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yongduan 50510cbbef net: rps using pvipi 
In the virtualization scenario, you can use pvipi to optimize the sending of
IPI interrupts and reduce the number of vmexit.

rps_using_pvipi test
Test guest: 32 core, 64G memory, virtio-net 8 queues, rss interrupt is bound
to 24-31 core. Observe the number of vmexit of 31 cores.

1. 1000000pps
100 iperf instances, 10000pps per instance.
disable rps_using_pvipi  68077 vmexit/s
enable  rps_using_pvipi  21138 vmexit/s

2. 2000000pps
1000 iperf instances, 2000pps per instance.
disable rps_using_pvipi  40879 vmexit/s
enable  rps_using_pvipi  9195  vmexit/s

3. 2000000pps
2000 iperf instances, 1000pps per instance.
disable rps_using_pvipi  24746 vmexit/s
enable  rps_using_pvipi  7292  vmexit/s

Enabling rps_using_pvipi can greatly reduce the number of vmexit.

Signed-off-by: yongduan <yongduan@tencent.com>
Reviewed-by: Jiang Biao <benbjiang@tencent.com>
 		2021-03-19 08:24:58 +00:00
..
6lowpan Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
9p net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid 2021-03-16 16:39:51 +08:00
802 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
8021q Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
appletalk appletalk: Fix atalk_proc_init() return path 2021-03-16 16:33:09 +08:00
atm atm: fix a memory leak of vcc->user_back 2021-03-16 16:37:15 +08:00
ax25 AX.25: Prevent integer overflows in connect and sendmsg 2021-03-16 16:32:42 +08:00
batman-adv batman-adv: set .owner to THIS_MODULE 2021-03-16 16:41:41 +08:00
bluetooth Bluetooth: Fix null pointer dereference in hci_event_packet() 2021-03-16 16:42:42 +08:00
bpf Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
bpfilter net/bpfilter: remove superfluous testing message 2021-03-16 16:26:23 +08:00
bridge bridge: Fix a deadlock when enabling multicast snooping 2021-03-16 16:42:17 +08:00
caif Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
can can: af_can: can_rx_unregister(): remove WARN() statement from list operation sanity check 2021-03-16 16:42:06 +08:00
ceph libceph: clear con->out_msg on Policy::stateful_server faults 2021-03-16 16:40:11 +08:00
core net: rps using pvipi 2021-03-19 08:24:58 +00:00
dcb net: DCB: Validate DCB_ATTR_DCB_BUFFER argument 2021-03-16 16:36:26 +08:00
dccp dccp: Fix possible memleak in dccp_init and dccp_fini 2021-03-16 16:29:07 +08:00
decnet Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
dns_resolver KEYS: Don't write out to userspace while holding key semaphore 2021-03-16 16:26:42 +08:00
dsa dsa: Allow forwarding of redirected IGMP traffic 2021-03-16 16:36:11 +08:00
ethernet Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
hsr hsr: check protocol version in hsr_newlink() 2021-03-16 16:26:20 +08:00
ieee802154 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
ife Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
ipv4 net: change TCP_TIMEWAIT_LEN on runtime 2021-03-16 16:43:58 +08:00
ipv6 netfilter: x_tables: Switch synchronization to RCU 2021-03-16 16:42:26 +08:00
iucv net/af_iucv: set correct sk_protocol for child sockets 2021-03-16 16:41:52 +08:00
kcm Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
key af_key: pfkey_dump needs parameter validation 2021-03-16 16:36:23 +08:00
l2tp l2tp: remove skb_dst_set() from l2tp_xmit_skb() 2021-03-16 16:31:43 +08:00
l3mdev Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
lapb Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
llc net: silence data-races on sk_backlog.tail 2021-03-16 16:36:36 +08:00
mac80211 mac80211: don't set set TDLS STA bandwidth wider than possible 2021-03-16 16:43:12 +08:00
mac802154 mac802154: tx: fix use-after-free 2021-03-16 16:37:33 +08:00
mpls Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
ncsi net/ncsi: Fix netlink registration 2021-03-16 16:41:09 +08:00
netfilter nf_conntrack: add tencent cloud vpcid vmip extend 2021-03-16 16:43:57 +08:00
netlabel netlabel: fix an uninitialized warning in netlbl_unlabel_staticlist() 2021-03-16 16:41:06 +08:00
netlink genetlink: remove genl_bind 2021-03-16 16:31:42 +08:00
netrom net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node 2021-03-16 16:26:51 +08:00
nfc nfc: Ensure presence of NFC_ATTR_FIRMWARE_NAME attribute in nfc_genl_fw_download() 2021-03-16 16:38:18 +08:00
nsh Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
openvswitch net: openvswitch: ensure LSE is pullable before reading it 2021-03-16 16:41:57 +08:00
packet af_packet: TPACKET_V3: fix fill status rwlock imbalance 2021-03-16 16:33:48 +08:00
phonet Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
psample Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
qrtr net: qrtr: check skb_put_padto() return value 2021-03-16 16:36:30 +08:00
rds rds: Prevent kernel-infoleak in rds_notify_queue_get() 2021-03-16 16:32:48 +08:00
rfkill rfkill: Fix use-after-free in rfkill_resume() 2021-03-16 16:41:16 +08:00
rose rose: Fix Null pointer dereference in rose_send_frame() 2021-03-16 16:41:52 +08:00
rxrpc rxrpc: Fix server keyring leak 2021-03-16 16:38:05 +08:00
sched net/sched: sch_taprio: reset child qdiscs before freeing them 2021-03-16 16:43:47 +08:00
sctp sctp: change to hold/put transport for proto_unreach_timer 2021-03-16 16:41:08 +08:00
smc net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_gid() 2021-03-16 16:41:07 +08:00
strparser Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
sunrpc xprtrdma: Fix XDRBUF_SPARSE_PAGES support 2021-03-16 16:43:33 +08:00
switchdev Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
tipc tipc: fix a deadlock when flushing scheduled work 2021-03-16 16:42:07 +08:00
tls net/tls: Protect from calling tls_dev_del for TLS RX twice 2021-03-16 16:41:52 +08:00
toa Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
unix skbuff: fix a data race in skb_queue_len() 2021-03-16 16:36:50 +08:00
vmw_vsock vsock: use ns_capable_noaudit() on socket create 2021-03-16 16:40:26 +08:00
wimax Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
wireless cfg80211: initialize rekey_data 2021-03-16 16:43:20 +08:00
x25 net/x25: prevent a couple of overflows 2021-03-16 16:41:56 +08:00
xdp xsk: Replace datagram_poll by sock_poll_wait 2021-03-16 16:42:25 +08:00
xfrm net: xfrm: fix a race condition during allocing spi 2021-03-16 16:40:34 +08:00
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Makefile Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
compat.c net/compat: Add missing sock updates for SCM_RIGHTS 2021-03-16 16:34:05 +08:00
socket.c net: Set fput_needed iff FDPUT_FPUT is set 2021-03-16 16:33:49 +08:00
sysctl_net.c Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00