ESX QE450.2 Dokumentacja Pobierz pdf (Strona 355)

VMware, Inc. 355

Thisappendixliststhemetrics,orcounters,availablefordisplayinperformancecharts.

TheavailabilityofsomecountersdependsontheStatisticsCollectionLevelsetting(see

“A b o u t CollectionIntervalsandCollectionLevels”onpage 282).Changestochart

optionstakeeffectafterthecurrentdatacollectioncycleiscompleteandthe

nextcycle

begins.

Countershaverollupandstatisticstypecharacteristics.Ametric’srollupreferstowhat

typeofmeasurementisbeingpresented.Rolluptypesincludethefollowing:

 Average–Datacollectedforthespecifieddurationisaveraged.Themeasurement

displayedinthechartrepresentsanaverageforthedurationofthedatacollection

cycle.

 Summation–Datacollectedissummed.Themeasurementdisplayedinthechart

representsthesumofdatacollectedduringthecollectioncycle.

 Latest–Datacollectedisasetvalue.Themeasurementdisplayedinthechart

representsthecurrentsetting.

 Minimum–Datacollectedisaveraged.Themeasurementdisplayedinthechart

representstheaverageminimumvalueforthedurationofthedatacollectioncycle.

 Maximum–Datacollectedisaveraged.Themeasurementdisplayedinthechart

representstheaveragemaximumvalueforthedurationofthedatacollection

cycle.

Ametric’sstatisticstypereferstowhetherthemeasurementrepresentsachangedvalue

(Delta),anabsolutevalue(Absolute),oraratio(Rate).

Performance Chart Metrics

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ESX QE450.2 Dokumentacja Strona 355