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  • Rendering only a part of the screen in high detail

    - by Bart van Heukelom
    If graphics are rendered for a large viewing angle (e.g. a very large TV or a VR headset), the viewer can't actually focus on the entire image, just a part of it. (Actually, this is the case for regular sized screens as well.) Combined with a way to track the viewer's eyes, you could theoretically exploit this and render the graphics away from the viewer's focus with progressively less details and resolution, gaining performance, without losing perceived quality. Are there any techniques for this available or under development today?

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  • G5 quad core will not boot from Ubuntu CD

    - by Steve Howard
    I have a PPC G5 Quad Core with Leopard on one hard drive and I want to install Ubuntu on a second hard drive. The second drive is installed and formatted as a Mac OS Extended (Journaled) drive. I have had no success booting from a CD or DVD with various PPC versions of Ubuntu using any of the suggested keys such as "C, Option, or anything else. Booting into open firmware doesn't work as the system can't find the \install\yaboot file. I am using various CD's burned as iso disk images, but none will boot. I have reset the PRAM, etc, to no avail. Beginning to get very frustrated. Can someone shed some light and provide me with a command line in open firmware that will work, or else direct me to a confirmed PPC bootable version of Ubuntu please? I'd appreciate any help you can provide....

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  • Swap File, Mount point, GRUB2

    - by Mike Green
    Windows 7 with 1gb RAM Hi. I am installing Ubuntu 12 onto a 20gb ext3 partition. I have 100gb free disk space. The install asked me to choose a swap space. Do I have to allocate another partition for the swap space, and if so, what size should it be? I installed without allocating a swap space. Can I allocate a swap space after the install? The install asked me for a mount point. I chose /. Is this okay? I also want to ensure that GRUB2 will be installed within the UBUNTU partition. Is there an option for this on the install? (I will use EasyBCD to select Windows7 or UBUNTU.) Thanks for your help, M...

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  • Partner Webcast – Oracle Coherence Applications on WebLogic 12c Grid - 21st Nov 2013

    - by Roxana Babiciu
    Oracle Coherence is the industry leading in-memory data grid solution that enables organizations to predictably scale mission-critical applications by providing fast access to frequently used data. As data volumes and customer expectations increase, driven by the “internet of things”, social, mobile, cloud and always-connected devices, so does the need to handle more data in real-time, offload over-burdened shared data services and provide availability guarantees.The latest release of Oracle Coherence 12c comes with great improvements in ease of use, integration and RASP (Reliability, Availability, Scalability, and Performance) areas. In addition it features an innovating approach to build and deploy Coherence Application as an integral part of typical JEE Enterprise Application.Read more here

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  • Grpahic hardwares

    - by Vanangamudi
    Which vendor provides better GPGPU. my requirements are confined to rendering utilising the GPU for BSDF building for e.g. Intel started providing Ivy Bridge chipset GPU, which are comparably fast to HD5960 cards. I'm not that against nvidia or amd. but I'm a fan of Intel. how it compares to nvidia in price and performance. if possible may I know, how all of them perform with OpenCL?? I'm not sure if it is right to ask it here. but I don't know where to ask.

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  • HELP: I Broke Ubuntu By Uninstalling Compiz

    - by tSquirrel
    I'm still getting used to Linux, having come from Windows. I was receiving an error that "compiz" had crashed a few times so I figured I'd uninstall it. sudo apt-get remove compiz sudo apt-get install compiz I logged out then back in, after that, the GUI was totally gone and I have no idea how to get it back or what I need to do to restore the GUI to what it was before I killed poor Compiz. GUI was pretty much unmodified after a fresh install of 14.04 How can I fix it? I'm not even sure how to get to a terminal or anything. The login screen looks normal, but after logging in, it's a totally bare desktop with my backround and a few icons. No Dash, toolbar, etc. Hot Keys don't seem to work either (Super = Dash doesn't work, etc); although I did accidently open "Disk" UI. Not sure how. Please Help! Right now I'm working off my W7 dualboot.

