TCP slowdown on interactive traffic

Pedro Roque (roque@di.fc.ul.pt)
Wed, 13 Nov 1996 16:43:22 GMT

I think i got the bug that does the slowdowns on interactive traffic.
We are not sending the push flag on data. Some systems (NT specially)
delay the deliver to the application... This shows up a lot.
I'd comment this out just for debugging purposes... silly.

please try the enclosed patch.

regards,
./Pedro.

Index: net/ipv4/tcp.c
===================================================================
RCS file: /public/cvsroot/linux/net/ipv4/tcp.c,v
retrieving revision 1.24
diff -u -r1.24 tcp.c
--- tcp.c 1996/11/12 16:29:36 1.24
+++ tcp.c 1996/11/13 16:46:59
@@ -704,9 +704,9 @@
struct tcp_opt *tp=&(sk->tp_pinfo.af_tcp);
memcpy(th,(void *) &(sk->dummy_th), sizeof(*th));
th->seq = htonl(sk->write_seq);
-#if 0
+
th->psh =(push == 0) ? 1 : 0;
-#endif
+
sk->bytes_rcv = 0;
sk->ack_timed = 0;
th->ack_seq = htonl(tp->rcv_nxt);