X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=tests%2Forg.simantics.db.tests%2Fsrc%2Forg%2Fsimantics%2Fdb%2Ftests%2Fperformance%2Fjava%2FMapTest.java;fp=tests%2Forg.simantics.db.tests%2Fsrc%2Forg%2Fsimantics%2Fdb%2Ftests%2Fperformance%2Fjava%2FMapTest.java;h=a03b9acb0cd98903bcecb84bb7d6152bfe96073e;hb=67fd62f9c742337ec80eef658192db198a0efaac;hp=0000000000000000000000000000000000000000;hpb=cde82ba81327d5515fdca362f7f4c70f5103ae80;p=simantics%2Fplatform.git

diff --git a/tests/org.simantics.db.tests/src/org/simantics/db/tests/performance/java/MapTest.java b/tests/org.simantics.db.tests/src/org/simantics/db/tests/performance/java/MapTest.java
new file mode 100644
index 000000000..a03b9acb0
--- /dev/null
+++ b/tests/org.simantics.db.tests/src/org/simantics/db/tests/performance/java/MapTest.java
@@ -0,0 +1,67 @@
+package org.simantics.db.tests.performance.java;
+
+import gnu.trove.map.hash.TIntByteHashMap;
+
+import java.util.TreeMap;
+
+import org.simantics.db.testing.base.TestCommonPerf;
+
+
+public class MapTest extends TestCommonPerf {
+
+	public void a(TIntByteHashMap map, int i) {
+		byte test = (byte)i;
+		byte value = map.get(test);
+		if(value == 0) {
+			map.put(test, value);
+		}
+	}
+	
+	public void b(TreeMap<Integer, Byte> map2, int i) {
+		Byte value = map2.get(i);
+		if(value == null) {
+			map2.put(i, value);
+		}
+	}
+
+	public void test() throws Exception {
+
+		TIntByteHashMap map = new TIntByteHashMap();
+		
+		long start = System.nanoTime();
+		for(int i=0;i<12000000;i++) {
+			byte test = (byte)i;
+			byte value = map.get(test);
+			if(value == 0) {
+				map.put(test, value);
+			}
+		}
+		long duration = System.nanoTime() - start;
+		System.err.println("took " + 1e-9*duration);
+
+		TIntByteHashMap map2 = new TIntByteHashMap();
+		long start2 = System.nanoTime();
+		for(int i=0;i<10000000;i++) a(map2, i);
+		long duration2 = System.nanoTime() - start2;
+		System.err.println("took " + 1e-9*duration2);
+		
+		TreeMap<Integer, Byte> map3 = new TreeMap<Integer, Byte>();
+		long start3 = System.nanoTime();
+		for(int i=0;i<10000000;i++) {
+			Byte value = map3.get(i);
+			if(value == null) {
+				map3.put(i, value);
+			}
+		}
+		long duration3 = System.nanoTime() - start3;
+		System.err.println("took " + 1e-9*duration3);
+
+		TreeMap<Integer, Byte> map4 = new TreeMap<Integer, Byte>();
+		long start4 = System.nanoTime();
+		for(int i=0;i<10000000;i++) b(map4, i);
+		long duration4 = System.nanoTime() - start4;
+		System.err.println("took " + 1e-9*duration4);
+		
+	}
+
+}