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    SubjectRe: sysbench throughput degradation in 4.13+
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    On 09/27/2017 06:27 PM, Eric Farman wrote:
    >
    >
    > On 09/27/2017 05:35 AM, Peter Zijlstra wrote:
    >> On Fri, Sep 22, 2017 at 12:12:45PM -0400, Eric Farman wrote:
    >>>
    >>> MySQL. We've tried a few different configs with both test=oltp and
    >>> test=threads, but both show the same behavior. What I have settled on for
    >>> my repro is the following:
    >>>
    >>
    >> Right, didn't even need to run it in a guest to observe a regression.
    >>
    >> So the below cures native sysbench and NAS bench for me, does it also
    >> work for you virt thingy?
    [...]

    > --test=oltp
    > Baseline: 5655.26 transactions/second
    > Patched: 9618.13 transactions/second
    >
    > --test=threads
    > Baseline: 25482.9 events/sec
    > Patched: 29577.9 events/sec
    >
    > That's good! With that...
    >
    > Tested-by: Eric Farman <farman@linux.vnet.ibm.com>
    >
    > Thanks!
    >
    > - Eric

    Assuming that we settle on this or Riks alternative patch.
    Are we going to schedule this for 4.13 stable as well?

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