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# calculate vm.nr_hugepages (128Gb mem minus 5% for system: # echo $¹⁾ # 62225 vm.nr_hugepages = 62225 # # memlock calculate: # grep Hugepagesize /proc/meminfo # Hugepagesize: 2048 kB # echo $²⁾ # 127436800 # /etc/security/limits.conf: # qemu soft memlock 127436800 # qemu hard memlock 127436800 # # determine vm.hugetlb_shm_group: # cat /etc/passwd | grep «qemu» # qemu:x:107:107:qemu user:/:/sbin/nologin vm.hugetlb_shm_group = 107 # # calculate kernel.shmall for 128Gb mem minus 5% for system: # getconf PAGE_SIZE # 4096 # echo $³⁾ # 31876710 kernel.shmall = 31876710 # # calculate kernel.shmall for 128Gb mem minus 5% for system: # echo $⁴⁾ kernel.shmmax = 130567005730