meminfo - before tweak
MemTotal: 4046776 kB
MemFree: 1322660 kB
Buffers: 115436 kB
Cached: 356508 kB
SwapCached: 28928 kB
Active: 1618840 kB
Inactive: 749088 kB
Active(anon): 1159448 kB
Inactive(anon): 748608 kB
Active(file): 459392 kB
Inactive(file): 480 kB
Unevictable: 31480 kB
Mlocked: 31480 kB
SwapTotal: 4132860 kB
SwapFree: 3920304 kB
Dirty: 160 kB
Writeback: 0 kB
AnonPages: 1902788 kB
Mapped: 227852 kB
Shmem: 6052 kB
Slab: 91548 kB
SReclaimable: 57052 kB
SUnreclaim: 34496 kB
KernelStack: 4392 kB
PageTables: 47908 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 6156248 kB
Committed_AS: 6376096 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 120012 kB
VmallocChunk: 34359610876 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 970752 kB
DirectMap2M: 3221504 kB