diff options
| author |   Eric Dumazet <edumazet@google.com> | 2016-06-21 23:16:50 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-06-25 12:19:35 -0400 |
| commit | 008830bc321c0fc22c0db8d5b0b56f854ed90a5c (patch) | |
| tree | 99d4bfa6d32a42e48b598223a5443eb3443ca532 /include/net/codel_qdisc.h | |
| parent | net_sched: drop packets after root qdisc lock is released (diff) | |
| download | linux-dev-008830bc321c0fc22c0db8d5b0b56f854ed90a5c.tar.xz linux-dev-008830bc321c0fc22c0db8d5b0b56f854ed90a5c.zip | |
net_sched: fq_codel: cache skb->truesize into skb->cb
Now we defer skb drops, it makes sense to keep a copy
of skb->truesize in struct codel_skb_cb to avoid one
cache line miss per dropped skb in fq_codel_drop(),
to reduce latencies a bit further.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/codel_qdisc.h')
| -rw-r--r-- | include/net/codel_qdisc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/codel_qdisc.h b/include/net/codel_qdisc.h index 8144d9cd2908..098630f83a55 100644 --- a/include/net/codel_qdisc.h +++ b/include/net/codel_qdisc.h @@ -52,6 +52,7 @@ /* Qdiscs using codel plugin must use codel_skb_cb in their own cb[] */ struct codel_skb_cb { codel_time_t enqueue_time; + unsigned int mem_usage; }; static struct codel_skb_cb *get_codel_cb(const struct sk_buff *skb) |