fix(metrics): avoid intialize un-necessary system resources

It turned out that new_all function opens FD for un-necessary system
resources, which result in accumulated memory-usage issue.
Hence initialize with nothing and then refresh only related.

ant-logging/Cargo.toml

@@ -19,7 +19,7 @@ opentelemetry-semantic-conventions = { version = "0.12.0", optional = true }
 rand = { version = "~0.8.5", features = ["small_rng"], optional = true }
 serde = { version = "1.0.133", features = ["derive", "rc"] }
 serde_json = { version = "1.0" }
-sysinfo = { version = "0.30.8", default-features = false, optional = true }
+sysinfo = { version = "0.33.1", optional = true }
 thiserror = "1.0.23"
 tokio = { version = "1.32.0", optional = true }
 tracing = { version = "~0.1.26" }

ant-logging/src/metrics.rs

@@ -8,7 +8,7 @@
 
 use serde::Serialize;
 use std::time::Duration;
-use sysinfo::{self, Networks, Pid, System};
+use sysinfo::{self, Networks, Pid, ProcessRefreshKind, ProcessesToUpdate, System};
 use tracing::{debug, error};
 
 const UPDATE_INTERVAL: Duration = Duration::from_secs(15);
@@ -44,9 +44,9 @@ struct ProcessMetrics {
 // Obtains the system metrics every UPDATE_INTERVAL and logs it.
 // The function should be spawned as a task and should be re-run if our main process is restarted.
 pub async fn init_metrics(pid: u32) {
-    let mut sys = System::new_all();
     let mut networks = Networks::new_with_refreshed_list();
     let pid = Pid::from_u32(pid);
+    let mut sys = System::new();
 
     loop {
         refresh_metrics(&mut sys, &mut networks, pid);
@@ -70,10 +70,10 @@ pub async fn init_metrics(pid: u32) {
             }
         };
 
-        let cpu_stat = sys.global_cpu_info();
+        let system_cpu_usage_percent = sys.global_cpu_usage();
         let metrics = Metrics {
             physical_cpu_threads: sys.cpus().len(),
-            system_cpu_usage_percent: cpu_stat.cpu_usage(),
+            system_cpu_usage_percent,
             process,
         };
         match serde_json::to_string(&metrics) {
@@ -87,8 +87,17 @@ pub async fn init_metrics(pid: u32) {
 
 // Refreshes only the metrics that we interested in.
 fn refresh_metrics(sys: &mut System, networks: &mut Networks, pid: Pid) {
-    sys.refresh_process(pid);
     sys.refresh_memory();
-    sys.refresh_cpu();
-    networks.refresh();
+    sys.refresh_cpu_usage();
+    networks.refresh(true);
+
+    // To refresh only the specific process:
+    sys.refresh_processes_specifics(
+        ProcessesToUpdate::Some(&[pid]),
+        true,
+        ProcessRefreshKind::nothing()
+            .with_cpu()
+            .with_disk_usage()
+            .with_memory(),
+    );
 }

ant-networking/Cargo.toml

@@ -62,7 +62,7 @@ self_encryption = "~0.30.0"
 serde = { version = "1.0.133", features = ["derive", "rc"] }
 sha2 = "0.10"
 strum = { version = "0.26.2", features = ["derive"] }
-sysinfo = { version = "0.30.8", default-features = false, optional = true }
+sysinfo = { version = "0.33.1", optional = true }
 thiserror = "1.0.23"
 tiny-keccak = { version = "~2.0.2", features = ["sha3"] }
 tokio = { version = "1.32.0", features = [

ant-networking/src/metrics/mod.rs

@@ -25,7 +25,7 @@ use prometheus_client::{
     metrics::family::Family,
     metrics::{counter::Counter, gauge::Gauge},
 };
-use sysinfo::{Pid, ProcessRefreshKind, System};
+use sysinfo::{Pid, ProcessRefreshKind, ProcessesToUpdate, System};
 use tokio::time::Duration;
 
 const UPDATE_INTERVAL: Duration = Duration::from_secs(15);
@@ -246,12 +246,19 @@ impl NetworkMetricsRecorder {
 
         let pid = Pid::from_u32(std::process::id());
         let process_refresh_kind = ProcessRefreshKind::everything().without_disk_usage();
-        let mut system = System::new_all();
+
+        let mut system = System::new();
         let physical_core_count = system.physical_core_count();
+        info!("Detected physical_core_count {physical_core_count:?}");
 
