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Leftovers: Kernel

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Linux
  • Stop whatever you're doing and pay attention: Linux kernel 4.5rc1 is here

    ANY MINUTE now we should see the first release candidate for Linux kernel 4.5, and there's a lot to look forward to.

    It seems like only a fortnight ago that we talked about the final release of Linux 4.4 (it was) but a lot has happened.

    Most notable is that the kernel is now ready for Kaby Lake, the next generation of Intel processors due later this year. This was expected to start in 4.4 but the method of the Linux release schedule meant it was dropped.

  • No SJWs allowed
  • An anonymous response to dangerous FOSS Codes of Conduct
  • Intel Is Still Maintaining A Proprietary OpenCL Driver For Linux
  • Understanding Intel's GEN Assembly For OpenCL Kernels
  • libinput and semi-mt touchpads

    libinput 1.1.5 has a change in how we deal with semi-mt touchpads, in particular: interpretation of touch points will cease and we will rely on the single touch position and the BTN_TOOL_* flags instead to detect multi-finger interaction. For most of you this will have little effect, even if you have a semi-mt touchpad. As a reminder: semi-mt touchpads are those that can detect the bounding box of two-finger interactions but cannot identify which finger is which. This provides some ambiguity, a pair of touch points at x1/y1 and x2/y2 could be a physical pair of touches at x1/y2 and x2/y1. More importantly, we found issues with semi-mt touchpads that go beyond the ambiguity and reduce the usability of the touchpoints.

  • PV vs PVHVM on next XenServer

    That's not really surprising: new hardware tends to include more and more instructions to assist virtualization. So in fact, the "cost" of virtualization (in terms of performances) is reduced.