метрики производительности серверная часть 3D-визуализации (performance metrics 3D visualization back-end)
Имя (Name)
pmview - performance metrics 3D visualization back-end
Синопсис (Synopsis)
pmview [-Cz] [-A align] [-a archive[,archive,...]] [-c
configfile] [-h host] [-n pmnsfile] [-O origin] [-p port] [-R
logconfig] [-r addconfig] [-S starttime] [-t interval] [-T
endtime] [-x version] [-Z timezone] [-geometry geometry]
[-display display] [-name name] [-title title] [-xrm
"resourceName: value" ...] [other X11-args]
Описание (Description)
pmview is a generalized 3D performance metrics visualization tool
for the Performance Co-Pilot (PCP(1)).
pmview is the base utility behind performance metrics
visualization tools such as dkvis(1), mpvis(1), osvis(1) and
nfsvis(1), It is also used by a range of related tools that are
specific to optional Performance Domain Agents (PMDA) and/or PCP
add-on products. pmview may also be used to construct customized
3D performance displays.
pmview displays performance metrics as colored blocks and
cylinders arranged on monochrome base planes. Each object may
represent a single performance metric, or a stack of several
performance metrics. Since the objects are modulated by the
value of the metric they represent, only numerical metrics may be
visualized. Objects representing a single metric may be
modulated in terms of height, color, or height and color.
Objects in a stack may only be height modulated, but the stack
can be normalized to the maximum height. Labels may be added to
the scene to help identify groups of metrics.
A configuration file (as specified by the -c option, or read from
standard input) is used to specify the position, color, maximum
value and labels of metrics and metric instances in the scene.
The maximum value acts as a normalization factor and is used to
scale the object height and/or color in proportion to the metric
values. Metric values which exceed the associated maximum value
are displayed as solid white objects. If a metric is
unavailable, the object will have minimum height and will be
colored grey.
Normally, the tool operates in ``live'' mode where performance
metrics are fetched in real-time. The user can view metrics from
any host running pmcd(1). pmview can also replay archives of
performance metrics (see pmlogger(1)) and allow the user to
interactively control the current replay time and rate using the
VCR paradigm. This is particularly useful for retrospective
comparisons and for post-mortem analysis of performance problems
where a remote system is not accessible or a performance analyst
is not available on-site.
All metrics in the Performance Metrics Name Space (PMNS) with
numeric value semantics from any number of hosts or archives may
be visualized. pmview examines the semantics of the metrics and
where sensible, converts metric values to a rate before scaling.
