feat: add statsDaemon.interval setting, pass --interval to nova-stats

stats-daemon/src/main.rs

@@ -159,7 +159,22 @@ fn emit_mem(out: &mut impl Write) {
     }
 }
 
+fn parse_interval_ms() -> u64 {
+    let args: Vec<String> = std::env::args().collect();
+    let mut i = 1;
+    while i < args.len() {
+        if args[i] == "--interval" {
+            if let Some(ms) = args.get(i + 1).and_then(|s| s.parse().ok()) {
+                return ms;
+            }
+        }
+        i += 1;
+    }
+    1000
+}
+
 fn main() {
+    let interval = Duration::from_millis(parse_interval_ms());
     let stdout = io::stdout();
     let mut out = io::BufWriter::new(stdout.lock());
     let mut prev: Vec<Sample> = vec![];
@@ -181,8 +196,8 @@ fn main() {
         tick += 1;
 
         let elapsed = t0.elapsed();
-        if elapsed < Duration::from_secs(1) {
-            thread::sleep(Duration::from_secs(1) - elapsed);
+        if elapsed < interval {
+            thread::sleep(interval - elapsed);
         }
     }
 }