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Leftovers: Kernel

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Linux
  • FIXME and TODO comments in the Linux kernel source

    While looking at some code in the Linux Kernel this morning I spotted a few FIXME comments and that got me wondering just how many there are in the source code. After a quick grep I found nearly 4200 in v4.4.0-rc8 and that got me thinking about other similar comment tags such as TODO that are in the source and how this has been changing over time.

  • The Thousands Of FIXMEs & TODOs In The Linux Kernel

    Canonical's Colin King has looked at the number of FIXME and TODO comments within the Linux kernel tree.

    King found that currently there are more than four thousand "FIXME" comments within the Linux 4.4 kernel source code. After becoming curious, he found almost 4,500 "TODO" comments in the kernel source code as well.

  • Automotive Grade Linux makes the grade with AGL UCB for Ford, Subaru, Mazda & Mistubishi

    Automotive Grade Linux , connected car open source software, announced that Subaru, Mitsubishi Motors, Mazda Motor Corporation and Ford Motor Company are joining The Linux Foundation and AGL. Ford Motor Company is the first U.S. car manufacturer to join AGL. These latest automakers join existing members Toyota Motor Corporation, Nissan Motor Company Ltd. and Linux Foundation board member Jaguar Land Rover to round-up the list of OEM supporters within AGL.

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With this week's Ryzen 5 2600X + Ryzen 7 2700X benchmarks some thought the CPUFreq scaling driver or rather its governors may have been limiting the performance of these Zen+ CPUs, so I ran some additional benchmarks this weekend. Those launch-day Ryzen 5 2600X / Ryzen 7 2700X Ubuntu Linux benchmarks were using the "performance" governor, but some have alleged that the performance governor may now actually hurt AMD systems... Ondemand, of course, is the default CPUFreq governor on Ubuntu and most other Linux distributions. Some also have said the "schedutil" governor that makes use of the kernel's scheduler utilization data may do better on AMD. So I ran some extra benchmarks while changing between CPUFreq's ondemand (default), performance (normally the best for performance, and what was used in our CPU tests), schedutil (the newest option), and powersave (if you really just care about conserving power). Read more