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  • You Can Deliver an Engaging Online Experience Across All Phases of the Customer Journey

    - by Christie Flanagan
    Engage. Empower. Optimize. Today’s customers have higher expectations and more choices than ever before.  To succeed in this environment, organizations must deliver an engaging online experience that is personalized, interactive and consistent across all phases of the customer journey. This requires a new approach that connects and optimizes all customer touch points as they research, select and transact with your brand.  Oracle WebCenter Sites combines with other customer experience applications such as Oracle ATG Commerce, Oracle Endeca, Oracle Real-Time Decisions and Siebel CRM to deliver a connected customer experience across your websites and campaigns. Attend this Webcast to learn how Oracle WebCenter: Works with Oracle ATG Commerce and Oracle Endeca to deliver consistent and engaging browsing, shopping and search experiences across all of your customer facing websites Enables you to optimize the performance of your online initiatives through integration with Oracle Real-Time Decisions for automated targeting and segmentation Connects with Siebel CRM to maintain a single view of the customer and integrate campaigns across channels Register now for the Webcast.

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  • More problems in one

    - by Susie
    Yesterday I installed Ubuntu 12.04 because of some previous problems. I had to recover files through Photorec. But it filled my whole disk overnight and didn't even finish. When I turn on my notebook, there's an error The system is runnning in low-graphics mode (don't know if it's somehow connected with it). I need to delete those recup_dir folders, but also I need to finish recovering and get through the error. So I'm absolutely desperate. I hope that I writed it ok. Thanks in advance.

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  • grub2 update-grub puts wrong UUID in grub.cfg for system with separate /, /boot and /home partitions

    - by keepitsimpleengineer
    It is putting in the UUID for the boot partition and not the / (root) partition. It's grub2 (1.99-21ubuntu3.1) on Xubuntu 12.04. UPDATE: ? I ran Boot Info Script 0.60, here are results? The boot info script is too big for askubuntu, but is here. The system not booting is on /dev/sdh. The booted disk, Xubuntu 12.04, is /dev/sdb. /sdh2/etc/fstab is at line 1073. The incorrect UUIDs are at line 945 and 954. "blkid" putput is at line 318. It is putting the UUID for "boot" versus "root" in boot.cfg, line 937. I have noticed that the relationship between physical drives and names in /dev vary depending on which system is booted.

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  • 2012&ndash;The End Of The World Review

    - by Tim Murphy
    The end of the world must be coming.  Not because the Mayan calendar says so, but because Microsoft is innovating more than Apple.  It has been a crazy year, with pundits declaring not that the end of the world is coming, but that the end of Microsoft is coming.  Let’s take a look at what 2012 has brought us. The beginning of year is a blur.  I managed to get to TechEd in June which was the first time that I got to take a deep dive into Windows 8 and many other things that had been announced in 2011.  The promise I saw in these products was really encouraging.  The thought of being able to run Windows 8 from a thumb drive or have Hyper-V native to the OS told me that at least for developers good things were coming. I finally got my feet wet with Windows 8 with the developer preview just prior to the RTM.  While the initial experience was a bit of a culture shock I quickly grew to love it.  The media still seems to hold little love for the “reimagined” platform, but I think that once people spend some time with it they will enjoy the experience and what the FUD mongers say will fade into the background.  With the launch of the OS we finally got a look at the Surface.  I think this is a bold entry into the tablet market.  While I wish it was a little more affordable I am already starting to see them in the wild being used by non-techies. I was waiting for Windows Phone 8 at least as much as Windows 8, probably more.  The new hardware, better marketing and new OS features I think are going to finally push us to the point of having a real presence in the smartphone market.  I am seeing a number of iPhone users picking up a Nokia Lumia 920 and getting rid of their brand new iPhone 5.  The only real debacle that I saw around the launch was when they held back the SDK from general developers. Shortly after the launch events came Build 2012.  I was extremely disappointed that I didn’t make it to this year’s Build.  Even if they weren’t handing out Surface and Lumia devices I think the atmosphere and content were something that really needed to be experience in person.  Hopefully there will be a Build next year and it’s schedule will be announced soon.  As you would expect Windows 8 and Windows Phone 8 development were the mainstay of the conference, but improvements in Azure also played a key role.  This movement of services to the cloud will continue and we need to understand where it best fits into the solutions we build. Lower on the radar this year were Office 2013, SQL Server 2012, and Windows Server 2012.  Their glory stolen by the consumer OS and hardware announcements, these new releases are no less important.  Companies will see significant improvements in performance and capabilities if they upgrade.  At TechEd they had shown some of the new features of Windows Server 2012 around hardware integration and Hyper-V performance which absolutely blew me away.  It is our job to bring these important improvements to our company’s attention so that they can be leveraged. Personally, the consulting business in 2012 was the busiest it has been in a long time.  More companies were ready to attack new projects after several years of putting them on the back burner.  I also worked to bring back momentum to the Chicago Information Technology Architects Group.  Both the community and clients are excited about the new technologies that have come out in 2012 and now it is time to deliver. What does 2013 have in store.  I don’t see it be quite as exciting as 2012.  Microsoft will be releasing the Surface Pro in January and it seems that we will see more frequent OS update for Windows.  There are rumors that we may see a Surface phone in 2013.  It has also been announced that there will finally be a rework of the XBox next fall.  The new year will also be a time for us in the development community to take advantage of these new tools and devices.  After all, it is what we build on top of these platforms that will attract more consumers and corporations to using them. Just as I am 99.999% sure that the world is not going to end this year, I am also sure that Microsoft will move on and that most of this negative backlash from the media is actually fear and jealousy.  In the end I think we have a promising year ahead of us. del.icio.us Tags: Microsoft,Pundits,Mayans,Windows 8,Windows Phone 8,Surface

