vmstat
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This shows you the differences between two versions of the page.
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vmstat [2012/04/12 16:43] k2patel created |
vmstat [2020/08/10 02:35] |
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| - | ====== vmstat ====== | ||
| - | This is just the man page snapshot for field description | ||
| - | |||
| - | <code text> | ||
| - | FIELD DESCRIPTION FOR VM MODE | ||
| - | Procs | ||
| - | r: The number of processes waiting for run time. | ||
| - | b: The number of processes in uninterruptible sleep. | ||
| - | |||
| - | Memory | ||
| - | swpd: the amount of virtual memory used. | ||
| - | free: the amount of idle memory. | ||
| - | buff: the amount of memory used as buffers. | ||
| - | cache: the amount of memory used as cache. | ||
| - | inact: the amount of inactive memory. (-a option) | ||
| - | active: the amount of active memory. (-a option) | ||
| - | |||
| - | Swap | ||
| - | si: Amount of memory swapped in from disk (/s). | ||
| - | so: Amount of memory swapped to disk (/s). | ||
| - | |||
| - | IO | ||
| - | bi: Blocks received from a block device (blocks/s). | ||
| - | bo: Blocks sent to a block device (blocks/s). | ||
| - | |||
| - | System | ||
| - | in: The number of interrupts per second, including the clock. | ||
| - | cs: The number of context switches per second. | ||
| - | |||
| - | CPU | ||
| - | These are percentages of total CPU time. | ||
| - | us: Time spent running non-kernel code. (user time, including nice time) | ||
| - | sy: Time spent running kernel code. (system time) | ||
| - | id: Time spent idle. Prior to Linux 2.5.41, this includes IO-wait time. | ||
| - | wa: Time spent waiting for IO. Prior to Linux 2.5.41, included in idle. | ||
| - | st: Time stolen from a virtual machine. Prior to Linux 2.6.11, unknown. | ||
| - | |||
| - | FIELD DESCRIPTION FOR DISK MODE | ||
| - | Reads | ||
| - | total: Total reads completed successfully | ||
| - | merged: grouped reads (resulting in one I/O) | ||
| - | sectors: Sectors read successfully | ||
| - | ms: milliseconds spent reading | ||
| - | |||
| - | Writes | ||
| - | total: Total writes completed successfully | ||
| - | merged: grouped writes (resulting in one I/O) | ||
| - | sectors: Sectors written successfully | ||
| - | ms: milliseconds spent writing | ||
| - | |||
| - | IO | ||
| - | cur: I/O in progress | ||
| - | s: seconds spent for I/O | ||
| - | |||
| - | FIELD DESCRIPTION FOR DISK PARTITION MODE | ||
| - | reads: Total number of reads issued to this partition | ||
| - | read sectors: Total read sectors for partition | ||
| - | writes : Total number of writes issued to this partition | ||
| - | requested writes: Total number of write requests made for partition | ||
| - | |||
| - | FIELD DESCRIPTION FOR SLAB MODE | ||
| - | cache: Cache name | ||
| - | num: Number of currently active objects | ||
| - | total: Total number of available objects | ||
| - | size: Size of each object | ||
| - | pages: Number of pages with at least one active object | ||
| - | |||
| - | </code> | ||
vmstat.txt ยท Last modified: 2020/08/10 02:35 (external edit)
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