Re: No free hugepages reported

[Lokesh Chakka <lvenkatakumarchakka@gmail.com>]

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hi Stephen,

Thanks for the reply. Following is the observation...

*************************************************************
$ dpdk-hugepages.py -s
Node Pages Size Total
2    512   2Mb    1Gb
6    512   2Mb    1Gb

Hugepages mounted on /dev/hugepages /mnt/huge

$ sudo dpdk-hugepages.py -p 1G --setup 2G
Unable to set pages (0 instead of 2 in
/sys/devices/system/node/node4/hugepages/hugepages-1048576kB/nr_hugepages).
*************************************************************


Regards
--
Lokesh Chakka.


On Mon, Apr 1, 2024 at 12:36 AM Stephen Hemminger <
stephen@networkplumber.org> wrote:

> On Sun, 31 Mar 2024 16:28:19 +0530
> Lokesh Chakka <lvenkatakumarchakka@gmail.com> wrote:
>
> > Hello,
> >
> > I've installed dpdk in Ubuntu 23.10 with the command "sudo apt -y install
> > dpdk*"
> >
> > added  "nodev /mnt/huge hugetlbfs pagesize=1GB 0 0" in /etc/fstab
> > added "vm.nr_hugepages=1024" in /etc/sysctl.conf
> >
> > rebooted the machine and then did devbind using the following command:
> >
> > sudo modprobe vfio-pci && sudo dpdk-devbind.py --bind=vfio-pci 63:00.0
> > 63:00.1
> >
> > Huge page info is as follows :
> >
> > *************************************************
> > $ cat /proc/meminfo | grep Huge
> > AnonHugePages:      6144 kB
> > ShmemHugePages:        0 kB
> > FileHugePages:         0 kB
> > HugePages_Total:    1024
> > HugePages_Free:     1023
> > HugePages_Rsvd:        0
> > HugePages_Surp:        0
> > Hugepagesize:       2048 kB
> > Hugetlb:         2097152 kB
> > *************************************************
>
> Your hugepages are not setup correctly. The mount is for 1G pages
> and the sysctl entry makes 2M pages.
>
> Did you try using the dpdk-hugepages script?
>

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