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top中使用CPU或MEM排序，还是看不到我们想了解的进程的相关信息；. Q4 e3 m1 i4 y5 R. B& y
这时就可以指定对某个或某些进程进行TOP信息显示；1 R4 a3 x# F0 ~" |# ]
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" E8 ^9 m' e2 p9 W' L1、查看某个进程的信息" g: v0 f7 ]: u9 ^4 V' n! r
例：mysqld的信息
" N4 G# [ y& S+ U( D(1)得到mysqld进程的pid8 `9 M8 `! \+ w* V' J! W
[root@6 ~]# pidof mysqld
: D5 x1 m! E h21538
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7 l0 ~% t/ F6 w, d(2)top指定查看PID$ u: w7 G v- I, J
[root@6 ~]# top -p 21538
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top - 09:15:06 up 30 days, 53 min, 3 users, load average: 0.07, 0.22, 0.23& e. n, ?+ ]9 U: K
Tasks: 1 total, 0 running, 1 sleeping, 0 stopped, 0 zombie
, C6 m0 w6 s& T! d# uCpu(s): 3.0%us, 6.9%sy, 0.2%ni, 89.4%id, 0.3%wa, 0.1%hi, 0.1%si, 0.0%st
. X" X- U2 N" qMem: 1035140k total, 994888k used, 40252k free, 383072k buffers
' g9 e, d; h5 kSwap: 2048248k total, 80k used, 2048168k free, 237456k cached
8 M5 G7 Q. q D7 q% }' V4 m
c; a. p; W' W/ P PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6 p) x' {4 v% D7 |21538 mysql 15 0 146m 21m 4372 S 0.0 2.1 3:03.84 mysqld
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' c6 N: f2 U1 d% w! X2、查看某些进程的信息
6 o t1 w- ~; c& U1 g6 E. F, u例：mysqld/httpd的信息4 _3 p0 x8 ~. R
(1)得到mysqld/httpd进程的pid' ~* ]6 }/ m9 p& ~6 ^! i/ v
[root@6 ~]# pidof mysqld1 _# Z: g# N$ e- R" x+ y
215384 C. k& t) o. |0 l4 T( _' D+ Q
( _0 p [% }1 Q6 o* U* L, I0 l[root@6 ~]# pidof httpd
0 ^" H$ c# j- S3 n5 b0 e* ?31117 31116 31115 31114
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* i6 T. g. W" u3 b8 b+ i" h(2)top指定查看PID ]! e+ x. @: f8 y* ]# G
[root@6 ~]# top -p 21538,31117,31116,31115,31114+ S. O9 x5 V; z0 b- j
3 F1 E* b# Z: i6 N% T1 d5 t! ]top - 09:20:05 up 30 days, 58 min, 3 users, load average: 0.37, 0.24, 0.23
0 F7 X! m9 J" q2 F: ^: k* q9 GTasks: 5 total, 0 running, 5 sleeping, 0 stopped, 0 zombie
/ L; K2 R$ r1 dCpu(s): 3.0%us, 6.9%sy, 0.2%ni, 89.4%id, 0.3%wa, 0.1%hi, 0.1%si, 0.0%st
& U4 n: F9 Q; l4 j W4 ]/ FMem: 1035140k total, 994364k used, 40776k free, 383404k buffers4 m$ m9 A. b' V5 l
Swap: 2048248k total, 80k used, 2048168k free, 237560k cached
$ Z! L$ B6 I# o# k2 d% ~ \( _+ N/ z7 K. o. J4 P7 t/ G3 R0 A1 R
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 5 G$ C* i$ c- W
21538 mysql 15 0 146m 21m 4372 S 0.0 2.1 3:03.86 mysqld
5 U; n& @5 O( n e9 b- k; @31117 apache 15 0 60036 8428 4668 S 0.0 0.8 0:00.48 httpd $ `) ?3 D6 p& _, D' r
31116 apache 15 0 60308 9.9m 6288 S 0.0 1.0 0:00.48 httpd
5 r6 g" ?7 n: W1 N& d$ b31115 apache 15 0 60100 8552 4756 S 0.0 0.8 0:00.48 httpd
# {! v* q$ x) b& j31114 apache 15 0 59892 6452 3060 S 0.0 0.6 0:00.41 httpd 0 `9 W6 I( e, p9 D/ F6 \9 \. _
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发表于 2019-11-21 16:32:41