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Re: [Xen-devel] Strange network behaviour
| To: | George Dunlap <George.Dunlap@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Strange network behaviour |
| From: | Marco Tizzoni <marco.tizzoni@xxxxxxxxx> |
| Date: | Tue, 28 Jul 2009 16:09:53 +0200 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Tue, 28 Jul 2009 07:12:01 -0700 |
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On Tue, Jul 28, 2009 at 3:03 PM, George Dunlap<George.Dunlap@xxxxxxxxxxxxx> wrote: > What's the granularity of your measurement? I use tcpdump/tshark to dump e decode incoming packets and I think it uses the timestamp from the nic. The two gaps are 0.011781 and 0.011731 and they remain constant over the time. This is a snap: # Order AbsoluteTime DeltaTime 1 0.000000 0.000000 2 0.009734 0.009734 3 0.021515 0.011781 4 0.033245 0.011730 5 0.045027 0.011782 6 0.056757 0.011730 7 0.068538 0.011781 8 0.080269 0.011731 9 0.092050 0.011781 10 0.103831 0.011781 11 0.115562 0.011731 12 0.127342 0.011780 13 0.139073 0.011731 Attached a decoded dump of 10 seconds with arrival order, absolute time, relative time. Also you can find a graph where this issue is clear. Thanks, Marco
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