Displaying 20 results from an estimated 20 matches for "gfp_wait".
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gfp_nowait
2013 Dec 23
1
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
On Mon, 2013-12-23 at 14:53 +0200, Michael S. Tsirkin wrote:
> On Mon, Dec 16, 2013 at 04:16:27PM -0800, Michael Dalton wrote:
> > skb_page_frag_refill currently permits only order-0 page allocs
> > unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
> > higher-order page allocations whether or not GFP_WAIT is used. If
> > memory cannot be allocated, the allocator will fall back to
> > successively smaller page allocs (down to order-0 page allocs).
> >
> > This chang...
2013 Dec 23
1
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
On Mon, 2013-12-23 at 14:53 +0200, Michael S. Tsirkin wrote:
> On Mon, Dec 16, 2013 at 04:16:27PM -0800, Michael Dalton wrote:
> > skb_page_frag_refill currently permits only order-0 page allocs
> > unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
> > higher-order page allocations whether or not GFP_WAIT is used. If
> > memory cannot be allocated, the allocator will fall back to
> > successively smaller page allocs (down to order-0 page allocs).
> >
> > This chang...
2013 Nov 12
0
[PATCH net-next 2/4] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the exi...
2013 Dec 23
0
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
On 12/17/2013 08:16 AM, Michael Dalton wrote:
> skb_page_frag_refill currently permits only order-0 page allocs
> unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
> higher-order page allocations whether or not GFP_WAIT is used. If
> memory cannot be allocated, the allocator will fall back to
> successively smaller page allocs (down to order-0 page allocs).
>
> This change brings skb_page_frag_ref...
2013 Dec 23
0
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
On Mon, Dec 16, 2013 at 04:16:27PM -0800, Michael Dalton wrote:
> skb_page_frag_refill currently permits only order-0 page allocs
> unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
> higher-order page allocations whether or not GFP_WAIT is used. If
> memory cannot be allocated, the allocator will fall back to
> successively smaller page allocs (down to order-0 page allocs).
>
> This change brings skb_page_frag_re...
2014 Jan 08
0
[PATCH net-next v2 1/4] net: allow > 0 order atomic page alloc in skb_page_frag_refill
On Mon, Jan 06, 2014 at 09:25:52PM -0800, Michael Dalton wrote:
> skb_page_frag_refill currently permits only order-0 page allocs
> unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
> higher-order page allocations whether or not GFP_WAIT is used. If
> memory cannot be allocated, the allocator will fall back to
> successively smaller page allocs (down to order-0 page allocs).
>
> This change brings skb_page_frag_re...
2013 Dec 17
15
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the exi...
2013 Dec 17
15
[PATCH net-next 1/3] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the exi...
2013 Nov 12
12
[PATCH net-next 1/4] virtio-net: mergeable buffer size should include virtio-net header
...return -ENOMEM;
- skb_put(skb, MAX_PACKET_LEN);
+ skb_put(skb, GOOD_PACKET_LEN);
hdr = skb_vnet_hdr(skb);
sg_set_buf(rq->sg, &hdr->hdr, sizeof hdr->hdr);
@@ -542,20 +544,20 @@ static int add_recvbuf_mergeable(struct receive_queue *rq, gfp_t gfp)
int err;
if (gfp & __GFP_WAIT) {
- if (skb_page_frag_refill(MAX_PACKET_LEN, &vi->alloc_frag,
+ if (skb_page_frag_refill(MERGE_BUFFER_LEN, &vi->alloc_frag,
gfp)) {
buf = (char *)page_address(vi->alloc_frag.page) +
vi->alloc_frag.offset;
get_page(vi->alloc_frag.page);
- vi->a...
2013 Nov 12
12
[PATCH net-next 1/4] virtio-net: mergeable buffer size should include virtio-net header
...return -ENOMEM;
- skb_put(skb, MAX_PACKET_LEN);
+ skb_put(skb, GOOD_PACKET_LEN);
hdr = skb_vnet_hdr(skb);
sg_set_buf(rq->sg, &hdr->hdr, sizeof hdr->hdr);
@@ -542,20 +544,20 @@ static int add_recvbuf_mergeable(struct receive_queue *rq, gfp_t gfp)
int err;
if (gfp & __GFP_WAIT) {
- if (skb_page_frag_refill(MAX_PACKET_LEN, &vi->alloc_frag,
+ if (skb_page_frag_refill(MERGE_BUFFER_LEN, &vi->alloc_frag,
gfp)) {
buf = (char *)page_address(vi->alloc_frag.page) +
vi->alloc_frag.offset;
get_page(vi->alloc_frag.page);
- vi->a...
2014 Jan 17
7
[PATCH net-next v5 0/6] virtio-net: mergeable rx buffer size auto-tuning
The virtio-net device currently uses aligned MTU-sized mergeable receive
packet buffers. Network throughput for workloads with large average
packet size can be improved by posting larger receive packet buffers.
However, due to SKB truesize effects, posting large (e.g, PAGE_SIZE)
buffers reduces the throughput of workloads that do not benefit from GRO
and have no large inbound packets.
This
2014 Jan 17
7
[PATCH net-next v5 0/6] virtio-net: mergeable rx buffer size auto-tuning
The virtio-net device currently uses aligned MTU-sized mergeable receive
packet buffers. Network throughput for workloads with large average
packet size can be improved by posting larger receive packet buffers.
However, due to SKB truesize effects, posting large (e.g, PAGE_SIZE)
buffers reduces the throughput of workloads that do not benefit from GRO
and have no large inbound packets.
This
2014 Jan 17
7
[PATCH net-next v6 0/6] virtio-net: mergeable rx buffer size auto-tuning
The virtio-net device currently uses aligned MTU-sized mergeable receive
packet buffers. Network throughput for workloads with large average
packet size can be improved by posting larger receive packet buffers.
However, due to SKB truesize effects, posting large (e.g, PAGE_SIZE)
buffers reduces the throughput of workloads that do not benefit from GRO
and have no large inbound packets.
This
2014 Jan 17
7
[PATCH net-next v6 0/6] virtio-net: mergeable rx buffer size auto-tuning
The virtio-net device currently uses aligned MTU-sized mergeable receive
packet buffers. Network throughput for workloads with large average
packet size can be improved by posting larger receive packet buffers.
However, due to SKB truesize effects, posting large (e.g, PAGE_SIZE)
buffers reduces the throughput of workloads that do not benefit from GRO
and have no large inbound packets.
This
2014 Jan 16
6
[PATCH net-next v3 1/5] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the exi...
2014 Jan 16
6
[PATCH net-next v3 1/5] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the exi...
2014 Jan 07
10
[PATCH net-next v2 1/4] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the exi...
2014 Jan 07
10
[PATCH net-next v2 1/4] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the exi...
2014 Jan 16
13
[PATCH net-next v4 1/6] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the exi...
2014 Jan 16
13
[PATCH net-next v4 1/6] net: allow > 0 order atomic page alloc in skb_page_frag_refill
skb_page_frag_refill currently permits only order-0 page allocs
unless GFP_WAIT is used. Change skb_page_frag_refill to attempt
higher-order page allocations whether or not GFP_WAIT is used. If
memory cannot be allocated, the allocator will fall back to
successively smaller page allocs (down to order-0 page allocs).
This change brings skb_page_frag_refill in line with the exi...