkley

  Interview with  Daniel Blaukopf on JavaFX for Embedded Systems Right-click or Control-click to download this MP3 file. You can also subscribe to the Java Spotlight Podcast Feed to get the latest podcast automatically. If you use iTunes you can open iTunes and subscribe with this link:  Java Spotlight Podcast in iTunes. Show Notes News Top 5 Reasons to go to JavaOne 5. Chance to see the future of Java Technical Keynotes and sessions The pavillion The new Embedded@JavaOne conference 4. The meetings outside the scope of the conference Top 10 Reasons to Attend the Oracle Appreciation Event GlassFish Community Event at JavaOne 2012 Sundays User Group Forum 3. It’s like drinking from firehose Less keynotes more sessions - 20% more 60% of the talks are external to HOLs Tutorials OracleJava University classes on Sunday - Top Five Reasons You Should Attend Java University at JavaOne 2. Students are free 1. It’s not what you see it’s who you will meet Events Sep 10-15, IMTS 2012 Conference,  Chicago Sep 12,  The Coming M2M Revolution: Critical Issues for End-to-End Software and Systems Development,  Webinar Sep 30-Oct 4, JavaONE, San Francisco Oct 3-4, Java Embedded @ JavaONE, San Francisco Oct 15-17, JAX London Oct 30-Nov 1, Arm TechCon, Santa Clara Oct 22-23, Freescale Technology Forum - Japan, Tokyo Oct 31, JFall, Netherlands Nov 2-3, JMagreb, Morocco Nov 13-17, Devoxx, Belgium Feature InterviewDaniel Blaukopf is the Embedded Java Client Architect at Oracle, working on JavaFX. Daniel's focus in his 14 years in the Java organization has been mobile and embedded devices, including working with device manufacturers to port and tune all levels of the Java stack to their hardware and software environments. Daniel's particular interests are: graphics, performance optimization and functional programming.

  Read the article

• Favorite Programmer Quotes…

  - by SGWellens

    "A computer once beat me at chess, but it was no match for me at kick boxing." — Emo Philips   "There are only 10 types of people in the world, those who understand binary and those who don't. " – Unknown.   "Premature optimization is the root of all evil." — Donald Knuth   "I should have become a doctor; then I could bury my mistakes." — Unknown   "Code softly and carry a large backup thumb drive." — Me   "Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live." — Martin Golding   "DDE…the protocol from hell"— Charles Petzold   "Just because a thing is new don't mean that it's better" — Will Rogers   "The mark of a mature programmer is willingness to throw out code you spent time on when you realize it's pointless." — Bram Cohen   "A good programmer is someone who looks both ways before crossing a one-way street." — Doug Linder   "The early bird may get the worm but it's the second mouse that gets the cheese." — Unknown   I hope someone finds this amusing. Steve Wellens CodeProject

  Read the article

• Is recursion really bad?

  - by dotneteer

  After my previous post about the stack space, it appears that there is perception from the feedback that recursion is bad and we should avoid deep recursion. After writing a compiler, I know that the modern computer and compiler are complex enough and one cannot automatically assume that a hand crafted code would out-perform the compiler optimization. The only way is to do some prototype to find out. So why recursive code may not perform as well? Compilers place frames on a stack. In additional to arguments and local variables, compiles also need to place frame and program pointers on the frame, resulting in overheads. So why hand-crafted code may not performance as well? The stack used by a compiler is a simpler data structure and can grow and shrink cleanly. To replace recursion with out own stack, our stack is allocated in the heap that is far more complicated to manage. There could be overhead as well if the compiler needs to mark objects for garbage collection. Compiler also needs to worry about the memory fragmentation. Then there is additional complexity: CPUs have registers and multiple levels of cache. Register access is a few times faster than in-CPU cache access and is a few 10s times than on-board memory access. So it is up to the OS and compiler to maximize the use of register and in-CPU cache. For my particular problem, I did an experiment to rewrite my c# version of recursive code with a loop and stack approach. So here are the outcomes of the two approaches:   Recursive call Loop and Stack Lines of code for the algorithm 17 46 Speed Baseline 3% faster Readability Clean Far more complex So at the end, I was able to achieve 3% better performance with other drawbacks. My message is never assuming your sophisticated approach would automatically work out better than a simpler approach with a modern computer and compiler. Gage carefully before committing to a more complex approach.