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  • Database Insider - June 2014 issue now available

    - by Javier Puerta
    The June issue of the Database Insider newsletter is now available. (Full newsletter here) NEWS June 10: Oracle CEO Larry Ellison Live on the Future of Database Performance At a live webcast on June 10 at Oracle’s headquarters, Oracle CEO Larry Ellison is expected to announce the upcoming availability of Oracle Database In-Memory, which dramatically accelerates business decision-making by processing analytical queries in memory without requiring any changes to existing applications.Read More New Study Confirms Capital Expenditure Savings with Oracle Multitenant A new study finds that Oracle Multitenant, an option of Oracle Database 12c, drives significant savings in capital expenditures by enabling the consolidation of a large number of databases on the same number or fewer hardware resources.  Read More Read full newsletter here

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  • Announcement: Oracle SuperCluster T5-8

    - by uwes
    Oracle's Fastest Engineered System On 27th of June we are announcing Oracle SuperCluster T5-8, Oracle’s fastest engineered system. Combining powerful virtualization and unique Exadata and Exalogic optimizations, SuperCluster is optimized to run both database and enterprise applications, and is ideal for consolidation and private cloud. SuperCluster is a complete system integrating SPARC T5-8 servers, Exadata Storage Servers, ZFS Storage Appliance, InfiniBand network and software, delivering extreme performance, no single point of failure, and highest efficiency while reducing risks and costs. Leverage Oracle SuperCluster T5-8 for IBM and HP competitive displacements, upgrading existing data centers, or new customer deployments. Please read the Product Bulletin on Oracle HW TRC for more details. (If you are not registered on Oracle HW TRC, click here ... and follow the instructions..) For More Information Go To: Oracle SuperCluster T5-8 oracle.com OTN

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  • Good message board for a website (e.g. phpBB)

    - by unixman83
    Hi, What are the best (and most widely used) Linux-based message board softwares, and the pros and cons of each. e.g. Security Vulnerabilities, Performance on a cheap server, comes pre-packaged [RPM or DEB]. I am looking for the best message board software for my website. A VPS can run almost any software, so the sky is the limit! Free, doesn't require unreasonable number of hyperlinks to their website Security focused / Widely Used, vulnerabilities are found and fixed quick Easy to keep up-to-date, i.e. prepackaged / auto-update in some way Moderator features [like pinning / message preamble], account management Themeable, customize appearance a bit

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  • Ubuntu 11.04 windows XP dual boot problem

    - by Bernie
    I have installed Ubuntu 11.04 direct from installation disk in a separate partition alongside an existing Windows XP installation. Ubuntu operates fine. I can see the old XP file system and the other network computer and access the internet. The problem is when the computer starts I get the boot selection list for Ubuntu or XP; but I am not allowed to select Windows XP (I cannot scroll down the list with tab or arrows keys). This would be fine for me but the computer is used by other people who are only familiar with windows XP at the moment. I have downloaded and run Boot Repair. Below is the link to the resulting data. http://paste.ubuntu.com/1082944/ I hope you can help solve this problem. I look forward to hearing from you. Kind Regards Bernie.

