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<DIV><FONT face=Calibri>[hit send too soon...]</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>
<DIV><FONT face=Calibri>Can you please post the code that is
failing?</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>Also, bigger buffers don't necessary mean better
performance. Having bigger buffers helps to cope with sudden traffic spikes. It
doesn't help if the WinPcap-based application is generally too slow at
processing packets. </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Calibri>GV</FONT></DIV></FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV style="FONT: 10pt Tahoma">
<DIV><FONT size=3 face=Calibri></FONT><BR></DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A
title=gianluca.varenni@cacetech.com
href="mailto:gianluca.varenni@cacetech.com">Gianluca Varenni</A> </DIV>
<DIV><B>Sent:</B> Thursday, July 29, 2010 11:45 AM</DIV>
<DIV><B>To:</B> <A
title="mailto:winpcap-users@winpcap.org CTRL + Click to follow link"
href="mailto:winpcap-users@winpcap.org">winpcap-users@winpcap.org</A> </DIV>
<DIV><B>Subject:</B> Re: [Winpcap-users] PacketReceivePacket error out on
allocating buffergerater than 4MB</DIV></DIV></DIV>
<DIV><BR></DIV>
<DIV><FONT face=Calibri>Can you please post the code that is
failing?</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>Also, bigger buffers don't necessary mean better
performance. They just enlarg</FONT></DIV>
<DIV><FONT face=Calibri>GV</FONT></DIV>
<DIV style="FONT: 10pt Tahoma">
<DIV><BR></DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=pushkartiwari@gmail.com
href="mailto:pushkartiwari@gmail.com">Pushkar Tiwari</A> </DIV>
<DIV><B>Sent:</B> Thursday, July 29, 2010 11:37 AM</DIV>
<DIV><B>To:</B> <A title=winpcap-users@winpcap.org
href="mailto:winpcap-users@winpcap.org">winpcap-users@winpcap.org</A> </DIV>
<DIV><B>Subject:</B> [Winpcap-users] PacketReceivePacket error out on allocating
buffergerater than 4MB</DIV></DIV></DIV>
<DIV><BR></DIV>
<DIV>Hi,</DIV>
<DIV>I have written a piece of code to capture packets at very high speed. I
have writen my code using Packet API.</DIV>
<DIV>To gain better performance I tried allocating large buffer using
"PacketSetBuff" API. PacketSetBuff doesn't return any error on allocating
buffer greater than 4MB.</DIV>
<DIV>But when I call PacketReceivePacket to retrieve the packet, the call
fails.</DIV>
<DIV> </DIV>
<DIV>Is there any restriction on the buffer that can be allocated? Is there some
other wy through which we can allocate higher buffer and get the better
performance.</DIV>
<DIV> </DIV>
<DIV>Whats is the kernel buffer size that winpcap allocate by default?</DIV>
<DIV> </DIV>
<DIV>Here are some of my environment details:</DIV>
<DIV> </DIV>
<DIV>Winpacp Version : 4.1.1</DIV>
<DIV>OS : Win2k3</DIV>
<DIV>Memory : 8GB</DIV>
<DIV> </DIV>
<DIV>Thanks in advance.</DIV>
<DIV><BR></DIV>
<DIV>Pushkar</DIV>
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