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
