tcpdump mailing list archives

Re: [PATCH] tcpdump -s 0 improvement


From: Michael Richardson <mcr () sandelman ca>
Date: Wed, 30 Nov 2011 17:18:24 -0500


I was under the impression that some of hte ring-buffer mechanisms need
packets to be aligned on MMU-sized boundaries so that the kernel can
play page-swapping games, rather than copying data.

If that's the case, then much of memory isn't really in use, just
virtual address space.

-- 
]       He who is tired of Weird Al is tired of life!           |  firewalls  [
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net architect[
] mcr () sandelman ottawa on ca http://www.sandelman.ottawa.on.ca/ |device driver[
   Kyoto Plus: watch the video <http://www.youtube.com/watch?v=kzx1ycLXQSE>
                       then sign the petition. 
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