WIP - Compiles RTT data into the tracker, strong type RTTs to clarify the unit confusion. Web side is not done yet.

src/rust/Cargo.lock

@@ -1088,6 +1088,15 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "fxhash"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
+dependencies = [
+ "byteorder",
+]
+
 [[package]]
 name = "generator"
 version = "0.7.5"
@@ -1743,6 +1752,7 @@ dependencies = [
  "dashmap",
  "env_logger",
  "flate2",
+ "fxhash",
  "ip_network",
  "ip_network_table",
  "itertools 0.12.1",

src/rust/lqos_bus/src/bus/response.rs

@@ -1,6 +1,6 @@
 use super::QueueStoreTransit;
 use crate::{
-  ip_stats::{FlowbeeData, PacketHeader}, IpMapping, IpStats, XdpPpingResult,
+  ip_stats::{FlowbeeSummaryData, PacketHeader}, IpMapping, IpStats, XdpPpingResult,
 };
 use lts_client::transport_data::{StatsTotals, StatsHost, StatsTreeNode};
 use serde::{Deserialize, Serialize};
@@ -115,16 +115,16 @@ pub enum BusResponse {
   LongTermTree(Vec<StatsTreeNode>),
 
   /// All Active Flows (Not Recommended - Debug Use)
-  AllActiveFlows(Vec<FlowbeeData>),
+  AllActiveFlows(Vec<FlowbeeSummaryData>),
 
   /// Count active flows
   CountActiveFlows(u64),
 
   /// Top Flopws
-  TopFlows(Vec<FlowbeeData>),
+  TopFlows(Vec<FlowbeeSummaryData>),
 
   /// Flows by IP
-  FlowsByIp(Vec<FlowbeeData>),
+  FlowsByIp(Vec<FlowbeeSummaryData>),
 
   /// Current endpoints by country
   CurrentEndpointsByCountry(Vec<(String, [u64; 2], [f32; 2])>),

src/rust/lqos_bus/src/ip_stats.rs

@@ -5,120 +5,120 @@ use serde::{Deserialize, Serialize};
 /// with a host.
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
 pub struct IpStats {
-  /// The host's IP address, as detected by the XDP program.
+    /// The host's IP address, as detected by the XDP program.
-  pub ip_address: String,
+    pub ip_address: String,
 
-  /// The host's mapped circuit ID
+    /// The host's mapped circuit ID
-  pub circuit_id: String,
+    pub circuit_id: String,
 
-  /// The current bits-per-second passing through this host. Tuple
+    /// The current bits-per-second passing through this host. Tuple
-  /// 0 is download, tuple 1 is upload.
+    /// 0 is download, tuple 1 is upload.
-  pub bits_per_second: (u64, u64),
+    pub bits_per_second: (u64, u64),
 
-  /// The current packets-per-second passing through this host. Tuple
+    /// The current packets-per-second passing through this host. Tuple
-  /// 0 is download, tuple 1 is upload.
+    /// 0 is download, tuple 1 is upload.
-  pub packets_per_second: (u64, u64),
+    pub packets_per_second: (u64, u64),
 
-  /// Median TCP round-trip-time for this host at the current time.
+    /// Median TCP round-trip-time for this host at the current time.
-  pub median_tcp_rtt: f32,
+    pub median_tcp_rtt: f32,
 
-  /// Associated TC traffic control handle.
+    /// Associated TC traffic control handle.
-  pub tc_handle: TcHandle,
+    pub tc_handle: TcHandle,
 }
 
 /// Represents an IP Mapping in the XDP IP to TC/CPU mapping system.
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
 pub struct IpMapping {
-  /// The mapped IP address. May be IPv4, or IPv6.
+    /// The mapped IP address. May be IPv4, or IPv6.
-  pub ip_address: String,
+    pub ip_address: String,
 
-  /// The CIDR prefix length of the host. Equivalent to the CIDR value
+    /// The CIDR prefix length of the host. Equivalent to the CIDR value
-  /// after the /. e.g. `/24`.
+    /// after the /. e.g. `/24`.
-  pub prefix_length: u32,
+    pub prefix_length: u32,
 
-  /// The current TC traffic control handle.
+    /// The current TC traffic control handle.
-  pub tc_handle: TcHandle,
+    pub tc_handle: TcHandle,
 
-  /// The CPU index associated with this IP mapping.
+    /// The CPU index associated with this IP mapping.
-  pub cpu: u32,
+    pub cpu: u32,
 }
 
 /// Provided for backwards compatibility with `xdp_pping`, with the intent
 /// to retire it eventually.
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
 pub struct XdpPpingResult {
-  /// The TC handle in text format. e.g. "1:12"
+    /// The TC handle in text format. e.g. "1:12"
-  pub tc: String,
+    pub tc: String,
 
-  /// The average (mean) RTT value for the current sample.
+    /// The average (mean) RTT value for the current sample.
-  pub avg: f32,
+    pub avg: f32,
 
-  /// The minimum RTT value for the current sample.
+    /// The minimum RTT value for the current sample.
-  pub min: f32,
+    pub min: f32,
 
-  /// The maximum RTT value for the current sample.
+    /// The maximum RTT value for the current sample.
-  pub max: f32,
+    pub max: f32,
 
-  /// The median RTT value for the current sample.
+    /// The median RTT value for the current sample.
-  pub median: f32,
+    pub median: f32,
 
-  /// The number of samples from which these values were
+    /// The number of samples from which these values were
-  /// derived. If 0, the other values are invalid.
+    /// derived. If 0, the other values are invalid.
-  pub samples: u32,
+    pub samples: u32,
 }
 
 /// Extract the 6-bit DSCP and 2-bit ECN code from a TOS field
 /// in an IP header.
 pub fn tos_parser(tos: u8) -> (u8, u8) {
-  // Format: 2 bits of ECN, 6 bits of DSCP
+    // Format: 2 bits of ECN, 6 bits of DSCP
-  const ECN: u8 = 0b00000011;
+    const ECN: u8 = 0b00000011;
-  const DSCP: u8 = 0b11111100;
+    const DSCP: u8 = 0b11111100;
 
-  let ecn = tos & ECN;
+    let ecn = tos & ECN;
-  let dscp = (tos & DSCP) >> 2;
+    let dscp = (tos & DSCP) >> 2;
-  (dscp, ecn)
+    (dscp, ecn)
 }
 
