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    SubjectRe: thousands of kworker processes with 4.7.x and 4.8-rc*
    On 2016-09-25 18:29, Tomasz Chmielewski wrote:

    >> I'll try to bisect.
    >
    > OK, not a kernel regression, but some config change caused it.
    > However, I'm not able to locate which change exactly.
    >
    > I'm attaching two configs which I've tried with 4.7.3 - one results in
    > thousands of kworkers, and the other doesn't. Also included a diff
    > between them.
    >
    > Any obvious changes I should try?

    The problem is the allocator.

    -CONFIG_SLUB=y
    +CONFIG_SLAB=y


    With SLUB, I'm getting a handful of kworker processes, as expected.

    With SLAB, I'm getting thousands of kworker processes.


    Not sure if that's expected behaviour or not.


    Tomasz Chmielewski
    https://lxadm.com


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