Initial Dever 0.0.1

test/rust/performance/memory.rs

@@ -0,0 +1,27 @@
+// 只编入 --memory 产物，复用原输入与两侧函数；普通计时产物不改变。
+// 全进程初始化和输入也会被探针计数，零次调用作为相同场景的基线。
+fn compare_output<const BORROW: bool, Input: ?Sized, Output: PartialEq + std::fmt::Debug>(name: &str, values: &Input, _: &Input, _: usize, generated: fn(&Input) -> Result<Output, Fault>, reference: fn(&Input) -> Result<Output, Fault>, score: fn(&Output) -> u64, reference_name: &str) {
+    let selected = std::env::var("DEVER_HEAP_CASE").expect("DEVER_HEAP_CASE");
+    if selected != name { return; }
+    let implementation = std::env::var("DEVER_HEAP_IMPL").expect("DEVER_HEAP_IMPL");
+    let count = std::env::var("DEVER_HEAP_COUNT").expect("DEVER_HEAP_COUNT").parse::<usize>().unwrap();
+    let operation = if implementation == "dever" { generated } else {
+        assert_eq!(implementation, reference_name);
+        reference
+    };
+    let operation = black_box(operation);
+    let mut checksum = 0u64;
+    for _ in 0..count {
+        let value = black_box(operation(black_box(values)).unwrap());
+        checksum = checksum.wrapping_add(black_box(score(&value)));
+        drop(value);
+    }
+    println!("heap,{name},{implementation},{count},{checksum}");
+    // RSS 单独在未加载分配探针的进程读取，避免把探针静态表算进语言成本。
+    if std::env::var_os("DEVER_HEAP_RSS").is_some() {
+        let status = std::fs::read_to_string("/proc/self/status").unwrap();
+        for line in status.lines().filter(|line| line.starts_with("VmRSS:") || line.starts_with("VmHWM:")) {
+            println!("heap_rss,{line}");
+        }
+    }
+}