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| author |   Peter Oskolkov <posk@google.com> | 2018-08-11 20:27:25 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-08-11 17:54:18 -0700 |
| commit | a4fd284a1f8fd4b6c59aa59db2185b1e17c5c11c (patch) | |
| tree | d75f09d0acf9a10a81723bd1a2028f555e9dc54c /net/ipv4/inet_fragment.c | |
| parent | ip: add helpers to process in-order fragments faster. (diff) | |
| download | linux-dev-a4fd284a1f8fd4b6c59aa59db2185b1e17c5c11c.tar.xz linux-dev-a4fd284a1f8fd4b6c59aa59db2185b1e17c5c11c.zip | |
ip: process in-order fragments efficiently
This patch changes the runtime behavior of IP defrag queue:
incoming in-order fragments are added to the end of the current
list/"run" of in-order fragments at the tail.
On some workloads, UDP stream performance is substantially improved:
RX: ./udp_stream -F 10 -T 2 -l 60
TX: ./udp_stream -c -H <host> -F 10 -T 5 -l 60
with this patchset applied on a 10Gbps receiver:
throughput=9524.18
throughput_units=Mbit/s
upstream (net-next):
throughput=4608.93
throughput_units=Mbit/s
Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Peter Oskolkov <posk@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_fragment.c')
| -rw-r--r-- | net/ipv4/inet_fragment.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index 6d258a5669e7..bcb11f3a27c0 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -146,7 +146,7 @@ void inet_frag_destroy(struct inet_frag_queue *q) fp = xp; } while (fp); } else { - sum_truesize = skb_rbtree_purge(&q->rb_fragments); + sum_truesize = inet_frag_rbtree_purge(&q->rb_fragments); } sum = sum_truesize + f->qsize; |