  Read the article

• Nuggets of wisdom?

  - by Bill Karwin

  There are many quotes from famous computer scientists that have become the wisdom that guides our profession. For example: "Premature optimization is the root of all evil in programming." Donald Knuth (citing Hoare's Dictum) "Everyone knows that debugging is twice as hard as writing a program in the first place. So if you're as clever as you can be when you write it, how will you ever debug it?" Brian Kernighan And so on. My question is, what are your favorite words of wisdom about programming from someone who is not famous? Was it a friend, a coworker, or a teacher, or a family member? For example, a technical writer friend of mine said: "You can't get the right answers unless you ask the right questions." Thanks for all the contributions! The answer I selected was (a) specifically coding-related, and (b) stated by someone who is not technically famous (though he has a popular blog and a podcast and runs StackOverflow). I.e. he's no Bill Gates or Yogi Berra.

  Read the article

• CodePlex Daily Summary for Friday, May 07, 2010

  CodePlex Daily Summary for Friday, May 07, 2010New ProjectsBibleBrowser: BibleBrowserBibleMaps: BibleMapsChristianLibrary: ChristianLibraryCLB Podcast Module: DotNetNuke Module used to allow DNN to host one or more podcasts within a portal.Coletivo InVitro: Nova versão do Site do ColetivoCustomer Care Accelerator for Microsoft Dynamics CRM: Customer Care Accelerator for Microsoft Dynamics CRM.EasyTFS: A very lightweight, quick, web-based search application for Team Foundation Server. EasyTfs searches as you type, providing real-time search resul...FSCommunity: abcGeocache Downloader: GeocacheDownloader helps you download geocache information in an organised way, making easier to copy the information to your device. The applicati...Grabouille: Grabouille aims to be an incubation project for Microsoft best patterns & practices and also a container for last .Net technologies. The goal is, i...Klaverjas: Test application for testing different new technologies in .NET (WCF, DataServices, C# stuff, Entity...etc.)Livecity: Social network. Alpha 0.1MarxSupples: testMOSS 2007 - Excel Services: This helps you understand MOSS 2007 - Excel Services and how to use the same in .NETmy site: a personal web siteNazTek.Extension.Clr35: Contains a set of CLR 3.5 extensions and utility APInetDumbster: netDumbster is a .Net Fake SMTP Server clone of the popular Dumbster (http://quintanasoft.com/dumbster/) netDumbster is based on the API of nDumbs...Object-Oriented Optimization Toolbox (OOOT): A library (.dll) of various linear, nonlinear, and stochastic numerical optimization techniques. While some of these are older than 50 years, they ...OMap - Object to Object Mapper: OMap is a simple object to object mapper. It could be used for scenarios like mapping your data from domain objects into data transfer objects.PDF Renderer for BlackBerry.: Render and view PDF files on BlackBerry using a modified version of Sun's PDF Renderer.Pomodoro Tool: Pomodoro Tool is a timer for http://www.pomodorotechnique.com/ . It's a timer and task tracker with a text task editing interface.ReadingPlan: ReadingPlanRil#: .net library to use the public Readitlater.com public APISCSM Incident SLA Management: This project provides an extension to System Center Service Manager to provide more granular control over incident service level agreement (SLA) ma...SEAH - Sistema Especialista de Agravante de Hipertensão: O SEAH tem como propósito alertar o indivíduo em relação ao seu agravante de hipertensão arterial e a órgãos competentes, entidades de ensino, pesq...StudyGuide: StudyGuideTest Project (ignore): This is used to demonstrate CodePlex at meetings. Please ignore this project.YCC: YCC is an open source c compiler which compatible with ANSI standard.The project is currently an origin start.We will work it for finally useable a...New ReleasesAlbum photo de club - Club's Photos Album: App - version 0.5: Modifications : - Ajout des favoris - Ajout de l'update automatique /*/ - Add favorites - Add automatic updateBoxee Launcher: Boxee Launcher 1.0.1.5: Boxee Launcher finds the BOXEE executable using a registry key that BOXEE creates. The new version of BOXEE changed the location. Boxee Launcher ha...CBM-Command: 2010-05-06: Release Notes - 2010-05-06New Features Creating Directories Deleting Files and Directories Renaming Files and Directories Changes 40 columns i...Customer Care Accelerator for Microsoft Dynamics CRM: Customer Care Accelerator for Dynamics CRM R1: The Customer Care Accelerator (CCA) for Microsoft Dynamics CRM focuses on delivering contact center enabling functionality, such as the ability to ...D-AMPS: D-AMPS 0.9.2: Add .bat files for command-line running Bug fixed (core engine) Section 6, 8, 9 modifications Sources (Fortran) for core