lkml.org 
[lkml]   [2021]   [Aug]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC PATCH 00/15] Make MAX_ORDER adjustable as a kernel boot time parameter.
From
Date
On 8/5/21 9:02 PM, Zi Yan wrote:
> From: Zi Yan <ziy@nvidia.com>
>
> Hi all,
>
> This patchset add support for kernel boot time adjustable MAX_ORDER, so that
> user can change the largest size of pages obtained from buddy allocator. It also
> removes the restriction on MAX_ORDER based on SECTION_SIZE_BITS, so that
> buddy allocator can merge PFNs across memory sections when SPARSEMEM_VMEMMAP is
> set. It is on top of v5.14-rc4-mmotm-2021-08-02-18-51.
>
> Motivation
> ===
>
> This enables kernel to allocate 1GB pages and is necessary for my ongoing work
> on adding support for 1GB PUD THP[1]. This is also the conclusion I came up with
> after some discussion with David Hildenbrand on what methods should be used for
> allocating gigantic pages[2], since other approaches like using CMA allocator or
> alloc_contig_pages() are regarded as suboptimal.

I see references [1] [2] etc but no list of links at the end, did you
forgot to include?

\
 
 \ /
  Last update: 2021-08-06 18:33    [W:0.246 / U:0.104 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site