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SubjectRe: [RFC PATCH v3 0/7] ktask: multithread CPU-intensive kernel work
On Tue,  5 Dec 2017 14:52:13 -0500 Daniel Jordan <daniel.m.jordan@oracle.com> wrote:

> This patchset is based on 4.15-rc2 plus one mmots fix[*] and contains three
> ktask users:
> - deferred struct page initialization at boot time
> - clearing gigantic pages
> - fallocate for HugeTLB pages

Performance improvements are nice. How much overall impact is there in
real-world worklaods?

> Work in progress:
> - Parallelizing page freeing in the exit/munmap paths

Also sounds interesting. Have you identified any other parallelizable
operations? vfs object teardown at umount time may be one...

> - CPU hotplug support

Of what? The ktask infrastructure itself?

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