Linux pressure metricset
This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features.
The Pressure module reports Pressure Stall Information (PSI) collected for the cpu, memory, and io files/resources found in /proc/pressure. PSI metrics are included in Linux kernel versions from 4.20. Some distributions might have PSI support, but have disabled the feature via the CONFIG_PSI_DEFAULT_DISABLED setting, to enable PSI metrics pass psi=1 on the kernel command line during boot.
For a description of each field in the metricset, see the exported fields section.
Here is an example document generated by this metricset:
{
"@timestamp": "2017-10-12T08:05:34.853Z",
"event": {
"dataset": "linux.pressure",
"duration": 115000,
"module": "linux"
},
"linux": {
"pressure": {
"cpu": {
"some": {
"10": 1.63,
"300": 0.06,
"60": 0.29,
"total": 155911207
}
}
}
},
"metricset": {
"name": "pressure",
"period": 10000
},
"service": {
"type": "linux"
}
}