Reduce initial writer buffer size to 4

caffeine/src/main/java/com/github/benmanes/caffeine/cache/BoundedLocalCache.java

@@ -133,7 +133,7 @@ abstract class BoundedLocalCache<K, V> extends BLCHeader.DrainStatusRef<K, V>
   /** The number of CPUs */
   static final int NCPU = Runtime.getRuntime().availableProcessors();
   /** The initial capacity of the write buffer. */
-  static final int WRITE_BUFFER_MIN = 16;
+  static final int WRITE_BUFFER_MIN = 4;
   /** The maximum capacity of the write buffer. */
   static final int WRITE_BUFFER_MAX = 128 * ceilingNextPowerOfTwo(NCPU);
   /** The number of attempts to insert into the write buffer before yielding. */

caffeine/src/test/java/com/github/benmanes/caffeine/cache/WriteBufferTest.java

@@ -32,11 +32,11 @@
  * @author [email protected] (Ben Manes)
  */
 public final class WriteBufferTest {
-  private static final int PRODUCE = 10_000;
   private static final int NUM_PRODUCERS = 10;
+  private static final int PRODUCE = 100;
 
   private static final int POPULATED_SIZE = 10;
-  private static final int FULL_SIZE = 16;
+  private static final int FULL_SIZE = 32;
 
   /* ---------------- Size -------------- */
 
@@ -157,26 +157,26 @@ public void manyProducers_oneConsumer(WriteBuffer<Integer> buffer) {
     assertThat(buffer.size(), is(0));
   }
 
-  /* ---------------- buffer providers -------------- */
+  /* ---------------- Providers -------------- */
 
   @DataProvider(name = "empty")
   public Object[][] providesEmpty() {
-    return new Object[][] {{ makePopulated(0, FULL_SIZE) }};
+    return new Object[][] {{ makePopulated(0) }};
   }
 
   @DataProvider(name = "populated")
   public Object[][] providesPopulated() {
-    return new Object[][] {{ makePopulated(POPULATED_SIZE, FULL_SIZE) }};
+    return new Object[][] {{ makePopulated(POPULATED_SIZE) }};
   }
 
   @DataProvider(name = "full")
   public Object[][] providesFull() {
-    return new Object[][] {{ makePopulated(FULL_SIZE, FULL_SIZE) }};
+    return new Object[][] {{ makePopulated(FULL_SIZE) }};
   }
 
-  static WriteBuffer<Integer> makePopulated(int size, int maximumSize) {
-    WriteBuffer<Integer> buffer = new WriteBuffer<>(4, maximumSize);
-    for (int i = 0; i < size; i++) {
+  static WriteBuffer<Integer> makePopulated(int items) {
+    WriteBuffer<Integer> buffer = new WriteBuffer<>(4, FULL_SIZE);
+    for (int i = 0; i < items; i++) {
       buffer.offer(i);
     }
     return buffer;

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.13-rc-1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.13-rc-2-bin.zip