linux进程内存占用排序命令

linux进程内存占用排序命令

 

今天查看linux服务器，想查看各个进程的占用率，就使用：

 

[qhkf@116share ~]$ top

 

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

29613 build 15 0 158m 7136 3720 S 2.0 0.1 0:00.27 svn

29609 build 15 0 158m 7132 3720 S 2.3 0.1 0:00.70 svn

29601 qhkf 15 0 12868 1260 820 R 0.3 0.0 0:00.09 top

29598 oracle 15 0 1935m 15m 13m S 0.0 0.2 0:00.00 oracle

29596 oracle 15 0 1936m 27m 24m S 0.0 0.3 0:00.03 oracle

29582 qhkf 15 0 102m 3420 2252 S 0.0 0.0 0:00.04 vim

29506 build 15 0 158m 7252 3724 S 2.3 0.1 0:03.76 svn

但是没有按照内存排序，然后查了下，按一下shift + f 就可以出现排序的列

 

Current Sort Field: N for window 1:Def

Select sort field via field letter, type any other key to return

 

  a: PID = Process Id shown due to screen width or your

  b: PPID = Parent Process Pid field order, the '<' and '>' keys

  c: RUSER = Real user name will be unavailable until a field

  d: UID = User Id within viewable range is chosen.

  e: USER = User Name

  f: GROUP = Group Name Note2:

  g: TTY = Controlling Tty Field sorting uses internal values,

  h: PR = Priority not those in column display. Thus,

  i: NI = Nice value the TTY & WCHAN fields will violate

  j: P = Last used cpu (SMP) strict ASCII collating sequence.

  k: %CPU = CPU usage (shame on you if WCHAN is chosen)

  l: TIME = CPU Time

  m: TIME+ = CPU Time, hundredths

* N: %MEM = Memory usage (RES)

  o: VIRT = Virtual Image (kb)

  p: SWAP = Swapped size (kb)

  q: RES = Resident size (kb)

  r: CODE = Code size (kb)

  s: DATA = Data+Stack size (kb)

  t: SHR = Shared Mem size (kb)

  u: nFLT = Page Fault count

  v: nDRT = Dirty Pages count

  w: S = Process Status

  x: COMMAND = Command name/line

  y: WCHAN = Sleeping in Function

  z: Flags = Task Flags <sched.h>

然后就可以选择自己喜欢的排序方式啦，例如选择N，看看那几个进程占用的内存大，接下来就可以分析啦

 

PID   USER   PR NI VIRT RES SHR   S %CPU%MEM TIME+  COMMAND

14101 oracle 15 0 1941m 613m 608m S 0.0 7.7 2:25.78 oracle

14095 oracle 15 0 1987m 521m 477m S 0.0 6.5 2:24.58 oracle

20477 oracle 15 0 1945m 483m 478m S 0.0 6.1 0:24.79 oracle

14522 oracle 15 0 1941m 427m 420m S 0.0 5.4 2:20.59 oracle

14105 oracle 15 0 1941m 268m 262m S 0.0 3.4 3:46.04 oracle