 /// Packet header dump
 #[derive(Deserialize, Serialize, Debug, Clone, PartialEq)]
 pub struct PacketHeader {
-  /// Timestamp (ns since boot)
+    /// Timestamp (ns since boot)
-  pub timestamp: u64,
+    pub timestamp: u64,
-  /// Source IP
+    /// Source IP
-  pub src: String,
+    pub src: String,
-  /// Destination IP
+    /// Destination IP
-  pub dst: String,
+    pub dst: String,
-  /// Source Port
+    /// Source Port
-  pub src_port : u16,
+    pub src_port: u16,
-  /// Destination Port
+    /// Destination Port
-  pub dst_port: u16,
+    pub dst_port: u16,
-  /// Ip Protocol (see Linux kernel docs)
+    /// Ip Protocol (see Linux kernel docs)
-  pub ip_protocol: u8,
+    pub ip_protocol: u8,
-  /// ECN Flag
+    /// ECN Flag
-  pub ecn: u8,
+    pub ecn: u8,
-  /// DSCP code
+    /// DSCP code
-  pub dscp: u8,
+    pub dscp: u8,
-  /// Packet Size
+    /// Packet Size
-  pub size: u32,
+    pub size: u32,
-  /// TCP Flag Bitset
+    /// TCP Flag Bitset
-  pub tcp_flags: u8,
+    pub tcp_flags: u8,
-  /// TCP Window Size
+    /// TCP Window Size
-  pub tcp_window: u16,
+    pub tcp_window: u16,
-  /// TCP TSVal
+    /// TCP TSVal
-  pub tcp_tsval: u32,
+    pub tcp_tsval: u32,
-  /// TCP ECR val
+    /// TCP ECR val
-  pub tcp_tsecr: u32,
+    pub tcp_tsecr: u32,
 }
 
 /// Flowbee protocol enumeration
 #[derive(Deserialize, Serialize, Debug, Clone, PartialEq)]
 pub enum FlowbeeProtocol {
-  /// TCP (type 6)
+    /// TCP (type 6)
-  TCP,
+    TCP,
-  /// UDP (type 17)
+    /// UDP (type 17)
-  UDP,
+    UDP,
-  /// ICMP (type 1)
+    /// ICMP (type 1)
-  ICMP
+    ICMP,
 }
 
 impl From<u8> for FlowbeeProtocol {
@@ -133,38 +133,45 @@ impl From<u8> for FlowbeeProtocol {
 
 /// Flowbee: a complete flow data, combining key and data.
 #[derive(Deserialize, Serialize, Debug, Clone, PartialEq)]
-pub struct FlowbeeData {
+pub struct FlowbeeSummaryData {
-  /// Mapped `XdpIpAddress` source for the flow.
+    /// Mapped `XdpIpAddress` source for the flow.
-  pub remote_ip: String,
+    pub remote_ip: String,
-  /// Mapped `XdpIpAddress` destination for the flow
+    /// Mapped `XdpIpAddress` destination for the flow
-  pub local_ip: String,
+    pub local_ip: String,
-  /// Source port number, or ICMP type.
+    /// Source port number, or ICMP type.
-  pub src_port: u16,
+    pub src_port: u16,
-  /// Destination port number.
+    /// Destination port number.
-  pub dst_port: u16,
+    pub dst_port: u16,
-  /// IP protocol (see the Linux kernel!)
+    /// IP protocol (see the Linux kernel!)
-  pub ip_protocol: FlowbeeProtocol,
+    pub ip_protocol: FlowbeeProtocol,
-  /// Bytes transmitted
+    /// Padding to align the structure to 16 bytes.
-  pub bytes_sent: [u64; 2],
+    /// Time (nanos) when the connection was established
-  /// Packets transmitted
+    pub start_time: u64,
-  pub packets_sent: [u64; 2],
+    /// Time (nanos) when the connection was last seen
-  /// Rate estimate
+    pub last_seen: u64,
-  pub rate_estimate_bps: [u32; 2],
+    /// Bytes transmitted
-  /// TCP Retransmission count (also counts duplicates)
+    pub bytes_sent: [u64; 2],
-  pub tcp_retransmits: [u16; 2],
+    /// Packets transmitted
-  /// Has the connection ended?
+    pub packets_sent: [u64; 2],
-  /// 0 = Alive, 1 = FIN, 2 = RST
+    /// Rate estimate
-  pub end_status: u8,
+    pub rate_estimate_bps: [u32; 2],
-  /// Raw IP TOS
+    /// TCP Retransmission count (also counts duplicates)
-  pub tos: u8,
+    pub tcp_retransmits: [u16; 2],
-  /// Raw TCP flags
+    /// Has the connection ended?
-  pub flags: u8,
+    /// 0 = Alive, 1 = FIN, 2 = RST
-  /// Remote ASN
+    pub end_status: u8,
-  pub remote_asn: u32,
+    /// Raw IP TOS
-  /// Remote ASN Name
+    pub tos: u8,
-  pub remote_asn_name: String,
+    /// Raw TCP flags
-  /// Remote ASN Country
+    pub flags: u8,
-  pub remote_asn_country: String,
+    /// Recent RTT median
-  /// Analysis
+    pub rtt_nanos: u64,
-  pub analysis: String,
+    /// Remote ASN
+    pub remote_asn: u32,
+    /// Remote ASN Name
+    pub remote_asn_name: String,
+    /// Remote ASN Country
+    pub remote_asn_country: String,
+    /// Analysis
+    pub analysis: String,
 }

src/rust/lqos_bus/src/lib.rs

@@ -14,7 +14,7 @@ mod bus;
 mod ip_stats;
 pub use ip_stats::{
   tos_parser, IpMapping, IpStats, PacketHeader,
-  XdpPpingResult, FlowbeeData, FlowbeeProtocol
+  XdpPpingResult, FlowbeeSummaryData, FlowbeeProtocol
 };
 mod tc_handle;
 pub use bus::{

src/rust/lqos_node_manager/src/flow_monitor.rs

@@ -1,9 +1,9 @@
-use lqos_bus::{bus_request, BusRequest, BusResponse, FlowbeeData};
+use lqos_bus::{bus_request, BusRequest, BusResponse, FlowbeeSummaryData};
 use rocket::serde::json::Json;
 use crate::cache_control::NoCache;
 
 #[get("/api/flows/dump_all")]
-pub async fn all_flows_debug_dump() -> NoCache<Json<Vec<FlowbeeData>>> {
+pub async fn all_flows_debug_dump() -> NoCache<Json<Vec<FlowbeeSummaryData>>> {
   let responses =
     bus_request(vec![BusRequest::DumpActiveFlows]).await.unwrap();
   let result = match &responses[0] {
@@ -27,7 +27,7 @@ pub async fn count_flows() -> NoCache<Json<u64>> {
 }
 
 #[get("/api/flows/top/<top_n>/<flow_type>")]
-pub async fn top_5_flows(top_n: u32, flow_type: String) -> NoCache<Json<Vec<FlowbeeData>>> {
+pub async fn top_5_flows(top_n: u32, flow_type: String) -> NoCache<Json<Vec<FlowbeeSummaryData>>> {
   let flow_type = match flow_type.as_str() {
     "rate" => lqos_bus::TopFlowType::RateEstimate,
     "bytes" => lqos_bus::TopFlowType::Bytes,

src/rust/lqos_node_manager/src/queue_info.rs

@@ -1,7 +1,7 @@
 use crate::auth_guard::AuthGuard;
 use crate::cache_control::NoCache;
 use crate::tracker::{SHAPED_DEVICES, lookup_dns};
-use lqos_bus::{bus_request, BusRequest, BusResponse, FlowbeeData, PacketHeader, QueueStoreTransit};
+use lqos_bus::{bus_request, BusRequest, BusResponse, FlowbeeSummaryData, PacketHeader, QueueStoreTransit};
 use rocket::fs::NamedFile;
 use rocket::http::Status;
 use rocket::response::content::RawJson;
@@ -107,7 +107,7 @@ pub async fn raw_queue_by_circuit(
 }
 
