Baseline

kittylyst · kittylyst · commit dc1f1f3972b5 · 2018-11-22T20:04:16.000Z
diff --git a/src/main/java/optjava/Caching.java b/src/main/java/optjava/Caching.java
@@ -2,7 +2,7 @@
 
 // tag::CACHE_EFFECT[]
 public class Caching {
-    private final int ARR_SIZE = 10 * 1024 * 1024;
+    private final int ARR_SIZE = 2 * 1024 * 1024;
     private final int[] testData = new int[ARR_SIZE];
 
     private void run() {
diff --git a/src/main/java/optjava/StringHash.java b/src/main/java/optjava/StringHash.java
@@ -8,21 +8,22 @@ public static void main(String[] args) {
     }
 
     void run() {
-        for (int i=1; i<2_000; i++) {
+        for (int i = 1; i < 2_000; i++) {
             timeHashing(i, 'x');
         }
     }
 
 
     void timeHashing(int length, char c) {
         final StringBuilder sb = new StringBuilder();
-        for (int j = 0; j < length  * 1_000_000; j++) {
+        for (int j = 0; j < length * 1_000_000; j++) {
             sb.append(c);
         }
         final String s = sb.toString();
         final long now = System.nanoTime();
         final int hash = s.hashCode();
         final long duration = System.nanoTime() - now;
-        System.out.println("Length: "+ length +" took: "+ duration +" ns");
+//        System.out.println("Length: " + length + " took: " + duration + " ns");
+        System.out.println(length + ","+ duration);
     }
 }
diff --git a/src/main/java/optjava/counters/AtomicCounter.java b/src/main/java/optjava/counters/AtomicCounter.java
@@ -3,7 +3,7 @@
 import sun.misc.Unsafe;
 import java.lang.reflect.Field;
 
-public final class AtomicCounter {
+public final class AtomicCounter implements Counter {
 
     private static final Unsafe unsafe; // = Unsafe.getUnsafe();
     private static final long valueOffset;
diff --git a/src/main/java/optjava/counters/CounterMain.java b/src/main/java/optjava/counters/CounterMain.java
@@ -8,7 +8,7 @@ public class CounterMain {
     public static final int REPS = 10_000_000;
 
     public static void main(String[] args) throws InterruptedException {
-        final Counter c = new UnprotectedCounter(); // init to 0
+        final Counter c = new AtomicCounter(); // init to 0
 
         Runnable r = () -> {
             for (int i = 0; i < REPS; i++) {

Original file line number	Diff line number	Diff line change
`@@ -8,21 +8,22 @@ public static void main(String[] args) {`
`8`	`8`	`}`
`9`	`9`
`10`	`10`	`void run() {`
`11`		`- for (int i=1; i<2_000; i++) {`
	`11`	`+ for (int i = 1; i < 2_000; i++) {`
`12`	`12`	`timeHashing(i, 'x');`
`13`	`13`	`}`
`14`	`14`	`}`
`15`	`15`
`16`	`16`
`17`	`17`	`void timeHashing(int length, char c) {`
`18`	`18`	`final StringBuilder sb = new StringBuilder();`
`19`		`- for (int j = 0; j < length * 1_000_000; j++) {`
	`19`	`+ for (int j = 0; j < length * 1_000_000; j++) {`
`20`	`20`	`sb.append(c);`
`21`	`21`	`}`
`22`	`22`	`final String s = sb.toString();`
`23`	`23`	`final long now = System.nanoTime();`
`24`	`24`	`final int hash = s.hashCode();`
`25`	`25`	`final long duration = System.nanoTime() - now;`
`26`		`- System.out.println("Length: "+ length +" took: "+ duration +" ns");`
	`26`	`+// System.out.println("Length: " + length + " took: " + duration + " ns");`
	`27`	`+ System.out.println(length + ","+ duration);`
`27`	`28`	`}`
`28`	`29`	`}`