2015-03-09 13:56 GMT-04:00 Alexandre Montplaisir <[email protected]>:
> On 2015-03-09 01:45 PM, Jérémie Galarneau wrote: > >> I'm not sure about Trace Compass, cc-ing Alexandre Montplaisir. >> > > Trace Compass can correlate traces taken on different hosts by using > network events between them. See > http://archive.eclipse.org/tracecompass/doc/org.eclipse. > tracecompass.doc.user/Trace-synchronization.html > > For more simple use cases, it's also possible to offset a trace manually > by specifying a value: > http://archive.eclipse.org/tracecompass/doc/org.eclipse. > tracecompass.doc.user/Time-offsetting.html > > As an additional note, if the virtual machines do not exchanges packets, then you could use the vmsync modules to trigger required events for synchronization [1]. It is still experimental, but it provides high precision clock synchronization (~1us) for KVM on x86. Cheers, Francis [1] http://www.journalofcloudcomputing.com/content/3/1/23
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