diff options
| author | Eric Dumazet <[email protected]> | 2013-06-07 08:48:57 -0700 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2013-06-12 00:25:23 -0700 |
| commit | e9897071350bd9d94a56b5b6f79c85b1a98fc7e7 (patch) | |
| tree | d01026afb4450ef685722cd7a0fe1815336170ca /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | 64153ce0a7b61b2a5cacb01805cbf670142339e9 (diff) | |
igmp: hash a hash table to speedup ip_check_mc_rcu()
After IP route cache removal, multicast applications using
a lot of multicast addresses hit a O(N) behavior in ip_check_mc_rcu()
Add a per in_device hash table to get faster lookup.
This hash table is created only if the number of items in mc_list is
above 4.
Reported-by: Shawn Bohrer <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Tested-by: Shawn Bohrer <[email protected]>
Reviewed-by: Cong Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions