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Tuesday, March 28th, 2017

    Time Event
    2:27p
    Security updates for Tuesday
    Security updates have been issued by Debian (eject, gst-plugins-bad1.0, gst-plugins-base1.0, gst-plugins-good1.0, gst-plugins-ugly1.0, gstreamer1.0, php5, and tiff), Fedora (kernel), Gentoo (curl, deluge, libtasn1, and xen-tools), Mageia (mbedtls, putty, and roundcubemail), openSUSE (dbus-1, gegl, mxml, open-vm-tools, partclone, qbittorrent, tcpreplay, and xtrabackup), and Ubuntu (eject, gst-plugins-base0.10, gst-plugins-base1.0, and gst-plugins-good0.10, gst-plugins-good1.0).
    3:38p
    [$] Huge pages in the ext4 filesystem
    When the transparent huge page feature was added to the kernel, it only
    supported anonymous (non-file-backed) memory. In 2016, support for huge pages in the page cache was
    added, but only the tmpfs filesystem was supported. There is interest in
    expanding support to other filesystems, since, for some workloads, the
    performance improvement can be significant. Kirill Shutemov led the only
    session that combined just the filesystem and memory-management tracks at
    the 2017 Linux Storage, Filesystem, and Memory-Management Summit in a
    discussion of adding huge-page support to the ext4 filesystem.
    6:17p
    Google's new open-source site
    Google has announced the launch of opensource.google.com. "Today, we’re launching opensource.google.com, a new website for Google Open Source that ties together all of our initiatives with information on how we use, release, and support open source. This new site showcases the breadth and depth of our love for open source. It will contain the expected things: our programs, organizations we support, and a comprehensive list of open source projects we've released. But it also contains something unexpected: a look under the hood at how we "do" open source."

    7:53p
    Kubernetes 1.6 released
    Version 1.6 of the Kubernetes orchestration system is available. "In this release the community’s focus is on scale and automation, to help you deploy multiple workloads to multiple users on a cluster. We are announcing that 5,000 node clusters are supported. We moved dynamic storage provisioning to stable. Role-based access control (RBAC), kubefed, kubeadm, and several scheduling features are moving to beta. We have also added intelligent defaults throughout to enable greater automation out of the box."

    7:57p
    [$] Supporting shared TLB contexts
    A processor's translation lookaside buffer (TLB) caches the mappings from
    virtual to physical addresses. Looking up virtual addresses is expensive,
    so good performance often depends on making the best use of the TLB. In
    the memory-management track of the 2017 Linux Storage, Filesystem, and
    Memory-Management Summit, Mike Kravetz described a SPARC processor feature
    that can improve TLB performance and explored ways in which that feature
    could be supported.

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