[Winpcap-users] pcap_start_oem() slowing windows login/boot up time

[Gianluca Varenni]

Rajesh,

I believe this question is related to WinPcap Professional. I've forwarded 
your email to support at cacetech.com where it will be better answered.

Have a nice day
GV

--------------------------------------------------
From: "Rajesh Kumar" <rkumarra at cisco.com>
Sent: Wednesday, August 25, 2010 12:00 PM
To: <winpcap-users at winpcap.org>
Subject: [Winpcap-users] pcap_start_oem() slowing windows login/boot up time

> Hi All,
>
> We have developed a monitoring service which uses the winpcap 4.0. The
> MonitorService will be installed in the PC's with automatic mode and will 
> be
> started during the boot up of the machine.
>
> In the main thread of the service we have a call to pcap_start_oem()
> function.
>
> After that we have the call to find the list of network adapters.
>
>
> When the service is set to Automatic start mode we see a delay of 80 
> seconds
> to execute the function pcap_start_oem() during the boot up of the machine
> as below.
>
>
> 18:29:39.325  2152  MonitorService  - Calling pcap_start_oem
> 18:31:13.420  2152  MonitorService   - Out of pcap_start_oem
>
>
>
> However after booting up the machine, if we start the Monitor service
> manually it does takes only few milliseconds to execute this function.
>
>
>
> 18:27:29.199  1564 MonitorService   - Calling pcap_start_oem
> 18:27:29.324  1564  MonitorService   - Out of pcap_start_oem
>
>
>
> Since by default we have the service set to Automatic mode, the boot up of
> the windows machine takes more time.
>
>
>
> My understanding is while the system boots up, the time taken to 
> initialize
> the packet filter kernel mode driver also adds up to the function call
> execution time. Please correct me if I am wrong.
>
>
>
> Is there any settings  to overcome this issue?
>
> Is this expected? Do you have any suggestions to overcome this delay?
>
> I need to reduce the time taken during boot up. Need your help in 
> achieving
> the same.
>
>
>
> Thanks in advance.
>
>
>
> With Regards,
>
> Rajesh Kumar R
>
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