Paolo Abeni 850cbaddb5 udp: use it's own memory accounting schema ... Completely avoid default sock memory accounting and replace it with udp-specific accounting. Since the new memory accounting model encapsulates completely the required locking, remove the socket lock on both enqueue and dequeue, and avoid using the backlog on enqueue. Be sure to clean-up rx queue memory on socket destruction, using udp its own sk_destruct. Tested using pktgen with random src port, 64 bytes packet, wire-speed on a 10G link as sender and udp_sink as the receiver, using an l4 tuple rxhash to stress the contention, and one or more udp_sink instances with reuseport. nr readers Kpps (vanilla) Kpps (patched) 1 170 440 3 1250 2150 6 3000 3650 9 4200 4450 12 5700 6250 v4 -> v5: - avoid unneeded test in first_packet_length v3 -> v4: - remove useless sk_rcvqueues_full() call v2 -> v3: - do not set the now unsed backlog_rcv callback v1 -> v2: - add memory pressure support - fixed dropwatch accounting for ipv6 Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-10-22 17:05:05 -04:00
..
auth_gss	NFS client updates for Linux 4.9	2016-10-13 21:28:20 -07:00
xprtrdma	NFS client updates for Linux 4.9	2016-10-13 21:28:20 -07:00
addr.c
auth.c	sunrpc: replace generic auth_cred hash with auth-specific function	2016-09-30 15:47:47 -04:00
auth_generic.c	NFS client updates for Linux 4.9	2016-10-13 21:28:20 -07:00
auth_null.c
auth_unix.c	NFS client updates for Linux 4.9	2016-10-13 21:28:20 -07:00
backchannel_rqst.c
cache.c
clnt.c
debugfs.c
Kconfig
Makefile
netns.h
rpc_pipe.c	fs: Replace CURRENT_TIME with current_time() for inode timestamps	2016-09-27 21:06:21 -04:00
rpcb_clnt.c
sched.c
socklib.c
stats.c
sunrpc.h
sunrpc_syms.c
svc.c
svc_xprt.c
svcauth.c
svcauth_unix.c	cred: simpler, 1D supplementary groups	2016-10-07 18:46:30 -07:00
svcsock.c	udp: use it's own memory accounting schema	2016-10-22 17:05:05 -04:00
sysctl.c
timer.c
xdr.c
xprt.c
xprtmultipath.c
xprtsock.c	udp: use it's own memory accounting schema	2016-10-22 17:05:05 -04:00