         tokio::spawn(async move {
             loop {
-                system.refresh_process_specifics(pid, process_refresh_kind);
+                system.refresh_processes_specifics(
+                    ProcessesToUpdate::Some(&[pid]),
+                    true,
+                    process_refresh_kind,
+                );
+
                 if let (Some(process), Some(core_count)) =
                     (system.process(pid), physical_core_count)
                 {
@@ -264,6 +271,7 @@ impl NetworkMetricsRecorder {
                         / 10000.0;
                     let _ = process_cpu_usage_percentage.set(cpu_usage);
                 }
+
                 sleep(UPDATE_INTERVAL).await;
             }
         });

ant-node-manager/Cargo.toml

@@ -51,7 +51,7 @@ semver = "1.0.20"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 service-manager = "0.7.0"
-sysinfo = "0.30.12"
+sysinfo = "0.33.1"
 thiserror = "1.0.23"
 tokio = { version = "1.26", features = ["full"] }
 tracing = { version = "~0.1.26" }

ant-node/Cargo.toml

@@ -62,7 +62,7 @@ rayon = "1.8.0"
 self_encryption = "~0.30.0"
 serde = { version = "1.0.133", features = ["derive", "rc"] }
 strum = { version = "0.26.2", features = ["derive"] }
-sysinfo = { version = "0.30.8", default-features = false }
+sysinfo = "0.33.1"
 thiserror = "1.0.23"
 tokio = { version = "1.32.0", features = [
     "io-util",

ant-node/src/bin/antnode/main.rs

@@ -413,7 +413,7 @@ You can check your reward balance by running:
         }
     });
     let ctrl_tx_clone_cpu = ctrl_tx.clone();
-    // Monitor host CPU usage
+    // Monitor Host CPU usage
     tokio::spawn(async move {
         use rand::{thread_rng, Rng};
 
@@ -427,18 +427,28 @@ You can check your reward balance by running:
         const JITTER_MIN_S: u64 = 1;
         const JITTER_MAX_S: u64 = 15;
 
-        let mut sys = System::new_all();
-
         let mut high_cpu_count: u8 = 0;
 
+        let mut system = System::new();
+        system.refresh_cpu_usage();
+
         // Random initial delay between 1 and 5 minutes
         let initial_delay =
             Duration::from_secs(thread_rng().gen_range(INITIAL_DELAY_MIN_S..=INITIAL_DELAY_MAX_S));
         tokio::time::sleep(initial_delay).await;
 
         loop {
-            sys.refresh_cpu();
-            let cpu_usage = sys.global_cpu_info().cpu_usage();
+            system.refresh_cpu_usage();
+
+            let cpu_usage = system.global_cpu_usage();
+
+            if cpu_usage > CPU_USAGE_THRESHOLD {
+                high_cpu_count += 1;
+            } else {
+                high_cpu_count = 0;
+            }
+
+            info!("Detected Host CPU usage is {cpu_usage:?}.");
 
             if cpu_usage > CPU_USAGE_THRESHOLD {
                 high_cpu_count += 1;
@@ -458,7 +468,6 @@ You can check your reward balance by running:
                 }
                 break;
             }
-
             // Add jitter to the interval
             let jitter = Duration::from_secs(thread_rng().gen_range(JITTER_MIN_S..=JITTER_MAX_S));
             tokio::time::sleep(CPU_CHECK_INTERVAL + jitter).await;

ant-service-management/Cargo.toml

@@ -23,7 +23,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 semver = "1.0.20"
 service-manager = "0.7.0"
-sysinfo = "0.30.12"
+sysinfo = "0.33.1"
 thiserror = "1.0.23"
 tokio = { version = "1.32.0", features = ["time"] }
 tonic = { version = "0.6.2" }

node-launchpad/Cargo.toml

@@ -63,7 +63,7 @@ serde_json = "1.0.107"
 signal-hook = "0.3.17"
 strip-ansi-escapes = "0.2.0"
 strum = { version = "0.26.1", features = ["derive"] }
-sysinfo = "0.30.12"
+sysinfo = "0.33.1"
 throbber-widgets-tui = "0.8.0"
 tokio = { version = "1.32.0", features = ["full"] }
 tokio-util = "0.7.9"