diff --git a/pom.xml b/pom.xml
index a6e2948..9fccae8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -35,25 +35,6 @@
 
 	<build>
 		<plugins>
-			<plugin>
-				<groupId>org.jacoco</groupId>
-				<artifactId>jacoco-maven-plugin</artifactId>
-				<version>0.8.5</version>
-				<executions>
-					<execution>
-						<goals>
-							<goal>prepare-agent</goal>
-						</goals>
-					</execution>
-					<execution>
-						<id>report</id>
-						<phase>test</phase>
-						<goals>
-							<goal>report</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
 			<plugin>
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>3.8.1</version>
@@ -62,16 +43,6 @@
 					<target>1.8</target>
 				</configuration>
 			</plugin>
-			<plugin>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<version>2.22.2</version>
-				<configuration>
-					<systemPropertyVariables>
-						<redis-hosts>${redis-hosts}</redis-hosts>
-					</systemPropertyVariables>
-				</configuration>
-			</plugin>
-
 		</plugins>
 	</build>
 
diff --git a/src/main/java/com/zeekling/redis/speed/ExistsVSGet.java b/src/main/java/com/zeekling/redis/speed/ExistsVSGet.java
new file mode 100644
index 0000000..8086774
--- /dev/null
+++ b/src/main/java/com/zeekling/redis/speed/ExistsVSGet.java
@@ -0,0 +1,37 @@
+package com.zeekling.redis.speed;
+
+import redis.clients.jedis.Jedis;
+
+/**
+ * @author zeekling
+ */
+public class ExistsVSGet {
+
+ private static final Jedis jedis = new Jedis("127.0.0.1", 6379);
+
+ private static void exists() {
+  long begin = System.nanoTime();
+  jedis.exists("key_aaaaaaa");
+  long end = System.nanoTime();
+  System.out.println("exists cost=" + (end - begin)/1000);
+ }
+ private static void get() {
+  long begin = System.nanoTime();
+  jedis.exists("key_aaaaaaa");
+  long end = System.nanoTime();
+  System.out.println("get cost=" + (end - begin)/1000);
+ }
+
+ private static void test() {
+  for (int i=1; i< 10; i++) {
+   jedis.get("0000000" + i);
+  }
+ }
+
+ public static void main(String[] args) {
+  ExistsVSGet.test();
+  ExistsVSGet.get();
+  ExistsVSGet.exists();
+ }
+
+}
diff --git a/src/main/java/com/zeekling/redis/speed/FillData.java b/src/main/java/com/zeekling/redis/speed/FillData.java
new file mode 100644
index 0000000..d7b744a
--- /dev/null
+++ b/src/main/java/com/zeekling/redis/speed/FillData.java
@@ -0,0 +1,29 @@
+package com.zeekling.redis.speed;
+
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.params.SetParams;
+
+/**
+ * @author zeekling
+ */
+public class FillData {
+
+    private static final Jedis jedis = new Jedis("127.0.0.1", 6379);
+
+    private static void fillData(long min, long max, SetParams params) {
+        for (long i = min; i < max; i++) {
+            jedis.set("key_0000000" + i, "value_0000000" + i, params);
+            if (i % 1000 == 0) {
+                System.out.println("count=" + i);
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        SetParams params = new SetParams();
+        FillData.fillData(0, 5000000, params);
+        params.ex(50000L);
+        FillData.fillData(50000000, 55000000, params);
+    }
+
+}
diff --git a/target/maven-archiver/pom.properties b/target/maven-archiver/pom.properties
new file mode 100644
index 0000000..41ed41b
--- /dev/null
+++ b/target/maven-archiver/pom.properties
@@ -0,0 +1,5 @@
+#Generated by Maven
+#Thu Nov 10 22:51:03 HKT 2022
+groupId=com.zeekling.redis
+artifactId=jedis-test
+version=1.0-SNAPSHOT
diff --git a/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst b/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
new file mode 100644
index 0000000..2de10b5
--- /dev/null
+++ b/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
@@ -0,0 +1,4 @@
+com/zeekling/redis/lock/RedisDistributedLockImpl.class
+com/zeekling/redis/JedisClusterTest.class
+com/zeekling/redis/RedisPool.class
+com/zeekling/redis/lock/DistributedLock.class
diff --git a/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst b/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
new file mode 100644
index 0000000..69788dc
--- /dev/null
+++ b/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
@@ -0,0 +1,4 @@
+/home/zeekling/project/gitea/redis-test/src/main/java/com/zeekling/redis/lock/RedisDistributedLockImpl.java
+/home/zeekling/project/gitea/redis-test/src/main/java/com/zeekling/redis/JedisClusterTest.java
+/home/zeekling/project/gitea/redis-test/src/main/java/com/zeekling/redis/lock/DistributedLock.java
+/home/zeekling/project/gitea/redis-test/src/main/java/com/zeekling/redis/RedisPool.java
diff --git a/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst b/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst
new file mode 100644
index 0000000..4d4b863
--- /dev/null
+++ b/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst
@@ -0,0 +1,2 @@
+com/zeekling/redis/RedisDistributedLockTest.class
+com/zeekling/redis/RedisPoolTest.class
diff --git a/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst b/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst
new file mode 100644
index 0000000..c3f06a7
--- /dev/null
+++ b/target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst
@@ -0,0 +1,2 @@
+/home/zeekling/project/gitea/redis-test/src/test/java/com/zeekling/redis/RedisDistributedLockTest.java
+/home/zeekling/project/gitea/redis-test/src/test/java/com/zeekling/redis/RedisPoolTest.java