engineDynamicJson: Release 1.1.0.0: Add - foreach support Add - Dynamic Shortcut of IsDefined,Delete,Deserialize Fix - Deserialize Delete - LengthEasyTFS: EasyTfs 1.0 Beta 1: A very lightweight, quick, web-based search application for Team Foundation Server. EasyTfs searches as you type, providing real-time search resul...Event Scavenger: Add installer for Admin tool: Added installer for Admin tool. Removed exe's for admin and viewer from zip file - were replaced by the msi installers.Expression Blend Samples: PathListBoxUtils for Expression Blend 4 RC: Initial release of the PathListBoxUtils samples.HackingSilverlight Code Browser: HackingSilverlight Code Browser: Out with the old and in with the new... the HackingSilverlight Code Browser is a reference tool for code snippets so that I can not have to remembe...Hammock for REST: Hammock v1.0.3: v1.0.3 ChangesFixes for OAuth escaping and API usage Added FollowRedirects feature to RestClient/RestRequest v1.0.2 Changes.NET 4.0 and Client P...ImmlPad: ImmlPad Beta 1.1.1: Changes in this release: Added more intelligent right-click menu's to allow opening an IMML document with a specific Player version Fixed issue w...LinkedIn® for Windows Mobile: LinkedIn for Windows Mobile v0.8: Improved error message dumping + moved OAuth parameters from www.* to api.* In case of unexpected errors, check "Application Data\LinkedIn for Wind...Live-Exchange Calendar Sync: Installer: Alpha release of Live-Exchange Calendar SyncMAPILab Explorer for SharePoint: MAPILab Explorer for SharePoint ver 2.1.0: 1) Get settings form old versions 2) Rules added to display enumerable object items. 3) Bug fixed with remove persisted object How to install:Do...MapWindow6: MapWindow 6.0 msi May 6, 2010: This release enables output .prj files to also show the ESRI names for the PRJCS, GEOCS, and the DATUM. It also fixes a bug that was preventing th...MOSS 2007 - Excel Services: Calculator using Excel Services: Simple calculator using Excel ServicesMvcMaps - Unified Bing/Google Mapping API for ASP.NET MVC: MvcMaps Preview 1 for ASP.NET 4.0 and VS'2010: There was a change in ASP.NET 4.0 that broke the release, so a small modification needed to be made to the reflection code. This release fixes that...NazTek.Extension.Clr35: NazTek.Extension.Clr35 Binary Cab: Binary cab fileNazTek.Extension.Clr35: NazTek.Extension.Clr35 Source Cab: Source codePDF Renderer for BlackBerry.: PDF Renderer 0.1 for BlackBerry: This library requires a BlackBerry Signing Key in order to compile for use on a BlackBerry device. Signing keys can be obtained at BlackBerry Code ...Pomodoro Tool: PomodoroTool Clickonce installer: PomodoroTool Clickonce installerPOS for .Net Handheld Products Service Object: POS for .Net Handheld Products Service Object 1002: New version (1.0.0.2) which should support 64 bit platforms (see ReadMe.txt included with source for details). Source code only.QuestTracker: QuestTracker 0.4: What's New in QuestTracker 0.4 - - You can now drag and drop the quests on the left pane to rearrange or move quests from one group to another. - D...RDA Collaboration Team Projects: Property Bag Cmdlet: This cmdlet allows to retrieve, insert and update property bag values at farm, web app, site and web scope. The same operations can be in code usi...Ril#: Rilsharp 1.0: The first version of the Ril# (Readitlater sharp) library.Scrum Sprint Monitor: v1.0.0.47911 (.NET 4-TFS 2010): What is new in this release? Migrated to .NET Framework 4 RTM; Compiled against TFS 2010 RTM Client DLLs; Smoother animations with easing funct...SCSM Incident SLA Management: SCSM Incident SLA Management Version 0.1: This is the first release of the SCSM SLA Management solution. It is an 'alpha' release and has only been tested by the developers on the project....StackOverflow Desktop Client in C# and WPF: StackOverflow Client 0.4: Shows a popup that displays all the new questions and allows you to navigate between them. Fixed a bug that showed incorrect views and answers in t...Transcriber: Transcriber V0.1: Pre-release, usable but very rough.VCC: Latest build, v2.1.30506.0: Automatic drop of latest buildVisual Studio CSLA Extension for ADO.NET Entity Framework: CslaExtension Beta1: Requirements Visual Studio 2010 CSLA 4.0. Beta 1 Installation Download VSIX file and double click to install. Open Visual Studio -> Tools -> Exte...Most Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight Toolkitpatterns & practices – Enterprise LibraryWindows Presentation Foundation (WPF)ASP.NETDotNetNuke® Community EditionMicrosoft SQL Server Community & SamplesMost Active Projectspatterns & practices – Enterprise LibraryAJAX Control FrameworkIonics Isapi Rewrite FilterRawrpatterns & practices: Azure Security GuidanceCaliburn: An Application Framework for WPF and SilverlightBlogEngine.NETTweetSharpNB_Store - Free DotNetNuke Ecommerce Catalog ModuleTinyProject

