Add --skip-read flag to the traversal benchmark

Summary: Sometimes we only want to benchmark traversal and skip reading the file contents.

Reviewed By: akushner

Differential Revision: D83899650

fbshipit-source-id: f4112cd3a56041e673bcc82fde1f615be973be67

Author: giorgidze

eden/fs/cli_rs/edenfs-commands/src/debug/bench/cmd.rs

@@ -86,6 +86,10 @@ pub enum BenchCmd {
         /// Output results in JSON format
         #[clap(long)]
         json: bool,
+
+        /// Skip the file reading benchmark and display only traversal results
+        #[clap(long)]
+        skip_read: bool,
     },
 }
 
@@ -164,6 +168,7 @@ impl crate::Subcommand for BenchCmd {
                 no_progress,
                 resource_usage,
                 json,
+                skip_read,
             } => {
                 if !*json {
                     println!(
@@ -179,6 +184,7 @@ impl crate::Subcommand for BenchCmd {
                         *follow_symlinks,
                         *no_progress,
                         *resource_usage,
+                        *skip_read,
                         thrift_io.as_deref(),
                     )
                     .await?
@@ -189,6 +195,7 @@ impl crate::Subcommand for BenchCmd {
                         *follow_symlinks,
                         *no_progress,
                         *resource_usage,
+                        *skip_read,
                     )?
                 };
 

eden/fs/cli_rs/edenfs-commands/src/debug/bench/traversal.rs

@@ -251,6 +251,7 @@ pub async fn bench_traversal_thrift_read(
     follow_symlinks: bool,
     no_progress: bool,
     resource_usage: bool,
+    skip_read: bool,
     fbsource_path: Option<&str>,
 ) -> Result<Benchmark> {
     let path = Path::new(dir_path);
@@ -314,6 +315,23 @@ pub async fn bench_traversal_thrift_read(
         types::Unit::Dirs,
         Some(0),
     );
+    result.add_metric(
+        "Total symlinks skipped",
+        ft.symlink_skipped_count as f64,
+        types::Unit::Symlinks,
+        Some(0),
+    );
+    result.add_metric(
+        "Total symlinks traversed",
+        ft.symlink_traversed_count as f64,
+        types::Unit::Symlinks,
+        Some(0),
+    );
+
+    // Return early if skip_read is true
+    if skip_read {
+        return Ok(result);
+    }
 
     let read_progress = if no_progress {
         None
@@ -445,6 +463,7 @@ pub fn bench_traversal_fs_read(
     follow_symlinks: bool,
     no_progress: bool,
     resource_usage: bool,
+    skip_read: bool,
 ) -> Result<Benchmark> {
     let path = Path::new(dir_path);
     if !path.exists() || !path.is_dir() {
@@ -521,6 +540,11 @@ pub fn bench_traversal_fs_read(
         Some(0),
     );
 
+    // Return early if skip_read is true
+    if skip_read {
+        return Ok(result);
+    }
+
     let read_progress = if no_progress {
         None
     } else {