20 Command Line Tools to Monitor Linux Performance

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Ravi Saive

Simple Word a Computer Geek and Linux Guru who loves to share tricks and tips on Internet. Most Of My Servers runs on Open Source Platform called Linux.

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89 Responses

  1. herauthon says:

    my prefs :
    glances ( htop eq)
    jnettop (net activity)
    dnstop ( dns requests mon)
    ntopng (network activity and reporting)
    mtr (pathway ping traceroute)

  2. herauthon says:

    all very nice!

    1. terminal diagnostics are always the best – yes – it’s an axioma
    why ? – shutdown gui and save resources – then diagnose.. what a difference :D

    2. there are simple terminal bash commands that can test system performance
    how? – do a dd that makes a 25Gb file – if you have that free space
    check howmuch time it takes
    time dd if=/dev/zero of=/map/bigfile bs=4096 count=6553600 (25Gb)
    shutdown the gui and erase-and-retry

    3. hdparm does have a nice test
    hdparm -tT /dev/sd[n] – gives you buffered, non buffered internal diskspeeds

    4. this 25Gb file can be moved from media to media
    check how much time this takes
    time cp /map/bigfile /otherdisk

    5. how does the machine run without swap ?

    6. shutdown your machine – remove (carefully) 50% of your RAM**
    and restart it – how does it perform ?

    ** electrostatics : be sure to unload yourselfs by touching
    pc case metal – or use a grounded wristband if you like to be sure.

    just some ideas

  3. Ahamed says:

    Most useful tools for monitoring is iftop and iotop =)

  4. Ahamed says:

    Very useful, is there any way to monitor current bandwidth

  5. Jose Tapia says:

    Great utilities, thanks, i learn a lot with these post :)

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