Hi everybody,
It is very confusing to check numa disable and I got different results.
[root@localhost ~]# dmesg | grep -i numa
[ 0.120889] No NUMA configuration found <<--- shows NUMA config disabled
[root@localhost ~]# find /proc -name numa_maps
/proc/1/task/1/numa_maps <<----- seems like NUMA is enabled, so many tasks
/proc/1/numa_maps
/proc/2/task/2/numa_maps
/proc/2/numa_maps
/proc/3/task/3/numa_maps
/proc/3/numa_maps
…...
[root@localhost ~]# grep NUMA=y /boot/config-`uname -r`
CONFIG_NUMA=y <<--- confusing, NUMA enabled ?
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_ACPI_NUMA=y
I already explicity set numa to disabled and grub again, reboot twice after that
in /etc/default/grub
GRUB_CMDLINE_LINUX="crashkernel=auto resume=/dev/mapper/ol-swap rd.lvm.lv=ol/root rd.lvm.lv=ol/swap rhgb quiet numa=off" <<--- set NUMA OFF
grub2-mkconfig -o /boot/grub2/grub.cfg
Please advise how to check if numa is disabled.
Thanks