 #[get("/api/flows/<ip_list>")]
-pub async fn flow_stats(ip_list: String, _auth: AuthGuard) -> NoCache<Json<Vec<FlowbeeData>>> {
+pub async fn flow_stats(ip_list: String, _auth: AuthGuard) -> NoCache<Json<Vec<FlowbeeSummaryData>>> {
   let mut result = Vec::new();
   let request: Vec<BusRequest> = ip_list.split(',').map(|ip| BusRequest::FlowsByIp(ip.to_string())).collect();
   let responses = bus_request(request).await.unwrap();

src/rust/lqos_sys/src/bpf/common/flows.h

@@ -304,25 +304,15 @@ static __always_inline void process_tcp(
                 (data->rate_estimate_bps[rate_index] > 0 ||
                 data->rate_estimate_bps[other_rate_index] > 0 )
             ) {
-                struct flowbee_event event = {
-                    .key = key,
-                    .round_trip_time = dissector->now - data->ts_change_time[other_rate_index],
-                    .effective_direction = direction
-                };
-                bpf_ringbuf_output(&flowbee_events, &event, sizeof(event), 0);
-                /*
                 __u64 elapsed = dissector->now - data->ts_change_time[other_rate_index];
-                __u16 rtt_in_ms10 = elapsed / MS_IN_NANOS_T10;
+                if (elapsed < TWO_SECONDS_IN_NANOS) {
-
+                    struct flowbee_event event = {
-                if (elapsed < TWO_SECONDS_IN_NANOS && rtt_in_ms10 > 0 && rtt_in_ms10 < 2000) {
+                        .key = key,
-                    //bpf_debug("[FLOWS][%d] RTT: %u", direction, rtt_in_ms10);
+                        .round_trip_time = elapsed,
-                    __u8 entry = data->rtt_index[rate_index];
+                        .effective_direction = rate_index
-                    if (entry < RTT_RING_SIZE)
+                    };
-                    data->rtt_ringbuffer[rate_index][entry] = rtt_in_ms10;
+                    bpf_ringbuf_output(&flowbee_events, &event, sizeof(event), 0);
-                    data->rtt_index[rate_index] = (entry + 1) % RTT_RING_SIZE;
                 }
-                //bpf_debug("[FLOWS][%d] RTT: %llu", direction, elapsed);
-                */
             }
 
             data->ts_change_time[rate_index] = dissector->now;

src/rust/lqos_sys/src/flowbee_data.rs

@@ -7,61 +7,61 @@ use zerocopy::FromBytes;
 #[derive(Debug, Clone, Default, PartialEq, Eq, Hash, FromBytes)]
 #[repr(C)]
 pub struct FlowbeeKey {
-  /// Mapped `XdpIpAddress` source for the flow.
+    /// Mapped `XdpIpAddress` source for the flow.
-  pub remote_ip: XdpIpAddress,
+    pub remote_ip: XdpIpAddress,
-  /// Mapped `XdpIpAddress` destination for the flow
+    /// Mapped `XdpIpAddress` destination for the flow
-  pub local_ip: XdpIpAddress,
+    pub local_ip: XdpIpAddress,
-  /// Source port number, or ICMP type.
+    /// Source port number, or ICMP type.
-  pub src_port: u16,
+    pub src_port: u16,
-  /// Destination port number.
+    /// Destination port number.
-  pub dst_port: u16,
+    pub dst_port: u16,
-  /// IP protocol (see the Linux kernel!)
+    /// IP protocol (see the Linux kernel!)
-  pub ip_protocol: u8,
+    pub ip_protocol: u8,
-  /// Padding to align the structure to 16 bytes.
+    /// Padding to align the structure to 16 bytes.
-  padding: u8,
+    padding: u8,
-  padding1: u8,
+    padding1: u8,
-  padding2: u8,
+    padding2: u8,
 }
 
 /// Mapped representation of the eBPF `flow_data_t` type.
 #[derive(Debug, Clone, Default, FromBytes)]
 #[repr(C)]
 pub struct FlowbeeData {
-  /// Time (nanos) when the connection was established
+    /// Time (nanos) when the connection was established
-  pub start_time: u64,
+    pub start_time: u64,
-  /// Time (nanos) when the connection was last seen
+    /// Time (nanos) when the connection was last seen
-  pub last_seen: u64,
+    pub last_seen: u64,
-  /// Bytes transmitted
+    /// Bytes transmitted
-  pub bytes_sent: [u64; 2],
+    pub bytes_sent: [u64; 2],
-  /// Packets transmitted
+    /// Packets transmitted
-  pub packets_sent: [u64; 2],
+    pub packets_sent: [u64; 2],
-  /// Clock for the next rate estimate
+    /// Clock for the next rate estimate
-  pub next_count_time: [u64; 2],
+    pub next_count_time: [u64; 2],
-  /// Clock for the previous rate estimate
+    /// Clock for the previous rate estimate
-  pub last_count_time: [u64; 2],
+    pub last_count_time: [u64; 2],
-  /// Bytes at the next rate estimate
+    /// Bytes at the next rate estimate
-  pub next_count_bytes: [u64; 2],
+    pub next_count_bytes: [u64; 2],
-  /// Rate estimate
+    /// Rate estimate
-  pub rate_estimate_bps: [u32; 2],
+    pub rate_estimate_bps: [u32; 2],
-  /// Sequence number of the last packet
+    /// Sequence number of the last packet
-  pub last_sequence: [u32; 2],
+    pub last_sequence: [u32; 2],
-  /// Acknowledgement number of the last packet
+    /// Acknowledgement number of the last packet
-  pub last_ack: [u32; 2],
+    pub last_ack: [u32; 2],
-  /// TCP Retransmission count (also counts duplicates)
+    /// TCP Retransmission count (also counts duplicates)
-  pub tcp_retransmits: [u16; 2],
+    pub tcp_retransmits: [u16; 2],
-  /// Timestamp values
+    /// Timestamp values
-  pub tsval: [u32; 2],
+    pub tsval: [u32; 2],
-  /// Timestamp echo values
+    /// Timestamp echo values
-  pub tsecr: [u32; 2],
+    pub tsecr: [u32; 2],
-  /// When did the timestamp change?
+    /// When did the timestamp change?
-  pub ts_change_time: [u64; 2],
+    pub ts_change_time: [u64; 2],
-  /// Has the connection ended?
+    /// Has the connection ended?
-  /// 0 = Alive, 1 = FIN, 2 = RST
+    /// 0 = Alive, 1 = FIN, 2 = RST
-  pub end_status: u8,
+    pub end_status: u8,
-  /// Raw IP TOS
+    /// Raw IP TOS
-  pub tos: u8,
+    pub tos: u8,
-  /// Raw TCP flags
+    /// Raw TCP flags
-  pub flags: u8,
+    pub flags: u8,
-  /// Padding.
+    /// Padding.
-  pub padding: u8,
+    pub padding: u8,
 }

src/rust/lqosd/Cargo.toml

@@ -37,6 +37,7 @@ bincode = "1"
 ip_network_table = "0"
 ip_network = "0"
 zerocopy = {version = "0.6.1", features = [ "simd" ] }
+fxhash = "0.2.1"
 
 # Support JemAlloc on supported platforms
 [target.'cfg(any(target_arch = "x86", target_arch = "x86_64"))'.dependencies]

src/rust/lqosd/src/throughput_tracker/flow_data/flow_analysis/finished_flows.rs

@@ -1,6 +1,6 @@
 use super::{get_asn_lat_lon, get_asn_name_and_country, FlowAnalysis};
-use crate::throughput_tracker::flow_data::FlowbeeRecipient;
+use crate::throughput_tracker::flow_data::{FlowbeeLocalData, FlowbeeRecipient};
-use lqos_sys::flowbee_data::{FlowbeeData, FlowbeeKey};
+use lqos_sys::flowbee_data::FlowbeeKey;
 use once_cell::sync::Lazy;
 use std::sync::{Arc, Mutex};
 
@@ -10,7 +10,7 @@ pub struct TimeBuffer {
 
 struct TimeEntry {
     time: u64,
-    data: (FlowbeeKey, FlowbeeData, FlowAnalysis),
+    data: (FlowbeeKey, FlowbeeLocalData, FlowAnalysis),
 }
 
 impl TimeBuffer {
@@ -150,7 +150,7 @@ impl FinishedFlowAnalysis {
 }
 
 impl FlowbeeRecipient for FinishedFlowAnalysis {
-    fn enqueue(&self, key: FlowbeeKey, data: FlowbeeData, analysis: FlowAnalysis) {
+    fn enqueue(&self, key: FlowbeeKey, data: FlowbeeLocalData, analysis: FlowAnalysis) {
         log::info!("Finished flow analysis");
         RECENT_FLOWS.push(TimeEntry {
             time: std::time::SystemTime::now()

src/rust/lqosd/src/throughput_tracker/flow_data/flow_analysis/kernel_ringbuffer.rs

@@ -1,6 +1,68 @@
-use std::{ffi::c_void, slice};
+//! Connects to the flows.h "flowbee_events" ring buffer and processes the events.
-use zerocopy::FromBytes;
+use crate::throughput_tracker::flow_data::flow_analysis::rtt_types::RttData;
+use fxhash::FxHashMap;
 use lqos_sys::flowbee_data::FlowbeeKey;
+use lqos_utils::unix_time::time_since_boot;
+use once_cell::sync::Lazy;
+use std::{
+    ffi::c_void,
+    slice,
+    sync::{atomic::AtomicU64, Mutex},
+    time::Duration,
+};
+use zerocopy::FromBytes;
+
+static EVENT_COUNT: AtomicU64 = AtomicU64::new(0);
+static EVENTS_PER_SECOND: AtomicU64 = AtomicU64::new(0);
+
+const BUFFER_SIZE: usize = 1024;
+
+struct RttBuffer {
+    index: usize,
+    buffer: [[RttData; BUFFER_SIZE]; 2],
+    last_seen: u64,
+}
+
+impl RttBuffer {
+    fn new(reading: u64, direction: u32, last_seen: u64) -> Self {
+        let empty = [RttData::from_nanos(0); BUFFER_SIZE];
+        let mut filled = [RttData::from_nanos(0); BUFFER_SIZE];
+        filled[0] = RttData::from_nanos(reading);
+
+        if direction == 0 {
+            Self {
+                index: 1,
+                buffer: [empty, filled],
+                last_seen,
+            }
+        } else {
+            Self {
+                index: 0,
+                buffer: [filled, empty],
+                last_seen,
+            }
+        }
+    }
+
+    fn push(&mut self, reading: u64, direction: u32, last_seen: u64) {
+        self.buffer[direction as usize][self.index] = RttData::from_nanos(reading);
+        self.index = (self.index + 1) % BUFFER_SIZE;
+        self.last_seen = last_seen;
+    }
+
+    fn median(&self) -> RttData {
+        let mut sorted = self.buffer[0].iter().filter(|x| x.as_nanos() > 0).collect::<Vec<_>>();
+        if sorted.is_empty() {
+            return RttData::from_nanos(0);
+        }
+        sorted.sort_unstable();
+        let mid = sorted.len() / 2;
+        *sorted[mid]
+    }
+}
+
+static FLOW_RTT: Lazy<Mutex<FxHashMap<FlowbeeKey, RttBuffer>>> =
+    Lazy::new(|| Mutex::new(FxHashMap::default()));
 
 #[repr(C)]
 #[derive(FromBytes, Debug, Clone, PartialEq, Eq, Hash)]
@@ -16,8 +78,6 @@ pub unsafe extern "C" fn flowbee_handle_events(
     data: *mut c_void,
     data_size: usize,
 ) -> i32 {
-    println!("Event received");
-
     const EVENT_SIZE: usize = std::mem::size_of::<FlowbeeEvent>();
     if data_size < EVENT_SIZE {
         log::warn!("Warning: incoming data too small in Flowbee buffer");
@@ -27,26 +87,53 @@ pub unsafe extern "C" fn flowbee_handle_events(
     let data_u8 = data as *const u8;
     let data_slice: &[u8] = slice::from_raw_parts(data_u8, EVENT_SIZE);
     if let Some(incoming) = FlowbeeEvent::read_from(data_slice) {
-        println!("RTT: {}, Direction: {}", incoming.rtt, incoming.effective_direction);
+        EVENT_COUNT.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
+
+        if let Ok(now) = time_since_boot() {
+            let since_boot = Duration::from(now);
+            let mut lock = FLOW_RTT.lock().unwrap();
+            if let Some(entry) = lock.get_mut(&incoming.key) {
+                entry.push(
+                    incoming.rtt,
+                    incoming.effective_direction,
+                    since_boot.as_nanos() as u64,
+                );
+            } else {
+                lock.insert(
+                    incoming.key,
+                    RttBuffer::new(
+                        incoming.rtt,
+                        incoming.effective_direction,
+                        since_boot.as_nanos() as u64,
+                    ),
+                );
+            }
+        }
     } else {
         log::error!("Failed to decode Flowbee Event");
     }
 
