Messages in this thread | | | Date | Mon, 14 Sep 2015 14:41:06 -0700 | From | Andrew Morton <> | Subject | Re: [RFC v5 0/3] mm: make swapin readahead to gain more thp performance |
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On Mon, 14 Sep 2015 22:31:42 +0300 Ebru Akagunduz <ebru.akagunduz@gmail.com> wrote:
> This patch series makes swapin readahead up to a > certain number to gain more thp performance and adds > tracepoint for khugepaged_scan_pmd, collapse_huge_page, > __collapse_huge_page_isolate.
I'll merge this series for testing. Hopefully Andrea and/or Hugh will find time for a quality think about the issue before 4.3 comes around.
It would be much better if we didn't have that sysfs knob - make the control automatic in some fashion.
If we can't think of a way of doing that then at least let's document max_ptes_swap very carefully. Explain to our users what it does, why they should care about it, how they should set about determining (ie: measuring) its effect upon their workloads.
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