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Kernel: Reiser4, Tickless Systems and ARM

Submitted by Roy Schestowitz on Tuesday 1st of January 2019 10:15:17 PM Filed under
Linux
  • Reiser4 File-System Port To The Linux 4.20 Kernel

    There hasn't been a formal Reiser4 file-system patch release since September when it was ported to the Linux 4.18 kernel, but via Git this week there is a port for the Linux 4.20 kernel should you want to utilize this once promising file-system under the latest stable patch series.

    Edward Shishkin, the last main Reiser4 developer involved and former employee of Hans Reiser's Namesys company, has updated his Reiser4 kernel tree where there is now the few code changes necessary to get the file-system kernel module building for Linux 4.20 along with a patch containing a fix.

    That's the most Reiser4 activity we've seen in months since back in September was the last patch release on SourceForge adding Linux 4.18.0 compatibility.

  • Intel Developing New CPU Idle Governor For Tickless Systems

    Linux power management expert Rafael Wysocki, who is also the maintainer of the ACPI/PM subsystems, has been working on the "TEO" the past few months as the Timer Events Oriented governor for CPUIdle framework.

    The CPUIdle governor is responsible for deciding the desired C-state of the CPU/system. Rafael has been working on this new "TEO" governor for Linux tickless systems with this new design that is smarter and potentially offers some minor performance benefits. Rafael explained, "the timer events oriented (TEO) governor, uses the same basic strategy as menu: it always tries to find the deepest idle state that can be used in the given conditions. However, it applies a different approach to that problem."

  • The New ARM Hardware Support That's Now Part Of The Linux 4.21 Kernel

    The ARM platform and board changes were sent in on New Year's Eve for the Linux 4.21 kernel.

»

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