| Title | Date Added | Company | |
|---|---|---|---|
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Using Intel Thread Profiler for Win32 Threads: Philosophy and Theory | 2008-05-02 | Intel |
| In the past, software profiling tools have concentrated on measuring the execution time of functions and procedures within applications. For serial applications this was useful information that guided the programmer to those parts of the code that could most benefit from optimization or threading. For applications that have already been threaded, this type of information often has little value. Information that relates directly to performance issues from threaded and parallel execution is of much more use. This is the first paper in a two-part series that explains what Intel Thread Profiler for Win32 Threads does and how to use it effectively on one's own explicitly threaded applications.
Tags: High Performance Computing |
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Black Belt Itanium Processor Performance: The Foundation (Part 1 of 5) | 2008-04-30 | Intel |
| Many optimizations will automatically be enabled with aggressive compiler flags. However, with a small amount of performance analysis, architectural insight and targeted code modification, the software developer can greatly improve the resulting application performance. Understanding and resolving pointer ambiguation is important on all architectures and will always improve performance, but on Itanium architecture-based processors the payoff can be enormous, and help release the full power of this new architecture.
Tags: Programming Languages, Application Development |
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Planning Considerations for HiperDispatch Mode | 2008-04-02 | IBM |
| For all levels of z/OS, a TCB or SRB may be dispatched on any logical processor of the type required (standard, zAAP or zIIP). A unit of work starts on one logical processor and subsequently may be dispatched on any other logical processor. The logical processors for one LPAR image receive an equal share for equal access to the physical processors under PR/SM LPAR control. For example, if the weight of a logical partition with four logical processors results in a share of two physical processors, or 200%, the LPAR hypervisor will manage each of the four logical processors with a 50% share of a physical processor. All logical processors are used if there is work available, and they typically have similar processing utilizations.
Tags: Mainframes, |
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Running Linux on the PlayStation 3: More Than a Toy | 2008-03-18 | IBM |
| The Sony PlayStation 3 (PS3) runs Linux, but getting it to run well requires some tweaking. In this paper, first in a series, Peter Seebach introduces the features and benefits of PS3 Linux, and explains some of the issues that might benefit from a bit of tweaking. When Sony first announced that the PlayStation 3 would be able to run Linux natively, a great deal of excitement ensued. Early on, it was a bit of a challenge to get Linux natively installed. The supported installer ran a custom script that hand-mangled a Fedora Core 5 or 6 install DVD into a runnable system with a special PS3 kernel. People put in hours and hours of effort to get other systems, such as Ubuntu, working. | |||
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Hosting Data Center Networking With Vyatta | 2008-03-10 | Vyatta |
| This paper will show how Vyatta open-source software combined with off-the-shelf x86 hardware can be leveraged to perform most routing and firewall requirements in the hosting data center at a fraction of the cost of closed proprietary systems. While proprietary networking equipment vendors have created discrete hardware product categories and price points based on arbitrary performance segmentation, open networking systems are proving that a single system can be continually upgraded to perform the same tasks. Vyatta solutions can be deployed at multiple points in the hosting data center from the backbone to the customer cage resulting in better performance and significantly faster Return On Investment (ROI).
Tags: Data Center, x86-standard Servers |
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LOB Application Compatibility: Using Microsoft IT's LOB Application Compatibility Testing Processes | 2008-03-01 | Microsoft Tips |
| Application compatibility is a concern any time an organization deploys new software to an existing computer environment. Whether the organization is deploying a new operating system or a new Web browser, it must ensure that the applications that users need to perform their daily tasks continue to function properly. Microsoft IT shares this challenge by being responsible for deploying and maintaining more than 1,500 internal LOB applications in an environment of mixed and changing operating systems, productivity applications, Web browsers, and development tools. With such a large portfolio of applications and a rapidly changing environment, Microsoft IT must identify commonalities between the applications in the portfolio as a means of grouping applications for testing. | |||
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Improving Notebook and Tablet Displays | 2006-04-14 | Fujitsu |
| In this paper discover how Fujitsu's breakthrough LCD technology, with Crystal View Treatment, is improving viewing angles in notebooks and tablets.
Tags: Scanners - Digitizers, Laptops, Tablets, Portable Computers, Monitors and Displays, Mobile - Wireless Communications |
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Notable Changes in Windows Vista SP1 | 2008-02-01 | Microsoft |
| Microsoft continuously improves the Windows Vista Operating System by providing ongoing updates while working with software and hardware vendors to help them to deliver improved compatibility, reliability and performance. Windows Vista Service Pack 1 (SP1) is another vehicle that Microsoft will use to deliver operating system improvements to customers. Windows Vista SP1 is an update to Windows Vista that, along with improvements delivered to users via these other channels, addresses feedback from the customers. In addition to previously released updates, SP1 will contain changes focused on addressing specific reliability, performance, and compatibility issues, supporting new types of hardware, and adding support for several emerging standards. SP1 also will continue to make it easier for IT administrators to deploy and manage Windows Vista. | |||
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Hotfixes and Security Updates Included in Windows Vista Service Pack 1 | 2008-02-01 | Microsoft |
| Windows Vista Service Pack 1 includes all previously released updates for Windows Vista. Many of these updates are available to the public on the Microsoft Download Center and Windows Update, while others are only available to specific customers or partners. It is standard practice to include all of these updates in a Service Pack and as such they are included in Windows Vista SP1. | |||
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An Assessment of Leadership Performance With POWER6 Processors and Red Hat Enterprise Linux 5.1 | 2008-01-31 | IBM |
| Compute-intensive performance is increasingly required for today's high-performance environments. The IBM System p 570 with POWER6 processors provides leadership performance and demonstrates excellent scalability moving from one node to four nodes in this environment while providing linear SMP (Symmetric Multiprocessing) scaling and growth for workloads similar to the metrics used here. This paper highlights the exceptional performance on IBM's POWER6 processor-based systems running with the latest Red Hat Enterprise Linux (RHEL) 5.1 operating system, based on recently audited published SPEC CPU2006 and SPECjbb2005 results, including single-system LINPACK metrics on System p 570 4-core, 8-core and 16-core systems. With Simultaneous Multithreading (SMT) support turned on, Linux is easily able to provide effective scheduling support of the 32 processor threads seen on the 16-core 570 system.
Tags: Processors, Linux Server OS |