cat /proc/meminfo

2G现代DDR2内存：
$ cat /proc/meminfo
MemTotal:        2005640 kB
MemFree:         1859936 kB
Buffers:           14888 kB
Cached:            68200 kB
SwapCached:            0 kB
Active:            45564 kB
Inactive:          72744 kB
Active(anon):      35544 kB
Inactive(anon):        0 kB
Active(file):      10020 kB
Inactive(file):    72744 kB
Unevictable:           0 kB
Mlocked:               0 kB
HighTotal:       1122184 kB
HighFree:        1008120 kB
LowTotal:         883456 kB
LowFree:          851816 kB
SwapTotal:        514040 kB
SwapFree:         514040 kB
Dirty:               188 kB
Writeback:             0 kB
AnonPages:         35216 kB
Mapped:            11816 kB
Shmem:               328 kB
Slab:               7300 kB
SReclaimable:       2884 kB
SUnreclaim:         4416 kB
KernelStack:         416 kB
PageTables:          380 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     1516860 kB
Committed_AS:      52476 kB
VmallocTotal:     122880 kB
VmallocUsed:       53536 kB
VmallocChunk:      58364 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       4096 kB
DirectMap4k:       28664 kB
DirectMap4M:      880640 kB