search for: 6532cda

...Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/vhost/vhost.c | 33 +++++++++++++++++++++++++++++++++ > drivers/vhost/vhost.h | 1 + > 2 files changed, 34 insertions(+) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 8424166d..6532cda 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -2178,6 +2178,39 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len) > } > EXPORT_SYMBOL_GPL(vhost_add_used); > > +int vhost_add_used_idx(struct vhost_virtqueue *vq, int n) &gt...

...Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/vhost/vhost.c | 33 +++++++++++++++++++++++++++++++++ > drivers/vhost/vhost.h | 1 + > 2 files changed, 34 insertions(+) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 8424166d..6532cda 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -2178,6 +2178,39 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len) > } > EXPORT_SYMBOL_GPL(vhost_add_used); > > +int vhost_add_used_idx(struct vhost_virtqueue *vq, int n) &gt...

...--- > > > drivers/vhost/vhost.c | 33 +++++++++++++++++++++++++++++++++ > > > drivers/vhost/vhost.h | 1 + > > > 2 files changed, 34 insertions(+) > > > > > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > > > index 8424166d..6532cda 100644 > > > --- a/drivers/vhost/vhost.c > > > +++ b/drivers/vhost/vhost.c > > > @@ -2178,6 +2178,39 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len) > > > } > > > EXPORT_SYMBOL_GPL(vhost_add_used); > > > +int vh...

...--- > > > drivers/vhost/vhost.c | 33 +++++++++++++++++++++++++++++++++ > > > drivers/vhost/vhost.h | 1 + > > > 2 files changed, 34 insertions(+) > > > > > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > > > index 8424166d..6532cda 100644 > > > --- a/drivers/vhost/vhost.c > > > +++ b/drivers/vhost/vhost.c > > > @@ -2178,6 +2178,39 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len) > > > } > > > EXPORT_SYMBOL_GPL(vhost_add_used); > > > +int vh...

...h_desc_indices() by batching code. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/vhost.c | 33 +++++++++++++++++++++++++++++++++ drivers/vhost/vhost.h | 1 + 2 files changed, 34 insertions(+) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 8424166d..6532cda 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -2178,6 +2178,39 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len) } EXPORT_SYMBOL_GPL(vhost_add_used); +int vhost_add_used_idx(struct vhost_virtqueue *vq, int n) +{ + u16 old, new; + + old = vq->la...

...;jasowang at redhat.com> >> --- >> drivers/vhost/vhost.c | 33 +++++++++++++++++++++++++++++++++ >> drivers/vhost/vhost.h | 1 + >> 2 files changed, 34 insertions(+) >> >> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c >> index 8424166d..6532cda 100644 >> --- a/drivers/vhost/vhost.c >> +++ b/drivers/vhost/vhost.c >> @@ -2178,6 +2178,39 @@ int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len) >> } >> EXPORT_SYMBOL_GPL(vhost_add_used); >> >> +int vhost_add_used_idx(struct...

Hi: This series tries to implement basic tx batched processing. This is done by prefetching descriptor indices and update used ring in a batch. This intends to speed up used ring updating and improve the cache utilization. Test shows about ~22% improvement in tx pss. Please review. Jason Wang (5): vhost: split out ring head fetching logic vhost: introduce helper to prefetch desc index

Hi: This series tries to implement basic tx batched processing. This is done by prefetching descriptor indices and update used ring in a batch. This intends to speed up used ring updating and improve the cache utilization. Test shows about ~22% improvement in tx pss. Please review. Jason Wang (5): vhost: split out ring head fetching logic vhost: introduce helper to prefetch desc index

...ignal(&net->dev, vq, head, 0); - else - vhost_zerocopy_signal_used(net, vq); - vhost_net_tx_packet(net); - if (unlikely(total_len >= VHOST_NET_WEIGHT)) { - vhost_poll_queue(&vq->poll); - break; } } out: diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 6532cda..8764df5 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -392,7 +392,7 @@ static long vhost_dev_alloc_iovecs(struct vhost_dev *dev) vq->indirect = kmalloc(sizeof *vq->indirect * UIO_MAXIOV, GFP_KERNEL); vq->log = kmalloc(sizeof *vq->log * UIO_MAXIOV,...

...- vhost_zerocopy_signal_used(net, vq); > - vhost_net_tx_packet(net); > - if (unlikely(total_len >= VHOST_NET_WEIGHT)) { > - vhost_poll_queue(&vq->poll); > - break; > } > } > out: > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 6532cda..8764df5 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -392,7 +392,7 @@ static long vhost_dev_alloc_iovecs(struct vhost_dev *dev) > vq->indirect = kmalloc(sizeof *vq->indirect * UIO_MAXIOV, > GFP_KERNEL); > vq->log = kmalloc(siz...

...- vhost_zerocopy_signal_used(net, vq); > - vhost_net_tx_packet(net); > - if (unlikely(total_len >= VHOST_NET_WEIGHT)) { > - vhost_poll_queue(&vq->poll); > - break; > } > } > out: > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 6532cda..8764df5 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -392,7 +392,7 @@ static long vhost_dev_alloc_iovecs(struct vhost_dev *dev) > vq->indirect = kmalloc(sizeof *vq->indirect * UIO_MAXIOV, > GFP_KERNEL); > vq->log = kmalloc(siz...