With running VPP you can do:
$ grep huge /proc/$(pgrep vpp)/numa_maps
1000000000 default file=/memfd:buffers-numa-0\040(deleted) huge dirty=19 N0=19
kernelpagesize_kB=2048
1002600000 default file=/memfd:buffers-numa-1\040(deleted) huge dirty=19 N1=19
kernelpagesize_kB=2048
1004c00000 default file=/anon_hugepage\040(deleted) huge anon=1 dirty=1 N1=1
kernelpagesize_kB=2048
1st line - 19 2048K memfd backed hugepages on numa 0
2nd line - 19 2048K memfd backed hugepages on numa 1
3rd line - one 2048K anonymous hugepage on numa 1
first two are buffer pool memory, 3rd one is likely some physmem used by native
driver
If you add to startup.conf:
memory {
main-heap-page-size 1G
}
$grep huge /proc/$(pgrep vpp)/numa_maps
1000000000 default file=/memfd:buffers-numa-0\040(deleted) huge dirty=19 N0=19
kernelpagesize_kB=2048
1002600000 default file=/memfd:buffers-numa-1\040(deleted) huge dirty=19 N1=19
kernelpagesize_kB=2048
1004c00000 default file=/anon_hugepage\040(deleted) huge anon=1 dirty=1 N1=1
kernelpagesize_kB=2048
7fbc00000000 default file=/anon_hugepage\040(deleted) huge anon=1 dirty=1 N1=1
kernelpagesize_kB=1048576
last line is main heap allocated as single anonymous 1G hugepage.
VPP is not using filesystem backed hugepages so you will not find anything in
/var/run/huge….
—
Damjan
> On 21.09.2021., at 20:11, Mohsen Meamarian <meamarian.moh...@gmail.com> wrote:
>
> Hi,
> Thanks, Is there a way to make sure how many Hugespages are ready to Vpp
> using? Immediately after Start Vpp, I open the "/ run / vpp / hugepages "
> file but it is empty. Is the VPP mechanism to occupy the Hugepage if needed
> or does Vpp reserve it for itself from the beginning?
>
>
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