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https://issues.apache.org/jira/browse/AMQ-8414?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matt Pavlovich updated AMQ-8414:
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Description:
Modern disks are fast, and measuring time in millis is not fine grained enough
to get correct averages when there are a few blips in performance.
Current:
TimeStatisticImpl
{noformat}
System.currentTimeMillis() - start
{noformat}
Proposed:
NanoTimeStatisticsImpl extends TimeStatisticImpl
{noformat}
System.nanoTime() / 1000 - start
{noformat}
kahaDB config flag "statisticsUnit="nanos | millis" (default: millis)
was:
Modern disks are fast, and measuring time in millis is not fine grained enough
to get correct averages when there are a few blips in performance.
Current:
TimeStatisticImpl
{noformat}
System.currentTimeMillis() - start
{noformat}
Proposed:
NanoTimeStatisticsImpl extends TimeStatisticImpl
{noformat}
System.nanoTime() / 1000 - start
{noformat}
> [Proposal] Support KahaDB stats to be micro-seconds or milliseconds
> -------------------------------------------------------------------
>
> Key: AMQ-8414
> URL: https://issues.apache.org/jira/browse/AMQ-8414
> Project: ActiveMQ
> Issue Type: New Feature
> Reporter: Matt Pavlovich
> Assignee: Matt Pavlovich
> Priority: Major
> Fix For: 5.17.0, 5.16.4
>
>
> Modern disks are fast, and measuring time in millis is not fine grained
> enough to get correct averages when there are a few blips in performance.
> Current:
> TimeStatisticImpl
> {noformat}
> System.currentTimeMillis() - start
> {noformat}
> Proposed:
> NanoTimeStatisticsImpl extends TimeStatisticImpl
> {noformat}
> System.nanoTime() / 1000 - start
> {noformat}
> kahaDB config flag "statisticsUnit="nanos | millis" (default: millis)
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