  Read the article

• Optimize SUMMARIZE with ADDCOLUMNS in Dax #ssas #tabular #dax #powerpivot

  - by Marco Russo (SQLBI)

  If you started using DAX as a query language, you might have encountered some performance issues by using SUMMARIZE. The problem is related to the calculation you put in the SUMMARIZE, by adding what are called extension columns, which compute their value within a filter context defined by the rows considered in the group that the SUMMARIZE uses to produce each row in the output. Most of the time, for simple table expressions used in the first parameter of SUMMARIZE, you can optimize performance by removing the extended columns from the SUMMARIZE and adding them by using an ADDCOLUMNS function. In practice, instead of writing SUMMARIZE( <table>, <group_by_column>, <column_name>, <expression> ) you can write: ADDCOLUMNS(     SUMMARIZE( <table>, <group by column> ),     <column_name>, CALCULATE( <expression> ) ) The performance difference might be huge (orders of magnitude) but this optimization might produce a different semantic and in these cases it should not be used. A longer discussion of this topic is included in my Best Practices Using SUMMARIZE and ADDCOLUMNS article on SQLBI, which also include several details about the DAX syntax with extended columns. For example, did you know that you can create an extended column in SUMMARIZE and ADDCOLUMNS with the same name of existing measures? It is *not* a good thing to do, and by reading the article you will discover why. Enjoy DAX!

