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linux如何讀系統(tǒng)進(jìn)行監(jiān)控

系統(tǒng)監(jiān)控的概念

系統(tǒng)監(jiān)控是指通過(guò)對(duì)系統(tǒng)的運(yùn)行狀態(tài)、性能指標(biāo)、資源使用情況等進(jìn)行實(shí)時(shí)監(jiān)測(cè)和分析,以便及時(shí)發(fā)現(xiàn)和解決系統(tǒng)中存在的問(wèn)題,提高系統(tǒng)的穩(wěn)定性和可靠性,在Linux系統(tǒng)中,有許多工具可以幫助我們進(jìn)行系統(tǒng)監(jiān)控,如top、htop、vmstat、iostat、sar等,本文將介紹如何使用這些工具對(duì)Linux系統(tǒng)進(jìn)行監(jiān)控。

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使用top進(jìn)行系統(tǒng)監(jiān)控

1、top命令簡(jiǎn)介

top命令是Linux系統(tǒng)中一個(gè)非常實(shí)用的實(shí)時(shí)進(jìn)程監(jiān)控工具,可以實(shí)時(shí)顯示系統(tǒng)中各個(gè)進(jìn)程的資源占用情況,如CPU、內(nèi)存、磁盤I/O等,通過(guò)觀察top命令的輸出結(jié)果,我們可以了解到系統(tǒng)的運(yùn)行狀況,從而對(duì)系統(tǒng)進(jìn)行優(yōu)化。

2、基本使用方法

在終端中輸入top命令,即可進(jìn)入top界面,在top界面中,可以看到系統(tǒng)中各個(gè)進(jìn)程的資源占用情況,如下所示:

top 17:34:06 up 1 day, 3:30, 1 user, load average: 0.00, 0.01, 0.05

Tasks: 244 total, 1 running, 243 sleeping, 0 stopped, 0 zombie

%Cpu(s): 0.3 us, 0.0 sy, 0.0 ni,99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st

MiB Mem : 1024.0 total, 816.7 free, 175.3 used, 866.0 buff/cache

MiB Swap: 2048.0 total, 2048.0 free, 0.0 used. 2568.4 avail Mem

3、top命令選項(xiàng)說(shuō)明

-d:設(shè)置刷新間隔時(shí)間,單位為秒。top -d 5表示每隔5秒刷新一次。

-p:指定要監(jiān)控的進(jìn)程ID。top -p 1234表示只監(jiān)控進(jìn)程ID為1234的進(jìn)程。

-u:指定要監(jiān)控的用戶。top -u root表示只監(jiān)控root用戶的進(jìn)程。

-n:設(shè)置top命令的運(yùn)行次數(shù)。top -n 5表示運(yùn)行5次后退出。

-H:顯示線程信息。top -H表示顯示線程信息而不是進(jìn)程信息。

-b:批處理模式。top -b表示以批處理模式運(yùn)行top命令。

使用htop進(jìn)行系統(tǒng)監(jiān)控

1、htop簡(jiǎn)介

htop是top命令的一個(gè)增強(qiáng)版,它提供了更加豐富的功能和更友好的界面,與top相比,htop支持鼠標(biāo)操作,可以更加方便地查看和分析系統(tǒng)信息。

2、htop使用方法

在終端中輸入htop命令,即可進(jìn)入htop界面,在htop界面中,可以看到系統(tǒng)中各個(gè)進(jìn)程的資源占用情況,如下所示:

htop [17:34:06] up 1 day, 3 hours, 4 users, load average: min/avg/max = 0.00/0.02/0.05

Top 1 processes by CPU usage:

one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty thirty-one thirty-two thirty-three thirty-four thirty-five thirty-six thirty-seven thirty-eight thirty-nine forty forty-one forty-two forty-three forty-four forty-five forty-six forty-seven forty-eight forty-nine fifty fifty-one fifty-two fifty-three fifty-four fifty-five fifty-six fifty-seven fifty-eight fifty-nine sixty 總計(jì) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 總計(jì) 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll 總計(jì) ]

Processes: %Cpu(s): %us, %sy, %ni, %id, %wa, %hi, %si, %st, %di, %pi, %rt[%T], %Pc Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us, %sy, %ni Name: ID State: Pid User: CPU Cpu(s): %us


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