Solved Disable transparenthugepage

[solidsnake]

I am trying to disable transparent hugepage on the server.

in the following command output it says to add transparent_hugepage=never".

When I ran this command, the UUID part did not come as follows. So I did some research and found that it belongs to the swap directory so I added it (I think I made a mistake)

[root@dataserver~]# cat /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="resume=UUID=94279fa2-b457-46c9-b782-6a60a76416e2 rhgb quiet transparent_hugepage=never"
GRUB_CMDLINE_LINUX="rhgb quiet"
GRUB_DISABLE_RECOVERY="true"

cat /sys/kernel/mm/transparent_hugepage/enabled

when I run this command I get the following output.

[always] madvise never

In order for the setting to be made correctly, it should come as follows.

always madvise [never]

Where do I need to delete or add parameters in the output below?

[root@dataserver~]# cat /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="resume=UUID=94279fa2-b457-46c9-b782-6a60a76416e2 rhgb quiet transparent_hugepage=never"
GRUB_CMDLINE_LINUX="rhgb quiet"
GRUB_DISABLE_RECOVERY="true"

 

[Aristarchus]

Maybe try
vm.nr_hugepages=
parameter

 

[osprey]

I am trying to disable transparent hugepage on the server.



In order for the setting to be made correctly, it should come as follows.

always madvise [never]

Where do I need to delete or add parameters in the output below?

The kernel docs suggest the following:

Transparent Hugepage Support for anonymous memory can be entirely disabled
(mostly for debugging purposes) or only enabled inside MADV_HUGEPAGE
regions (to avoid the risk of consuming more memory resources) or enabled
system wide. This can be achieved with one of::

echo always >/sys/kernel/mm/transparent_hugepage/enabled
echo madvise >/sys/kernel/mm/transparent_hugepage/enabled
echo never >/sys/kernel/mm/transparent_hugepage/enabled

Those settings should be able to be set in /etc/sysctl.conf using the format which that file requires which is evident from the settings already present in the file.

 

[solidsnake]

The kernel docs suggest the following:

Those settings should be able to be set in /etc/sysctl.conf using the format which that file requires which is evident from the settings already present in the file.

i do this step and now the never option seems to be selected.

cat /sys/kernel/mm/transparent_hugepage/enabled

always madvise [never]

I'm not really sure if it happened

 

[osprey]

i do this step and now the never option seems to be selected.

cat /sys/kernel/mm/transparent_hugepage/enabled

always madvise [never]

I'm not really sure if it happened

It looks like the setting has been set from that output. Presumably we have to trust the kernel.

 

[solidsnake]

It looks like the setting has been set from that output. Presumably we have to trust the kernel.

After restarting the server, it went back to what it was before.

I did the same on 3 servers but I don't understand why this happened on this server?

 

[f33dm3bits]

in the following command output it says to add transparent_hugepage=never".

After adding that to your grub configuration you need to update you grub, by running the following, path may differ depending on what distribution you are using.

grub2-mkconfig -o /boot/grub2/grub.cfg (BIOS)
grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg (UEFI)

Then reboot your system.

 

[solidsnake]

Bunu grup yapılandırmanıza ekledikten sonra grubunuzu güncellemeniz gerekir, aşağıdakileri çalıştırarak yol, kullandığınız dağıtıma bağlı olarak farklılık gösterebilir.
[KOD]
grub2-mkconfig -o /boot/grub2/grub.cfg (BIOS)
grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg (UEFI)
[/KOD]
Daha sonra sisteminizi yeniden başlatın.

thanks for the advice

I was using an efi system and I didn't think that the settings for the efi system could be different.

One thing that confuses me is that on my system there is nothing in the GROUP_CMDLINE_LINUX parameter.

On my other systems it says "Maintain UUID" and usually the UUID number of the swap space comes up.
GRUB_CMDLINE_LINUX=continue=UUUID=

 

[f33dm3bits]

This is an English speaking forum, please reply in English I don't understand your latest reply?