[TRY] perf: spawn (parallelize) io tasks related to tarball

Cargo.toml

@@ -61,6 +61,7 @@ sha2               = { version = "0.10.8" }
 split-first-char   = { version = "0.0.0" }
 ssri               = { version = "9.0.0" }
 strum              = { version = "0.25.0", features = ["derive"] }
+swc_malloc         = { version = "0.5.9" }
 sysinfo            = { version = "0.29.10" }
 tar                = { version = "0.4.40" }
 text-block-macros  = { version = "0.1.1" }
@@ -86,9 +87,9 @@ allow_branch = "main"
 opt-level     = 3
 lto           = "fat"
 codegen-units = 1
-strip         = "symbols"
-debug         = false
-panic         = "abort"   # Let it crash and force ourselves to write safe Rust.
+# strip         = "symbols"
+# debug         = false
+panic = "abort" # Let it crash and force ourselves to write safe Rust.
 
 # Use the `--profile release-debug` flag to show symbols in release mode.
 # e.g. `cargo build --profile release-debug`

crates/cli/Cargo.toml

@@ -32,6 +32,9 @@ home        = { workspace = true }
 miette      = { workspace = true }
 pipe-trait  = { workspace = true }
 tokio       = { workspace = true }
+swc_malloc  = { workspace = true }
+rayon       = { workspace = true }
+num_cpus    = { workspace = true }
 
 [dev-dependencies]
 pacquet-store-dir     = { workspace = true }

crates/cli/src/lib.rs

@@ -1,3 +1,5 @@
+extern crate swc_malloc;
+
 mod cli_args;
 mod state;
 
@@ -8,6 +10,16 @@ use pacquet_diagnostics::enable_tracing_by_env;
 use state::State;
 
 pub async fn main() -> miette::Result<()> {
+    // We use rayon only for blocking syscalls, so we multiply the number of threads by 3.
+    //
+    // If we are going to use rayon for CPU-bound tasks,
+    // we should create an extra threadpool for IO-bound tasks,
+    // and use the global theadpool for CPU-bound tasks.
+    rayon::ThreadPoolBuilder::new()
+        .num_threads(num_cpus::get() * 3)
+        .build_global()
+        .expect("build rayon thread pool");
+
     enable_tracing_by_env();
     set_panic_hook();
     CliArgs::parse().run().await

crates/store-dir/Cargo.toml

@@ -19,6 +19,7 @@ serde       = { workspace = true }
 serde_json  = { workspace = true }
 sha2        = { workspace = true }
 ssri        = { workspace = true }
+rayon       = { worksapce = true }
 
 [dev-dependencies]
 pretty_assertions = { workspace = true }

crates/store-dir/src/cas_file.rs

@@ -24,13 +24,23 @@ impl StoreDir {
     /// Write a file from an npm package to the store directory.
     pub fn write_cas_file(
         &self,
-        buffer: &[u8],
+        scope: &rayon::Scope<'_>,
+        buffer: Vec<u8>,
         executable: bool,
     ) -> Result<(PathBuf, FileHash), WriteCasFileError> {
-        let file_hash = Sha512::digest(buffer);
+        let file_hash = Sha512::digest(&buffer);
         let file_path = self.cas_file_path(file_hash, executable);
         let mode = executable.then_some(EXEC_MODE);
-        ensure_file(&file_path, buffer, mode).map_err(WriteCasFileError::WriteFile)?;
+
+        scope.spawn({
+            let file_path = file_path.clone();
+            move |_| {
+                ensure_file(&file_path, &buffer, mode)
+                    .map_err(WriteCasFileError::WriteFile)
+                    .expect("todo: handle ensure_file error");
+            }
+        });
+
         Ok((file_path, file_hash))
     }
 }

crates/tarball/Cargo.toml

@@ -29,6 +29,7 @@ tar          = { workspace = true }
 tokio        = { workspace = true }
 zune-inflate = { workspace = true }
 tracing      = { workspace = true }
+rayon        = { workspace = true }
 