  Read the article

• Great Blogs About Oracle Solaris 11

  - by Markus Weber

  Now that Oracle Solaris 11 has been released, why not blog about blogs. There is of course a tremendous amount of resource and information available, but valuable insights directly from people actually building the product is priceless. Here's a list of such great blogs. NOTE: If you think we missed some good ones, please let us know in the comments section !  Topic Title Author Top 11 Things My 11 favourite Solaris 11 features Darren Moffat Top 11 Things These are 11 of my favorite things! Mike Gerdts Top 11 Things 11 reason to love Solaris 11     Jim Laurent SysAdmin Resources Solaris 11 Resources for System Administrators Rick Ramsey Overview Oracle Solaris 11: The First Cloud OS Larry Wake Overview What's a "Cloud Operating System"? Harry Foxwell Overview What's New in Oracle Solaris 11 Jeff Victor Try it ! Virtually the fastest way to try Solaris 11 (and Solaris 10 zones) Dave Miner Upgrade Upgrading Solaris 11 Express b151a with support to Solaris 11 Alan Hargreaves IPS The IPS System Repository Tim Foster IPS Building a Solaris 11 repository without network connection Jim Laurent IPS IPS Self-assembly – Part 1: overlays Tim Foster IPS Self assembly – Part 2: multiple packages delivering configuration Tim Foster Security Immutable Zones on Encrypted ZFS Darren Moffat Security User home directory encryption with ZFS Darren Moffat Security Password (PAM) caching for Solaris su - "a la sudo" Darren Moffat Security Completely disabling root logins on Solaris 11 Darren Moffat Security OpenSSL Version in Solaris Darren Moffat Security Exciting Crypto Advances with the T4 processor and Oracle Solaris 11 Valerie Fenwick Performance Critical Threads Optimization Rafael Vanoni Performance SPARC T4-2 Delivers World Record SPECjvm2008 Result with Oracle Solaris 11 BestPerf Blog Performance Recent Benchmarks Using Oracle Solaris 11 BestPerf Blog Predictive Self Healing Introducing SMF Layers Sean Wilcox Predictive Self Healing Oracle Solaris 11 - New Fault Management Features Gavin Maltby Desktop What's new on the Solaris 11 Desktop? Calum Benson Desktop S11 X11: ye olde window system in today's new operating system Alan Coopersmith Desktop Accessible Oracle Solaris 11 - released! Peter Korn

  Read the article

• Overriding GetHashCode in a mutable struct - What NOT to do?

  - by Kyle Baran

  I am using the XNA Framework to make a learning project. It has a Point struct which exposes an X and Y value; for the purpose of optimization, it breaks the rules for proper struct design, since its a mutable struct. As Marc Gravell, John Skeet, and Eric Lippert point out in their respective posts about GetHashCode() (which Point overrides), this is a rather bad thing, since if an object's values change while its contained in a hashmap (ie, LINQ queries), it can become "lost". However, I am making my own Point3D struct, following the design of Point as a guideline. Thus, it too is a mutable struct which overrides GetHashCode(). The only difference is that mine exposes and int for X, Y, and Z values, but is fundamentally the same. The signatures are below: public struct Point3D : IEquatable<Point3D> { public int X; public int Y; public int Z; public static bool operator !=(Point3D a, Point3D b) { } public static bool operator ==(Point3D a, Point3D b) { } public Point3D Zero { get; } public override int GetHashCode() { } public override bool Equals(object obj) { } public bool Equals(Point3D other) { } public override string ToString() { } } I have tried to break my struct in the way they describe, namely by storing it in a List<Point3D>, as well as changing the value via a method using ref, but I did not encounter they behavior they warn about (maybe a pointer might allow me to break it?). Am I being too cautious in my approach, or should I be okay to use it as is?

