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| author | Justin Iurman <justin.iurman@uliege.be> | 2024-12-03 15:49:45 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-12-05 13:15:56 +0300 |
| commit | 985ec6f5e6235242191370628acb73d7a9f0c0ea (patch) | |
| tree | c9e201081e292e1a3b20c34158eb006c542c0367 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 40475b63761abb6f8fdef960d03228a08662c9c4 (diff) | |
| download | linux-985ec6f5e6235242191370628acb73d7a9f0c0ea.tar.xz | |
net: ipv6: rpl_iptunnel: mitigate 2-realloc issue
This patch mitigates the two-reallocations issue with rpl_iptunnel by
providing the dst_entry (in the cache) to the first call to
skb_cow_head(). As a result, the very first iteration would still
trigger two reallocations (i.e., empty cache), while next iterations
would only trigger a single reallocation.
Performance tests before/after applying this patch, which clearly shows
there is no impact (it even shows improvement):
- before: https://ibb.co/nQJhqwc
- after: https://ibb.co/4ZvW6wV
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Cc: Alexander Aring <aahringo@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions