diff --git a/lucene/classification/src/test/org/apache/lucene/classification/BM25NBClassifierTest.java b/lucene/classification/src/test/org/apache/lucene/classification/BM25NBClassifierTest.java
index 724f2a66e3c..237c53fd643 100644
--- a/lucene/classification/src/test/org/apache/lucene/classification/BM25NBClassifierTest.java
+++ b/lucene/classification/src/test/org/apache/lucene/classification/BM25NBClassifierTest.java
@@ -96,22 +96,15 @@ public class BM25NBClassifierTest extends ClassificationTestBase<BytesRef> {
     MockAnalyzer analyzer = new MockAnalyzer(random());
     LeafReader leafReader = getRandomIndex(analyzer, 100);
     try {
-      long trainStart = System.currentTimeMillis();
       BM25NBClassifier classifier = new BM25NBClassifier(leafReader,
           analyzer, null, categoryFieldName, textFieldName);
-      long trainEnd = System.currentTimeMillis();
-      long trainTime = trainEnd - trainStart;
-      assertTrue("training took more than 10s: " + trainTime / 1000 + "s", trainTime < 10000);
 
-      long evaluationStart = System.currentTimeMillis();
       ConfusionMatrixGenerator.ConfusionMatrix confusionMatrix = ConfusionMatrixGenerator.getConfusionMatrix(leafReader,
           classifier, categoryFieldName, textFieldName, -1);
       assertNotNull(confusionMatrix);
-      long evaluationEnd = System.currentTimeMillis();
-      long evaluationTime = evaluationEnd - evaluationStart;
-      assertTrue("evaluation took more than 2m: " + evaluationTime / 1000 + "s", evaluationTime < 120000);
+
       double avgClassificationTime = confusionMatrix.getAvgClassificationTime();
-      assertTrue("avg classification time: " + avgClassificationTime, 5000 > avgClassificationTime);
+      assertTrue(avgClassificationTime >= 0);
 
       double f1 = confusionMatrix.getF1Measure();
       assertTrue(f1 >= 0d);
diff --git a/lucene/classification/src/test/org/apache/lucene/classification/BooleanPerceptronClassifierTest.java b/lucene/classification/src/test/org/apache/lucene/classification/BooleanPerceptronClassifierTest.java
index 5ecf9c67465..9f22e6fc5c0 100644
--- a/lucene/classification/src/test/org/apache/lucene/classification/BooleanPerceptronClassifierTest.java
+++ b/lucene/classification/src/test/org/apache/lucene/classification/BooleanPerceptronClassifierTest.java
@@ -86,21 +86,14 @@ public class BooleanPerceptronClassifierTest extends ClassificationTestBase<Bool
     MockAnalyzer analyzer = new MockAnalyzer(random());
     LeafReader leafReader = getRandomIndex(analyzer, 100);
     try {
-      long trainStart = System.currentTimeMillis();
       BooleanPerceptronClassifier classifier = new BooleanPerceptronClassifier(leafReader, analyzer, null, 1, null, booleanFieldName, textFieldName);
-      long trainEnd = System.currentTimeMillis();
-      long trainTime = trainEnd - trainStart;
-      assertTrue("training took more than 10s: " + trainTime / 1000 + "s", trainTime < 10000);
 
-      long evaluationStart = System.currentTimeMillis();
       ConfusionMatrixGenerator.ConfusionMatrix confusionMatrix = ConfusionMatrixGenerator.getConfusionMatrix(leafReader,
           classifier, booleanFieldName, textFieldName, -1);
       assertNotNull(confusionMatrix);
-      long evaluationEnd = System.currentTimeMillis();
-      long evaluationTime = evaluationEnd - evaluationStart;
-      assertTrue("evaluation took more than 1m: " + evaluationTime / 1000 + "s", evaluationTime < 60000);
+
       double avgClassificationTime = confusionMatrix.getAvgClassificationTime();
-      assertTrue(5000 > avgClassificationTime);
+      assertTrue(avgClassificationTime >= 0);
 
