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| author |   Sven Van Asbroeck <thesven73@gmail.com> | 2021-02-15 20:08:03 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-02-16 15:15:21 -0800 |
| commit | 966df6ded24d537834402a421d46ef31b3647a78 (patch) | |
| tree | 8d6c6e8c966f88e0e892eb394b47e6e0ba33e062 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | lan743x: boost performance on cpu archs w/o dma cache snooping (diff) | |
| download | wireguard-linux-966df6ded24d537834402a421d46ef31b3647a78.tar.xz wireguard-linux-966df6ded24d537834402a421d46ef31b3647a78.zip | |
lan743x: sync only the received area of an rx ring buffer
On cpu architectures w/o dma cache snooping, dma_unmap() is a
is a very expensive operation, because its resulting sync
needs to invalidate cpu caches.
Increase efficiency/performance by syncing only those sections
of the lan743x's rx ring buffers that are actually in use.
Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com>
Reviewed-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions