Move ts calculation closer to when the bpf prog is actually read from…

… libbpf
Netflix · Feb 14, 2024 · 194603c · 194603c
1 parent 1fbe596
commit 194603c
Showing 1 changed file with 4 additions and 5 deletions.
diff --git a/src/main.rs b/src/main.rs
@@ -84,15 +84,14 @@ impl App {
 
             let iter = ProgInfoIter::default();
             for prog in iter {
+                let timestamp_ns = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_nanos();
+
                 let prog_name = prog.name.to_str().unwrap().to_string();
 
                 if prog_name.is_empty() {
                     continue;
                 }
 
-                let duration_since_epoch = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap();
-                let timestamp_nanos = duration_since_epoch.as_nanos();
-
                 let mut bpf_program = BpfProgram {
                     id: prog.id.to_string(),
                     bpf_type: prog.ty.to_string(),
@@ -102,8 +101,8 @@ impl App {
                     prev_run_cnt: 0,
                     run_cnt: prog.run_cnt,
                     prev_timestamp_ns: 0,
-                    timestamp_ns: timestamp_nanos,
-                    num_cpus: num_cpus
+                    timestamp_ns,
+                    num_cpus
                 };
 
                 if let Some(prev_bpf_program) = map.get(&bpf_program.id) {