Co robi VMSTAT użycie. Konsola processes, memory, paging block I/O, traps, system and CPU usage.

Czy przydatne?

Polecenie vmstat

Wykonanie, użycie: System administration command. Print report on virtual memory statistics, including information on processes, memory, paging block I/O, traps, system and CPU usage. vmstat initially reports average values since the last system reboot. If given a sampling period interval in seconds, it prints additional statistics for each interval. If specified, vmstat exits when it has completed count reports. Otherwise, it continues until it receives a Ctrl-C, printing a new header line each time it fills the screen

Opcje wykonania vmstat w konsoli

-a

Display active and inactive memory.

-d

Display disk statistics.

-f

Display the number of forks since the system was booted.

-m

Display the names and sizes of various kernel objects stored in a cache known as the slab layer. Also see the slabtop command.

-n

Don't print new header lines when the screen is full.

-p partition

Display detailed statistics for the specified partition.

-s

Display various even counters and memory statistics.

-S units

Switch the output units. Possible values are k, K, m or M.

-V

Print version number, then exit.

Przykłady vmstat działanie w Słownik polecenie V

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Przykład VMSTAT użycie :
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Przykład VMSTAT użycie :
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Jak użyć An enhanced version of the vi screen editor. Both vi and vim are covered in Chapter 9 słownik.
Przykład VMSTAT użycie :
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