[Bug 216759] [kern] Memory speed with small blocks (1K) up to 35 times slower than host system (under QEMU emulation, but not only)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216759

--- Comment #23 from commit-hook at FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/ports/commit/?id=563d5929d5f28631999a32d2aab4e72e1bf2c323

commit 563d5929d5f28631999a32d2aab4e72e1bf2c323
Author:     Dave Cottlehuber <dch at FreeBSD.org>
AuthorDate: 2021-05-30 13:35:19 +0000
Commit:     Dave Cottlehuber <dch at FreeBSD.org>
CommitDate: 2021-05-30 13:35:19 +0000

    sysutils/kvmclock-kmod: new port - call for testing

    Improved performance on KVM paravirtualised systems. Testing
    welcomed; please report successes and issues to:

    https://reviews.freebsd.org/D29733

    kvmclock-kmod is experimental and currently under development. This port
    provides an easy and quick method for users to test this code for early
    testing, feedback and bug reports.

    This driver enables FreeBSD to use a more efficient paravirtualized
    hardware clock, instead of emulating one, or abusing hypervisor
    interrupts, when running as a virtualized OS under Linux KVM
    (Kernel-based Virtual Machine).

    Reviewed by:    allanjude
    Sponsored by:   Klara Inc.
    Sponsored by:   SkunkWerks, GmbH
    Differential Revision:  https://reviews.freebsd.org/D30459
    PR:                     216759

 sysutils/Makefile                        |  1 +
 sysutils/kvmclock-kmod/Makefile (new)    | 25 +++++++++++++++++++++++++
 sysutils/kvmclock-kmod/distinfo (new)    |  3 +++
 sysutils/kvmclock-kmod/pkg-descr (new)   | 11 +++++++++++
 sysutils/kvmclock-kmod/pkg-message (new) | 24 ++++++++++++++++++++++++
 5 files changed, 64 insertions(+)

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