diff --git a/binding/rust/Makefile b/binding/rust/Makefile
new file mode 100644
index 0000000..b73a6ba
--- /dev/null
+++ b/binding/rust/Makefile
@@ -0,0 +1,12 @@
+# ip2region rust binding makefile
+all: build
+.PHONY: all
+
+build:
+	cargo build -r
+test:
+	cargo test
+bench:
+	cargo bench
+clean:
+	find ./ -name xdb_searcher | xargs rm -f
\ No newline at end of file
diff --git a/binding/rust/ReadMe.md b/binding/rust/ReadMe.md
index fcd3c56..91eb254 100644
--- a/binding/rust/ReadMe.md
+++ b/binding/rust/ReadMe.md
@@ -1,7 +1,79 @@
-# ip2region rust 查询客户端实现
+# ip2region xdb rust 查询客户端实现
 
 # 使用方式
 
+### 缓存整个 `xdb` 数据
+
+可以预先加载整个 ip2region.xdb 到内存，完全基于内存查询，类似于之前的 memory search 查询。
+```golang
+// 1、从 dbPath 加载整个 xdb 到内存
+cBuff, err := LoadContentFromFile(dbPath)
+if err != nil {
+    fmt.Printf("failed to load content from `%s`: %s\n", dbPath, err)
+    return
+}
+
+// 2、用全局的 cBuff 创建完全基于内存的查询对象。
+searcher, err := xdb.NewWithBuffer(cBuff)
+if err != nil {
+    fmt.Printf("failed to create searcher with content: %s\n", err)
+    return
+}
+
+// 备注：并发使用，用整个 xdb 缓存创建的 searcher 对象可以安全用于并发。
+```
+
+# 编译测试程序
+
+通过如下方式编译得到 xdb_searcher 可执行程序：
+```bash
+# 切换到 golang binding 根目录
+make
+```
+
+
 # 查询测试
 
+通过 `xdb_searcher search` 命令来测试 ip2region.xdb 的查询：
+```
+➜  golang git:(v2.0_xdb) ./xdb_searcher search
+./xdb_searcher search [command options]
+options:
+ --db string              ip2region binary xdb file path
+ --cache-policy string    cache policy: file/vectorIndex/content
+```
+
+例如：使用默认的 data/ip2region.xdb 进行查询测试
+```bash
+➜  golang git:(v2.0_xdb) ✗ ./xdb_searcher search --db=../../data/ip2region.xdb
+ip2region xdb searcher test program, type `quit` to exit
+ip2region>> 1.2.3.4
+{region:美国|0|华盛顿|0|谷歌, took:101.57µs}
+```
+
+输入 ip 地址进行查询即可，输入 quit 退出测试程序。可以设置 `cache-policy` 为 file/vectorIndex/content 来测试不同的查询缓存机制。
+
+
 # bench 测试
+
+通过 `xdb_searcher bench` 命令来进行自动 bench 测试，一方面确保程序和 `xdb` 文件都没有错误，另一方面通过大量的查询得到平均查询性能：
+```bash
+➜  golang git:(v2.0_xdb) ./xdb_searcher bench
+./xdb_searcher bench [command options]
+options:
+ --db string              ip2region binary xdb file path
+ --src string             source ip text file path
+ --cache-policy string    cache policy: file/vectorIndex/content
+```
+
+例如：通过 data/ip2region.xdb 和 data/ip.merge.txt 进行 bench 测试：
+```bash
+➜  golang git:(v2.0_xdb) ✗ ./xdb_searcher bench --db=../../data/ip2region.xdb --src=../../data/ip.merge.txt
+Bench finished, {total: 3417955, took: 28.211578339s, cost: 8253 ns/op}
+```
+
+可以设置 `cache-policy` 参数来分别测试 file/vectorIndex/content 不同缓存实现机制的效率。
+
+*请注意 bench 使用的 src 文件需要是生成对应的 xdb 文件的相同的源文件*。
+
+bench 程序会逐行读取 `src` 指定的源IP文件，然后每个 IP 段选取 5 个固定位置的 IP 进行测试，以确保查询的 region 信息和原始的 region 信息是相同。测试途中没有调试信息的输出，有错误会打印错误信息并且终止运行，所以看到 `Bench finished` 就表示 bench 成功了，cost 是表示每次查询操作的平均时间(ns)。
diff --git a/binding/rust/bin/src/cmd.rs b/binding/rust/bin/src/cmd.rs
index 64e5ee2..74217d9 100644
--- a/binding/rust/bin/src/cmd.rs
+++ b/binding/rust/bin/src/cmd.rs
@@ -4,6 +4,6 @@ pub fn get_matches() -> ArgMatches {
     Command::new("ip2region")
         .version("0.1")
         .about("ip2region bin program")
-        .arg(arg!(--xdb <xdb> "the xdb filepath, you can set this field like ../data/ip2region.xdb").required(true))
+        .arg(arg!(--xdb <xdb> "the xdb filepath, you can set this field like ../data/ip2region.xdb"))
         .get_matches()
 }
diff --git a/binding/rust/bin/src/main.rs b/binding/rust/bin/src/main.rs
index 54d63db..2279db4 100644
--- a/binding/rust/bin/src/main.rs
+++ b/binding/rust/bin/src/main.rs
@@ -1,9 +1,29 @@
+use std::env;
+use std::io::Write;
+use std::time::Instant;
+
 mod cmd;
 
