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<DIV><FONT size=2>Have you tried using pcap_stats and check the number of
dropped packets in the statistics?</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Have a nice day</FONT></DIV>
<DIV><FONT size=2>GV</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=chad.hansen.ch@gmail.com href="mailto:chad.hansen.ch@gmail.com">Chad
Hansen</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=winpcap-users@winpcap.org
href="mailto:winpcap-users@winpcap.org">winpcap-users@winpcap.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, May 14, 2008 10:00
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Winpcap-users] detecting
dropped packets</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal>I’ve searched the FAQ, docs, and mailing list, but couldn’t
quite find an answer.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>I’m writing a speed-sensitive application that needs to
process large volumes of packets live. I’d like to know if the app is keeping
up with traffic, which means I need to know if wpcap’s kernel (or user?)
buffer is ever overflowing and dropping packets (caused, of course, by my app
not emptying the buffer fast enough). Is there a way to tell if I’m reading
wpcap’s buffer too slowly?<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>On a related note, if I dump packets to a file and then
capture from the file, is there any timing information associated with that?
Ie, can I read from the file at the same speed/timing distribution that the
packets were captured at? If so, I’ll simply save some traffic to a file and
then when my app is done, compare the amount of packets in the file to the
amount my app read to see if any were dropped.<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal>Thanks!<o:p></o:p></P></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>Winpcap-users
mailing
list<BR>Winpcap-users@winpcap.org<BR>https://www.winpcap.org/mailman/listinfo/winpcap-users<BR></BLOCKQUOTE></BODY></HTML>