perf(search): benchmark smart sort (#2202)

crates/atuin-history/Cargo.toml

@@ -39,3 +39,12 @@ tracing = "0.1"
 uuid = { workspace = true }
 unicode-segmentation = "1.11.0"
 sysinfo = "0.30.7"
+
+[dev-dependencies]
+tracing-tree = "0.3"
+divan = "0.1.14"
+rand = { workspace = true }
+
+[[bench]]
+name = "smart_sort"
+harness = false

crates/atuin-history/benches/smart_sort.rs

@@ -0,0 +1,35 @@
+use atuin_client::history::History;
+use atuin_history::sort::sort;
+
+use rand::Rng;
+
+fn main() {
+    // Run registered benchmarks.
+    divan::main();
+}
+
+// Smart sort usually runs on 200 entries, test on a few sizes
+#[divan::bench(args=[100, 200, 400, 800, 1600, 10000])]
+fn smart_sort(lines: usize) {
+    // benchmark a few different sizes of "history"
+    // first we need to generate some history. This will use a whole bunch of memory, sorry
+    let mut rng = rand::thread_rng();
+    let now = time::OffsetDateTime::now_utc().unix_timestamp();
+
+    let possible_commands = ["echo", "ls", "cd", "grep", "atuin", "curl"];
+    let mut commands = Vec::<History>::with_capacity(lines);
+
+    for _ in 0..lines {
+        let command = possible_commands[rng.gen_range(0..possible_commands.len())];
+
+        let command = History::import()
+            .command(command)
+            .timestamp(time::OffsetDateTime::from_unix_timestamp(rng.gen_range(0..now)).unwrap())
+            .build()
+            .into();
+
+        commands.push(command);
+    }
+
+    let _ = sort("curl", commands);
+}

crates/atuin-history/src/lib.rs

@@ -1 +1,2 @@
+pub mod sort;
 pub mod stats;

crates/atuin/src/command/client/search.rs

@@ -21,7 +21,6 @@ mod engines;
 mod history_list;
 mod inspector;
 mod interactive;
-mod sort;
 
 pub use duration::format_duration_into;
 

crates/atuin/src/command/client/search/interactive.rs

@@ -31,7 +31,6 @@ use super::{
     cursor::Cursor,
     engines::{SearchEngine, SearchState},
     history_list::{HistoryList, ListState, PREFIX_LENGTH},
-    sort,
 };
 
 use crate::{command::client::search::engines, VERSION};
@@ -96,7 +95,10 @@ impl State {
         self.results_len = results.len();
 
         if smart_sort {
-            Ok(sort::sort(self.search.input.as_str(), results))
+            Ok(atuin_history::sort::sort(
+                self.search.input.as_str(),
+                results,
+            ))
         } else {
             Ok(results)
         }