Linux Plumbers Conference and Kernel Developments in METRICFS, FS-Cache, HWMON
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Application Ecosystem Microconference Accepted into 2020 Linux Plumbers Conference
We are pleased to announce that the Application Ecosystem Microconference has been accepted into the 2020 Linux Plumbers Conference!
The Linux kernel is the foundation of the Linux systems, but it is not much use without applications that run on top of it. The application experience relies on the kernel for performance, stability and responsiveness. Plumbers is the perfect venue to have the kernel and app ecosystems under one roof to discuss and learn together and make a better application experience on the Linux platform.
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Google Opens Patches For "METRICFS" That They Have Used Since 2012 For Telemetry Data
The METRICFS file-system has been in use internally at Google since 2012 for exporting system statistics to their telemetry systems with around 200 statistics being exported per machine. They are now posting the METRICFS patches as open-source for review and possible upstreaming.
A "request for comments" on METRICFS was sent out today on the Linux kernel mailing list. Their motives for now finally publishing these patches is as a result of the recent Statsfs proposal by a Red Hat engineer for a RAM-based file-system for exposing kernel statistics to user-space. METRICFS has a similar aim to Statsfs.
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FS-Cache Rewritten But Even Its Developers Are Hesitant About Landing It For Linux 5.9
FS-Cache provides the Linux kernel with a general purpose cache for network file-systems like NFS and AFS but also other special use-cases like ISO9660 file-systems. FS-Cache has been rewritten for better performance and reliability, among other benefits, and while it has been sent in as a pull request for Linux 5.9 even its own developers provide some caution over landing it this cycle.
FS-Cache has seen work to "massively overhaul" it with a variety of improvements. The new and improved FS-Cache will now use async direct I/O in place of snooping for updated pages that in turn means less virtual memory overhead. The new FS-Cache implementation has simpler object management, changes to object invalidation, and a variety of other work.
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Corsair Commander Pro Driver Sent In To Linux 5.9
The hardware monitoring (HWMON) subsystem has a new driver that is likely to excite some enthusiasts wanting greater control over thermal monitoring and fan control for their systems.
The previously covered Corsair Commander Pro Linux driver is now coming with Linux 5.9. The Commander Pro offers six 4-pin fan ports with PWM controls, two RGB LED channels, and four thermal sensors. An interested user/developer created this Linux driver without the support from Corsair. The thermal and fan control support is in place with this new HWMON driver while the RGB lighting controls are available from OpenRGB.
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