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* [dpdk-dev] [PATCH 0/3] net/virtio: make virtqueue struct cache-friendly
@ 2020-12-21 16:14 Maxime Coquelin
  2020-12-21 16:14 ` [dpdk-dev] [PATCH 1/3] net/virtio: remove reference to virtqueue in vrings Maxime Coquelin
                   ` (4 more replies)
  0 siblings, 5 replies; 13+ messages in thread
From: Maxime Coquelin @ 2020-12-21 16:14 UTC (permalink / raw)
  To: dev, chenbo.xia, amorenoz, david.marchand, olivier.matz; +Cc: Maxime Coquelin

This series optimizes the cache usage of virtqueue struct,
by make a "fake" mbuf being dynamically allocated in Rx
virtnet struct, by removing a useless virtuque pointer
into the virtnet structs and by moving a few fields
to pack holes.

With these 3 patches, the virtqueue struct size goes from
576 bytes (9 cachelines) to 248 bytes (4 cachelines).

Maxime Coquelin (3):
  net/virtio: remove reference to virtqueue in vrings
  net/virtio: allocate fake mbuf in Rx queue
  net/virtio: pack virtuqueue struct

 drivers/net/virtio/virtio_ethdev.c            | 46 +++++++++++--------
 drivers/net/virtio/virtio_rxtx.c              | 36 +++++++--------
 drivers/net/virtio/virtio_rxtx.h              |  5 +-
 drivers/net/virtio/virtio_rxtx_packed_avx.c   | 14 +++---
 drivers/net/virtio/virtio_rxtx_simple.h       |  2 +-
 .../net/virtio/virtio_rxtx_simple_altivec.c   |  2 +-
 drivers/net/virtio/virtio_rxtx_simple_neon.c  |  2 +-
 drivers/net/virtio/virtio_rxtx_simple_sse.c   |  2 +-
 .../net/virtio/virtio_user/virtio_user_dev.c  |  4 +-
 drivers/net/virtio/virtio_user_ethdev.c       |  2 +-
 drivers/net/virtio/virtqueue.h                | 24 ++++++----
 11 files changed, 72 insertions(+), 67 deletions(-)

-- 
2.29.2


^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2021-03-15 13:46 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-12-21 16:14 [dpdk-dev] [PATCH 0/3] net/virtio: make virtqueue struct cache-friendly Maxime Coquelin
2020-12-21 16:14 ` [dpdk-dev] [PATCH 1/3] net/virtio: remove reference to virtqueue in vrings Maxime Coquelin
2021-01-11  2:17   ` Xia, Chenbo
2020-12-21 16:14 ` [dpdk-dev] [PATCH 2/3] net/virtio: allocate fake mbuf in Rx queue Maxime Coquelin
2021-01-11  2:50   ` Xia, Chenbo
2021-03-15 11:29     ` Maxime Coquelin
2021-01-11  5:39   ` Xia, Chenbo
2021-03-15 13:46     ` Maxime Coquelin
2020-12-21 16:14 ` [dpdk-dev] [PATCH 3/3] net/virtio: pack virtuqueue struct Maxime Coquelin
2021-01-11  2:56   ` Xia, Chenbo
2021-01-08  2:50 ` [dpdk-dev] [PATCH 0/3] net/virtio: make virtqueue struct cache-friendly Xia, Chenbo
2021-01-08  8:25   ` Maxime Coquelin
2021-01-25 17:30 ` Maxime Coquelin

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