How do i analyze systemd boot-up performance?



  • Man page on systemd-analyze(1) - Analyze system boot-up performance

    systemd-analyze time prints the time spent in the kernel before
           userspace has been reached, the time spent in the initial RAM disk
           (initrd) before normal system userspace has been reached, and the time
           normal system userspace took to initialize. Note that these
           measurements simply measure the time passed up to the point where all
           system services have been spawned, but not necessarily until they fully
           finished initialization or the disk is idle.
    
    $ systemd-analyze 
    Startup finished in 1.175s (kernel) + 2.958s (initrd) + 3.643s (userspace) = 7.778s
    

 

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