who can help me save my memory?

hippo,Thanks you a lot.

this the result:

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nios flatforum[/b]

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:

# cat /proc/74/status
Name:   pppd
State:  S (sleeping)
SleepAVG:       87%
Tgid:   74
Pid:    74
PPid:   64
TracerPid:      0
Uid:    0       0       0       0
Gid:    0       0       0       0
FDSize: 32
Groups:
Mem:      544160 bytes
Slack:    229815 bytes
Shared:        0 bytes
Threads:        1
SigPnd: 0000000000000000
ShdPnd: 0000000000000000
SigBlk: 0000000000000000
SigIgn: 0000000000081006
SigCgt: 0000000057816ef9
CapInh: 0000000000000000
CapPrm: 00000000fffffeff
CapEff: 00000000fffffeff#  cat /proc/74/statm
1065672 1065672 0 146416 0 377528 0

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arm platform[/b]

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# cat /proc/65/status
Name:   pppd
State:  S (sleeping)
Tgid:   65
Pid:    65
PPid:   44
TracerPid:      0
Uid:    0       0       0       0
Gid:    0       0       0       0
FDSize: 32
Groups:
Mem:      239584 bytes
Slack:      1292 bytes
Shared:        0 bytes
SigPnd: 0000000000000000
SigBlk: 0000000000000000
SigIgn: 0000000000081006
SigCgt: 0000000057816ef9
CapInh: 0000000000000000
CapPrm: 00000000fffffeff
CapEff: 00000000fffffeff#  cat /proc/65/statm
113 113 0 37 0 20 0