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Kernel: Linux 4.19 and Some New/Upcoming Features

Submitted by Roy Schestowitz on Wednesday 17th of October 2018 03:09:07 AM Filed under
Linux
  • The Biggest Features Of Linux 4.19: Intel/AMD, CoC, 802.11ax, EROFS, GPS & GASKET

    With the Linux 4.19 kernel set to be released next weekend, here's a recap of the most prominent features to be found in this next kernel release.

  • Linux's LoRa Is Ready To Deliver Long-Range, Low-Power Wireless

    Adding to the long list of new features for what will be Linux 4.20 or likely renamed to Linux 5.0 per Linus Torvalds' numbering preferences is a new wireless networking subsystem within the kernel's networking code... Meet LoRa.

    LoRa is a long-range, low-power wireless standard with the bits planned for the mainline kernel been in the works for the past number of months. LoRa was developed for IoT use-cases and runs on sub-gigahertz radio frequency bands while aiming for transmissions that can span beyond 10 kilometers (6+ miles). LoRa is designed to be inexpensive and work out well for deployment in rural and remote environments. The frequencies that LoRa operates at also requires no licenses.

  • The Next Linux Kernel Will Bring More Drivers Converted To Use BLK-MQ I/O

    More Linux storage drivers have been converted to the "blk-mq" interfaces for the multi-queue block I/O queuing mechanism for the 4.20~5.0 kernel cycle.

    Blk-mq is capable of delivering much better performance with modern storage devices -- namely NVMe PCI Express SSDs but also SCSI drives. This code that's been part of the Linux kernel the past few years allows mapping I/O to multiple queues and distributing the tasks across multiple CPU threads, thus scaling better with today's multi-core servers, while also supporting multiple hardware queues of capable devices.

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