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| author | Nicolas Dichtel <[email protected]> | 2014-10-29 19:29:31 +0100 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2014-10-29 16:11:50 -0400 |
| commit | 75fbfd33234a71556bec34b099d98f970190905d (patch) | |
| tree | 1a5b40b1e9d8035336c8e8ac581cb10165951cc2 /tools/perf/scripts/python/syscall-counts.py | |
| parent | bc9ad166e38ae1cdcb5323a8aa45dff834d68bfa (diff) | |
neigh: optimize neigh_parms_release()
In neigh_parms_release() we loop over all entries to find the entry given in
argument and being able to remove it from the list. By using a double linked
list, we can avoid this loop.
Here are some numbers with 30 000 dummy interfaces configured:
Before the patch:
$ time rmmod dummy
real 2m0.118s
user 0m0.000s
sys 1m50.048s
After the patch:
$ time rmmod dummy
real 1m9.970s
user 0m0.000s
sys 0m47.976s
Suggested-by: Thierry Herbelot <[email protected]>
Signed-off-by: Nicolas Dichtel <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions