Haiyang Zhang 562b1fdf06 tcp: Set pingpong threshold via sysctl ... TCP pingpong threshold is 1 by default. But some applications, like SQL DB may prefer a higher pingpong threshold to activate delayed acks in quick ack mode for better performance. The pingpong threshold and related code were changed to 3 in the year 2019 in: commit 4a41f453be ("tcp: change pingpong threshold to 3") And reverted to 1 in the year 2022 in: commit 4d8f24eeed ("Revert "tcp: change pingpong threshold to 3"") There is no single value that fits all applications. Add net.ipv4.tcp_pingpong_thresh sysctl tunable, so it can be tuned for optimal performance based on the application needs. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/1697056244-21888-1-git-send-email-haiyangz@microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2023-10-16 14:55:32 -07:00
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6lowpan
9p	net: annotate data-races around sock->ops	2023-08-09 15:32:43 -07:00
802
8021q	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-08-18 12:44:56 -07:00
appletalk	appletalk: remove special handling code for ipddp	2023-10-13 17:59:32 -07:00
atm	sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)	2023-06-24 15:50:13 -07:00
ax25	net: implement lockless SO_PRIORITY	2023-10-01 19:09:54 +01:00
batman-adv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-08-24 10:51:39 -07:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-05 13:16:47 -07:00
bpf	bpf: Prevent inlining of bpf_fentry_test7()	2023-08-30 08:36:17 +02:00
bpfilter	net: Use umd_cleanup_helper()	2023-05-31 13:06:57 +02:00
bridge	net: Handle bulk delete policy in bridge driver	2023-10-13 10:00:30 +01:00
caif	sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)	2023-06-24 15:50:13 -07:00
can	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-12 17:07:34 -07:00
ceph	ceph: Annotate struct ceph_monmap with __counted_by	2023-09-18 10:39:29 +01:00
core	net, sched: Make tc-related drop reason more flexible	2023-10-16 10:07:36 -07:00
dcb	net: dcb: choose correct policy to parse DCB_ATTR_BCN	2023-08-01 21:07:46 -07:00
dccp	tcp: record last received ipv6 flowlabel	2023-10-10 10:02:59 +02:00
devlink	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-12 17:07:34 -07:00
dns_resolver
dsa	net: dsa: remove dsa_port_phylink_validate()	2023-10-11 10:06:05 +01:00
ethernet
ethtool	ethtool: Fix mod state of verbose no_mask bitset	2023-10-10 19:48:15 -07:00
handshake	handshake: Fix sign of key_serial_t fields	2023-10-02 12:34:21 -07:00
hsr	net: hsr: Add __packed to struct hsr_sup_tlv.	2023-09-18 08:26:19 +01:00
ieee802154	sysctl-6.6-rc1	2023-08-29 17:39:15 -07:00
ife
ipv4	tcp: Set pingpong threshold via sysctl	2023-10-16 14:55:32 -07:00
ipv6	net: fix IPSTATS_MIB_OUTFORWDATAGRAMS increment after fragment check	2023-10-13 09:58:45 -07:00
iucv
kcm	kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg().	2023-09-14 10:43:51 +02:00
key	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-08-18 12:44:56 -07:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-05 13:16:47 -07:00
l3mdev
lapb
llc	net/llc/llc_conn.c: fix 4 instances of -Wmissing-variable-declarations	2023-08-09 15:34:28 -07:00
mac80211	Merge wireless into wireless-next	2023-10-06 17:08:47 +03:00
mac802154	Core WPAN changes:	2023-06-24 15:41:46 -07:00
mctp	mctp: perform route lookups under a RCU read-side lock	2023-10-10 19:43:22 -07:00
mpls	networking: Update to register_net_sysctl_sz	2023-08-15 15:26:18 -07:00
mptcp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-05 13:16:47 -07:00
ncsi	ncsi: Propagate carrier gain/loss events to the NCSI controller	2023-09-18 07:06:05 +01:00
netfilter	netfilter: conntrack: prefer tcp_error_log to pr_debug	2023-10-10 16:34:28 +02:00
netlabel	netlabel: Remove unused declaration netlbl_cipsov4_doi_free()	2023-08-02 12:28:22 -07:00
netlink	netlink: Annotate struct netlink_policy_dump_state with __counted_by	2023-10-06 10:48:46 +01:00
netrom	net: implement lockless SO_PRIORITY	2023-10-01 19:09:54 +01:00
nfc	nfc: nci: assert requested protocol is valid	2023-10-12 09:32:10 +02:00
nsh	net: move gso declarations and functions to their own files	2023-06-10 00:11:41 -07:00
openvswitch	net: openvswitch: Annotate struct dp_meter with __counted_by	2023-10-02 11:24:55 -07:00
packet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-12 17:07:34 -07:00
phonet	sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)	2023-06-24 15:50:13 -07:00
psample
qrtr	net: qrtr: Handle IPCR control port format of older targets	2023-07-17 09:02:30 +01:00
rds	net: prevent address rewrite in kernel_bind()	2023-10-01 19:31:29 +01:00
rfkill	rfkill: sync before userspace visibility/changes	2023-09-18 09:36:57 +02:00
rose	net: implement lockless SO_PRIORITY	2023-10-01 19:09:54 +01:00
rxrpc	Networking changes for 6.5.	2023-06-28 16:43:10 -07:00
sched	net, sched: Add tcf_set_drop_reason for {__,}tcf_classify	2023-10-16 10:07:37 -07:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-05 13:16:47 -07:00
smc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-12 17:07:34 -07:00
strparser
sunrpc	SUNRPC/TLS: Lock the lower_xprt during the tls handshake	2023-09-27 15:16:40 -04:00
switchdev	net: switchdev: Add a helper to replay objects on a bridge port	2023-07-21 08:54:03 +01:00
tipc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-05 13:16:47 -07:00
tls	tls: use fixed size for tls_offload_context_{tx,rx}.driver_state	2023-10-13 11:26:10 +01:00
unix	Including fixes from netfilter and bpf.	2023-09-07 18:33:07 -07:00
vmw_vsock	vsock: enable setting SO_ZEROCOPY	2023-10-15 13:19:42 +01:00
wireless	Merge wireless into wireless-next	2023-10-06 17:08:47 +03:00
x25	net: implement lockless SO_PRIORITY	2023-10-01 19:09:54 +01:00
xdp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-10-12 17:07:34 -07:00
xfrm	net: dst: remove unnecessary input parameter in dst_alloc and dst_init	2023-09-12 11:42:25 +02:00
compat.c
devres.c
Kconfig	net: add skb_segment kunit test	2023-10-11 10:39:01 +01:00
Kconfig.debug
Makefile
socket.c	net: prevent address rewrite in kernel_bind()	2023-10-01 19:31:29 +01:00
sysctl_net.c	sysctl: Add size to register_net_sysctl function	2023-08-15 15:26:17 -07:00