 fn main() {
-    let matches = cmd::get_matches();
-    let xdb_filepath = matches.get_one::<String>("xdb").unwrap();
-    println!("{xdb_filepath}----");
-    // let result = search::search_by_ip("1.2.165.128");
-    // println!("{:?}", result);
+    env::var("XDB_FILEPATH").unwrap_or_else(|_| {
+        let matches = cmd::get_matches();
+        let xdb_filepath = matches.get_one::<String>("xdb").unwrap();
+        env::set_var("XDB_FILEPATH", xdb_filepath);
+        xdb_filepath.to_owned()
+    });
+    search::global_searcher();
+    println!("ip2region xdb searcher test program, type `quit` to exit");
+    loop {
+        print!("ip2region>> ");
+        std::io::stdout().flush().unwrap();
+        let mut line = String::new();
+        std::io::stdin().read_line(&mut line).unwrap();
+        if line.contains("quit") {
+            break
+        }
+        let now = Instant::now();
+        let result = search::search_by_ip(line.trim());
+        println!("region: {:?}, took: {:?}", result, now.elapsed());
+    }
+
 }
diff --git a/binding/rust/search/Cargo.toml b/binding/rust/search/Cargo.toml
index e6b096e..142fd5c 100644
--- a/binding/rust/search/Cargo.toml
+++ b/binding/rust/search/Cargo.toml
@@ -12,9 +12,9 @@ license = "Apache-2.0"
 once_cell = "1.16"
 
 [dev-dependencies]
-criterion = "0.3"
+criterion = "0.4"
 rand = "0.8"
 
-#[[bench]]
-#name = "search"
-#harness = false
+[[bench]]
+name = "search"
+harness = false
diff --git a/binding/rust/search/benches/search.rs b/binding/rust/search/benches/search.rs
index a7270cb..192113e 100644
--- a/binding/rust/search/benches/search.rs
+++ b/binding/rust/search/benches/search.rs
@@ -1,13 +1,14 @@
-// use criterion::{black_box, criterion_group, criterion_main, Criterion, BenchmarkId};
-// use rand;
-//
-// fn ip_search_benchmark(c: &mut Criterion) {
-//     let searcher = search::Searcher::new("../../../data/ip2region.xdb").unwrap();
-//     c.bench_with_input(BenchmarkId::new("searcher", searcher),
-//     &searcher, |b, &seacher| {
-//             b.iter(|| seacher.search_by_ip(black_box(rand::random::<u32>())));
-//         });
-// }
-//
-// criterion_group!(benches, ip_search_benchmark);
-// criterion_main!(benches);
+use criterion::{Criterion, criterion_group, criterion_main};
+use rand;
+
+use search::search_by_ip;
+
+fn ip_search_benchmark(c: &mut Criterion) {
+    c.bench_function("ip_search_bench", |b| b.iter(|| {
+        let ip = rand::random::<u32>();
+        search_by_ip(ip).unwrap();
+    }));
+}
+
+criterion_group!(benches, ip_search_benchmark);
+criterion_main!(benches);
diff --git a/binding/rust/search/src/lib.rs b/binding/rust/search/src/lib.rs
index 7591380..09dd867 100644
--- a/binding/rust/search/src/lib.rs
+++ b/binding/rust/search/src/lib.rs
@@ -4,6 +4,7 @@ use std::error::Error;
 use std::fs::File;
 use std::io::Read;
 use std::fmt;
+use std::env;
 use std::fmt::Formatter;
 
 use once_cell::sync::OnceCell;
@@ -22,10 +23,13 @@ pub struct Searcher {
     pub buffer: Vec<u8>,
 }
 
-fn global_searcher() -> &'static Searcher {
+pub fn global_searcher() -> &'static Searcher {
     static SEARCHER: OnceCell<Searcher> = OnceCell::new();
     SEARCHER.get_or_init(|| {
-        Searcher::new(DEFAULT_XDB_FILEPATH).unwrap()
+        let xdp_filepath = env::var("XDB_FILEPATH")
+            .unwrap_or_else(|_| DEFAULT_XDB_FILEPATH.to_owned());
+        println!("init xdb searcher at {xdp_filepath}");
+        Searcher::new(xdp_filepath.as_str()).unwrap()
     })
 }
 
@@ -103,6 +107,7 @@ mod tests {
     use super::*;
     use std::net::Ipv4Addr;
     use std::str::FromStr;
+    use std::thread;
 
     const TEST_IP_FILEPATH: &str = "../../../data/ip.test.txt";
 
@@ -135,4 +140,15 @@ mod tests {
             }
         }
     }
+
+    #[test]
+    fn test_multi_thread() {
+        let handle = thread::spawn(|| {
+            let result = search_by_ip("2.2.2.2").unwrap();
+            println!("ip search in spawn: {result}");
+        });
+        let r = search_by_ip("1.1.1.1").unwrap();
+        println!("ip search in main thread: {r}");
+        handle.join().unwrap();
+    }
 }