hotpath 0.29.2

One profiler for CPU, time, memory, SQL, and async code - quickly find and debug performance bottlenecks.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

#[path = "common/support.rs"]
mod common;

#[cfg(all(test, feature = "hotpath"))]
pub mod tests {
    use crate::common::example::Example;

    // cargo run -p test-tokio-async --example basic --features hotpath-alloc,hotpath-alloc-meta
    #[test]
    fn test_combined_alloc_and_alloc_meta_output() {
        let meta_output = std::env::temp_dir().join("hotpath_functions_alloc_meta_test.txt");
        let _ = std::fs::remove_file(&meta_output);

        let report = Example::new("test-tokio-async", "basic")
            .features("hotpath-alloc,hotpath-alloc-meta")
            .env("HOTPATH_REPORT", "functions-alloc")
            .env("HOTPATH_META_REPORT", "functions-alloc")
            .env("HOTPATH_META_OUTPUT_PATH", &meta_output)
            .report();

        let functions_alloc = report
            .functions_alloc
            .expect("No functions_alloc section in report");
        assert!(!functions_alloc.data.is_empty());
        let total_allocated = functions_alloc
            .total_allocated
            .expect("No total_allocated in functions_alloc section");
        assert_ne!(total_allocated, "0 B", "User-level alloc tracking is dead");

        let meta_report =
            std::fs::read_to_string(&meta_output).expect("Meta report file was not written");
        assert!(
            meta_report.contains("alloc-bytes"),
            "Expected alloc-bytes section in meta report:\n{meta_report}"
        );
        let total_line = meta_report
            .lines()
            .find(|line| line.starts_with("Total:"))
            .expect("No Total line in meta report");
        assert_ne!(
            total_line.trim(),
            "Total: 0 B",
            "Meta alloc tracking is dead:\n{meta_report}"
        );

        let _ = std::fs::remove_file(&meta_output);
    }
}