top命令可以查看进程内存的使用，但是不够详细。还有一些命令可以进行更加详细的查看。 [root@localhost ~]# cat /proc/5606/status Name:   switch4 State:  S (sleeping) Tgid:   5606 Pid:    5606 PPid:   1 TracerPid:      0 Uid:    0       0       0       0 Gid:    0       0       0       0 Utrace: 0 FDSize: 32 Groups: 0 1 2 3 4 6 10 VmPeak:    85328 kB VmSize:    84308 kB——进程占用的虚拟内存大小。 VmLck:         0 kB VmHWM:     46368 kB VmRSS:     46360 kB——占用的物理内存。 VmData:    76512 kB——data段内存大小（BSS，data） VmStk:        88 kB——栈大小。 VmExe:       312 kB——代码段大小。 VmLib:      6868 kB——库大小 VmPTE:       148 kB VmSwap:        0 kB Threads:        4 SigQ:   1/31237 SigPnd: 0000000000000000 ShdPnd: 0000000000000000 SigBlk: 0000000000000000 SigIgn: 0000000000000005 SigCgt: 0000000180005202 CapInh: 0000000000000000 CapPrm: ffffffffffffffff CapEff: ffffffffffffffff CapBnd: ffffffffffffffff Cpus_allowed:   ff Cpus_allowed_list:      0-7 Mems_allowed:   1 Mems_allowed_list:      0 voluntary_ctxt_switches:        116683469 nonvoluntary_ctxt_switches:     301173 [root@localhost ~]# cat /proc/5627/smaps 00110000-00112000 r-xp 00000000 08:02 652817     /home/mic_lib_2012-04-21-03-16-32/libdb.so Size:                  8 kB Rss:                   8 kB Pss:                   1 kB Shared_Clean:          8 kB Shared_Dirty:          0 kB Private_Clean:         0 kB Private_Dirty:         0 kB Referenced:            8 kB Swap:                  0 kB KernelPageSize:        4 kB MMUPageSize:           4 kB 00112000-00113000 rw-p 00001000 08:02 652817     /home/mic_lib_2012-04-21-03-16-32/libdb.so Size:                  4 kB Rss:                   4 kB Pss:                   4 kB Shared_Clean:          0 kB Shared_Dirty:          0 kB Private_Clean:         0 kB Private_Dirty:         4 kB Referenced:            4 kB Swap:                  0 kB KernelPageSize:        4 kB MMUPageSize:           4 kB 08048000-080a2000 r-xp 00000000 08:02 1044485    /home/execute_2012-04-21-03-16-32/mrfc Size:                360 kB——虚拟内存 Rss:                 156 kB——物理内存 Pss:                 156 kB Shared_Clean:          0 kB——共享部分，动态链接库 Shared_Dirty:          0 kB Private_Clean:       156 kB——私有部分。 Private_Dirty:         0 kB Referenced:          156 kB Swap:                  0 kB KernelPageSize:        4 kB MMUPageSize:           4 kB 09f43000-09f87000 rw-p 00000000 00:00 0          [heap]——堆的内存 Size:                272 kB Rss:                 184 kB Pss:                 184 kB Shared_Clean:          0 kB Shared_Dirty:          0 kB Private_Clean:         0 kB Private_Dirty:       184 kB Referenced:          184 kB Swap:                  0 kB KernelPageSize:        4 kB MMUPageSize:           4 kB b6cfc000-b6cfd000 ---p 00000000 00:00 0 Size:                  4 kB Rss:                   0 kB Pss:                   0 kB Shared_Clean:          0 kB Shared_Dirty:          0 kB Private_Clean:         0 kB Private_Dirty:         0 kB Referenced:            0 kB Swap:                  0 kB KernelPageSize:        4 kB MMUPageSize:           4 kB b6cfd000-b7703000 rw-p 00000000 00:00 0 Size:              10264 kB Rss:                  28 kB Pss:                  28 kB Shared_Clean:          0 kB Shared_Dirty:          0 kB Private_Clean:         0 kB Private_Dirty:        28 kB Referenced:           28 kB Swap:                  0 kB KernelPageSize:        4 kB MMUPageSize:           4 kB b7714000-b7716000 rw-p 00000000 00:00 0 Size:                  8 kB Rss:                   8 kB Pss:                   8 kB Shared_Clean:          0 kB Shared_Dirty:          0 kB Private_Clean:         0 kB Private_Dirty:         8 kB Referenced:            8 kB Swap:                  0 kB KernelPageSize:        4 kB MMUPageSize:           4 kB bfed4000-bfee9000 rw-p 00000000 00:00 0          [stack]——栈的内存。 Size:                 88 kB Rss:                  44 kB Pss:                  44 kB Shared_Clean:          0 kB Shared_Dirty:          0 kB Private_Clean:         0 kB Private_Dirty:        44 kB Referenced:           44 kB Swap:                  0 kB KernelPageSize:        4 kB MMUPageSize:           4 kB