[Winpcap-users] Multiple instances

Gianluca Varenni gianluca.varenni at cacetech.com
Thu May 13 07:59:11 PDT 2010


If memory is an issue, then the best solution is opening a single instance 
of the WinPcap device, and do your own filtering and demultiplexing in user 
mode. This could have the good side effect of having less kernel-user mode 
transitions to bring the packets to user mode applications.

Have a nice day
GV

--------------------------------------------------
From: "pro2c" <pro2c at litrca.com>
Sent: Thursday, May 13, 2010 5:37 AM
To: <winpcap-users at winpcap.org>
Subject: Re: [Winpcap-users] Multiple instances

> No, not 200 instances of my app but 200 instances of winpcap device to 
> have
> 200 different filters (for each port).
>
>
> -----Original Message-----
> From: winpcap-users-bounces at winpcap.org
> [mailto:winpcap-users-bounces at winpcap.org] On Behalf Of David Chang
> Sent: Wednesday, May 12, 2010 10:08 PM
> To: winpcap-users at winpcap.org
> Subject: Re: [Winpcap-users] Multiple instances
>
> Why are you running 200 instances of your application on a single
> computer?  Do you have 200 NICs?  Maybe you can change your application
> to do more processing in one instance (i.e. multi-threading).
>
> DC
>
> pro2c wrote:
>>
>> I'm having some problems with multiple instances. When I load 200
>> instances the memory use of my app reaches 100MB. I'm guessing that
>> every instance reserves some mem for itself.
>>
>> Can this be lowered somehow?
>>
>> ------------------------------------------------------------------------
>>
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>
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