On 06.10.21 10:16, Hao Peng wrote:
On Thu, Sep 30, 2021 at 9:19 PM David Hildenbrand <david@xxxxxxxxxx> wrote:
On 30.09.21 04:14, Hao Peng wrote:
From: Peng Hao <flyingpeng@xxxxxxxxxxx>
"disable thp if thp page size is too large" you disable thp if there is
not sufficient memory installed in the system (and for that, you use THP
size), something doesn't add up here.
In addition, if THP is enabled, min_free_kbytes will be recalculated.
At this time,
min_free_kbytes is calculated based on the size of THP. If the size of
THP is too l
arge, OOM will easily be triggered.
Right, I was pointing at the misleading $subject. What about something like:
"mm/huge_memory: disable THP with large THP size on small present memory" ?
After seting the page size to 64k on ARM64, the supported huge page
s/seting/setting/
Fortunately, most distributions already switched to 4k, because 512MB
THP is pretty much useless, especially on any system that doesn't have
memory in the range of hundreds of megabytes or terrabytes.
But the ARM64 Server distribution version I use, such as CentOS for ARM64,
has a page size of 16KB or 64KB.
Yeah, RHEL8 and CENTOS8 are the last remaining "recent distirbutions"
I'm aware of.
--
Thanks,
David / dhildenb
