Re: do_gettimeofday

[Ben Greear <greearb@xxxxxxxxxxxxxxx>]

Mitchell Blank Jr wrote:
> David S. Miller wrote:
>
> > There is the weird issue (with both the sparc64 example and your's
> > here) of whether we should care about what happens when settimeofday()
> > occurs.  We probably shouldn't worry about it... as it gives weird
> > results even currently.
>
> Nah.  If anything you'll get better results since you're computing
> the timeval later.
>
> This is another argument for caching the computation though - otherwise
> a settimeofday() could cause the packet timestamp to change drasically
> from one observation to the next :-)
It would also be nice to be able to set a flag on raw sockets to just have the 
'raw' timestamp passed
up to user-space.  In many cases, the relative timestamp may be all that is 
needed,
and user-space could optimize the conversion to gettimeofday as needed.

Ben


--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc  http://www.candelatech.com