       double f1 = confusionMatrix.getF1Measure();
       assertTrue(f1 >= 0d);
diff --git a/lucene/classification/src/test/org/apache/lucene/classification/CachingNaiveBayesClassifierTest.java b/lucene/classification/src/test/org/apache/lucene/classification/CachingNaiveBayesClassifierTest.java
index ccdb207659a..00fa4fe3505 100644
--- a/lucene/classification/src/test/org/apache/lucene/classification/CachingNaiveBayesClassifierTest.java
+++ b/lucene/classification/src/test/org/apache/lucene/classification/CachingNaiveBayesClassifierTest.java
@@ -95,22 +95,15 @@ public class CachingNaiveBayesClassifierTest extends ClassificationTestBase<Byte
     MockAnalyzer analyzer = new MockAnalyzer(random());
     LeafReader leafReader = getRandomIndex(analyzer, 100);
     try {
-      long trainStart = System.currentTimeMillis();
       CachingNaiveBayesClassifier simpleNaiveBayesClassifier = new CachingNaiveBayesClassifier(leafReader,
           analyzer, null, categoryFieldName, textFieldName);
-      long trainEnd = System.currentTimeMillis();
-      long trainTime = trainEnd - trainStart;
-      assertTrue("training took more than 10s: " + trainTime / 1000 + "s", trainTime < 10000);
 
-      long evaluationStart = System.currentTimeMillis();
       ConfusionMatrixGenerator.ConfusionMatrix confusionMatrix = ConfusionMatrixGenerator.getConfusionMatrix(leafReader,
           simpleNaiveBayesClassifier, categoryFieldName, textFieldName, -1);
       assertNotNull(confusionMatrix);
-      long evaluationEnd = System.currentTimeMillis();
-      long evaluationTime = evaluationEnd - evaluationStart;
-      assertTrue("evaluation took more than 1m: " + evaluationTime / 1000 + "s", evaluationTime < 60000);
+
       double avgClassificationTime = confusionMatrix.getAvgClassificationTime();
-      assertTrue(5000 > avgClassificationTime);
+      assertTrue(avgClassificationTime >= 0);
       double accuracy = confusionMatrix.getAccuracy();
       assertTrue(accuracy >= 0d);
       assertTrue(accuracy <= 1d);
diff --git a/lucene/classification/src/test/org/apache/lucene/classification/KNearestFuzzyClassifierTest.java b/lucene/classification/src/test/org/apache/lucene/classification/KNearestFuzzyClassifierTest.java
index 5c5122a1961..91cf943894e 100644
--- a/lucene/classification/src/test/org/apache/lucene/classification/KNearestFuzzyClassifierTest.java
+++ b/lucene/classification/src/test/org/apache/lucene/classification/KNearestFuzzyClassifierTest.java
@@ -69,21 +69,15 @@ public class KNearestFuzzyClassifierTest extends ClassificationTestBase<BytesRef
     MockAnalyzer analyzer = new MockAnalyzer(random());
     LeafReader leafReader = getRandomIndex(analyzer, 100);
     try {
-      long trainStart = System.currentTimeMillis();
       Classifier<BytesRef> classifier = new KNearestFuzzyClassifier(leafReader, null, analyzer, null, 3, categoryFieldName, textFieldName);
-      long trainEnd = System.currentTimeMillis();
-      long trainTime = trainEnd - trainStart;
-      assertTrue("training took more than 10s: " + trainTime / 1000 + "s", trainTime < 10000);
 
