Re: pcap_next_ex() and pcap_dump() performance decreases over time...

[barcaroller <barcaroller () gmail com>]

On 2015-08-23 09:39:19 +0000, Ander Juaristi said:

> Have you completely discarded algorithmical issues?
>
> This looks like something is being constantly doubled. Probably in 
> logarithmic time.

The timers are wrapped around the pcap functions:

   timer before_dump;
   pcap_dump();
   timer after_dump;
   duration_dump = after_dump - before_dump;

   timer before_next;
   pcap_next_ex();
   timer after_next;
   duration_next = after_next - before_next;

   // Now calculate total, average, maximum, and minimum durations


No matter what the rest of the code does, I would expect the durations 
above to be relatively constant.


_______________________________________________
tcpdump-workers mailing list
tcpdump-workers () lists tcpdump org
https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers