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Some Small Progress On Linux GPU Laptop Switching

A few weeks ago we reported that notebook hybrid graphics switching on Linux still sucks. For these newer laptops that boast dual GPUs -- an integrated low-power IGP and a more performance-oriented discrete GPU for demanding environments with switching between the two being done "seamlessly" in real-time based upon usage...

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Compiler Benchmarks Of GCC, LLVM-GCC, DragonEgg, Clang

LLVM 2.8 was released last month with the Clang compiler having feature-complete C++ support, enhancements to the DragonEgg GCC plug-in, a near feature-complete alternative to libstdc++, a drop-in system assembler, ARM code-generation improvements, and many other changes. With there being great interest in the Low-Level Virtual Machine, we have conducted...

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PerfKit: A Nicer Way To Look At Valgrind, FTrace, Etc

Christian Hergert has announced the PerfKit tool (or as he calls it, a "toy") during the Linux Plumbers Conference taking place this week in Cambridge. PerfKit provides a GTK user-interface and the ability to provide plug-ins that hook into the various developer utilities like Valgrind (memory profiling/debugging), FTrace (trace system...

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Getting Hooked on Open Source Prosthetics

A few months ago, I wondered: Can open source create better prosthetics? I've been meaning to revisit the topic and see what kind of progress the project is making. While writing that first article, I learned that the leaders of the project were struggling with collaborative tools and multiple projects...

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The Major Happenings From The Ubuntu 11.04 Summit

Last week was the Ubuntu 11.04 Developer Summit in Orlando, Florida of the United States where a variety of topics were discussed. Aside from the very surprising announcement that Ubuntu 11.04 will use the Unity Desktop rather than GNOME's interface, most of the coverage on Phoronix was focused around the...

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NCSA Director: GPU is The Future of Supercomputing

According to this CNET report, NCSA Director Thom Dunning believes that the future of supercomputing can be summed up in three letters: GPU. What we’re really seeing in the efforts in China as well as the ones we have in the U.S. is that GPUs are what the future will look like,” said Dunning in a phone interview Thursday. “What we’re seeing is the beginning of something that’s going to be happening...

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