diff --git a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/IStatementExecutor.java b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/IStatementExecutor.java
index e10046e..93f59908 100644
--- a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/IStatementExecutor.java
+++ b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/IStatementExecutor.java
@@ -106,7 +106,7 @@
     }
 
     class Stats implements Serializable {
-        private static final long serialVersionUID = 5885273238208454611L;
+        private static final long serialVersionUID = 5885273238208454612L;
 
         public enum ProfileType {
             COUNTS("counts"),
@@ -138,6 +138,7 @@
         private ProfileType profileType;
         private long totalWarningsCount;
         private long compileTime;
+        private double bufferCacheHitRatio;
 
         public long getCount() {
             return count;
@@ -204,6 +205,14 @@
         public long getCompileTime() {
             return compileTime;
         }
+
+        public void setBufferCacheHitRatio(double bufferCacheHitRatio) {
+            this.bufferCacheHitRatio = bufferCacheHitRatio;
+        }
+
+        public double getBufferCacheHitRatio() {
+            return bufferCacheHitRatio;
+        }
     }
 
     class Profile implements Serializable {
diff --git a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/ResultMetadata.java b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/ResultMetadata.java
index 60f4939..f47fce1 100644
--- a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/ResultMetadata.java
+++ b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/translator/ResultMetadata.java
@@ -27,13 +27,14 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 
 public class ResultMetadata implements IResultMetadata {
-    private static final long serialVersionUID = 1905367559307369034L;
+    private static final long serialVersionUID = 1905367559307369035L;
 
     private final SessionConfig.OutputFormat format;
     private long jobDuration;
     private long processedObjects;
-    private ObjectNode profile;
     private long diskIoCount;
+    private double bufferCacheHitRatio;
+    private ObjectNode profile;
     private Set<Warning> warnings;
     private long totalWarningsCount;
     private transient List<Object> outputTypes;
@@ -59,6 +60,14 @@
         this.jobDuration = jobDuration;
     }
 
+    public void setBufferCacheHitRatio(double bufferCacheHitRatio) {
+        this.bufferCacheHitRatio = bufferCacheHitRatio;
+    }
+
+    public double getBufferCacheHitRatio() {
+        return bufferCacheHitRatio;
+    }
+
     public void setWarnings(Set<Warning> warnings) {
         this.warnings = warnings;
     }
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/NCQueryServiceServlet.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/NCQueryServiceServlet.java
index cb5a3a5..a5e13c1 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/NCQueryServiceServlet.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/NCQueryServiceServlet.java
@@ -207,6 +207,7 @@
         stats.updateTotalWarningsCount(responseStats.getTotalWarningsCount());
         stats.setCompileTime(responseStats.getCompileTime());
         stats.setQueueWaitTime(responseStats.getQueueWaitTime());
+        stats.setBufferCacheHitRatio(responseStats.getBufferCacheHitRatio());
     }
 