-    /*const EVENT_SIZE: usize = std::mem::size_of::<HeimdallEvent>();
-    if data_size < EVENT_SIZE {
-        log::warn!("Warning: incoming data too small in Heimdall buffer");
-        return 0;
-    }
-
-    //COLLECTED_EVENTS.fetch_add(1, std::sync::atomic::Ordering::Relaxed);
-    let data_u8 = data as *const u8;
-    let data_slice: &[u8] = slice::from_raw_parts(data_u8, EVENT_SIZE);
-
-    if let Some(incoming) = HeimdallEvent::read_from(data_slice) {
-        store_on_timeline(incoming);
-    } else {
-        println!("Failed to decode");
-    }*/
-
     0
 }
+
+pub fn get_flowbee_event_count_and_reset() -> u64 {
+    let count = EVENT_COUNT.swap(0, std::sync::atomic::Ordering::Relaxed);
+    EVENTS_PER_SECOND.store(count, std::sync::atomic::Ordering::Relaxed);
+    count
+}
+
+pub fn expire_rtt_flows() {
+    if let Ok(now) = time_since_boot() {
+        let since_boot = Duration::from(now);
+        let expire = (since_boot - Duration::from_secs(30)).as_nanos() as u64;
+        let mut lock = FLOW_RTT.lock().unwrap();
+        lock.retain(|_, v| v.last_seen > expire);
+    }
+}
+
+pub fn flowbee_rtt_map() -> FxHashMap<FlowbeeKey, RttData> {
+    let lock = FLOW_RTT.lock().unwrap();
+    lock.iter()
+        .map(|(k, v)| (k.clone(), v.median()))
+        .collect()
+}

src/rust/lqosd/src/throughput_tracker/flow_data/flow_analysis/mod.rs

@@ -10,6 +10,8 @@ pub use finished_flows::FinishedFlowAnalysis;
 pub use finished_flows::RECENT_FLOWS;
 mod kernel_ringbuffer;
 pub use kernel_ringbuffer::*;
+mod rtt_types;
+pub use rtt_types::RttData;
 
 static ANALYSIS: Lazy<FlowAnalysisSystem> = Lazy::new(|| FlowAnalysisSystem::new());
 

src/rust/lqosd/src/throughput_tracker/flow_data/flow_analysis/rtt_types.rs

@@ -0,0 +1,38 @@
+//! Provides a set of types for representing round-trip time (RTT) data,
+//! as produced by the eBPF system and consumed in different ways.
+//! 
+//! Adopting strong-typing is an attempt to reduce confusion with
+//! multipliers, divisors, etc. It is intended to become pervasive
+//! throughout the system.
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
+pub struct RttData {
+    nanoseconds: u64,
+}
+
+#[allow(dead_code)]
+impl RttData {
+    pub fn from_nanos(nanoseconds: u64) -> Self {
+        Self { nanoseconds }
+    }
+
+    pub fn as_nanos(&self) -> u64 {
+        self.nanoseconds
+    }
+
+    pub fn as_micros(&self) -> f64 {
+        self.nanoseconds as f64 / 1_000.0
+    }
+
+    pub fn as_millis(&self) -> f64 {
+        self.nanoseconds as f64 / 1_000_000.0
+    }
+
+    pub fn as_millis_times_100(&self) -> f64 {
+        self.nanoseconds as f64 / 10_000.0
+    }
+
+    pub fn as_seconds(&self) -> f64 {
+        self.nanoseconds as f64 / 1_000_000_000.0
+    }
+}

src/rust/lqosd/src/throughput_tracker/flow_data/flow_tracker.rs

@@ -1,7 +1,7 @@
 //! Provides a globally accessible vector of all flows. This is used to store
 //! all flows for the purpose of tracking and data-services.
 
-use super::flow_analysis::FlowAnalysis;
+use super::{flow_analysis::FlowAnalysis, RttData};
 use lqos_sys::flowbee_data::{FlowbeeData, FlowbeeKey};
 use once_cell::sync::Lazy;
 use std::{collections::HashMap, sync::Mutex};
@@ -9,5 +9,51 @@ use std::{collections::HashMap, sync::Mutex};
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct AsnId(pub u32);
 
-pub static ALL_FLOWS: Lazy<Mutex<HashMap<FlowbeeKey, (FlowbeeData, FlowAnalysis)>>> =
+pub static ALL_FLOWS: Lazy<Mutex<HashMap<FlowbeeKey, (FlowbeeLocalData, FlowAnalysis)>>> =
     Lazy::new(|| Mutex::new(HashMap::new()));
+
+
+/// Condensed representation of the FlowbeeData type. This contains
+/// only the information we want to keep locally for analysis purposes,
+/// adds RTT data, and uses Rust-friendly typing.
+#[derive(Debug, Clone)]
+pub struct FlowbeeLocalData {
+    /// Time (nanos) when the connection was established
+    pub start_time: u64,
+    /// Time (nanos) when the connection was last seen
+    pub last_seen: u64,
+    /// Bytes transmitted
+    pub bytes_sent: [u64; 2],
+    /// Packets transmitted
+    pub packets_sent: [u64; 2],
+    /// Rate estimate
+    pub rate_estimate_bps: [u32; 2],
+    /// TCP Retransmission count (also counts duplicates)
+    pub tcp_retransmits: [u16; 2],
+    /// Has the connection ended?
+    /// 0 = Alive, 1 = FIN, 2 = RST
+    pub end_status: u8,
+    /// Raw IP TOS
+    pub tos: u8,
+    /// Raw TCP flags
+    pub flags: u8,
+    /// Recent RTT median
+    pub rtt: RttData,
+}
+
+impl From<&FlowbeeData> for FlowbeeLocalData {
+    fn from(data: &FlowbeeData) -> Self {
+        Self {
+            start_time: data.start_time,
+            last_seen: data.last_seen,
+            bytes_sent: data.bytes_sent,
+            packets_sent: data.packets_sent,
+            rate_estimate_bps: data.rate_estimate_bps,
+            tcp_retransmits: data.tcp_retransmits,
+            end_status: data.end_status,
+            tos: data.tos,
+            flags: data.flags,
+            rtt: RttData::from_nanos(0),
+        }
+    }
+}

src/rust/lqosd/src/throughput_tracker/flow_data/mod.rs

@@ -7,22 +7,25 @@ mod netflow9;
 mod flow_analysis;
 
 use crate::throughput_tracker::flow_data::{flow_analysis::FinishedFlowAnalysis, netflow5::Netflow5, netflow9::Netflow9};
-pub(crate) use flow_tracker::{ALL_FLOWS, AsnId};
+pub(crate) use flow_tracker::{ALL_FLOWS, AsnId, FlowbeeLocalData};
-use lqos_sys::flowbee_data::{FlowbeeData, FlowbeeKey};
+use lqos_sys::flowbee_data::FlowbeeKey;
 use std::sync::{
     mpsc::{channel, Sender},
     Arc,
 };
-pub(crate) use flow_analysis::{setup_flow_analysis, get_asn_name_and_country, FlowAnalysis, RECENT_FLOWS, flowbee_handle_events};
+pub(crate) use flow_analysis::{setup_flow_analysis, get_asn_name_and_country, 
+    FlowAnalysis, RECENT_FLOWS, flowbee_handle_events, get_flowbee_event_count_and_reset,
+    expire_rtt_flows, flowbee_rtt_map, RttData,
+};
 
 
 trait FlowbeeRecipient {
-    fn enqueue(&self, key: FlowbeeKey, data: FlowbeeData, analysis: FlowAnalysis);
+    fn enqueue(&self, key: FlowbeeKey, data: FlowbeeLocalData, analysis: FlowAnalysis);
 }
 
