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Dance Around The Fire: X.Org XAA Is Burned

Prior to closing the merge window for X.Org Server 1.13, Keith Packard pulled Daniel Stone's latest patches, which have killed off XAA acceleration support for DDX drivers...

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Gregg: Linux Kernel Performance: Flame Graphs

Brendan Gregg demonstrates "flame graphs" as a tool for tracking down kernel performance problems. "The perf report tree (and the ncurses navigator) do an excellent job at presenting this information as text. However, with text there are limitations. The output often does not fit in one screen (you could say...

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Holy Holey Optochip! IBM Hits a Terabit of Info Per Second

Big Blue's new prototype chip surpasses major milestone, thanks to unlikely innovation: tiny holes in a quarter-inch chip, boosting data transfer.

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Linux KVM vs. HandelSpielVM Virtualization

At the request of many Phoronix readers, here are some new Linux virtualization benchmarks. Being compared is the performance of KVM (the Kernel-based Virtual Machine) to that of HandelSpielVM on the Linux 3.0 kernel with a stock Ubuntu 11.10 for both the host and guest.

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AMD Linux KVM Virtualization Benchmarks

In recent weeks there have been a lot of AMD Linux benchmarks of the latest-generation Bulldozer processor, namely the eight-core FX-8150. The latest unique look at the first-generation Bulldozer CPU under Linux is the KVM virtualization performance...

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