HP-UX Workload Manager User's Guide

Configuring WLM
Tuning the metrics and the SLOs
Chapter 5228
NOTE A proportional_term equal to 0, when applied to the
formula for determining new allocations
New CPU allocation =
(Allocation last interval) + cntl_kp * P
results in the formula
New CPU ent. = (Allocation last interval)
which leads to no change in an SLO’s allocation
request.
Also, using large values for proportional_term can
produce unstable behavior, causing service levels and
allocations to oscillate drastically.
In the following example, cntl_kp is set to 2 (twice the
default) so that the SLO converges twice as fast on its
goal:
tune sales_app.resp_time {
coll_argv = /opt/sales_app/monitor;
cntl_kp = 2.0;
}
For more information on how to tune, see the white paper “Tuning
HP-UX Workload Manager” at /opt/wlm/share/doc/howto/tuning.html.