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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；- `" Q- J$ J# Z7 x
这时就可以指定对某个或某些进程进行TOP信息显示；0 W6 Q; M2 Z1 d) _% h
. U3 _* O3 N9 t2 M3 @( A+ ?
/ t0 ~2 B" Z4 M0 u1、查看某个进程的信息
% E$ D8 S7 y% Y例：mysqld的信息
9 h6 J0 m3 L) R(1)得到mysqld进程的pid8 ?% S) }5 H' ]- n
[root@6 ~]# pidof mysqld
, k+ ?! ~4 o2 U% q; Z& x21538; f) A( ?" V1 ^3 O: }' B
3 d1 n% W, q" Q) @4 m(2)top指定查看PID
' j4 i0 F/ i/ E+ l% Q6 I6 r[root@6 ~]# top -p 215384 G2 h+ z5 C- Y% e* Q
& G6 l) M: D2 m5 J: xtop - 09:15:06 up 30 days, 53 min, 3 users, load average: 0.07, 0.22, 0.237 V9 [0 M4 N, |9 ?$ b) m
Tasks: 1 total, 0 running, 1 sleeping, 0 stopped, 0 zombie
4 a1 n2 d1 E4 K% ?" ~/ I0 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: ]7 |) {; _4 H( Q: x! _' A
Mem: 1035140k total, 994888k used, 40252k free, 383072k buffers# o( c( D& `% M. ^( C/ j% z
Swap: 2048248k total, 80k used, 2048168k free, 237456k cached% x4 ^7 ]- b' H" W0 O
& d& _1 f$ t# d# v1 [9 ? PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 9 n" P3 [9 I4 y
21538 mysql 15 0 146m 21m 4372 S 0.0 2.1 3:03.84 mysqld' X e# z1 k7 D A$ H
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9 o: f. C* v/ A: [7 W+ M, L2、查看某些进程的信息5 N$ o/ }" q: q: A8 `7 c
例：mysqld/httpd的信息
" {8 K8 I. {% c+ ]* b( c" l(1)得到mysqld/httpd进程的pid7 b% @3 s: r8 X6 _- K5 O n
[root@6 ~]# pidof mysqld4 _3 C, Y( M: v
21538. y, I8 e: o% N
$ V: L7 c3 T% Q. f, y5 F; n4 @[root@6 ~]# pidof httpd# a: p' X- E$ y% N
31117 31116 31115 31114
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, y$ ?: l$ E: D( @% L(2)top指定查看PID$ [2 m6 t3 d! s. H! j4 {$ _
[root@6 ~]# top -p 21538,31117,31116,31115,31114
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, \" V5 B& U' ftop - 09:20:05 up 30 days, 58 min, 3 users, load average: 0.37, 0.24, 0.237 T0 t" W5 }; {% B
Tasks: 5 total, 0 running, 5 sleeping, 0 stopped, 0 zombie$ s4 D: Z5 h- {0 B$ l2 g
Cpu(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
2 v8 N) \" v9 ZMem: 1035140k total, 994364k used, 40776k free, 383404k buffers. i+ K. W- [5 J! B+ e" h% x) ?8 q h
Swap: 2048248k total, 80k used, 2048168k free, 237560k cached6 W+ r: X: D% \0 h+ D3 K+ J
6 ]" F0 g. C, M# ?% ~* f
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4 v# M1 L# E% U+ F6 t21538 mysql 15 0 146m 21m 4372 S 0.0 2.1 3:03.86 mysqld ; i$ F: E* l$ p: l
31117 apache 15 0 60036 8428 4668 S 0.0 0.8 0:00.48 httpd 5 |/ {1 h- @' r
31116 apache 15 0 60308 9.9m 6288 S 0.0 1.0 0:00.48 httpd
+ L2 _) }# q3 A! N! @; J8 I3 M31115 apache 15 0 60100 8552 4756 S 0.0 0.8 0:00.48 httpd 1 Y4 N( p: K: f- Z
31114 apache 15 0 59892 6452 3060 S 0.0 0.6 0:00.41 httpd # `7 q. b I* ]7 G5 E/ j
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发表于 2019-11-21 16:32:41