 // Creates the netflow tracker and returns the sender
-pub fn setup_netflow_tracker() -> Sender<(FlowbeeKey, (FlowbeeData, FlowAnalysis))> {
+pub fn setup_netflow_tracker() -> Sender<(FlowbeeKey, (FlowbeeLocalData, FlowAnalysis))> {
-    let (tx, rx) = channel::<(FlowbeeKey, (FlowbeeData, FlowAnalysis))>();
+    let (tx, rx) = channel::<(FlowbeeKey, (FlowbeeLocalData, FlowAnalysis))>();
     let config = lqos_config::load_config().unwrap();
 
     std::thread::spawn(move || {

src/rust/lqosd/src/throughput_tracker/flow_data/netflow5/mod.rs

@@ -1,8 +1,8 @@
 //! Support for the Netflow 5 protocol
 //! Mostly taken from: https://netflow.caligare.com/netflow_v5.htm
 mod protocol;
-use super::{FlowAnalysis, FlowbeeRecipient};
+use super::{FlowAnalysis, FlowbeeLocalData, FlowbeeRecipient};
-use lqos_sys::flowbee_data::{FlowbeeData, FlowbeeKey};
+use lqos_sys::flowbee_data::FlowbeeKey;
 pub(crate) use protocol::*;
 use std::{
     net::UdpSocket,
@@ -13,7 +13,7 @@ pub(crate) struct Netflow5 {
     socket: UdpSocket,
     sequence: AtomicU32,
     target: String,
-    send_queue: Mutex<Vec<(FlowbeeKey, FlowbeeData)>>,
+    send_queue: Mutex<Vec<(FlowbeeKey, FlowbeeLocalData)>>,
 }
 
 impl Netflow5 {
@@ -83,7 +83,7 @@ impl Netflow5 {
 }
 
 impl FlowbeeRecipient for Netflow5 {
-    fn enqueue(&self, key: FlowbeeKey, data: FlowbeeData, _analysis: FlowAnalysis) {
+    fn enqueue(&self, key: FlowbeeKey, data: FlowbeeLocalData, _analysis: FlowAnalysis) {
         let mut lock = self.send_queue.lock().unwrap();
         lock.push((key, data));
     }

src/rust/lqosd/src/throughput_tracker/flow_data/netflow5/protocol.rs

@@ -1,10 +1,12 @@
 //! Definitions for the actual netflow 5 protocol
 
 use std::net::IpAddr;
-use lqos_sys::flowbee_data::{FlowbeeData, FlowbeeKey};
+use lqos_sys::flowbee_data::FlowbeeKey;
 use lqos_utils::unix_time::time_since_boot;
 use nix::sys::time::TimeValLike;
 
+use crate::throughput_tracker::flow_data::FlowbeeLocalData;
+
 /// Standard Netflow 5 header
 #[repr(C)]
 pub(crate) struct Netflow5Header {
@@ -64,7 +66,7 @@ pub(crate) struct Netflow5Record {
 }
 
 /// Convert a Flowbee key and data to a pair of Netflow 5 records
-pub(crate) fn to_netflow_5(key: &FlowbeeKey, data: &FlowbeeData) -> anyhow::Result<(Netflow5Record, Netflow5Record)> {
+pub(crate) fn to_netflow_5(key: &FlowbeeKey, data: &FlowbeeLocalData) -> anyhow::Result<(Netflow5Record, Netflow5Record)> {
     // TODO: Detect overflow
     let local = key.local_ip.as_ip();
     let remote = key.remote_ip.as_ip();

src/rust/lqosd/src/throughput_tracker/flow_data/netflow9/mod.rs

@@ -1,18 +1,18 @@
 use crate::throughput_tracker::flow_data::netflow9::protocol::{
     header::Netflow9Header, template_ipv4::template_data_ipv4, template_ipv6::template_data_ipv6,
 };
-use lqos_sys::flowbee_data::{FlowbeeData, FlowbeeKey};
+use lqos_sys::flowbee_data::FlowbeeKey;
 use std::{net::UdpSocket, sync::{atomic::AtomicU32, Arc, Mutex}};
 
 use self::protocol::to_netflow_9;
-use super::{FlowAnalysis, FlowbeeRecipient};
+use super::{FlowAnalysis, FlowbeeLocalData, FlowbeeRecipient};
 mod protocol;
 
 pub(crate) struct Netflow9 {
     socket: UdpSocket,
     sequence: AtomicU32,
     target: String,
-    send_queue: Mutex<Vec<(FlowbeeKey, FlowbeeData)>>,
+    send_queue: Mutex<Vec<(FlowbeeKey, FlowbeeLocalData)>>,
 }
 
 impl Netflow9 {
@@ -66,7 +66,7 @@ impl Netflow9 {
 }
 
 impl FlowbeeRecipient for Netflow9 {
-    fn enqueue(&self, key: FlowbeeKey, data: FlowbeeData, _analysis: FlowAnalysis) {
+    fn enqueue(&self, key: FlowbeeKey, data: FlowbeeLocalData, _analysis: FlowAnalysis) {
         let mut lock = self.send_queue.lock().unwrap();
         lock.push((key, data));
     }

src/rust/lqosd/src/throughput_tracker/flow_data/netflow9/protocol/field_encoder.rs

@@ -1,9 +1,9 @@
 use std::net::IpAddr;
-
+use lqos_sys::flowbee_data::FlowbeeKey;
-use lqos_sys::flowbee_data::{FlowbeeData, FlowbeeKey};
+use crate::throughput_tracker::flow_data::FlowbeeLocalData;
 use super::field_types::*;
 
-pub(crate) fn encode_fields_from_template(template: &[(u16, u16)], direction: usize, key: &FlowbeeKey, data: &FlowbeeData) -> anyhow::Result<Vec<u8>> {
+pub(crate) fn encode_fields_from_template(template: &[(u16, u16)], direction: usize, key: &FlowbeeKey, data: &FlowbeeLocalData) -> anyhow::Result<Vec<u8>> {
     let src_port = if direction == 0 { key.src_port } else { key.dst_port };
     let dst_port = if direction == 0 { key.dst_port } else { key.src_port };
 

src/rust/lqosd/src/throughput_tracker/flow_data/netflow9/protocol/mod.rs

@@ -1,9 +1,11 @@
 //! Protocol definitions for Netflow v9 Data.
 //! Mostly derived from https://netflow.caligare.com/netflow_v9.htm
 
-use lqos_sys::flowbee_data::{FlowbeeData, FlowbeeKey};
+use lqos_sys::flowbee_data::FlowbeeKey;
 mod field_types;
 use field_types::*;
+
+use crate::throughput_tracker::flow_data::FlowbeeLocalData;
 pub(crate) mod field_encoder;
 pub(crate) mod header;
 pub(crate) mod template_ipv4;
@@ -16,7 +18,7 @@ fn add_field(bytes: &mut Vec<u8>, field_type: u16, field_length: u16) {
 
 pub(crate) fn to_netflow_9(
     key: &FlowbeeKey,
-    data: &FlowbeeData,
+    data: &FlowbeeLocalData,
 ) -> anyhow::Result<(Vec<u8>, Vec<u8>)> {
     if key.local_ip.is_v4() && key.remote_ip.is_v4() {
         // Return IPv4 records
@@ -29,7 +31,7 @@ pub(crate) fn to_netflow_9(
     }
 }
 
