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<p class=MsoNormal><span style='color:#1F497D'>You know, I looked desperately
for such a function and couldn’t find it, but I did stumble upon it just a day
ago. Thanks for the help!<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
winpcap-users-bounces@winpcap.org [mailto:winpcap-users-bounces@winpcap.org] <b>On
Behalf Of </b>Gianluca Varenni<br>
<b>Sent:</b> Tuesday, May 20, 2008 5:14 PM<br>
<b>To:</b> winpcap-users@winpcap.org<br>
<b>Subject:</b> Re: [Winpcap-users] detecting dropped packets<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'>Have
you tried using pcap_stats and check the number of dropped packets in the
statistics?</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'>Have
a nice day</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'>GV</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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<blockquote style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>-----
Original Message ----- <o:p></o:p></span></p>
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<p class=MsoNormal style='background:#E4E4E4'><b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'> <a href="mailto:chad.hansen.ch@gmail.com"
title="chad.hansen.ch@gmail.com">Chad Hansen</a> <o:p></o:p></span></p>
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<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>To:</span></b><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <a
href="mailto:winpcap-users@winpcap.org" title="winpcap-users@winpcap.org">winpcap-users@winpcap.org</a>
<o:p></o:p></span></p>
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<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Sent:</span></b><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'> Wednesday, May 14,
2008 10:00 AM<o:p></o:p></span></p>
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<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Subject:</span></b><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'> [Winpcap-users]
detecting dropped packets<o:p></o:p></span></p>
</div>
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<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
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<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>
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style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
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<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>_______________________________________________<br>
Winpcap-users mailing list<br>
Winpcap-users@winpcap.org<br>
https://www.winpcap.org/mailman/listinfo/winpcap-users<o:p></o:p></span></p>
</blockquote>
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