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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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OpenMDTK - Host Based Provisioning

For the last week, I have been working on adding Intel AMT Host Based Provisioning (HBP) to the Open Manageability Developer Tool Kit (MDTK) and this afternoon, I posted version v0.077 with that feature added in. For people who don't know, Host Based Provisioning is a quick and easy way to setup Intel AMT 6.1 and higher. You need to be administrator on the local machine and have Intel AMT 6.1 or higher. With the new 0.77 version...

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