update samples

camellia-samples/camellia-hot-key-samples/camellia-hot-key-sdk-samples/src/main/java/com/netease/nim/camellia/hot/key/sdk/samples/TestCache.java

@@ -0,0 +1,49 @@
+package com.netease.nim.camellia.hot.key.sdk.samples;
+
+import com.googlecode.concurrentlinkedhashmap.ConcurrentLinkedHashMap;
+
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * Created by caojiajun on 2023/7/18
+ */
+public class TestCache {
+
+    public static void main(String[] args) {
+        for (int i=0; i<100; i++) {
+            test1();
+            test2();
+        }
+    }
+
+    private static void test1() {
+        ConcurrentHashMap<String, String> map = new ConcurrentHashMap<>(256);
+        long start = System.currentTimeMillis();
+        for (int j=0; j<100; j++) {
+            for (int i = 0; i < 10000; i++) {
+                String string = UUID.randomUUID().toString();
+                map.put(string, string);
+                map.remove(string);
+            }
+            map.clear();
+        }
+        System.out.println(map.getClass().getSimpleName() + ",spend=" + (System.currentTimeMillis() - start));
+    }
+
+    private static void test2() {
+        ConcurrentLinkedHashMap<String, String> map = new ConcurrentLinkedHashMap.Builder<String, String>()
+                .initialCapacity(10000).maximumWeightedCapacity(10000).build();
+        long start = System.currentTimeMillis();
+        for (int j=0; j<100; j++) {
+            for (int i = 0; i < 10000; i++) {
+                String string = UUID.randomUUID().toString();
+                map.put(string, string);
+                map.remove(string);
+            }
+            map.clear();
+        }
+        System.out.println(map.getClass().getSimpleName() + ",spend=" + (System.currentTimeMillis() - start));
+    }
+}