-fn ipv4_record(key: &FlowbeeKey, data: &FlowbeeData, direction: usize) -> anyhow::Result<Vec<u8>> {
+fn ipv4_record(key: &FlowbeeKey, data: &FlowbeeLocalData, direction: usize) -> anyhow::Result<Vec<u8>> {
     let field_bytes = field_encoder::encode_fields_from_template(
         &template_ipv4::FIELDS_IPV4,
         direction,
@@ -63,7 +65,7 @@ fn ipv4_record(key: &FlowbeeKey, data: &FlowbeeData, direction: usize) -> anyhow
     Ok(bytes)
 }
 
-fn ipv6_record(key: &FlowbeeKey, data: &FlowbeeData, direction: usize) -> anyhow::Result<Vec<u8>> {
+fn ipv6_record(key: &FlowbeeKey, data: &FlowbeeLocalData, direction: usize) -> anyhow::Result<Vec<u8>> {
     let field_bytes = field_encoder::encode_fields_from_template(
         &template_ipv6::FIELDS_IPV6,
         direction,

src/rust/lqosd/src/throughput_tracker/mod.rs

@@ -3,6 +3,7 @@ mod throughput_entry;
 mod tracking_data;
 use std::net::IpAddr;
 
+use self::flow_data::{get_asn_name_and_country, FlowAnalysis, FlowbeeLocalData, ALL_FLOWS};
 use crate::{
     long_term_stats::get_network_tree,
     shaped_devices_tracker::{NETWORK_JSON, SHAPED_DEVICES, STATS_NEEDS_NEW_SHAPED_DEVICES},
@@ -11,7 +12,7 @@ use crate::{
 };
 use log::{info, warn};
 use lqos_bus::{BusResponse, FlowbeeProtocol, IpStats, TcHandle, TopFlowType, XdpPpingResult};
-use lqos_sys::flowbee_data::{FlowbeeData, FlowbeeKey};
+use lqos_sys::flowbee_data::FlowbeeKey;
 use lqos_utils::{unix_time::time_since_boot, XdpIpAddress};
 use lts_client::collector::{HostSummary, StatsUpdateMessage, ThroughputSummary};
 use once_cell::sync::Lazy;
@@ -19,7 +20,6 @@ use tokio::{
     sync::mpsc::Sender,
     time::{Duration, Instant},
 };
-use self::flow_data::{get_asn_name_and_country, FlowAnalysis, ALL_FLOWS};
 
 const RETIRE_AFTER_SECONDS: u64 = 30;
 
@@ -34,7 +34,7 @@ pub static THROUGHPUT_TRACKER: Lazy<ThroughputTracker> = Lazy::new(ThroughputTra
 ///   collection thread that there is fresh data.
 pub async fn spawn_throughput_monitor(
     long_term_stats_tx: Sender<StatsUpdateMessage>,
-    netflow_sender: std::sync::mpsc::Sender<(FlowbeeKey, (FlowbeeData, FlowAnalysis))>,
+    netflow_sender: std::sync::mpsc::Sender<(FlowbeeKey, (FlowbeeLocalData, FlowAnalysis))>,
 ) {
     info!("Starting the bandwidth monitor thread.");
     let interval_ms = 1000; // 1 second
@@ -49,7 +49,7 @@ pub async fn spawn_throughput_monitor(
 async fn throughput_task(
     interval_ms: u64,
     long_term_stats_tx: Sender<StatsUpdateMessage>,
-    netflow_sender: std::sync::mpsc::Sender<(FlowbeeKey, (FlowbeeData, FlowAnalysis))>,
+    netflow_sender: std::sync::mpsc::Sender<(FlowbeeKey, (FlowbeeLocalData, FlowAnalysis))>,
 ) {
     // Obtain the flow timeout from the config, default to 30 seconds
     let timeout_seconds = if let Ok(config) = lqos_config::load_config() {
@@ -502,12 +502,13 @@ pub fn all_unknown_ips() -> BusResponse {
 /// For debugging: dump all active flows!
 pub fn dump_active_flows() -> BusResponse {
     let lock = ALL_FLOWS.lock().unwrap();
-    let result: Vec<lqos_bus::FlowbeeData> = lock
+    let result: Vec<lqos_bus::FlowbeeSummaryData> = lock
         .iter()
         .map(|(key, row)| {
-            let (remote_asn_name, remote_asn_country) = get_asn_name_and_country(key.remote_ip.as_ip());
+            let (remote_asn_name, remote_asn_country) =
+                get_asn_name_and_country(key.remote_ip.as_ip());
 
-            lqos_bus::FlowbeeData {
+            lqos_bus::FlowbeeSummaryData {
                 remote_ip: key.remote_ip.as_ip().to_string(),
                 local_ip: key.local_ip.as_ip().to_string(),
                 src_port: key.src_port,
@@ -524,6 +525,9 @@ pub fn dump_active_flows() -> BusResponse {
                 remote_asn_name,
                 remote_asn_country,
                 analysis: row.1.protocol_analysis.to_string(),
+                last_seen: row.0.last_seen,
+                start_time: row.0.start_time,
+                rtt_nanos: row.0.rtt.as_nanos(),
             }
         })
         .collect();
@@ -540,7 +544,7 @@ pub fn count_active_flows() -> BusResponse {
 /// Top Flows Report
 pub fn top_flows(n: u32, flow_type: TopFlowType) -> BusResponse {
     let lock = ALL_FLOWS.lock().unwrap();
-    let mut table: Vec<(FlowbeeKey, (FlowbeeData, FlowAnalysis))> = lock
+    let mut table: Vec<(FlowbeeKey, (FlowbeeLocalData, FlowAnalysis))> = lock
         .iter()
         .map(|(key, value)| (key.clone(), value.clone()))
         .collect();
@@ -577,9 +581,9 @@ pub fn top_flows(n: u32, flow_type: TopFlowType) -> BusResponse {
         }
         TopFlowType::RoundTripTime => {
             table.sort_by(|a, b| {
-                let a_total = 0.0;
+                let a_total = a.1 .0.rtt;
-                let b_total = 0.0;
+                let b_total = b.1 .0.rtt;
-                b_total.partial_cmp(&a_total).unwrap()
+                a_total.cmp(&b_total)
             });
         }
     }
@@ -588,8 +592,9 @@ pub fn top_flows(n: u32, flow_type: TopFlowType) -> BusResponse {
         .iter()
         .take(n as usize)
         .map(|(ip, flow)| {
-            let (remote_asn_name, remote_asn_country) = get_asn_name_and_country(ip.remote_ip.as_ip());
+            let (remote_asn_name, remote_asn_country) =
-            lqos_bus::FlowbeeData {
+                get_asn_name_and_country(ip.remote_ip.as_ip());
+            lqos_bus::FlowbeeSummaryData {
                 remote_ip: ip.remote_ip.as_ip().to_string(),
                 local_ip: ip.local_ip.as_ip().to_string(),
                 src_port: ip.src_port,
@@ -606,6 +611,9 @@ pub fn top_flows(n: u32, flow_type: TopFlowType) -> BusResponse {
                 remote_asn_name,
                 remote_asn_country,
                 analysis: flow.1.protocol_analysis.to_string(),
+                last_seen: flow.0.last_seen,
+                start_time: flow.0.start_time,
+                rtt_nanos: flow.0.rtt.as_nanos(),
             }
         })
         .collect();
@@ -622,9 +630,10 @@ pub fn flows_by_ip(ip: &str) -> BusResponse {
             .iter()
             .filter(|(key, _)| key.local_ip == ip)
             .map(|(key, row)| {
-                let (remote_asn_name, remote_asn_country) = get_asn_name_and_country(key.remote_ip.as_ip());
+                let (remote_asn_name, remote_asn_country) =
+                    get_asn_name_and_country(key.remote_ip.as_ip());
 
