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• No Significant Fragmentation? Look Closer…

  If you are relying on using 'best-practice' percentage-based thresholds when you are creating an index maintenance plan for a SQL Server that checks the fragmentation in your pages, you may miss occasional 'edge' conditions on larger tables that will cause severe degradation in performance. It is worth being aware of patterns of data access in particular tables when judging the best threshold figure to use.

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• Database Deployment Cribsheet

  As part of Simple-Talk's long-running Cribsheet series, they asked William Brewer to write a guide to deployment that described in general terms what is involved in the deployment of a database application, and the sort of issues you're likely to come up against. Top 5 hard-earned lessons of a DBAIn part one, read about ‘The Case of the Missing Index’ and learn from the experience of The DBA Team. Read now.

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• A Few Useful Coding Tips For PHP - MySQL Hosting

  Due to the simplicity and effectiveness of PHP and the functionalities of MySQL, PHP-MySQL hosting solution becomes the favorite choice for many website developers. However, many PHP programmers, mostly the inexperienced website developers may face different kinds of problem because they are lack of understanding about some tips and tricks to improve their PHP hosting performance. Going through the contents of this article will help you learn the top five most useful tips for your website development.

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• Hot Off the Presses! Get Your Early Release of the December Procurement Newsletter!

  - by MargaretW

  Get all the recent news and featured topics for the Procurement modules including Purchasing, iProcurement, Sourcing and iSupplier. Find out what Procurement experts are recommending to prevent and resolve issues.  Webcast information and important links are also included.  The December newsletter features articles on: Ø Maximizing your search results to include the Procurement Community Ø Concurrent Processing Analyzer Ø Preventing FRM-40654 errors And there is much, much more….. Access the newsletter now:  DocID: 111111.1

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• Cortus - Is this the smallest ever CPU core running Linux?

  <b>Electropages:</b> "Availability of uCLinux for the APS3 family of processors has been announced by Cortus. This version of Linux is ideally suited to low-power, high-performance, embedded systems."

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• Research topics for starting and optimizing a high-traffic website

  - by user745434

  I bury a good deal of my ideas for fear that I don't know enough about scaling web applications and high-traffic websites. That said, I'd like to know of any general topics to research in order to ensure that your web app doesn't break / slow down when you start getting to Twitter-level traffic. I'm looking for research topics with, preferably, additional resources. For example: Make sure you optimize SQL queries (see High Performance MySQL Optimization)

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• btrfs and missing free space

  - by easteregg

  I converted my ext4 partition to btrfs and deleted the save subvolume after doing so. Then I enabled the compression (lzo) of the filessystem in the fstab file and everything is correct so far. Then I forced the compression of all files using the defragmentation command with the parameter -c that the new compression is applied to all files. While doing so, I noticed that my ssd got completly filled up - before I had 6gigs of free space. No I got nothing left. easteregg@x201s:~$ btrfs fi df / Data: total=50.00GB, used=49.17GB System: total=32.00MB, used=4.00KB Metadata: total=24.50GB, used=9.86GB and easteregg@x201s:~$ df -ha Filesystem Size Used Avail Use% Mounted on /dev/sda1 75G 60G 852M 99% / So now. How can I regain my free space. I expected to gain more space because of the lzo compression. And now! The fs is correctly mounted. easteregg@x201s:~$ mount /dev/sda1 on / type btrfs (rw,noatime,ssd,compress=lzo) Any ideas how to fix this issue?

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• communication network applications in Ubuntu 12.04

  - by soporte.cs

  I have installed edubuntu on 2 computers that are networked. I installed an educational software to keep track of the teams (one student and one teacher) but the teacher software is not any student team, as I have indicated in the product support should be enabled for proper telnet performance but despite being able to telnet between computers not get it to work. I wonder which options should be active in ubuntu for this type of software to operate smoothly. Thank you.

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• Sudo apt-get update problem 12.04

  - by user288291

  Please Guys help me to fix this issues with update my Ubuntu 12.04 desktop: Get:38 http://us.archive.ubuntu.com precise/universe Translation-en [3,341 kB] Fetched 24.5 MB in 7min 9s (57.1 kB/s) W: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/precise/main/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/extras.ubuntu.com_ubuntu_dists_precise_main_i18n_Index E: Some index files failed to download. They have been ignored, or old ones used instead.

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• Reading/resources for improving architect and senior engineer skills

  - by laconicdev

  I am working on improving my architect / senior engineer skills. In particular, I want to focus on "getting lost in the weeds" - spending a lot of time on a problem while a better solution could have been achieved and "not seeing the forest for the trees" - missing the big picture and only providing part of the functionality - issues. What is some recommended reading/source material that can help me along? Thanks!

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• Free eBook: Troubleshooting SQL Server: A Guide for the Accidental DBA

  Three SQL Server MVPs (Jonathan Kehayias, Ted Krueger and Gail Shaw) provide fascinating insight into the most common SQL Server problems, why they occur, and how they can be diagnosed using tools such as Performance Monitor, Dynamic Management Views and server-side tracing. The focus is on practical solutions for removing root causes of these problems, rather than "papering over the cracks".

