[root@bob ~]# cat /proc/meminfo
MemTotal:        3863540 kB
MemFree:          305168 kB
MemAvailable:    2893580 kB
Buffers:            1036 kB
Cached:          1986428 kB
SwapCached:        12240 kB
Active:          1045528 kB
Inactive:        1006008 kB
Active(anon):     168660 kB
Inactive(anon):   125368 kB
Active(file):     876868 kB
Inactive(file):   880640 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:       3907580 kB
SwapFree:        3817212 kB
Dirty:                32 kB
Writeback:             0 kB
AnonPages:         52840 kB
Mapped:            23488 kB
Shmem:            229956 kB
Slab:            1294848 kB
SReclaimable:    1119996 kB
SUnreclaim:       174852 kB
KernelStack:        5536 kB
PageTables:        12744 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     5839348 kB
Committed_AS:    1032988 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      186412 kB
VmallocChunk:   34359310332 kB
HardwareCorrupted:     0 kB
AnonHugePages:      6144 kB
CmaTotal:              0 kB
CmaFree:               0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      120640 kB
DirectMap2M:     3024896 kB
DirectMap1G:     3145728 kB
[root@bob ~]# sysctl -a | grep vm
sysctl: reading key "net.ipv6.conf.all.stable_secret"
sysctl: reading key "net.ipv6.conf.default.stable_secret"
sysctl: reading key "net.ipv6.conf.ens160.stable_secret"
sysctl: reading key "net.ipv6.conf.lo.stable_secret"
sysctl: reading key "net.ipv6.conf.virbr0-nic.stable_secret"
vm.admin_reserve_kbytes = 8192
vm.block_dump = 0
vm.dirty_background_bytes = 0
vm.dirty_background_ratio = 10
vm.dirty_bytes = 0
vm.dirty_expire_centisecs = 3000
vm.dirty_ratio = 30
vm.dirty_writeback_centisecs = 500
vm.drop_caches = 3
vm.extfrag_threshold = 500
vm.hugepages_treat_as_movable = 0
vm.hugetlb_shm_group = 0
vm.laptop_mode = 0
vm.legacy_va_layout = 0
vm.lowmem_reserve_ratio = 256   256     32
vm.max_map_count = 65530
vm.memory_failure_early_kill = 0
vm.memory_failure_recovery = 1
vm.min_free_kbytes = 67584
vm.min_slab_ratio = 5
vm.min_unmapped_ratio = 1
vm.mmap_min_addr = 4096
vm.mmap_rnd_bits = 28
vm.mmap_rnd_compat_bits = 8
vm.nr_hugepages = 0
vm.nr_hugepages_mempolicy = 0
vm.nr_overcommit_hugepages = 0
vm.nr_pdflush_threads = 0
vm.numa_zonelist_order = default
vm.oom_dump_tasks = 1
vm.oom_kill_allocating_task = 0
vm.overcommit_kbytes = 0
vm.overcommit_memory = 0
vm.overcommit_ratio = 50
vm.page-cluster = 3
vm.panic_on_oom = 0
vm.percpu_pagelist_fraction = 0
vm.stat_interval = 1
vm.swappiness = 30
vm.user_reserve_kbytes = 116964
vm.vfs_cache_pressure = 100
vm.zone_reclaim_mode = 0