| commit | a0c78337dd3a4900bc8628a511131b5a0b1db42a | [log] [tgz] |
|---|---|---|
| author | Matteo Croce <mcroce@redhat.com> | Thu Oct 24 19:24:58 2019 +0200 |
| committer | David S. Miller <davem@davemloft.net> | Mon Oct 28 13:44:26 2019 -0700 |
| tree | 702fa3ce30da52c3e976efd43f3134777ad80dcd | |
| parent | e1921168bbd4810de4197446e52f652cd0dd9541 [diff] |
mvpp2: prefetch frame header When receiving traffic, eth_type_trans() is high up on the perf top list, because it's the first function which access the packet data. Move the DMA unmap a bit higher, and put a prefetch just after it, so we have more time to load the data into the cache. The packet rate increase is about 14% with a tc drop test: 1620 => 1853 kpps Signed-off-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>