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• How to profile a Perl + FastCGi + StarRunner web program?

  - by Paul Tomblin

  I've written an extension to RequestTracker for a client, but he says the performance isn't good enough. I'd like to do some profiling, but I'm not sure how to connect up a profiler (say NYTProf, for example)? I tried what the man page says and put PerlModule Devel::NYTProf::Apache in my apache config, but all I get in the results are Apache2:XSLoader, Devel::NYTProf::Apache and ModPerl::Util modules in the results, and neither my own nor RT's modules.

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• IPAD: What About it?

  IPAD is the end of the world and the hype is fading from the news stream. It sells well, but it is overshadowed by the iPhone? Is it too expensive? As some may consider such issues, and they think it... [Author: Thomas Traint - Computers and Internet - May 04, 2010]

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• Manipulating XML Data in SQL Server

  When the average database developer is obliged to manipulate XML, either shredding it into relational format, or creating it from SQL, it is often done 'at arms length'. A shame, since effective use of techniques that go beyond the basics can save much code, "It really helped us isolate where we were experiencing a bottleneck"- John Q Martin, SQL Server DBA. Get started with SQL Monitor today to solve tricky performance problems - download a free trial

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• NHibernate Portugal Mailing List

  - by Ricardo Peres

  I just created a mailing list for the discussion of NHibernate-related issues in portuguese: NHibernate Portugal. Feel free to join and share your experiences and knowledge!

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• Problem with bluetooth in Ubuntu 12.10

  - by Adipta Datta

  I am a new user of Ubuntu and I am really fascinated by its performance. Coming to the question, I am facing some problems with the bluetooth connection. When I connect my mobile with the computer through bluetooth, and then click on 'Browse Device', the phone folder opens, but after 1 second, the folder gets closed by itself. But I am able to connect the internet through my phone. Can anyone help me?

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• Planning for Recovery

  Uncertainty sets the tone of business planning these days and past precedents, 'rules of thumb' and trading history provide little comfort when assessing future prospects. After 18 years of constant growth in GDP, planning is no longer about extrapolating past performance and adjusting for growth. It is now about constantly testing the temperature of the water, formulating scenarios, assessing risk and assigning probabilities. So how does one plan for recovery and improve forecast accuracy in such a volatile environment?

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• Stairway to T-SQL DML Level 12: Using the MERGE Statement

  The final level of this stairway looks at the MERGE statement in detail, focusing on how to perform insert, update and delete logic using the MERGE statement. An accidental DBA? Try SQL MonitorUse the 30-day full product free trial to get easy-to-understand insights into SQL Server, and get suggestions on how to solve the type of issues that are uncovered. Begin your free trial.

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• Tune your Linux kernel with sysctl

  <b>Ghacks:</b> "Today most kernels work out of the box with most hardware. But there are times when you could squeeze out a bit more performance or even lighten your kernel on the fly. You can do that with the sysctl command."

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• Designing & Maintaining SQL Server Transactional Replication Environments

  Microsoft IT protects against unplanned Transactional Replication outages and issues by using best practices and proactive monitoring. This results in increased stability, simplified management and improved performance of transactional replication environments. New! SQL Backup Pro 7.2 - easy, automated backup and restoresTry out the latest features and get faster, smaller, verified backups. Download a free trial.

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• Configuring Database Mirroring

  This article contains a set of instructions for configuring SQL Server mirroring, including pre-requisites. It also includes notes on how to resolve a few issues that I have encountered. Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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• Cross-Cultural Design (great video from HFI) - #usableapps #UX #L10n

  - by ultan o'broin

  Great video from HFI Animate, featuring user-centered design for emerging markets called Cross Cultural Design: Getting It Right the First Time. Cross Cultural Design: Getting It Right the First Time Apala Lahiri Chavan talks about the issues involved in designing solutions for Africa, India, China and more markets! Design for the local customer's ecosystem - and their feelings! Timely reminder of the important of global and local research in UX!

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• Isometric Collision Detection

  - by Sleepy Rhino

  I am having some issues with trying to detect collision of two isometric tile. I have tried plotting the lines between each point on the tile and then checking for line intercepts however that didn't work (probably due to incorrect formula) After looking into this for awhile today I believe I am thinking to much into it and there must be a easier way. I am not looking for code just some advise on the best way to achieve detection of overlap

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• An innovative architect to develop business web forms (3) - Configure GridView

  This is third article in the series to introduce an innovative architecture to develop web forms in enterprise software which is high performance, productivity, configurability and maintainability than writing ASPX/MVC code directly. The article introduces how to configure gridview for search result

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• x86 Server Standardization Does Not Equate to OS Pluralization

  <b>Serverwatch:</b> "At this rate, it will not be long before you have no choice at all, and when alternatives disappear that offer something different -- lower cost, higher performance, better reliability -- it's bound to be bad news."

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