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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, tiwei.bie@intel.com, jfreimann@redhat.com,
	zhihong.wang@intel.com, bruce.richardson@intel.com,
	konstantin.ananyev@intel.com, david.marchand@redhat.com
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [dpdk-dev] [PATCH v2 2/5] vhost: do not inline packed and split functions
Date: Fri, 17 May 2019 17:06:10 +0200	[thread overview]
Message-ID: <20190517150613.13310-3-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20190517150613.13310-1-maxime.coquelin@redhat.com>

At runtime either packed Tx/Rx functions will always be called,
or split Tx/Rx functions will always be called.

This patch removes the forced inlining in order to reduce
the I-cache pressure.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 lib/librte_vhost/virtio_net.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index a6a33a1013..8aeb180016 100644
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -771,7 +771,7 @@ copy_mbuf_to_desc(struct virtio_net *dev, struct vhost_virtqueue *vq,
 	return error;
 }
 
-static __rte_always_inline uint32_t
+static __rte_noinline uint32_t
 virtio_dev_rx_split(struct virtio_net *dev, struct vhost_virtqueue *vq,
 	struct rte_mbuf **pkts, uint32_t count)
 {
@@ -830,7 +830,7 @@ virtio_dev_rx_split(struct virtio_net *dev, struct vhost_virtqueue *vq,
 	return pkt_idx;
 }
 
-static __rte_always_inline uint32_t
+static __rte_noinline uint32_t
 virtio_dev_rx_packed(struct virtio_net *dev, struct vhost_virtqueue *vq,
 	struct rte_mbuf **pkts, uint32_t count)
 {
@@ -1300,7 +1300,7 @@ get_zmbuf(struct vhost_virtqueue *vq)
 	return NULL;
 }
 
-static __rte_always_inline uint16_t
+static __rte_noinline uint16_t
 virtio_dev_tx_split(struct virtio_net *dev, struct vhost_virtqueue *vq,
 	struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts, uint16_t count)
 {
@@ -1422,7 +1422,7 @@ virtio_dev_tx_split(struct virtio_net *dev, struct vhost_virtqueue *vq,
 	return i;
 }
 
-static __rte_always_inline uint16_t
+static __rte_noinline uint16_t
 virtio_dev_tx_packed(struct virtio_net *dev, struct vhost_virtqueue *vq,
 	struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts, uint16_t count)
 {
-- 
2.21.0


  parent reply	other threads:[~2019-05-17 15:06 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-17 15:06 [dpdk-dev] [PATCH v2 0/5] vhost: I-cache pressure optimizations Maxime Coquelin
2019-05-17 15:06 ` [dpdk-dev] [PATCH v2 1/5] vhost: un-inline dirty pages logging functions Maxime Coquelin
2019-05-20  5:18   ` Tiwei Bie
2019-05-17 15:06 ` Maxime Coquelin [this message]
2019-05-20  5:30   ` [dpdk-dev] [PATCH v2 2/5] vhost: do not inline packed and split functions Tiwei Bie
2019-05-17 15:06 ` [dpdk-dev] [PATCH v2 3/5] vhost: do not inline unlikely fragmented buffers code Maxime Coquelin
2019-05-20  5:51   ` Tiwei Bie
2019-05-24 13:50     ` Maxime Coquelin
2019-05-17 15:06 ` [dpdk-dev] [PATCH v2 4/5] vhost: simplify descriptor's buffer prefetching Maxime Coquelin
2019-05-29  8:05   ` Tiwei Bie
2019-05-17 15:06 ` [dpdk-dev] [PATCH v2 5/5] eal/x86: force inlining of all memcpy and mov helpers Maxime Coquelin
2019-05-20  8:30   ` David Marchand

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