HP-UX Workload Manager User's Guide

Configuring WLM
Tuning the metrics and the SLOs
Chapter 5 211
• Metric-specific structure
A metric-specific tune structure applies to all SLOs using metric.
This structure can be specified, at most, once per metric. Its syntax
is:
tune metric {
[ coll_argv = data_collector_and_arguments; ]
[ coll_stderr = file; ]
[ cntl_smooth = smoothing_value; ]
[ cntl_avg = {0 | 1}; ]
[ cntl_kp = proportional_term; ]
[ cntl_convergence_rate = number_of_shares; ]
[ cntl_margin = margin_value; ]
[ cntl_base_previous_req = {0 | 1}; ]
}
• Metric/SLO-specific structure
This tune structure applies to the specified metric/SLO pair. It
can be specified, at most, once per metric/SLO pair. Its syntax
is:
tune metric slo_name {
[ cntl_kp = proportional_term; ]
[ cntl_convergence_rate = number_of_shares; ]
[ cntl_margin = margin_value; ]
[ cntl_base_previous_req = {0 | 1}; ]
}
In cases where two or more tune structures could apply in the same
situation, the more specific structure type takes precedence. Thus, a
metric/SLO-specific structure overrides a metric-specific structure,
which in turn overrides a global structure.
Here is a sample tune structure:
tune sales_app.resp_time {
coll_argv = /opt/sales_app/bin/sales_monitor -v;
}