style: refine logging verbosity and improve diagnostic messages

Demote baseline telemetry to debug level, add context to rate controller warnings, and remove redundant string conversions in reflector selection logs.

src/baseliner.rs

@@ -4,7 +4,7 @@ use crate::metrics::{Metric, MetricsSender};
 use crate::pinger::PingReply;
 use crate::util::ArcMutex;
 use crate::util::MutexExt;
-use log::info;
+use log::{debug, info};
 use std::collections::HashMap;
 use std::net::IpAddr;
 use std::sync::atomic::Ordering;
@@ -147,11 +147,11 @@ impl Baseliner {
                 recent_down_ewma: owd_recent.down_ewma,
             });
 
-            info!(
+            debug!(
                 "Reflector {} up baseline = {} down baseline = {}",
                 time_data.reflector, owd_baseline.up_ewma, owd_baseline.down_ewma
             );
-            info!(
+            debug!(
                 "Reflector {} up recent = {} down recent = {}",
                 time_data.reflector, owd_recent.up_ewma, owd_recent.down_ewma
             );

src/ratecontroller.rs

@@ -235,7 +235,11 @@ impl Ratecontroller {
 
         if state_dl.deltas.len() < 5 || state_ul.deltas.len() < 5 {
             // trigger reselection
-            warn!("Not enough delta values, triggering reselection");
+            warn!(
+                "Not enough delta values (D: {}, U: {}, need 5), triggering reselection",
+                state_dl.deltas.len(),
+                state_ul.deltas.len()
+            );
             let _ = self.reselect_trigger.send(true);
         }
 
@@ -390,8 +394,8 @@ impl Ratecontroller {
                     || self.state_ul.next_rate != self.state_ul.current_rate
                 {
                     info!(
-                        "self.state_ul.next_rate {} self.state_dl.next_rate {}",
-                        self.state_ul.next_rate, self.state_dl.next_rate
+                        "Adjusting rates (D/U): {} / {} kbit/s",
+                        self.state_dl.next_rate as u64, self.state_ul.next_rate as u64
                     );
                 }
 

src/reflector_selector.rs

@@ -62,7 +62,7 @@ impl ReflectorSelector {
 
             // Include all current peers
             for reflector in reflectors_peers.iter() {
-                debug!("Current peer: {}", reflector.to_string());
+                debug!("Current peer: {}", reflector);
                 next_peers.push(*reflector);
             }
 
@@ -72,7 +72,7 @@ impl ReflectorSelector {
                 if next_peers.contains(next_candidate) {
                     continue;
                 }
-                debug!("Next candidate: {}", next_candidate.to_string());
+                debug!("Next candidate: {}", next_candidate);
                 next_peers.push(*next_candidate);
             }
 
@@ -98,11 +98,11 @@ impl ReflectorSelector {
                 if owd_recent.contains_key(&peer) {
                     let rtt = (owd_recent[&peer].down_ewma + owd_recent[&peer].up_ewma) as u64;
                     candidates.push((peer, rtt));
-                    info!("Candidate reflector: {} RTT: {}", peer.to_string(), rtt);
+                    info!("Candidate reflector: {} RTT: {}", peer, rtt);
                 } else {
                     info!(
                         "No data found from candidate reflector: {} - skipping",
-                        peer.to_string()
+                        peer
                     );
                 }
             }