node_load1, node_load5 and node_load15

[tilak kumar]

Hi,

What does metrics node_load1, node_load5 and node_load15 mean and how is it different from node_cpu ? Could not find documentation on these.

Thanks
Tilak

[Ben Kochie]

They come from https://en.wikipedia.org/wiki/Load_(computing).  They're not very useful, as it's only an indicator of the run queue.  But we include it for completeness, and it can sometimes be used as an indicator of problems.  For example, many people traditionally use it to indicate IO problems, but node_cpu{mode="iowait"} is much more useful for this.

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[tilak kumar]

Thanks Ben Kochie.

On Sunday, December 10, 2017 at 12:35:04 PM UTC+5:30, Ben Kochie wrote:

They come from https://en.wikipedia.org/wiki/Load_(computing).  They're not very useful, as it's only an indicator of the run queue.  But we include it for completeness, and it can sometimes be used as an indicator of problems.  For example, many people traditionally use it to indicate IO problems, but node_cpu{mode="iowait"} is much more useful for this.

On Sun, Dec 10, 2017 at 7:24 AM, tilak kumar <tilakk...@gmail.com> wrote:

Hi,

What does metrics node_load1, node_load5 and node_load15 mean and how is it different from node_cpu ? Could not find documentation on these.

Thanks
Tilak

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