xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rxrpc: Reduce the number of ACK-Requests sent

Browse Source 
Reduce the number of ACK-Requests we set on DATA packets that we're sending
to reduce network traffic.  We set the flag on odd-numbered DATA packets to
start off the RTT cache until we have at least three entries in it and then
probe once per second thereafter to keep it topped up.

This could be made tunable in future.

Note that from this point, the RXRPC_REQUEST_ACK flag is set on DATA
packets as we transmit them and not stored statically in the sk_buff.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2016-09-22 00:29:31 +01:00
parent 50235c4b5a
commit 0d4b103c00
4 changed files with 13 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/rxrpc/sendmsg.c
View File

@@ -299,8 +299,6 @@ static int rxrpc_send_data(struct rxrpc_sock *rx,
else if (call->tx_top - call->tx_hard_ack <
call->tx_winsize)
sp->hdr.flags |= RXRPC_MORE_PACKETS;
if (seq & 1)
sp->hdr.flags |= RXRPC_REQUEST_ACK;
ret = conn->security->secure_packet(
call, skb, skb->mark, skb->head);