diff --git a/src/klotski_core/benchmark/benchmark.h b/src/klotski_core/benchmark/benchmark.h
index 973c3e0..b7036aa 100644
--- a/src/klotski_core/benchmark/benchmark.h
+++ b/src/klotski_core/benchmark/benchmark.h
@@ -8,15 +8,16 @@
 /// returned according to the specified time format (seconds, milliseconds,
 /// microseconds, nanoseconds).
 
-/// The test items are all multi-thread safe(except `data_prepare`), but you
-/// should not run multiple test items at the same time, which will lead to
-/// unstable tests in many ways, such as changes in CPU turbo frequency.
+/// The test items are all multi-thread safe, but you should not run multiple
+/// test items at the same time, which will lead to unstable tests in many ways,
+/// such as changes in CPU turbo frequency.
 
 /// Pay attention to the two test items `basic_ranges` and `all_cases`, they can
 /// only be run once (the reason for the construction of static data), and cannot
 /// be run after other global related items.
 
 #include <ctime>
+#include <mutex>
 #include <string>
 #include <vector>
 #include <cstdint>
@@ -64,12 +65,14 @@ namespace klotski {
 
     private:
         static bool data_ready;
+        static std::mutex data_building;
         static std::vector<RawCode> all_raw_codes;
         static std::vector<ShortCode> all_short_codes;
         static std::vector<CommonCode> all_common_codes;
         static std::vector<std::string> all_short_codes_str;
         static std::vector<std::string> all_common_codes_str;
 
+        static void build_data() noexcept;
         static uint32_t random_seed() noexcept;
         static double time_format(clock_t start, TIME format) noexcept;
         static std::vector<uint32_t> generate_u32_rand(uint32_t count) noexcept;
diff --git a/src/klotski_core/benchmark/chore.cc b/src/klotski_core/benchmark/chore.cc
index 1452070..2226d7a 100644
--- a/src/klotski_core/benchmark/chore.cc
+++ b/src/klotski_core/benchmark/chore.cc
@@ -8,6 +8,7 @@ using klotski::CommonCode;
 using klotski::Benchmark;
 
 bool Benchmark::data_ready = false;
+std::mutex Benchmark::data_building;
 std::vector<RawCode> Benchmark::all_raw_codes;
 std::vector<ShortCode> Benchmark::all_short_codes;
 std::vector<CommonCode> Benchmark::all_common_codes;
@@ -74,10 +75,18 @@ std::vector<uint64_t> Benchmark::generate_u64_rand(uint32_t count) noexcept {
 }
 
 void Benchmark::data_preparation() noexcept {
-    if (Benchmark::data_ready) {
-        return;
+    if (!Benchmark::data_ready) {
+        if (Benchmark::data_building.try_lock()) { // mutex lock success
+            build_data(); // start build process
+            Benchmark::data_ready = true; // set available flag
+        } else {
+            Benchmark::data_building.lock(); // blocking waiting
+        }
+        Benchmark::data_building.unlock(); // release mutex
     }
+}
 
