| commit | d8cdc6ab87550de9c93b1f6763ea6015f292d7fb | |
| author | Daniel Borkmann <dborkman@redhat.com> | |
| Fri, 31 May 2013 13:07:15 +0000 (31 15:07 +0200) | ||
| committer | Daniel Borkmann <dborkman@redhat.com> | |
| Fri, 31 May 2013 13:07:15 +0000 (31 15:07 +0200) | ||
| tree | e45481799a4436a4c5cb091151e2475e4da7df5c | treesnapshot (tar.gz zip) |
| parent | cacb34f95fb7937e81b1fe8add7b5dca91e3a4c5 | commitdiff |
ring: netsniff-ng: migrate capture only to TPACKET_V3
Lets migrate capturing to TPACKET_V3, since it will bring a better
performance due to fewer page cache misses caused by a higher density
of packets, since now they are contigous placed in the ring buffer.
It is said that TPACKET_V3 brings the following benefits:
*) ~15 - 20% reduction in CPU-usage
*) ~20% increase in packet capture rate
*) ~2x increase in packet density
*) Port aggregation analysis
*) Non static frame size to capture entire packet payload
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Lets migrate capturing to TPACKET_V3, since it will bring a better
performance due to fewer page cache misses caused by a higher density
of packets, since now they are contigous placed in the ring buffer.
It is said that TPACKET_V3 brings the following benefits:
*) ~15 - 20% reduction in CPU-usage
*) ~20% increase in packet capture rate
*) ~2x increase in packet density
*) Port aggregation analysis
*) Non static frame size to capture entire packet payload
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>