Here is what I get with " cat /proc/meminfo"

        total:    used:    free:  shared: buffers:  cached:
Mem:  492314624 482639872  9674752        0 69799936 347586560
Swap: 1077501952  4415488 1073086464
MemTotal:       480776 kB
MemFree:          9448 kB
MemShared:           0 kB
Buffers:         68164 kB
Cached:         338084 kB
SwapCached:       1356 kB
Active:         124832 kB
ActiveAnon:       2096 kB
ActiveCache:    122736 kB
Inact_dirty:         0 kB
Inact_laundry:  276640 kB
Inact_clean:      6888 kB
Inact_target:    81672 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       480776 kB
LowFree:          9448 kB
SwapTotal:     1052248 kB
SwapFree:      1047936 kB