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Implemented `do profile --build --diff`

This commit is contained in:
Samuel Guerra 2022-05-02 23:47:45 -03:00
parent 0002c4f894
commit 4db1495988
2 changed files with 22 additions and 20 deletions
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18
tools/do-tasks/src/main.rs
View File

@ -523,11 +523,13 @@ fn prebuild(mut args: Vec<&str>) {
cmd("cargo", &["build", "-p", "zero-ui-view-prebuilt", "--release"], &[]);
}
// do profile, p [-b --build] [-s --stress <stress-test>]
// do profile, p [-b --build [--diff]] [-s --stress <stress-test>]
// Build time and runtime profiling.
// USAGE:
// profile --build --release
// Profile `rustc` using `-Z self-timings` and summarize.
// profile --build --release --diff
// Profile `rustc` using `-Z self-timings` and compare with previous profile.
// profile -s <stress-test> --release
// Record a tracing profile of the stress test build in release mode.
fn profile(mut args: Vec<&str>) {
@ -536,6 +538,8 @@ fn profile(mut args: Vec<&str>) {
args.push(&t[0]); // the crate prints a list for ""
cmd("cargo", &["run", "--manifest-path", "profile/stress/Cargo.toml"], &args);
} else if take_flag(&mut args, &["-b", "--build"]) {
let diff = take_flag(&mut args, &["--diff"]);
if !args.contains(&"--") {
args.push("--");
}
@ -547,13 +551,19 @@ fn profile(mut args: Vec<&str>) {
&args,
);
let profiles = all_ext("profile/build-time", "mm_profdata");
let mut profiles = all_ext("profile/build-time", "mm_profdata");
if profiles.is_empty() {
fatal("no profile generated\n was `profile/build-time` already built and the profile file deleted?\n try `do clean --profile-build` and then this command again")
}
let profile = newest_file(&profiles);
cmd("summarize", &["summarize", profile.strip_suffix(".mm_profdata").unwrap()], &[]);
if diff && profiles.len() > 1 {
sort_modified(&mut profiles);
let from = profiles[1].strip_suffix(".mm_profdata").unwrap();
let to = profiles[0].strip_suffix(".mm_profdata").unwrap();
cmd("summarize", &["diff", from, to], &[]);
} else {
cmd("summarize", &["summarize", profiles[0].strip_suffix(".mm_profdata").unwrap()], &[]);
}
} else {
help(vec!["profile"])
}

24
tools/do-tasks/src/util.rs
View File

@ -241,22 +241,14 @@ pub fn all_ext(dir: &str, ext: &str) -> Vec<String> {
glob(&format!("{dir}/**/*.{ext}"))
}
/// Gets the last modified file of the list.
pub fn newest_file(files: &[String]) -> &str {
let mut newest = None::<(std::time::SystemTime, &str)>;
for file in files {
if let Ok(t) = std::fs::metadata(file).and_then(|m| m.modified()) {
if let Some(n) = &mut newest {
if t > n.0 {
n.0 = t;
n.1 = file;
}
} else {
newest = Some((t, file));
}
}
}
newest.expect("could not find newest file").1
/// Sort the file list by newest modification first.
pub fn sort_modified(files: &mut [String]) {
files.sort_by_cached_key(|f| {
std::fs::metadata(f)
.and_then(|m| m.modified())
.unwrap_or(std::time::SystemTime::UNIX_EPOCH)
});
files.reverse();
}
// Get all `examples/*.rs` file names.