  Read the article

• June 22-24, 2010 in London City Level 400 SQL Server Performance Monitoring & Tuning Workshop

  - by sqlworkshops

  We are organizing the “3 Day Level 400 SQL Server Performance Monitoring & Tuning Workshop” for the 1st time in London City during June 22-24, 2010.Agenda is located @ www.sqlworkshops.com/workshops & you can register @ www.sqlworkshops.com/ruk. Charges: £ 1800 (5% discount for those who register before 21st May, £ 1710).In this 3 Day Level 400 hands-on workshop, unlike short SQLBits sessions, we go deeper on the tuning topics. Not sure if this will be a good use of your time & money? Watch our webcasts @ www.sqlworkshops.com/webcasts.We are trying to balance these commercial offerings with our free community contributions. Financially: These workshops are essential for us to stay in business!Feedback from Finland workshop posted by Jukka, Wärtsilä Oyj on February 23, 2010 to the LinkedIn SQL Server User Group Finland (more feedbacks @ www.sqlworkshops.com/feedbacks):Just want to start this thread and give some feedback on the Workshop that I attended last week at Microsoft.Three days in a row, deep dive into the query optimization and performance monitoring :-) I must say, that the SQL guru Ramesh has all the tricks up in his sleeves.The workshop was very helpful and what's most important: no slide show marathon: samples after samples explained very clearly and with our own class room SQL servers we can try the same stuff while Ramesh typed his own samples.If the workshop will be rearranged, I can most willingly recommend it to anyone who wants to know what's "under the hood" of SQL Server 2008.Once again, thank you Microsoft and Ramesh to make this happen. May the force be with us all :-)Hope to see you @ the Workshop. Feel free to pass on this information to your SQL Server colleagues.-ramesh-www.sqlbits.com/speakers/r_meyyappan/default.aspx

  Read the article

• La pianificazione finanziaria fra le opere di Peggy Guggenheim

  - by user812481

  Lo scorso 22 giugno nella fantastica cornice del Palazzo Venier dei Leoni a Venezia si è tenuto il CFO Executive meeting & event sul Cash flow planning &Optimization. L’evento iniziato con un networking lunch ha permesso agli ospiti di godere della fantastica vista della terrazza panoramica del palazzo che affaccia su Canal Grande. Durante i lavori, Oracle e Reply Consulting, partner dell’evento, hanno parlato della strategia di corporate finance e del valore della pianificazione economico-finanziaria- patrimoniale integrata. Grazie alla partecipazione di Banca IMI si sono potuti approfondire i temi del Business Plan, Sensitivity Analysis e Covenant Test nelle operazioni di Finanza Strutturata. AITI (Associazione Italiana Tesorieri d’Impresa) ha concluso i lavori dando una visione a 360° della pianificazione finanziaria, spiegando il percorso strategico necessario per i flussi di capitale a sostegno del business. Ecco l’elenco degli interventi: Il valore della pianificazione economico-finanziaria-patrimoniale integrata per il CFO nei processi di corporate governance - Lorenzo Mariani, Partner - Reply Consulting Business Plan, Sensitivity Analysis e Covenant Test nelle operazioni di Finanza Strutturata: applicazioni nelle fasi di concessione del credito e di monitoraggio dei rischi - Gianluca Vittucci, Responsabile Finanza Strutturata Banca dei Territori - Banca IMI Dalla strategia di corporate finance al planning operativo: una visione completa ed integrata del processo di pianificazione economico-finanziario-patrimoniale - Edilio Rossi, EPM Business Development Manager, Italy - Oracle EMEA Pianificazione Finanziaria: percorso strategico per ottimizzare i flussi di capitale allo sviluppo del business Aziendale; processo base nelle relazioni con il sistema bancario - Giovanni Ceci, Consigliere AITI e Temporary Finance Manager - Associazione Italiana Tesorieri d’Impresa Per visualizzare tutte le presentazioni seguici su slideshare.  Per visualizzare tutte le foto della giornata clicca qui.