     private static void updatePropertiesFromCC(IStatementExecutor.StatementProperties statementProperties,
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/QueryResultApiServlet.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/QueryResultApiServlet.java
index 680feeb..ad2a5b5 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/QueryResultApiServlet.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/QueryResultApiServlet.java
@@ -102,7 +102,8 @@
                 printer.printResults();
                 ResponseMetrics metrics = ResponseMetrics.of(System.nanoTime() - elapsedStart,
                         metadata.getJobDuration(), stats.getCount(), stats.getSize(), metadata.getProcessedObjects(), 0,
-                        metadata.getTotalWarningsCount(), stats.getCompileTime(), stats.getQueueWaitTime());
+                        metadata.getTotalWarningsCount(), stats.getCompileTime(), stats.getQueueWaitTime(),
+                        stats.getBufferCacheHitRatio());
                 printer.addFooterPrinter(new MetricsPrinter(metrics, HttpUtil.getPreferredCharset(request)));
                 if (metadata.getJobProfile() != null) {
                     printer.addFooterPrinter(new ProfilePrinter(metadata.getJobProfile()));
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/QueryServiceServlet.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/QueryServiceServlet.java
index 6678c52..f28579d 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/QueryServiceServlet.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/QueryServiceServlet.java
@@ -357,9 +357,10 @@
             // in case of ASYNC delivery, the status is printed by query translator
             responsePrinter.addFooterPrinter(new StatusPrinter(executionState.getResultStatus()));
         }
-        final ResponseMetrics metrics = ResponseMetrics.of(System.nanoTime() - elapsedStart, executionState.duration(),
-                stats.getCount(), stats.getSize(), stats.getProcessedObjects(), errorCount,
-                stats.getTotalWarningsCount(), stats.getCompileTime(), stats.getQueueWaitTime());
+        final ResponseMetrics metrics =
+                ResponseMetrics.of(System.nanoTime() - elapsedStart, executionState.duration(), stats.getCount(),
+                        stats.getSize(), stats.getProcessedObjects(), errorCount, stats.getTotalWarningsCount(),
+                        stats.getCompileTime(), stats.getQueueWaitTime(), stats.getBufferCacheHitRatio());
         responsePrinter.addFooterPrinter(new MetricsPrinter(metrics, resultCharset));
         if (isPrintingProfile(stats)) {
             responsePrinter.addFooterPrinter(new ProfilePrinter(stats.getJobProfile()));
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/JobResultCallback.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/JobResultCallback.java
index ebf169f..d1a1008 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/JobResultCallback.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/JobResultCallback.java
@@ -71,6 +71,8 @@
     private void aggregateJobStats(JobId jobId, ResultMetadata metadata) {
         long processedObjects = 0;
         long aggregateTotalWarningsCount = 0;
+        long pagesRead = 0;
+        long nonPagedReads = 0;
         Set<Warning> AggregateWarnings = new HashSet<>();
         IJobManager jobManager =
                 ((ClusterControllerService) appCtx.getServiceContext().getControllerService()).getJobManager();
@@ -83,6 +85,8 @@
                 final Collection<TaskProfile> jobletTasksProfile = jp.getTaskProfiles().values();
                 for (TaskProfile tp : jobletTasksProfile) {
                     processedObjects += tp.getStatsCollector().getAggregatedStats().getInputTupleCounter().get();
+                    pagesRead += tp.getStatsCollector().getAggregatedStats().getPageReads().get();
+                    nonPagedReads += tp.getStatsCollector().getAggregatedStats().coldReadCounter().get();
                     aggregateTotalWarningsCount += tp.getTotalWarningsCount();
                     Set<Warning> taskWarnings = tp.getWarnings();
                     if (AggregateWarnings.size() < maxWarnings && !taskWarnings.isEmpty()) {
@@ -96,6 +100,7 @@
             metadata.setQueueWaitTimeInNanos(run.getJobProfile().getQueueWaitTimeInNanos());
         }
         metadata.setProcessedObjects(processedObjects);
+        metadata.setBufferCacheHitRatio(pagesRead > 0 ? (pagesRead - nonPagedReads) / pagesRead : Double.NaN);
         metadata.setWarnings(AggregateWarnings);
         metadata.setTotalWarningsCount(aggregateTotalWarningsCount);
         if (run != null && run.getFlags() != null && run.getFlags().contains(JobFlag.PROFILE_RUNTIME)) {
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/ResponseMetrics.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/ResponseMetrics.java
index 08e7702..5f70937 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/ResponseMetrics.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/ResponseMetrics.java
@@ -30,12 +30,14 @@
     private long diskIoCount;
     private long compileTime;
     private long queueWaitTime;
+    private double bufferCacheHitRatio;
 
     private ResponseMetrics() {
     }
 
     public static ResponseMetrics of(long elapsedTime, long executionTime, long resultCount, long resultSize,
-            long processedObjects, long errorCount, long warnCount, long compileTime, long queueWaitTime) {
+            long processedObjects, long errorCount, long warnCount, long compileTime, long queueWaitTime,
+            double bufferCacheHitRatio) {
         ResponseMetrics metrics = new ResponseMetrics();
         metrics.elapsedTime = elapsedTime;
         metrics.executionTime = executionTime;
@@ -46,6 +48,7 @@
         metrics.warnCount = warnCount;
         metrics.compileTime = compileTime;
         metrics.queueWaitTime = queueWaitTime;
+        metrics.bufferCacheHitRatio = bufferCacheHitRatio;
         return metrics;
     }
 
@@ -84,4 +87,8 @@
     public long getQueueWaitTime() {
         return queueWaitTime;
     }
+
+    public double getBufferCacheHitRatio() {
+        return bufferCacheHitRatio;
+    }
 }
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/fields/MetricsPrinter.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/fields/MetricsPrinter.java
index e001d29..93fb6d4 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/fields/MetricsPrinter.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/result/fields/MetricsPrinter.java
@@ -38,7 +38,8 @@
         RESULT_SIZE("resultSize"),
         ERROR_COUNT("errorCount"),
         PROCESSED_OBJECTS_COUNT("processedObjects"),
-        WARNING_COUNT("warningCount");
+        WARNING_COUNT("warningCount"),
+        BUFFERCACHE_HIT_RATIO("bufferCacheHitRatio");
 
         private final String str;
 
