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Optimization #583
closedimprove Packet_ structure layout
Effort:
Difficulty:
Label:
Description
struct Packet_ {
Address src; /* 0 20 */
Address dst; /* 20 20 */
union {
Port sp; /* 2 */
uint8_t type; /* 1 */
}; /* 40 2 */
union {
Port dp; /* 2 */
uint8_t code; /* 1 */
}; /* 42 2 */
uint8_t proto; /* 44 1 */
uint8_t recursion_level; /* 45 1 */
uint16_t flags; /* 46 2 */
uint8_t flowflags; /* 48 1 */
uint8_t pkt_src; /* 49 1 */
/* XXX 6 bytes hole, try to pack */
struct Flow_ * flow; /* 56 8 */
/* --- cacheline 1 boundary (64 bytes) --- */
struct timeval ts; /* 64 16 */
union {
AFPPacketVars afp_v; /* 32 */
PcapPacketVars pcap_v; /* 0 */
}; /* 80 32 */
int datalink; /* 112 4 */
uint8_t action; /* 116 1 */
/* XXX 3 bytes hole, try to pack */
int debuglog_flowbits_names_len; /* 120 4 */
/* XXX 4 bytes hole, try to pack */
/* --- cacheline 2 boundary (128 bytes) --- */
const char * * debuglog_flowbits_names; /* 128 8 */
TmEcode (*ReleaseData)(ThreadVars *, struct Packet_ *); /* 136 8 */
PktVar * pktvar; /* 144 8 */
EthernetHdr * ethh; /* 152 8 */
IPV4Hdr * ip4h; /* 160 8 */
IPV4Vars ip4vars; /* 168 736 */
/* --- cacheline 14 boundary (896 bytes) was 8 bytes ago --- */
IPV6Hdr * ip6h; /* 904 8 */
IPV6Vars ip6vars; /* 912 2 */
/* XXX 6 bytes hole, try to pack */
IPV6ExtHdrs ip6eh; /* 920 808 */
/* --- cacheline 27 boundary (1728 bytes) --- */
TCPHdr * tcph; /* 1728 8 */
TCPVars tcpvars; /* 1736 368 */
/* --- cacheline 32 boundary (2048 bytes) was 56 bytes ago --- */
UDPHdr * udph; /* 2104 8 */
/* --- cacheline 33 boundary (2112 bytes) --- */
UDPVars udpvars; /* 2112 4 */
/* XXX 4 bytes hole, try to pack */
SCTPHdr * sctph; /* 2120 8 */
ICMPV4Hdr * icmpv4h; /* 2128 8 */
ICMPV4Vars icmpv4vars; /* 2136 64 */
/* --- cacheline 34 boundary (2176 bytes) was 24 bytes ago --- */
ICMPV6Hdr * icmpv6h; /* 2200 8 */
ICMPV6Vars icmpv6vars; /* 2208 88 */
/* --- cacheline 35 boundary (2240 bytes) was 56 bytes ago --- */
PPPHdr * ppph; /* 2296 8 */
/* --- cacheline 36 boundary (2304 bytes) --- */
PPPOESessionHdr * pppoesh; /* 2304 8 */
PPPOEDiscoveryHdr * pppoedh; /* 2312 8 */
GREHdr * greh; /* 2320 8 */
VLANHdr * vlanh; /* 2328 8 */
uint8_t * payload; /* 2336 8 */
uint16_t payload_len; /* 2344 2 */
/* XXX 6 bytes hole, try to pack */
uint8_t * pkt; /* 2352 8 */
uint8_t * ext_pkt; /* 2360 8 */
/* --- cacheline 37 boundary (2368 bytes) --- */
uint32_t pktlen; /* 2368 4 */
/* XXX 4 bytes hole, try to pack */
struct LiveDevice_ * livedev; /* 2376 8 */
PacketAlerts alerts; /* 2384 248 */
/* --- cacheline 41 boundary (2624 bytes) was 8 bytes ago --- */
uint64_t pcap_cnt; /* 2632 8 */
pthread_mutex_t tunnel_mutex; /* 2640 40 */
uint16_t tunnel_rtv_cnt; /* 2680 2 */
uint16_t tunnel_tpr_cnt; /* 2682 2 */
PacketEngineEvents events; /* 2684 16 */
/* XXX 4 bytes hole, try to pack */
/* --- cacheline 42 boundary (2688 bytes) was 16 bytes ago --- */
struct Packet_ * next; /* 2704 8 */
struct Packet_ * prev; /* 2712 8 */
struct Packet_ * root; /* 2720 8 */
PktProfiling profile; /* 2728 1368 */
/* --- cacheline 64 boundary (4096 bytes) --- */
/* size: 4096, cachelines: 64, members: 54 */
/* sum members: 4059, holes: 8, sum holes: 37 */
};
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