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Supporting Ideas, Collaboration and Innovation

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Windows 10: Too many cores hinder performance?

Windows 10 suffers from bugs that slow down the operation of the OS when it needs to run on machines with many processor cores.

More cores are not always better when it comes to computing. One could imagine that the acquisition of a powerful machine with 24 cores would do wonders regarding performance.

But on his blog, programmer Bruce Dawson is not as optimistic…

He explains why he was experiencing unexplained slowdowns on his machine, bugs that he did not find when he changed configuration by switching to another OS or running Windows 10 on a more traditional machine.

Bruce Dawson currently works for Google and more specifically for the Chrome team. But as explained in his biography, he also worked in the past for Microsoft, mainly in the field of debugging and performance improvement. With such a pedigree, the programmer, therefore, sought to understand a little more in detail what caused these unexplained slowdowns on his machine.

To do this, he examined the operation of the processor via the information collected by Windows and performance analysis tools. Analyzes that allowed him to refine his diagnosis: a particular process related to the closure of ongoing processes and called NtGdiCloseProcess.

Without going into the technical and complicated details, this process fails to properly exploit multiple cores to duplicate its spots, and these are treated serially by a single heart. A non-optimal use of the memory, which has the effect of causing significant slowdowns of the machine when it has to close many processes at the same time.

To test this phenomenon, the researcher has thus created a script capable of creating on the fly more than 1000 processes, then wait a few seconds before closing them abruptly. The behavior differs dramatically when Bruce Dawson retries the experience on Windows 7, which uses all the cores to run the processes.

For the researcher, this phenomenon illustrates a phenomenon that attempts to explain the limits inherent in the distribution of calculations on several hearts and the “bottleneck” effect of certain spots that can not be duplicated.

As Bruce Dawson notes, frequent machine reboots can help minimize the consequences of this bug. The researcher added that he had informed Microsoft of this problem and that the teams are investigating the problem. One can, therefore, hope for a resolution of it in a future patch.

Four most successful startups of 2016

Some businesses started as a joke, yet they have generated millions of dollars at the moment making them gain attention from the world. Below are some of them.

#1. Product Hunt

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With the increasing number of websites in the world, it is tough to find some things online. This product hunt app was developed to ensure that people can easily get the products by locating them where they are through typing their name on the app search icon. It has an estimated capital of $7 million, and it started in 2013.

#2. DoorDash

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This is a food delivery app that was launched in 2013 by Andy Fang, Stanley Tang, Evan Moore and Tony Xu. It is commonly used to order fast foods from restaurants and to the US and Canadian homes. It is known for its long way development because it started from Stanford Dorm room. It is worth $60 million though many people say it is still small of that net worth. It has partnered with major brands like KFC, 7-Eleven, and Dunking Donuts and this has made it more successful that before.

#3. Boxed

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Boxed is a company that was started to emancipate people from the burden of carrying a lot of luggage when shopping. You can now use the app to buy all things you want, and all the things shall be brought to your doorstep. It is worth $132 million and it has the best reviews for its services.

#4. Luxe Valet

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This is an app that shows you the available parking space near you so that you don’t struggle a lot to get parking for your car. They can even wash your car and change the oil. It has a net worth of $25 million.

These are the startups that people think it was a joke, but now they have made it.