1.2-vmstat detailed

Vmstat Viewing system bottlenecks

Vmstat 1 1 seconds display 1 times, always show

Vmstat 1 5 1 seconds Display 5 times, then exit

Vmstat 1 seconds Display 1 times, then exit

Detailed parameters:

Procs process related View CPU bottleneck

R 1 seconds, there are several processes in run, using CPU

How many tasks are blocked by IO within 1 seconds of B

Memory-related

SWPD how much k of data is exchanged to virtual memory. Some software relies on virtual memory, not enough memory.

Free remaining physical memory

Buff remaining buff

Cache remaining Cache

Swap virtual memory related to see if memory has bottlenecks

Si writes memory per second

So read out memory every second

IO to see if the disk has a bottleneck

Bi Write disk per second

Bo reads disk per second

System kernel-related

Number of interrupts per second

CS per second Context switch

Cup CPU related

US user process, consuming cpu%

SY kernel process, occupy cpu%

ID Idle cpu%

WA waits to occupy cup%

The ST was stolen

1.2-vmstat detailed