Add perfmon to Stats

Author: caizixian

Cargo.toml

@@ -33,6 +33,7 @@ atomic-traits = "0.2.0"
 atomic = "0.4.6"
 spin = "0.5.2"
 env_logger = "0.8.2"
+pfm = "0.0.3"
 
 [dev-dependencies]
 crossbeam = "0.7.3"

src/util/statistics/stats.rs

@@ -6,6 +6,7 @@ use std::collections::HashMap;
 use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
 use std::sync::Arc;
 use std::sync::Mutex;
+use pfm::Perfmon;
 
 pub const MAX_PHASES: usize = 1 << 12;
 pub const MAX_COUNTERS: usize = 100;
@@ -37,6 +38,7 @@ impl SharedStats {
 pub struct Stats {
     gc_count: AtomicUsize,
     total_time: Arc<Mutex<Timer>>,
+    perfmon: Perfmon,
 
     pub shared: Arc<SharedStats>,
     counters: Mutex<Vec<Arc<Mutex<dyn Counter + Send>>>>,
@@ -55,9 +57,12 @@ impl Stats {
             true,
             false,
         )));
+        let mut perfmon: Perfmon = Default::default();
+        perfmon.initialize().expect("Perfmon failed to initialize");
         Stats {
             gc_count: AtomicUsize::new(0),
             total_time: t.clone(),
+            perfmon,
 
             shared,
             counters: Mutex::new(vec![t]),