-                lqos_bus::FlowbeeData {
+                lqos_bus::FlowbeeSummaryData {
                     remote_ip: key.remote_ip.as_ip().to_string(),
                     local_ip: key.local_ip.as_ip().to_string(),
                     src_port: key.src_port,
@@ -641,6 +650,9 @@ pub fn flows_by_ip(ip: &str) -> BusResponse {
                     remote_asn_name,
                     remote_asn_country,
                     analysis: row.1.protocol_analysis.to_string(),
+                    last_seen: row.0.last_seen,
+                    start_time: row.0.start_time,
+                    rtt_nanos: row.0.rtt.as_nanos(),
                 }
             })
             .collect();

src/rust/lqosd/src/throughput_tracker/tracking_data.rs

@@ -1,9 +1,9 @@
 use std::{sync::atomic::AtomicU64, time::Duration};
-use crate::{shaped_devices_tracker::{SHAPED_DEVICES, NETWORK_JSON}, stats::{HIGH_WATERMARK_DOWN, HIGH_WATERMARK_UP}};
+use crate::{shaped_devices_tracker::{NETWORK_JSON, SHAPED_DEVICES}, stats::{HIGH_WATERMARK_DOWN, HIGH_WATERMARK_UP}, throughput_tracker::flow_data::{expire_rtt_flows, flowbee_rtt_map}};
-use super::{flow_data::{FlowAnalysis, ALL_FLOWS}, throughput_entry::ThroughputEntry, RETIRE_AFTER_SECONDS};
+use super::{flow_data::{get_flowbee_event_count_and_reset, FlowAnalysis, FlowbeeLocalData, RttData, ALL_FLOWS}, throughput_entry::ThroughputEntry, RETIRE_AFTER_SECONDS};
 use dashmap::DashMap;
 use lqos_bus::TcHandle;
-use lqos_sys::{flowbee_data::{FlowbeeData, FlowbeeKey}, iterate_flows, throughput_for_each};
+use lqos_sys::{flowbee_data::FlowbeeKey, iterate_flows, throughput_for_each};
 use lqos_utils::{unix_time::time_since_boot, XdpIpAddress};
 
 pub struct ThroughputTracker {
@@ -172,18 +172,21 @@ impl ThroughputTracker {
     &self, 
     timeout_seconds: u64,
     _netflow_enabled: bool,
-    sender: std::sync::mpsc::Sender<(FlowbeeKey, (FlowbeeData, FlowAnalysis))>,
+    sender: std::sync::mpsc::Sender<(FlowbeeKey, (FlowbeeLocalData, FlowAnalysis))>,
   ) {
+    //log::debug!("Flowbee events this second: {}", get_flowbee_event_count_and_reset());
     let self_cycle = self.cycle.load(std::sync::atomic::Ordering::Relaxed);
 
     if let Ok(now) = time_since_boot() {
+      let rtt_samples = flowbee_rtt_map();
+      get_flowbee_event_count_and_reset();
       let since_boot = Duration::from(now);
       let expire = (since_boot - Duration::from_secs(timeout_seconds)).as_nanos() as u64;
 
       // Track the expired keys
       let mut expired_keys = Vec::new();
 
-      let mut lock = ALL_FLOWS.lock().unwrap();
+      let mut all_flows_lock = ALL_FLOWS.lock().unwrap();
         
       // Track through all the flows
       iterate_flows(&mut |key, data| {
@@ -196,7 +199,7 @@ impl ThroughputTracker {
           expired_keys.push(key.clone());
         } else {
           // We have a valid flow, so it needs to be tracked
-          if let Some(this_flow) = lock.get_mut(&key) {
+          if let Some(this_flow) = all_flows_lock.get_mut(&key) {
             this_flow.0.last_seen = data.last_seen;
             this_flow.0.bytes_sent = data.bytes_sent;
             this_flow.0.packets_sent = data.packets_sent;
@@ -205,23 +208,23 @@ impl ThroughputTracker {
             this_flow.0.end_status = data.end_status;
             this_flow.0.tos = data.tos;
             this_flow.0.flags = data.flags;
+            this_flow.0.rtt = rtt_samples.get(&key).copied().unwrap_or(RttData::from_nanos(0)).clone();
           } else {
             // Insert it into the map
             let flow_analysis = FlowAnalysis::new(&key);
-            lock.insert(key.clone(), (data.clone(), flow_analysis));
+            all_flows_lock.insert(key.clone(), (data.into(), flow_analysis));
           }
 
           // TCP - we have RTT data? 6 is TCP
           if key.ip_protocol == 6 && data.end_status == 0 {
             if let Some(mut tracker) = self.raw_data.get_mut(&key.local_ip) {
-              /*for rtt in data.median_pair().iter() {
+              if let Some(rtt) = rtt_samples.get(&key) {
-                if *rtt > 0.0 {
+                if rtt.as_nanos() > 0 {
-                  println!("RTT: {rtt:?}");
                   // Shift left
                   for i in 1..60 {
                     tracker.recent_rtt_data[i] = tracker.recent_rtt_data[i - 1];
                   }
-                  tracker.recent_rtt_data[0] = *rtt as u32;
+                  tracker.recent_rtt_data[0] = rtt.as_millis_times_100() as u32;
                   tracker.last_fresh_rtt_data_cycle = self_cycle;
                   if let Some(parents) = &tracker.network_json_parents {
                     let net_json = NETWORK_JSON.write().unwrap();
@@ -230,7 +233,7 @@ impl ThroughputTracker {
                     }
                   }
                 }
-              }*/
+              }
 
               if data.end_status != 0 {
                 // The flow has ended. We need to remove it from the map.
@@ -244,11 +247,11 @@ impl ThroughputTracker {
       if !expired_keys.is_empty() {
         for key in expired_keys.iter() {
           // Send it off to netperf for analysis if we are supporting doing so.
-          if let Some(d) = lock.get(&key) {
+          if let Some(d) = all_flows_lock.get(&key) {
             let _ = sender.send((key.clone(), (d.0.clone(), d.1.clone())));
           }
           // Remove the flow from circulation
-          lock.remove(&key);
+          all_flows_lock.remove(&key);
         }
 
         let ret = lqos_sys::end_flows(&mut expired_keys);
@@ -258,7 +261,8 @@ impl ThroughputTracker {
       }
 
       // Cleaning run
-      lock.retain(|_k,v| v.0.last_seen >= expire);
+      all_flows_lock.retain(|_k,v| v.0.last_seen >= expire);
+      expire_rtt_flows();
     }
   }