[Click] kernel click - packet timestamps

[Alastair McKinley]

Hi Eddie,

Sorry for the lack of info.  The packets are just spanning tree packets
from a switch.

I ran this config at userlevel and kernel mode to illustrate my problem:

FromDevice(eth0, PROMISC true) -> Queue() -> Print("Packet",24,TIMESTAMP
true) -> TimedSink(0.1);

When I run this at userlevel, the packet timestamps get printed nicely.
However, when I run this in kernel mode click, the packet timestamps all
appear as 0.000000.

I'm not sure why this is, so I'm stuck!

Alastair


On Thu, 2006-03-23 at 10:07 -0800, Eddie Kohler wrote:
> Have you tried "Print(TIMESTAMP true)"?
> 
> How are you generating the packets?  Perhaps their timestamps really are 0 in 
> the kernel.  As always we appreciate full configurations.
> 
> Eddie
> 
> 
> Alastair McKinley wrote:
> > Hi everyone,
> > 
> > I'm having a problem (another one) with packet timestamps at kernel
> > level.  I've been trying to print packet timestamps both with the
> > standard print element and my own element.  This works fine at userlevel
> > with something like:
> > 
> > 	StringAccum sa;
> > 	sa << p->timestamp_anno();
> > 	click_chatter("%s",sa.c_str());
> > 
> > However, when I use the same element in the kernel, all the packet
> > timestamps appear to be 0.000.  Can anyone tell me why and what to do
> > about it? Or have I missed something?
> > 
> > Best regards and thanks,
> > 
> > Alastair
> > 
> > 
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