-      long evaluationStart = System.currentTimeMillis();
       ConfusionMatrixGenerator.ConfusionMatrix confusionMatrix = ConfusionMatrixGenerator.getConfusionMatrix(leafReader,
           classifier, categoryFieldName, textFieldName, -1);
       assertNotNull(confusionMatrix);
-      long evaluationEnd = System.currentTimeMillis();
-      long evaluationTime = evaluationEnd - evaluationStart;
-      assertTrue("evaluation took more than 2m: " + evaluationTime / 1000 + "s", evaluationTime < 120000);
+
       double avgClassificationTime = confusionMatrix.getAvgClassificationTime();
-      assertTrue(5000 > avgClassificationTime);
+      assertTrue(avgClassificationTime >= 0);
+
       double accuracy = confusionMatrix.getAccuracy();
       assertTrue(accuracy >= 0d);
       assertTrue(accuracy <= 1d);
diff --git a/lucene/classification/src/test/org/apache/lucene/classification/KNearestNeighborClassifierTest.java b/lucene/classification/src/test/org/apache/lucene/classification/KNearestNeighborClassifierTest.java
index 5e3ce7bfff3..ab7318531e9 100644
--- a/lucene/classification/src/test/org/apache/lucene/classification/KNearestNeighborClassifierTest.java
+++ b/lucene/classification/src/test/org/apache/lucene/classification/KNearestNeighborClassifierTest.java
@@ -125,22 +125,16 @@ public class KNearestNeighborClassifierTest extends ClassificationTestBase<Bytes
     MockAnalyzer analyzer = new MockAnalyzer(random());
     LeafReader leafReader = getRandomIndex(analyzer, 100);
     try {
-      long trainStart = System.currentTimeMillis();
       KNearestNeighborClassifier kNearestNeighborClassifier = new KNearestNeighborClassifier(leafReader, null,
           analyzer, null, 1, 1, 1, categoryFieldName, textFieldName);
-      long trainEnd = System.currentTimeMillis();
-      long trainTime = trainEnd - trainStart;
-      assertTrue("training took more than 10s: " + trainTime / 1000 + "s", trainTime < 10000);
 
-      long evaluationStart = System.currentTimeMillis();
       ConfusionMatrixGenerator.ConfusionMatrix confusionMatrix = ConfusionMatrixGenerator.getConfusionMatrix(leafReader,
           kNearestNeighborClassifier, categoryFieldName, textFieldName, -1);
       assertNotNull(confusionMatrix);
-      long evaluationEnd = System.currentTimeMillis();
-      long evaluationTime = evaluationEnd - evaluationStart;
-      assertTrue("evaluation took more than 2m: " + evaluationTime / 1000 + "s", evaluationTime < 120000);
+
       double avgClassificationTime = confusionMatrix.getAvgClassificationTime();
-      assertTrue(5000 > avgClassificationTime);
+      assertTrue(avgClassificationTime >= 0);
+
       double accuracy = confusionMatrix.getAccuracy();
       assertTrue(accuracy >= 0d);
       assertTrue(accuracy <= 1d);
diff --git a/lucene/classification/src/test/org/apache/lucene/classification/SimpleNaiveBayesClassifierTest.java b/lucene/classification/src/test/org/apache/lucene/classification/SimpleNaiveBayesClassifierTest.java
index 0e05d4fe8b9..be1eab1efa0 100644
--- a/lucene/classification/src/test/org/apache/lucene/classification/SimpleNaiveBayesClassifierTest.java
+++ b/lucene/classification/src/test/org/apache/lucene/classification/SimpleNaiveBayesClassifierTest.java
@@ -98,22 +98,15 @@ public class SimpleNaiveBayesClassifierTest extends ClassificationTestBase<Bytes
     MockAnalyzer analyzer = new MockAnalyzer(random());
     LeafReader leafReader = getRandomIndex(analyzer, 100);
     try {
-      long trainStart = System.currentTimeMillis();
       SimpleNaiveBayesClassifier simpleNaiveBayesClassifier = new SimpleNaiveBayesClassifier(leafReader,
           analyzer, null, categoryFieldName, textFieldName);
-      long trainEnd = System.currentTimeMillis();
-      long trainTime = trainEnd - trainStart;
-      assertTrue("training took more than 10s: " + trainTime / 1000 + "s", trainTime < 10000);
 
-      long evaluationStart = System.currentTimeMillis();
       ConfusionMatrixGenerator.ConfusionMatrix confusionMatrix = ConfusionMatrixGenerator.getConfusionMatrix(leafReader,
           simpleNaiveBayesClassifier, categoryFieldName, textFieldName, -1);
       assertNotNull(confusionMatrix);
-      long evaluationEnd = System.currentTimeMillis();
-      long evaluationTime = evaluationEnd - evaluationStart;
-      assertTrue("evaluation took more than 2m: " + evaluationTime / 1000 + "s", evaluationTime < 120000);
+
       double avgClassificationTime = confusionMatrix.getAvgClassificationTime();
-      assertTrue("avg classification time: " + avgClassificationTime, 5000 > avgClassificationTime);
+      assertTrue(avgClassificationTime >= 0);
 
       double f1 = confusionMatrix.getF1Measure();
       assertTrue(f1 >= 0d);