Borrows Google Packet Speeding Tech of New Linux kernel

Harnessing a pair of protocols developed by Google, the newly released version of Linux kernel should be able to speed network traffic throughput considerably.

The technique is one of a number of new features that come with the latest update of the open source operating system kernel, Linux version 2.6.35, which Linus Torvalds released on Sunday.

In addition the usual round of bug fixes and optimizations, the new version has a number of new features to make it more usable in today's bustling multicore, networked environments.

Chief among these new features is the inclusion of Google's Receive Packet Steering (RPS) and Receive Flow Steering (RFS). RPS spreads incoming packets out across all of the CPUs available on the machine, and RFS calculates which cores would be best suited for processing, given factors such as which applications will be using the network traffic, according to an explanation offered by the Kernel Newbies Web site.

The site cited a benchmark test showing how an eight-core Intel CPU-based server, with an Intel e1000e network adapter, doubled the number of networking-based transactions-per-second (tps) it could execute with RPS and RFS in place, from 104,000 tps (at about 30 percent CPU usage), to 303,000 tps (and 61 percent CPU usage).

The feature is a timely one, given the recent advances in network traffic protocols that allow for greater throughput. Ethernet vendors, for instance, are in the process of upgrading to the new standards for 40 Gigabit and 100 Gigabit Ethernet. "Network cards have improved the bandwidth to the point where it's hard for a single modern CPU to keep up," explained Kernel Newbies.

Other new features include a new form of memory compression, a front-end for a debugger supplied by SGI, the ability to manage multiple multicast route tables, and a new mode of the XFS file system that bundles logging tasks in order to cut down input/output traffic.

This new version of the Linux kernel comes less than the months after the release of the previous iteration, 2.6.34.

Via: [networkworld]

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RAM Memory Care

After the previous post, I discussed about the problems that occurred in RAM, so on this occasion I will give you tips on how to care for the RAM to make it more durable.
Here are some points that can be noticed in the treatment of computer RAM.

1. Avoid over clocking action if the computer does not support for the over clock.
2. Keep the temperature stable computer with install more fans inside the casing and a good computer.
3. Use a memory from vendors who have proven good quality.
4. Use a memory with the capacity and relevant PC applications that will be used to work so that the computer does not happen often hangs.

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Hard Drive Temperature on Your Monitor

Ilustration

The hard drive is one of the hardest working computer components in your case, yet you rarely see it or need to interact with it until there is a problem. Your computer begins to run slow and lags. While this could indicate a hot CPU, you could also be experiencing the symptoms of an overheating hard drive. Hard drives are made up of moving parts that spin quickly and generate heat. The resulting heat will not only cause the hard drive to slow down, but the heat it generates can cause the CPU and video card to overheat.

So how do you check your hard drive’s temperature? There are many programs you can run to monitor the temperature of your hard drive, but HDD Health is a lightweight applications that quietly runs in the background and accesses the S.M.A.R.T (Self-Monitoring-and-Reporting-Technology) built into modern hard drives.  Aside from the hard drive temperature, HDD Health will also display some important information about our hard drive, such as model and firmware version.

Hard drive health

So how do you cool down a hot hard drive? You should clean the intake fans that draw air in through the front. If your case does not have an intake fan, just make sure the grill area at the front of the case is free on debris. You case might also have a fan that pulls hot air out of the case through the back. If it does not, the power supply will. Make sure the grills on the inside of the power supply and the back of the case are clear.

Make sure you do not stack hard drives on top of each other. If you have more than one hard drive, try to space them a couple inches apart.

Another thing you can do to cool off the hard drive is defrag it. The less a hard drive has to work, the cooler it will run. Lastly, make sure the cables are arranged inside the case in such a way that air can flow through the front and out the rear with little resistance.

The cooler your hard drive runs, the cooler the ambient temperature inside the case will be. This will improve the general health and reliability of your PC for years to come.

Download HDD Health

Via: [pctechbytes]

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Troubleshooting on RAM

Below are points to be discussed indications of damage on the RAM and find it.

1. Computer sound "beep" over and over again without long-displaying pictures on screen when the computer starts up. The solution is:

• Make sure the RAM are mounted on DIMM slot with a perfect & locked.
• Make sure that the installation of two RAM chips with the same PC and preferably by the same vendor brand.
• If the RAM is damaged, replace it with a new RAM and better with RAM that has a capacity greater than the damage.

2. Installation of two keeping the RAM that does not fit on a computer often leads to problems, among others:

• Computers will often hang and blue screen appears when we work in an application program or playing games.
• Computers also often can not survive or when booting up.
• The solution to this problem is to replace one RAM chip with a PC and the same vendor brand RAM is only so that both the PC and the brand has the same vendor despite the different capacities second RAM (for the RAM type of single channel).

3. RAM if installed capacity is not sufficient premises, computer performance will be slower in reading data or run applications programs. This can be overcome by increasing the existing capacity of RAM, but it must be with the same RAM and PC will be better if with the same vendor brand.

4. ROM type memory damage will result in blank computer or can not live at all. This can be overcome by replacing the ROM or BIOS upgrade with the same type.

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