Displaying 6 results from an estimated 6 matches for "791bc8b".
2018 Jul 03
2
[PATCH v2 net-next 4/4] vhost_net: Avoid rx vring kicks during busyloop
...ing whether it was empty in fact?
>
> Signed-off-by: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>
> ---
> drivers/vhost/net.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
> index 791bc8b..b224036 100644
> --- a/drivers/vhost/net.c
> +++ b/drivers/vhost/net.c
> @@ -658,6 +658,7 @@ static int vhost_net_rx_peek_head_len(struct vhost_net *net, struct sock *sk,
> {
> struct vhost_net_virtqueue *rnvq = &net->vqs[VHOST_NET_VQ_RX];
> struct vhost_net_virtqu...
2018 Jul 03
2
[PATCH v2 net-next 4/4] vhost_net: Avoid rx vring kicks during busyloop
...ing whether it was empty in fact?
>
> Signed-off-by: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>
> ---
> drivers/vhost/net.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
> index 791bc8b..b224036 100644
> --- a/drivers/vhost/net.c
> +++ b/drivers/vhost/net.c
> @@ -658,6 +658,7 @@ static int vhost_net_rx_peek_head_len(struct vhost_net *net, struct sock *sk,
> {
> struct vhost_net_virtqueue *rnvq = &net->vqs[VHOST_NET_VQ_RX];
> struct vhost_net_virtqu...
2018 Jul 03
11
[PATCH v2 net-next 0/4] vhost_net: Avoid vq kicks during busyloop
Under heavy load vhost tx busypoll tend not to suppress vq kicks, which
causes poor guest tx performance. The detailed scenario is described in
commitlog of patch 2.
Rx seems not to have that serious problem, but for consistency I made a
similar change on rx to avoid rx wakeups (patch 3).
Additionary patch 4 is to avoid rx kicks under heavy load during
busypoll.
Tx performance is greatly improved
2018 Jul 03
0
[PATCH v2 net-next 4/4] vhost_net: Avoid rx vring kicks during busyloop
...e exited prematurely. Avoid this by
checking rx ring full during busypoll.
Signed-off-by: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>
---
drivers/vhost/net.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 791bc8b..b224036 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -658,6 +658,7 @@ static int vhost_net_rx_peek_head_len(struct vhost_net *net, struct sock *sk,
{
struct vhost_net_virtqueue *rnvq = &net->vqs[VHOST_NET_VQ_RX];
struct vhost_net_virtqueue *tnvq = &net->vqs[VHOS...
2018 Jul 03
0
[PATCH v2 net-next 3/4] vhost_net: Avoid rx queue wake-ups during busypoll
...ups, so poll rx work instead of enabling the vq.
Signed-off-by: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>
---
drivers/vhost/net.c | 26 +++++++++++++++++++-------
1 file changed, 19 insertions(+), 7 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 811c0e5..791bc8b 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -653,7 +653,8 @@ static void vhost_rx_signal_used(struct vhost_net_virtqueue *nvq)
nvq->done_idx = 0;
}
-static int vhost_net_rx_peek_head_len(struct vhost_net *net, struct sock *sk)
+static int vhost_net_rx_peek_head_len(struct...
2018 Jul 04
0
[PATCH v2 net-next 4/4] vhost_net: Avoid rx vring kicks during busyloop
...ally full.
>> Signed-off-by: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>
>> ---
>> ? drivers/vhost/net.c | 10 +++++++---
>> ? 1 file changed, 7 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
>> index 791bc8b..b224036 100644
>> --- a/drivers/vhost/net.c
>> +++ b/drivers/vhost/net.c
>> @@ -658,6 +658,7 @@ static int vhost_net_rx_peek_head_len(struct
>> vhost_net *net, struct sock *sk,
>> ? {
>> ????? struct vhost_net_virtqueue *rnvq = &net->vqs[VHOST_NET_VQ_RX];...