skb_orphan() is not the way to go.
Can someone try the following patch ?
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index
4e985dea1dd24fdecfbf9b47d51cff698e97cd2f..5f394f2f524f6ac8d8d9bef50a1bfc99397d6724
100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2158,7 +2158,7 @@ static bool tcp_pacing_check(const struct sock *sk)
}
/* TCP Small Queues :
- * Control number of packets in qdisc/devices to two packets / or ~1 ms.
+ * Control number of packets in qdisc/devices to two packets / or ~4 ms.
* (These limits are doubled for retransmits)
* This allows for :
* - better RTT estimation and ACK scheduling
@@ -2173,7 +2173,7 @@ static bool tcp_small_queue_check(struct sock *sk, const
struct sk_buff *skb,
{
unsigned int limit;
- limit = max(2 * skb->truesize, sk->sk_pacing_rate >> 10);
+ limit = max(2 * skb->truesize, sk->sk_pacing_rate >> 8);
limit = min_t(u32, limit, sysctl_tcp_limit_output_bytes);
limit <<= factor;
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https://bugs.launchpad.net/bugs/1670041
Title:
Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless
1535)
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