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  • SAP ouvre sa plateforme In Memory aux Startups et organise une série d'événements pour construire un écosystème autour d'HANA

    SAP ouvre sa plateforme In Memory aux Startups et organise une série d'événements pour construire un écosystème fiable autour d'HANA SAP organise une série d'événements pour aider les développeurs et startups qui utilisent la plateforme In Memory HANA à tirer parti de celle-ci. SAP HANA (High-Performance Analytic Appliance) permet de produire des environnements de Data Warehouse dopés, qui fournissent des données clients en temps réel. Elle permet également d'animer un réseau en ligne et offre une plateforme ouverte aux développeurs. La société souhaite qu'un écosystème fiable soit construit autour de sa plateforme grâce à son programme de soutien aux startups du monde en...

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  • Problems after installing Ubuntu LiveUSB on my 2nd HD

    - by user113106
    I decided to create a Ubuntu USB installer using the Universal USB Installer, selecting a Ubuntu 12.10 ISO. I selected my D: drive, my NON-windows7 carrying drive as install. After this I Re-booted my system and my PC began to Run the Ubuntu Boot-startscreen every time I power up the machine, giving errors like this: Root=Unknown I used my girlfriend's laptop to create, on the exact same way, a real! USB Ubuntu installer. Booting from that USB, picking the option Run Ubuntu from this USB I get the following error: http://postimage.org/image/63qkv98c1/ Let's try installing it from that USB to a Hard-Disk: http://postimage.org/image/usqbwymfx/ As I said: I do not have the Option to pick my Boot-section, at this very moment I can only access to the Ubuntu installation and nothing else. I've read about 90% of other Questions that could've been related, but I could not find a solution. BTW I'm running a Acer Aspire 2Quadcore 4gb DDR 2 Ati Radeon HD, 64bit and I've set my Bios OS-usage from Windows to "Others"

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  • Getting Started Quickly

    - by Owen Allen
    If you're interested in using Ops Center, you'll want to get up and running as quickly and effectively as possible. One way to do this would be to work your way through the documentation library - use the Linux or Oracle Solaris install guides, then go through the Feature Guide and Admin Guide to start using the software. They're thorough, but they're a lot of reading. But if you're looking to install a simple deployment quickly, and you don't want to do all of the configuration work right off the bat, you can use the Quick Start Guide. It's a streamlined procedure that runs you through installing a single Enterprise Controller and co-located Proxy Controller, and then shows you how to discover assets quickly. Once you've discovered these assets, it describes how to use the analytics feature to view their performance, and use monitoring to keep track of their statuses and health. You'll have to do some additional configuration to use features like OS provisioning, OS updates, and virtualization, but the Quick Start guide gives you an overview of how to install and start using features quickly.

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  • Why is not there a python compiler to native machine's code?

    - by user2986898
    As I understand, the cause of the speed difference between compiled languages and python is, that the first compiles code all way to the native machine's code, whereas python compiles to python bytecode, to be interpreted by the PVM. I see that this way python codes can be used on multiple operation system (at least in most cases), however I do not understand, why is not there an additional (and optional) compiler for python, which compiles the same way as traditional compilers. This would leave to the programmer to chose, which is more important to them; multiplatform executability or performance on native machine. In general; why are not there any languages which could be behave both as compiled and interpreted?

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  • Coherence on Exalogic: 6x Speeds on Half the Hardware is Possible

    - by jeckels
    Recently, Oracle Coherence released its 12c version, focused on scalability and real-time data delivery. As part of the launch, we showcased Coherence's tight coupling with Exalogic Elastic Cloud. By leveraging the Inifiniband Fabric in Exalogic, Coherence can now operate at up to 6x the speed on as little as half the hardware on an Exalogic box. This breakthrough is helping customers save money on their hardware costs while improving performance of their data grid. Here's a free resource available for you to explore this technology relationship further.For even more information on Coherence, attend our upcoming free virtual developer day on November 5th to see how developers can leverage Coherence in their everyday tasks.

