Kacheong Poon writes: > James Carlson wrote: > > Yep. You could call it IP_PKTINFO. ;-} > > > Just wondering, are those apps requiring this kind > of usage performance sensitive? Using ancillary > data is not really cheap (need to do some data > handling in user and kernel). If there is such > a performance requirement, does it make sense for > a new sys call?
I'd be rather surprised if applications needing this sort of feature are significantly affected by anything related to ancillary data (compared both to the other work they typically do, and compared to the overhead issues of having to deal with very large numbers of peers), but the definitive test would be to create an experimental new interface for this and then measure to see if there is any noticable overall improvement. -- James Carlson, Solaris Networking <[email protected]> Sun Microsystems / 35 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677 _______________________________________________ networking-discuss mailing list [email protected]
