Hello, I am new to this community. And i would like to know from where i should start. Please guide me.
Thanking you Bipul kumar On 1/12/15, David Laight <david.lai...@aculab.com> wrote: > From: Guy Harris >> On Jan 9, 2015, at 2:09 AM, Michal Sekletar <msekl...@redhat.com> wrote: >> >> > Can't we use new default timeout value (lower) if we detect TPACKET_V3, >> >> The first sentence of my original mail was "With TPACKET_V3 support, Linux >> users are discovering what >> those of us using BSD-flavored OSes have known for quite a while:" >> >> This is not a TPACKET_V3 issue, it's a buffering issue. I notice it when >> testing tcpdump on Macs, >> which don't have PF_PACKET sockets of any sort, they have BPF; if, for >> example, I test on the >> generally-low-traffic loopback interface by pinging 127.0.0.1, the packets >> don't show up continuously, >> they show up in batches, with a 1-second delay. > > Is there any real reason for a delay as long as 1 second? > If the traffic is light (which might mean 100/sec) then processing > every packet separately isn't going to be a problem. > Cleary at very high rates you do want to defer the wakuep. > > So reducing the delay from 1 sec to 100ms (or even 50ms) will have > little effect on the ability to process the received data. > > David > > _______________________________________________ > tcpdump-workers mailing list > tcpdump-workers@lists.tcpdump.org > https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers > _______________________________________________ tcpdump-workers mailing list tcpdump-workers@lists.tcpdump.org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