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  • Fresh install of 12.04 Kernel panic

    - by user70260
    I am attempting to install Ubuntu 12.04 on my computer. After the Ubuntu splash screen, the computer throws up this error: sr 2:0:1:0: [sr0] Unhandled error code Kernel panic - not syncing: Attempted to kill init! PID: 1, comm: run-init Not Tainted 3.2.0-23-generic #36-Ubuntu The computer hardware is as follows: Core 2 quad 9400, 8gb RAM, GTX 275, 3 Mech HD, 2 SSD, Win 7 install. I would like to dual boot Ubuntu on this computer if possible. I did try placing this disk in my laptop and booted successfully which leads me to believe the fault lies with the desktop. Under windows all hardware seems to work ok. Any ideas?

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  • Speaking in Omaha: December 7, 2011

    - by Bill Graziano
    I’m presenting in Omaha on Writing Faster SQL at 6PM on December 7th.  You can find meeting details on the Omaha SQL Server User Group page. The meeting location requires an RSVP so building security has a list of attendees. The presentation is a series of suggestions on improving performance.  It ranges from simple things like comparing indexed columns to scalar values up to tips for reducing query compiles and asynchronous processing patterns.  Nearly all of these come from specific issues I’ve encountered working on poorly performing SQL Servers.

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  • /etc/crypttab not working

    - by Jeremy Stein
    I used the Disk Utility to create an encrypted volume on an external drive. When I click the Unlock Volume button in that program, it mounts the drive for me. Now, I want to automate this process so that it will happen at boot-up. When I run sudo cryptsetup luksUUID /dev/sdb1, I get this: ca709269-1e3e-4e9e-9e08-7248f0e6c5a6 So, I create /etc/crypttab like this: backup_drive UUID=ca709269-1e3e-4e9e-9e08-7248f0e6c5a6 none And I added this line to /etc/fstab: /dev/mapper/backup_drive /mnt/backup ext3 default 0 2 When I reboot, Ubuntu tells me that the device is not available to map, so I tell it to skip it. It appears that the /etc/crypttab is not getting run correctly. How can I debug this?

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  • How can I support scrolling when using batched rendering for my tiles?

    - by dardanel
    I have tiled map 100*75 and tiles are 32*32 pixel.I want to use batching for performance .I don't figure it out , because of my game needs scrolling and every frame i draw 22*16 tiles (my screen is 20*16 tile) .I thought that batching tiles for every frame .Is it good or any suggestion? edit :to more clarify I want to use occlusion culling and batching at the same time.I thought that drawing only visible areas and batching them together .But there is a something i couldn't figure out .When scrolling screen with translate matrix , if one row become invisible , I bind new row and batch them again.Every batched objects needs to buffer again.So I batch tiles and buffer to VBO every time when one row become invisible .I don't know these way is efficient or not .This is my question .And i am open to any suggestions.

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  • Google I/O 2012 - How we Make JavaScript Widgets Scream

    Google I/O 2012 - How we Make JavaScript Widgets Scream Malte Ubl, John Hjelmstad When loading websites every millisecond counts. Social widgets should enhance a website experience and they should definitely not slow it down. We'll walk through the unique challenges of loading social widgets such as the +1 button and how we made sure that they load as fast as possible -- yes, there will be war stories! While we'll focus on widget performance, many of the techniques we used have wider applicability and we'll show how they can make your website faster, too. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 734 3 ratings Time: 51:44 More in Science & Technology

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  • query in codeIgniter style

    - by troy
    I have below query: SET @sql = NULL ; SELECT GROUP_CONCAT( DISTINCT CONCAT( 'select latitude,longitude,max(serverTime) as serverTime,', deviceID, ' AS device from d', deviceID, '_gps' ) SEPARATOR ' UNION ALL ' ) INTO @sql FROM devices WHERE accountID =2; PREPARE stmt FROM @sql ; EXECUTE stmt; Can someone help me to write the above query in codeIgniter style.... ANd another thing is :What is the difference between writing the query in 1 and 2 formats 1. $query = $this->db->query('YOUR QUERY HERE'); 2. $this->db->select("..."); $this->db->from(); $this->db->where(); Will it have any effect on performance if we use 2nd style... Thank You

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