Hi Adrian,
On 12/7/22 11:04, Adrian Zaugg wrote:
Hi Aitor
In der Nachricht vom Tuesday, 12 July 2022 01:20:10 CEST steht:
You can find these files in the subdirectories:
/sys/devices/system/node/node0/hugepages/hugepages-*/
The path you gave is per numa node. It is possible to set different numbers of
hugepages on each numa node. The per system information is here:
/sys/kernel/mm/hugepages/hugepages-*/nr_hugepages
(or in /proc/meminfo)
Read the paragraph "Per Node Huge Pages Attributes" in the link:
https://github.com/torvalds/linux/blob/master/Documentation/admin-guide/mm/hugetlbpage.rst
<https://github.com/torvalds/linux/blob/master/Documentation/admin-guide/mm/hugetlbpage.rst>
saying:
[...]
A subset of the contents of the root huge page control directory in sysfs,
described above, will be *replicated* under each the system device of each
NUMA node with memory in:
/sys/devices/system/node/node[0-9]*/hugepages/
[...]
The root huge page control directory in `sysfs` is:
/sys/kernel/mm/hugepages
For each huge page size supported by the running kernel, a subdirectory
will exist, of the form:
hugepages-${size}kB
And you'll find the same subdirectories replicated among the numa nodes with
memory in:
/sys/devices/system/node/node[0-9]*/hugepages/
Cheers,
Aitor.
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