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e8648a1fdb
In some situations a CPU match permits a better spreading of
connections, or select targets only for a given cpu.
With Remote Packet Steering or multiqueue NIC and appropriate IRQ
affinities, we can distribute trafic on available cpus, per session.
(all RX packets for a given flow is handled by a given cpu)
Some legacy applications being not SMP friendly, one way to scale a
server is to run multiple copies of them.
Instead of randomly choosing an instance, we can use the cpu number as a
key so that softirq handler for a whole instance is running on a single
cpu, maximizing cache effects in TCP/UDP stacks.
Using NAT for example, a four ways machine might run four copies of
server application, using a separate listening port for each instance,
but still presenting an unique external port :
iptables -t nat -A PREROUTING -p tcp --dport 80 -m cpu --cpu 0 \
-j REDIRECT --to-port 8080
iptables -t nat -A PREROUTING -p tcp --dport 80 -m cpu --cpu 1 \
-j REDIRECT --to-port 8081
iptables -t nat -A PREROUTING -p tcp --dport 80 -m cpu --cpu 2 \
-j REDIRECT --to-port 8082
iptables -t nat -A PREROUTING -p tcp --dport 80 -m cpu --cpu 3 \
-j REDIRECT --to-port 8083
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
106 lines
4.8 KiB
Makefile
106 lines
4.8 KiB
Makefile
netfilter-objs := core.o nf_log.o nf_queue.o nf_sockopt.o
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nf_conntrack-y := nf_conntrack_core.o nf_conntrack_standalone.o nf_conntrack_expect.o nf_conntrack_helper.o nf_conntrack_proto.o nf_conntrack_l3proto_generic.o nf_conntrack_proto_generic.o nf_conntrack_proto_tcp.o nf_conntrack_proto_udp.o nf_conntrack_extend.o nf_conntrack_acct.o
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nf_conntrack-$(CONFIG_NF_CONNTRACK_EVENTS) += nf_conntrack_ecache.o
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obj-$(CONFIG_NETFILTER) = netfilter.o
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obj-$(CONFIG_NETFILTER_NETLINK) += nfnetlink.o
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obj-$(CONFIG_NETFILTER_NETLINK_QUEUE) += nfnetlink_queue.o
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obj-$(CONFIG_NETFILTER_NETLINK_LOG) += nfnetlink_log.o
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# connection tracking
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obj-$(CONFIG_NF_CONNTRACK) += nf_conntrack.o
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# SCTP protocol connection tracking
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obj-$(CONFIG_NF_CT_PROTO_DCCP) += nf_conntrack_proto_dccp.o
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obj-$(CONFIG_NF_CT_PROTO_GRE) += nf_conntrack_proto_gre.o
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obj-$(CONFIG_NF_CT_PROTO_SCTP) += nf_conntrack_proto_sctp.o
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obj-$(CONFIG_NF_CT_PROTO_UDPLITE) += nf_conntrack_proto_udplite.o
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# netlink interface for nf_conntrack
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obj-$(CONFIG_NF_CT_NETLINK) += nf_conntrack_netlink.o
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# connection tracking helpers
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nf_conntrack_h323-objs := nf_conntrack_h323_main.o nf_conntrack_h323_asn1.o
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obj-$(CONFIG_NF_CONNTRACK_AMANDA) += nf_conntrack_amanda.o
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obj-$(CONFIG_NF_CONNTRACK_FTP) += nf_conntrack_ftp.o
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obj-$(CONFIG_NF_CONNTRACK_H323) += nf_conntrack_h323.o
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obj-$(CONFIG_NF_CONNTRACK_IRC) += nf_conntrack_irc.o
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obj-$(CONFIG_NF_CONNTRACK_NETBIOS_NS) += nf_conntrack_netbios_ns.o
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obj-$(CONFIG_NF_CONNTRACK_PPTP) += nf_conntrack_pptp.o
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obj-$(CONFIG_NF_CONNTRACK_SANE) += nf_conntrack_sane.o
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obj-$(CONFIG_NF_CONNTRACK_SIP) += nf_conntrack_sip.o
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obj-$(CONFIG_NF_CONNTRACK_TFTP) += nf_conntrack_tftp.o
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# transparent proxy support
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obj-$(CONFIG_NETFILTER_TPROXY) += nf_tproxy_core.o
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# generic X tables
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obj-$(CONFIG_NETFILTER_XTABLES) += x_tables.o xt_tcpudp.o
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# combos
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obj-$(CONFIG_NETFILTER_XT_MARK) += xt_mark.o
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obj-$(CONFIG_NETFILTER_XT_CONNMARK) += xt_connmark.o
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# targets
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obj-$(CONFIG_NETFILTER_XT_TARGET_CHECKSUM) += xt_CHECKSUM.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_CLASSIFY) += xt_CLASSIFY.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_CONNSECMARK) += xt_CONNSECMARK.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_CT) += xt_CT.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_HL) += xt_HL.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_NFLOG) += xt_NFLOG.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_NFQUEUE) += xt_NFQUEUE.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_NOTRACK) += xt_NOTRACK.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_RATEEST) += xt_RATEEST.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_SECMARK) += xt_SECMARK.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_TPROXY) += xt_TPROXY.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_TCPMSS) += xt_TCPMSS.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP) += xt_TCPOPTSTRIP.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_TEE) += xt_TEE.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_TRACE) += xt_TRACE.o
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obj-$(CONFIG_NETFILTER_XT_TARGET_IDLETIMER) += xt_IDLETIMER.o
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# matches
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obj-$(CONFIG_NETFILTER_XT_MATCH_CLUSTER) += xt_cluster.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_COMMENT) += xt_comment.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_CONNBYTES) += xt_connbytes.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_CONNLIMIT) += xt_connlimit.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_CONNTRACK) += xt_conntrack.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_CPU) += xt_cpu.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_DCCP) += xt_dccp.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_IPRANGE) += xt_iprange.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_IPVS) += xt_ipvs.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_LENGTH) += xt_length.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_LIMIT) += xt_limit.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_MAC) += xt_mac.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_MULTIPORT) += xt_multiport.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_OSF) += xt_osf.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_OWNER) += xt_owner.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_PHYSDEV) += xt_physdev.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_PKTTYPE) += xt_pkttype.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_POLICY) += xt_policy.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_QUOTA) += xt_quota.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_RATEEST) += xt_rateest.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_REALM) += xt_realm.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_RECENT) += xt_recent.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_SCTP) += xt_sctp.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_SOCKET) += xt_socket.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_STATE) += xt_state.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_STATISTIC) += xt_statistic.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_STRING) += xt_string.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_TCPMSS) += xt_tcpmss.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_TIME) += xt_time.o
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obj-$(CONFIG_NETFILTER_XT_MATCH_U32) += xt_u32.o
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# IPVS
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obj-$(CONFIG_IP_VS) += ipvs/
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