[Winpcap-users] WinPCAP packets capture delay..
Gianluca Varenni
gianluca.varenni at cacetech.com
Fri Oct 1 15:00:12 PDT 2010
I finally had time to look at the trace files too.
The maximum packet interarrival is 934microseconds in one capture, and all the other captures show a max interarrival less than 500microseconds. This is normal. You were talking about milliseconds delay.
Am I missing anything here?
Have a nice day
GV
From: "Fish" (David B. Trout)
Sent: Thursday, September 23, 2010 2:12 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] WinPCAP packets capture delay..
So where's the problem?!
I looked at your new files (100mbit_130byte.pcap, 100mbit_60byte.pcap, ... etc) but did not see a single packet with more than 500us delay (0.5ms) from the previous packet. Most packets were 0-1us delay, which is extremely good!
So where's the problem?
I don't see a problem!
The original file you sent, yes, it showed the problem.
But these new set of capture files you sent don't have any problem with them that I could see!
Or am I going blind?
--
"Fish" (David B. Trout)
fish at softdevlabs.com
From: winpcap-users-bounces at winpcap.org [mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Alimjan Kuramshin
Sent: Thursday, September 23, 2010 8:26 AM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] WinPCAP packets capture delay..
Importance: High
Hello, David! Thanks for Your test and attention.
Okay, I have done some of my own testing with 10,000 packets I am not seeing
any delay at all.
Without 100,000 packets however, I am seeing some periodic delays.
HOWEVER...
My test is not good. It is not the same test as yours.
I do not have an oscilloscope so I cannot know if the packets are being SENT
without delay. I suspect they are.
I suspect the delay I am seeing with my test is from the SENDING machine,
not on the receiving/capturing machine.
So my test in inconclusive. It proves nothing.
Alimjan, are you absolutely certain there is no delay sending? Does your
oscilloscope have a "record" feature? Can you review your oscilloscope
recording to verify there are zero delays? It is important!
In other words, do you have ABSOLUTE *PROOF* that the packets are being SENT
without delay?
I've done some test, and here is the results http://www.filefactory.com/file/b39ec4g/n/alimjan_kuramshin_winpcap_test.zip
Can You look at them? May be You can find some thing. Thank You a lot. You are so kind!
Bye..
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