ulimit --------------
data seg size (kbytes, -d) unlimited
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 206129
stack size (kbytes, -s) 2048 #This ALSO affects -Xss !!!
max user processes (-u) 16379
virtual memory (kbytes, -v) unlimited
/etc/sysctl.com --------------------
vm.nr_hugepages=1790
kernel.shmmax=3758096384
kernel.shmall=3758096384
#don't forget to do:
# mkdir /mnt/hugepages
# mount -t hugetlbfs nodev /mnt/hugepages
# chmod 777 /mnt/hugepages
/ect/fstab
none /dev/shm tmpfs defaults,size=4G 0 0
Validation:
cat /proc/meminfo | grep Huge
HugePages_Total: 1790
HugePages_Free: 462
Hugepagesize: 2048 kB
cat /proc/mounts
none /dev/shm tmpfs rw 0 0
nodev /mnt/hugepages hugetlbfs rw 0 0