Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1224479

Re: [RFC v5 0/3] mm: make swapin readahead to gain more thp performance

Show all headers | View raw

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.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[RFC v5 0/3] mm: make swapin readahead to gain more thp performance Ebru Akagunduz <ebru.akagunduz@gmail.com> - 2015-09-14 21:40 +0200
  Re: [RFC v5 0/3] mm: make swapin readahead to gain more thp  performance Andrew Morton <akpm@linux-foundation.org> - 2015-09-14 23:50 +0200

csiph-web