  Read the article

• Microsoft SQL Server 2012 Analysis Services – The BISM Tabular Model #ssas #tabular #bism

  - by Marco Russo (SQLBI)

  I, Alberto and Chris spent many months (many nights, holidays and also working days of the last months) writing the book we would have liked to read when we started working with Analysis Services Tabular. A book that explains how to use Tabular, how to model data with Tabular, how Tabular internally works and how to optimize a Tabular model. All those things you need to start on a real project in order to make an happy customer. You know, we’re all consultants after all, so customer satisfaction is really important to be paid for our job! Now the book writing is finished, we’re in the final stage of editing and reviews and we look forward to get our print copy. Its title is very long: Microsoft SQL Server 2012 Analysis Services – The BISM Tabular Model. But the important thing is that you can already (pre)order it. This is the list of chapters: 01. BISM Architecture 02. Guided Tour on Tabular 03. Loading Data Inside Tabular 04. DAX Basics 05. Understanding Evaluation Contexts 06. Querying Tabular 07. DAX Advanced 08. Understanding Time Intelligence in DAX 09. Vertipaq Engine 10. Using Tabular Hierarchies 11. Data modeling in Tabular 12. Using Advanced Tabular Relationships 13. Tabular Presentation Layer 14. Tabular and PowerPivot for Excel 15. Tabular Security 16. Interfacing with Tabular 17. Tabular Deployment 18. Optimization and Monitoring And this is the book cover – have a good read!

  Read the article

• links for 2010-05-19

  - by Bob Rhubart

  Presentations from #otnarchday in Dallas now available on Slideshare Includes presentations on IT Optimization, Application Integration Architecture, Application Grid, and Infrastructure Consolidation. More to come. Anthony Shorten: JMX Based Monitoring - Part Four - Business App Server Monitoring Anthony Shorten discuss a new Oracle Utilities Application Framework V4 feature that allows JMX to be used for management and monitoring the Oracle Utilities business application server component. (tags: oracle otn java architect) New book: Oracle Coherence 3.5 An overview of the new book by authors Aleksandar Seovic, Mark Falco, Patrick Peralta. (tags: oracle otn grid architect) Douwe Pieter van den Bos: Next step in Virtualization: VirtualBox 3.2 "For businesses, VirtualBox just might be the answer they where looking for," says Douwe Pieter van den Bos. "A simple and widely supported virtual machine." (tags: oracle otn virtualization architect) Maurice Gamanho: Python and Ruby in Tuxedo Maurice Gamanho's quick overview of new features in Oracle's Service Architecture Leveraging Tuxedo (SALT) 11gR1. (tags: oracle otn soa architect) Live Webcast: Oracle and AmberPoint - May 20, 2010 - 10 a.m. PT/1 p.m. ET Ed Horst and Ashish Mohindroo discuss the advantages of the Oracle and AmberPoint combination. (tags: oracle otn architect soa governance)

  Read the article

• xVelocity engines compared: VertiPaq vs ColumnStore #ssas #vertipaq #xvelocity #sql #tabular

  - by Marco Russo (SQLBI)

  During the last months I and Alberto worked in several projects using Analysis Services Tabular and we had to face real world issues, such as complex queries, large data volume, frequent data updates and so on. Sometime we faced the challenge of comparing Tabular performance with SQL Server. It seemed a non-sense, because even if the same core xVelocity technology is implemented in both products (SQL Server 2012 uses ColumnStore indexes, whereas Analysis Services 2012 uses VertiPaq), we initially assumed that the better optimization for the in-memory engine used by Analysis Services would have been always better than SQL Server. However, we discovered several important things: Processing time might be different and having data on SQL Server could make ColumnStore way faster for processing. Partitioning in SQL Server might be much more effective for query performance than Analysis Services. A single query can scale easily on more processor on SQL Server, whereas in Analysis Services the formula engine is single-threaded and could be a bottleneck for certain queries. In case of a large workload with many concurrent users, storage engine cache in Analysis Services could be a big advantage over SQL Server, especially for scalability As you can see, these considerations are not always obvious and you might be tempted to make other assumptions based on these information. Well, don’t do that. Before anything else, read the whitepaper VertiPaq vs ColumnStore Comparison written by Alberto Ferrari. Then, measure your workload. Finally, make some conclusion. But don’t make too many assumptions. You might be wrong, as we did at the beginning of this journey.

  Read the article

< Previous Page | 251 252 253 254 255 256 257 258 259 260 261 262  | Next Page >