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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, chenbo.xia@intel.com, amorenoz@redhat.com,
	david.marchand@redhat.com, olivier.matz@6wind.com
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [dpdk-dev] [PATCH 0/3] net/virtio: make virtqueue struct cache-friendly
Date: Mon, 21 Dec 2020 17:14:53 +0100
Message-ID: <20201221161456.31696-1-maxime.coquelin@redhat.com> (raw)

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


             reply	other threads:[~2020-12-21 16:15 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-21 16:14 Maxime Coquelin [this message]
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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