+void Benchmark::build_data() noexcept {
     /// short code data preparation
     std::vector<uint32_t> tmp(klotski::SHORT_CODE_LIMIT);
     std::iota(tmp.begin(), tmp.end(), 0);
@@ -114,6 +123,4 @@ void Benchmark::data_preparation() noexcept {
     for (auto &&common_code : all_common_codes) {
         all_raw_codes.emplace_back(common_code.to_raw_code());
     }
-
-    Benchmark::data_ready = true;
 }
diff --git a/src/rust_ffi/src/benchmark/ffi.rs b/src/rust_ffi/src/benchmark/ffi.rs
index 181c13b..4429ee2 100644
--- a/src/rust_ffi/src/benchmark/ffi.rs
+++ b/src/rust_ffi/src/benchmark/ffi.rs
@@ -87,3 +87,197 @@ pub(crate) fn common_code_check_random() -> Duration {
         Duration::from_ns(Core::benchmark_common_code_check_random_ns())
     }
 }
+
+pub(crate) fn short_code_to_string() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_short_code_to_string_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn short_code_from_string() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_short_code_from_string_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn common_code_to_string() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_common_code_to_string_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn common_code_from_string() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_common_code_from_string_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn common_code_to_raw_code() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_common_code_to_raw_code_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn raw_code_to_common_code() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_raw_code_to_common_code_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn common_code_to_short_code() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_common_code_to_short_code_us();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_us(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn short_code_to_common_code() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_short_code_to_common_code_us();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_us(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn common_code_to_short_code_fast() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_common_code_to_short_code_fast_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn short_code_to_common_code_fast() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_short_code_to_common_code_fast_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn vertical_mirror_check() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_vertical_mirror_check_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn horizontal_mirror_check() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_horizontal_mirror_check_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn vertical_mirror_convert() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_vertical_mirror_convert_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+pub(crate) fn horizontal_mirror_convert() -> Result<Duration, &'static str> {
+    unsafe {
+        let time = Core::benchmark_horizontal_mirror_convert_ns();
+        match time.total_cmp(&(0 as f64)) {
+            Ordering::Greater => Ok(Duration::from_ns(time)),
+            _ => Err("data not ready"),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn basic() {
+        range_flip();
+        preparation();
+        warm_up(0x1_000_000);
+        assert!(basic_ranges().is_err());
+        assert!(all_cases().is_err());
+    }
+
+    #[test]
+    fn checker() {
+        preparation();
+        raw_code_check_random();
+        short_code_check_random();
+        common_code_check_random();
+        assert!(raw_code_check().is_ok());
+        assert!(short_code_check().is_ok());
+        assert!(common_code_check().is_ok());
+    }
+
+    #[test]
+    fn string() {
+        preparation();
+        assert!(short_code_to_string().is_ok());
+        assert!(short_code_from_string().is_ok());
+        assert!(common_code_to_string().is_ok());
+        assert!(common_code_from_string().is_ok());
+    }
+
+    #[test]
+    fn convert() {
+        preparation();
+        assert!(common_code_to_raw_code().is_ok());
+        assert!(raw_code_to_common_code().is_ok());
+        assert!(common_code_to_short_code().is_ok());
+        assert!(short_code_to_common_code().is_ok());
+        assert!(common_code_to_short_code_fast().is_ok());
+        assert!(short_code_to_common_code_fast().is_ok());
+    }
+
+    #[test]
+    fn mirror() {
+        preparation();
+        assert!(vertical_mirror_check().is_ok());
+        assert!(horizontal_mirror_check().is_ok());
+        assert!(vertical_mirror_convert().is_ok());
+        assert!(horizontal_mirror_convert().is_ok());
+    }
+}
diff --git a/src/rust_ffi/src/benchmark/mod.rs b/src/rust_ffi/src/benchmark/mod.rs
index 988c7d1..d1261d5 100644
--- a/src/rust_ffi/src/benchmark/mod.rs
+++ b/src/rust_ffi/src/benchmark/mod.rs
@@ -7,12 +7,7 @@ pub fn demo() {
 
     use ffi::*;
 
-    // println!("demo: {}", Duration::from_ps(233 as f64).to_string());
-    // println!("demo: {}", Duration::from_ns(233 as f64).to_string());
-    // println!("demo: {}", Duration::from_us(233 as f64).to_string());
-    // println!("demo: {}", Duration::from_ms(233 as f64).to_string());
-    // println!("demo: {}", Duration::from_ms(233000 as f64).to_string());
-
+    println!("start benchmark\n");
     println!("warm up: {}", warm_up(0x100_0000));
 
     println!("range flip: {}", range_flip());
@@ -30,6 +25,23 @@ pub fn demo() {
     println!("short code check random: {}", short_code_check_random());
     println!("common code check random: {}", common_code_check_random());
 
-    println!("benchmark complete");
+    println!("short code to string: {}", short_code_to_string().unwrap());
+    println!("short code from string: {}", short_code_from_string().unwrap());
+    println!("common code to string: {}", common_code_to_string().unwrap());
+    println!("common code from string: {}", common_code_from_string().unwrap());
+
+    println!("common code to raw code: {}", common_code_to_raw_code().unwrap());
+    println!("raw code to common code: {}", raw_code_to_common_code().unwrap());
+    println!("common code to short code: {}", common_code_to_short_code().unwrap());
+    println!("short code to common code: {}", short_code_to_common_code().unwrap());
+    println!("common code to short code fast: {}", common_code_to_short_code_fast().unwrap());
+    println!("short code to common code fast: {}", short_code_to_common_code_fast().unwrap());
+
+    println!("vertical mirror check: {}", vertical_mirror_check().unwrap());
+    println!("horizontal mirror check: {}", horizontal_mirror_check().unwrap());
+    println!("vertical mirror convert: {}", vertical_mirror_convert().unwrap());
+    println!("horizontal mirror convert: {}", horizontal_mirror_convert().unwrap());
+
+    println!("\nbenchmark complete");
 
 }