monSysLoad

Description

(Cluster environments only) Provides trended statistics on a per-engine basis. You need not have the mon_role role to query this monitor table.

There is one row per engine per statistic, with the exception of kernel run queue length, which is reported only for engine number 0.

Averages are computed using an algorithm that eliminates momentary peaks and valleys and provides a an indication of overall trends.

You need not enable any configuration parameters for this monitoring table to collect data.

Columns

The columns for monSysLoad are:

Name

Datatype

Description

InstanceID

tinyint

ID of the instance within the cluster.

EngineNumber

smallint

Engine to which this row belongs.

SteadyState

real

Average value for this statistic since Adaptive Server started.

Avg_1min

real

One-minute moving average for this statistic.

Avg_5min

real

Five-minute moving average for this statistic.

Avg_15min

real

Fifteen-minute moving average for this statistic.

Max_1min

real

Maximum 1-minute average since start-up.

Max_5min

real

Maximum 5-minute average since start-up.

Max_15min

real

Maximum 15-minute average since start-up.

Max_1min_Time

datetime

datetime at which Max_1min occurred.

Max_5min_Time

datetime

datetime at which Max_5min occurred.

Max_15min_Time

datetime

datetime at which Max_15min occurred.

Statistic

Name of the statistic this row represents:

  • Percent CPU busy

  • Percent I/O busy

  • Run queue length

  • Kernel run queue length

  • Outstanding disk I/Os

  • Disk I/Os per second

  • Network I/Os per second

Sample

float

Value of the metric at the last sample interval (that is, the current value of the metric).

Peak

float

The highest Sample value since the instance started (that is, the peak Sample value).

Peak_time

datetime

The date and time the Peak value was achieved.

StatisticID

int

A fixed identifier for this statistic. You may want to write applications to the fixed StatisticID instead of the localized Statistic name.