Comparison: Free Rippers

Comparison: Free Rippers

When the hard disk of a computer saves a new file, it is in fragments. These are not necessarily the size of the file, so normally a file is divided into several different parts scattered around the hard drive.

Inevitably, over time the fragments of files end up occupying all of our positions away from each other, so that Windows will cost more time to access the pieces of a file. As a result, the system slows down.

The solution to this problem is defragmentation programs that reorganize the mess, staying in the same place for the same file. Windows comes with a default, but there are more with different functions.

Here we review the most popular free defragmenters.

Speed

One of the reasons that can lead us to opt for an alternative to the Windows defragmenter is that it is faster.

In tests, UltraDefrag, Auslogics Disk Defrag and UltimateDefrag have proven to be the fastest, up to double the Windows Defragmenter. For its part, Defraggler and JKDefrag takes the same time perform the same task.

Working with multiple schedule defragmenting disks and

Today, with the number of files we use, we often have more than one hard drive or more than one partition on your computer. Thus, defragment one by one is a bit uncomfortable.

The same goes for manual defragmentation. It's much better if the Program itself is responsible for conducting work on a specific day and time.

Of the five defragmenters analyzed, only Auslogics Disk Defrag and Disk Defragmenter to select several at once. Regarding the defragmentation program, and UltraDefrag JKDefrag are the ones who do not include this feature.

Defragmenting individual files

Not all files are fragmented, thus making the entire disk defragmentation may be unnecessary. Auslogics Disk Defrag, and UltimateDefrag UltraDefrag to select a folder or individual file to defragment, rather than performing the operation with the entire unit.

Full optimizing

A part of a standard defragmentation, disk optimization take longer fragmented, servicing further or eliminate unnecessary or temporary files are options to consider opting for a defragmenter.

Thus, we will use it less because the disc takes longer to fragment again.

Conclusions

Despite being free, the five analyzed defragmenters have demonstrated over the Windows file Defragmenter.

Although not all are in Spanish, its interface is fairly intuitive, some can be used from a USB drive, and offer features that make them worthy alternatives.

For less demanding users and that is simple, and Auslogics Disk Defrag Defraggler defragmentation are indicated.

For its part, offers quality JKDefrag but sacrificing ease of use and personalization.

Finally, UltimateDefrag UltraDefrag and defragmentation are shown as for advanced users who seek to fully customize the maintenance task to achieve peak performance.

Via: Comparison: Free Rippers

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Nvidia White Paper on dual-core ARM processor Tegra 2 before

Nvidia White Paper on dual-core ARM processor Tegra 2 before

Nvidia has a White Paper (PDF) presented to its Tegra-2 processor family. These are dual-core CPUs based on the ARM Cortex-A9 architecture. The new CPUs are already in Toshiba's Android netbook AC100 used. In future, smartphones series Optimus by LG with the new processor equipped be.

In the course of 2011 will go the trend in high-end smartphones clearly dual-core ARM CPUs. This resulted from the simple fact that an increase in Taktfreuquenz, which is technically not a problem leads to a disproportionate increase in electricity consumption. The power consumption is proportional to the square of the voltage and clock frequency. Since a higher clock frequency at the same time also requires a higher voltage, are multi-core architectures with a moderate clock frequencies, the better alternative in the mobile space.

Current high-end smartphones are equipped with clock frequencies to 1 GHz. One could, however, identify performance problems when multitasking. There are clear that if you can see on a web page Flash animations. Android smartphones but would offer Flash support, however, the response times would take too much. A dual-core architecture can use a core for the Flash animation, while the second make sure that your phone still performant react to user input. With a dual-core CPU generally attributed the need for multitasking operating system vendors restrict or prohibit.

Even seemingly static web pages to load can be significantly improved. In the Web 2.0 era, there is less and less easily linked websites. Links were often composed on the fly using some complex JavaScript functions. If more than one of these links are on a website could provide a multi-core architecture for a speed advantage.

The Moonbat benchmark, which measures the performance of multithreaded javascript, have a Tegra-2 processor, the 2.5-times the speed of Nexus One and Samsung Galaxy S achieved. The tests were carried out under Android 2.2 with Firefox. Firefox Mobile is currently in beta phase.

The Tegra 2 can meet current smartphones Moonbat benchmark. Suspicious, the fact that Nvidia has used a beta of Firefox mobile and not the default browser on Android WebKit-based.

For a further performance boost worry the Cortex-A9 architecture. In contrast to previous Cortex-A8, the new CPUs support speculative Out-of-order execution. Each core is equipped with 32 KB L1 data and instruction cache. In addition, there is a common 1 Mbyte L2 cache, the coherence of a snoop control unit is ensured.

Special emphasis is laid on the capabilities of the integrated Nvidia GPU. The 3D performance is compared with the Tegra 1 models by up to five times higher. We thus reach a level that was suitable for games consoles. In addition, the architecture between the mobile GPU and Nvidia solutions for notebooks and desktops are very similar, so that existing games could be easily ported from PCs to mobile devices.

So far, Nvidia has had in marketing its Tegra processors for smartphones little success. Many manufacturers preferred other ARM CPUs, especially the Snapdragon processors Qualcomm. Qualcomm Dual-core CPUs based on the Cortex-A9 architecture for next year announced. First test samples to be shipped earlier this year. They are manufactured in a structure width of 28 nanometers and support in addition to Bluetooth, WLAN, GPS, GSM and UMTS support the emerging wireless standard LTE. The clock frequency is 1.2 GHz.

Nvidia Tegra can produce its current 2-CPUs in 40-nanometer technology. For future models of the white paper makes no reference to clock frequencies, linewidths and supported wireless technologies. A structure width of 28 nanometers can reduce the power consumption compared to 40 nanometers at the same clock speed by about 65 percent.

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Final specification of PCI Express 3.0 is ready

Final specification of PCI Express 3.0 is ready

Support for development of PCI Express competent PCI Special Interest Group (PCI-SIG) Has the final Specification 3.0 extension of the standard for connecting peripheral devices to the CPU chipset releases. The latest version offers a higher bandwidth and provides new functions for the most common I / OBus.

PCIe 3.0 increases frequency to 8 GHz, but remains compatible with earlier specifications PCIe 1.x and 2.x to 2.5 GHz 5 GHz, respectively. Due to the higher clock reaches PCIe 3.0 net bandwidth of almost 1 GByte / s in one direction on a single track (x1). At a transmission over 32 conductors (x32) the transfer rate increases by analogy, to up to 32 GB / s.

The previous 8B/10B encoding is a 128B/130B-Kodierung replaced. This will significantly increase the efficiency, the bottom line is what allows a doubling of the bandwidth without doubling the clock frequency.

Other enhancements include additional mechanisms for dynamic adjustment of power consumption, improved Tolerance Reporting Latency (PDF) and an optimized error correction. Hardware manufacturers now have access to the "PCI Express Base 3.0 Specification and can integrate the technology into their products.

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