 [dev-dependencies]
 pretty_assertions = { workspace = true }

crates/tarball/src/lib.rs

@@ -195,73 +195,87 @@ impl<'a> DownloadTarballToStore<'a> {
             Other(TarballError),
         }
         let cas_paths = tokio::task::spawn(async move {
-            package_integrity.check(&response).map_err(TaskError::Checksum)?;
-
-            // TODO: move tarball extraction to its own function
-            // TODO: test it
-            // TODO: test the duplication of entries
-
-            let mut archive = decompress_gzip(&response, package_unpacked_size)
-                .map_err(TaskError::Other)?
-                .pipe(Cursor::new)
-                .pipe(Archive::new);
-
-            let entries = archive
-                .entries()
-                .map_err(TarballError::ReadTarballEntries)
-                .map_err(TaskError::Other)?
-                .filter(|entry| !entry.as_ref().unwrap().header().entry_type().is_dir());
-
-            let ((_, Some(capacity)) | (capacity, None)) = entries.size_hint();
-            let mut cas_paths = HashMap::<OsString, PathBuf>::with_capacity(capacity);
-            let mut pkg_files_idx = PackageFilesIndex { files: HashMap::with_capacity(capacity) };
-
-            for entry in entries {
-                let mut entry = entry.unwrap();
-
-                let file_mode = entry.header().mode().expect("get mode"); // TODO: properly propagate this error
-                let file_is_executable = file_mode::is_all_exec(file_mode);
-
-                // Read the contents of the entry
-                let mut buffer = Vec::with_capacity(entry.size() as usize);
-                entry.read_to_end(&mut buffer).unwrap();
-
-                let entry_path = entry.path().unwrap();
-                let cleaned_entry_path =
-                    entry_path.components().skip(1).collect::<PathBuf>().into_os_string();
-                let (file_path, file_hash) = store_dir
-                    .write_cas_file(&buffer, file_is_executable)
-                    .map_err(TarballError::WriteCasFile)?;
-
-                let tarball_index_key = cleaned_entry_path
-                    .to_str()
-                    .expect("entry path must be valid UTF-8") // TODO: propagate this error, provide more information
-                    .to_string(); // TODO: convert cleaned_entry_path to String too.
-
-                if let Some(previous) = cas_paths.insert(cleaned_entry_path, file_path) {
-                    tracing::warn!(?previous, "Duplication detected. Old entry has been ejected");
+            rayon::scope(|scope| {
+                package_integrity.check(&response).map_err(TaskError::Checksum)?;
+
+                // TODO: move tarball extraction to its own function
+                // TODO: test it
+                // TODO: test the duplication of entries
+
+                let mut archive = decompress_gzip(&response, package_unpacked_size)
+                    .map_err(TaskError::Other)?
+                    .pipe(Cursor::new)
+                    .pipe(Archive::new);
+
+                let entries = archive
+                    .entries()
+                    .map_err(TarballError::ReadTarballEntries)
+                    .map_err(TaskError::Other)?
+                    .filter(|entry| !entry.as_ref().unwrap().header().entry_type().is_dir());
+
+                let ((_, Some(capacity)) | (capacity, None)) = entries.size_hint();
+                let mut cas_paths = HashMap::<OsString, PathBuf>::with_capacity(capacity);
+                let mut pkg_files_idx =
+                    PackageFilesIndex { files: HashMap::with_capacity(capacity) };
+
+                for entry in entries {
+                    let mut entry = entry.unwrap();
+
+                    let file_mode = entry.header().mode().expect("get mode"); // TODO: properly propagate this error
+                    let file_is_executable = file_mode::is_all_exec(file_mode);
+
+                    // Read the contents of the entry
+                    let mut buffer = Vec::with_capacity(entry.size() as usize);
+                    entry.read_to_end(&mut buffer).unwrap();
+
+                    let entry_path = entry.path().unwrap();
+                    let cleaned_entry_path =
+                        entry_path.components().skip(1).collect::<PathBuf>().into_os_string();
+                    let (file_path, file_hash) = store_dir
+                        .write_cas_file(scope, buffer, file_is_executable)
+                        .map_err(TarballError::WriteCasFile)?;
+
+                    let tarball_index_key = cleaned_entry_path
+                        .to_str()
+                        .expect("entry path must be valid UTF-8") // TODO: propagate this error, provide more information
+                        .to_string(); // TODO: convert cleaned_entry_path to String too.
+
+                    if let Some(previous) = cas_paths.insert(cleaned_entry_path, file_path) {
+                        tracing::warn!(
+                            ?previous,
+                            "Duplication detected. Old entry has been ejected"
+                        );
+                    }
+
+                    let checked_at = UNIX_EPOCH.elapsed().ok().map(|x| x.as_millis());
+                    let file_size = entry.header().size().ok();
+                    let file_integrity = format!("sha512-{}", BASE64_STD.encode(file_hash));
+                    let file_attrs = PackageFileInfo {
+                        checked_at,
+                        integrity: file_integrity,
+                        mode: file_mode,
+                        size: file_size,
+                    };
+
+                    if let Some(previous) =
+                        pkg_files_idx.files.insert(tarball_index_key, file_attrs)
+                    {
+                        tracing::warn!(
+                            ?previous,
+                            "Duplication detected. Old entry has been ejected"
+                        );
+                    }
                 }
 
-                let checked_at = UNIX_EPOCH.elapsed().ok().map(|x| x.as_millis());
-                let file_size = entry.header().size().ok();
-                let file_integrity = format!("sha512-{}", BASE64_STD.encode(file_hash));
-                let file_attrs = PackageFileInfo {
-                    checked_at,
-                    integrity: file_integrity,
-                    mode: file_mode,
-                    size: file_size,
-                };
-
-                if let Some(previous) = pkg_files_idx.files.insert(tarball_index_key, file_attrs) {
-                    tracing::warn!(?previous, "Duplication detected. Old entry has been ejected");
-                }
-            }
+                scope.spawn(move |_| {
+                    store_dir
+                        .write_index_file(&package_integrity, &pkg_files_idx)
+                        .map_err(TarballError::WriteTarballIndexFile)
+                        .expect("todo: handle this error");
+                });
 
-            store_dir
-                .write_index_file(&package_integrity, &pkg_files_idx)
-                .map_err(TarballError::WriteTarballIndexFile)?;
-
-            Ok(cas_paths)
+                Ok(cas_paths)
+            })
         })
         .await
         .expect("no join error")