perffmwk

Class HistogramStatsPrms

java.lang.Object

hydra.BasePrms

perffmwk.HistogramStatsPrms

public class HistogramStatsPrms
extends BasePrms

Field Summary

Fields

Modifier and Type	Field and Description
static Long	binVals (List of long) List of monotonically increasing long time units, in nanoseconds, used to configure the bins in an instance of HistogramStats.
static Long	enable (boolean) Whether to enable HistogramStats for tasks that use them.
static Long	logHighLatencyWarnings (boolean) Whether to log warnings when the highest latencies occur, with the value of the latency.
static Long	statisticsSpecification (String) Name of the statistics specification file.

Fields inherited from class hydra.BasePrms

DASH, DEFAULT, NONE

Constructor Summary

Constructors

Constructor and Description
HistogramStatsPrms()

Method Summary

Modifier and Type	Method and Description
static boolean	enable()
static long[]	getBinVals()
static boolean	logHighLatencyWarnings()

Methods inherited from class hydra.BasePrms

dumpKeys, keyForName, nameForKey, setValues, tab, tasktab

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

enable

public static Long enable

(boolean) Whether to enable HistogramStats for tasks that use them. Defaults to false. Histogram statistics can be enabled or disabled on a per-task basis using task attributes.

logHighLatencyWarnings

public static Long logHighLatencyWarnings

(boolean) Whether to log warnings when the highest latencies occur, with the value of the latency. Defaults to false.

statisticsSpecification

public static Long statisticsSpecification

(String) Name of the statistics specification file. Defaults to null.

binVals

public static Long binVals

(List of long) List of monotonically increasing long time units, in nanoseconds, used to configure the bins in an instance of HistogramStats. This is a required parameter when enable is true. The same set of bin values is used for all statistics instances.

For example, perffmwk.HistogramStatsPrms-enable = true; perffmwk.HistogramStatsPrms-binVals = 500000 1000000; would produce three bins, one to count all times under 500000 ns, one for times between 500000 and 1000000 ns, and one for all times over 1000000 ns.

Constructor Detail

HistogramStatsPrms

public HistogramStatsPrms()

Method Detail

enable

public static boolean enable()

logHighLatencyWarnings

public static boolean logHighLatencyWarnings()

getBinVals

public static long[] getBinVals()