[Winpcap-users] Slow sending?

[Loris Degioanni]

If you want to increase the Tx performance, use buffered send 
functions(pcap_sendqueue*). pcap_sendpacket() does a context switch per 
packet, that's the reason why it's so slow.

Loris


Accounts wrote:
> Hi Everybody.
> 
>    I am using WinPCap to do active redirection of packets. Everything
> is working very well except I have one problem.
> 
> WinPCap seems to be very slow to send the packets?
> 
> I checked my code from the time I receive the packet to my code until
> the time I call pcap_sendpacket, there is less than 1 ms so I know the
> problem
> is not a bottleneck in my code. However looking at ethereal and doing
> some pinging tests. It looks like after I call pcap_sendpacket it is
> taking up to 1 second to actually go out.
> 
>    Any ideas?!
> 
>    Any help would be appreciated.
> 
>    And also I tried to use send queues but the same problem.
> 
> 
> 
> 
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