@@ -84,9 +85,16 @@
         pw.print("\n\t");
         final boolean hasErrors = metrics.getErrorCount() > 0;
         final boolean hasWarnings = metrics.getWarnCount() > 0;
+        final boolean usedCache = !(Double.isNaN(metrics.getBufferCacheHitRatio()));
         ResultUtil.printField(pw, Metrics.PROCESSED_OBJECTS_COUNT.str(), metrics.getProcessedObjects(),
-                hasWarnings || hasErrors);
+                usedCache || hasWarnings || hasErrors);
         pw.print("\n");
+        if (usedCache) {
+            pw.print("\t");
+            String pctValue = String.format("%.2f%%", metrics.getBufferCacheHitRatio() * 100);
+            ResultUtil.printField(pw, Metrics.BUFFERCACHE_HIT_RATIO.str(), pctValue, hasWarnings || hasErrors);
+            pw.print("\n");
+        }
         if (hasWarnings) {
             pw.print("\t");
             ResultUtil.printField(pw, Metrics.WARNING_COUNT.str(), metrics.getWarnCount(), hasErrors);
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/translator/QueryTranslator.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/translator/QueryTranslator.java
index d8b5d84..8b635a2 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/translator/QueryTranslator.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/translator/QueryTranslator.java
@@ -4779,6 +4779,7 @@
                         .getResultMetadata(jobId, rsId);
         stats.setProcessedObjects(resultMetadata.getProcessedObjects());
         stats.setQueueWaitTime(resultMetadata.getQueueWaitTimeInNanos());
+        stats.setBufferCacheHitRatio(resultMetadata.getBufferCacheHitRatio());
         if (jobFlags.contains(JobFlag.PROFILE_RUNTIME)) {
             stats.setJobProfile(resultMetadata.getJobProfile());
             apiFramework.generateOptimizedLogicalPlanWithProfile(resultMetadata.getJobProfile());
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/api/cache-residency/cache-residency.001.post.http b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/api/cache-residency/cache-residency.001.post.http
new file mode 100644
index 0000000..0edc12a
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/api/cache-residency/cache-residency.001.post.http
@@ -0,0 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/query/service
+--body={"statement": "from [1, 2] as v select v;"}
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/api/cache-residency/cache-residency.002.post.http b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/api/cache-residency/cache-residency.002.post.http
new file mode 100644
index 0000000..9bf0936
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/api/cache-residency/cache-residency.002.post.http
@@ -0,0 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/query/service
+--body={"statement": "SELECT COUNT(*) FROM Metadata.`Dataset`"}
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/api/cache-residency/cache-residency.001.regexjson b/asterixdb/asterix-app/src/test/resources/runtimets/results/api/cache-residency/cache-residency.001.regexjson
new file mode 100644
index 0000000..173a9a5
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/api/cache-residency/cache-residency.001.regexjson
@@ -0,0 +1,19 @@
+{
+	"requestID": "R{.*}",
+	"signature": {
+		"*": "*"
+	},
+	"type": "application/x-adm",
+	"results": [ "{ \"v\": 1 }\n", "{ \"v\": 2 }\n" ],
+	"plans": "R{.*}",
+	"status": "success",
+	"metrics": {
+		"elapsedTime": "R{.*}",
+		"executionTime": "R{.*}",
+		"compileTime": "R{.*}",
+		"queueWaitTime": "R{.*}",
+		"resultCount": 2,
+		"resultSize": 32,
+		"processedObjects": 0
+	}
+}
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/api/cache-residency/cache-residency.002.regexjson b/asterixdb/asterix-app/src/test/resources/runtimets/results/api/cache-residency/cache-residency.002.regexjson
new file mode 100644
index 0000000..8f5cf76
--- /dev/null
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/api/cache-residency/cache-residency.002.regexjson
@@ -0,0 +1,20 @@
+{
+	"requestID": "R{.*}",
+	"signature": {
+		"*": "*"
+	},
+	"type": "application/x-adm",
+	"results": [ "{ \"$1\": 17 }\n" ],
+	"plans": "R{.*}",
+	"status": "success",
+	"metrics": {
+		"elapsedTime": "R{.*}",
+		"executionTime": "R{.*}",
+		"compileTime": "R{.*}",
+		"queueWaitTime": "R{.*}",
+		"resultCount": 1,
+		"resultSize": 18,
+		"processedObjects": 17,
+		"bufferCacheHitRatio": "100.00%"
+	}
+}
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/api/request-param-validation-400-BAD/request-param-validation-400-BAD.01.regexjson b/asterixdb/asterix-app/src/test/resources/runtimets/results/api/request-param-validation-400-BAD/request-param-validation-400-BAD.01.regexjson
index bd58b52..823515b 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/results/api/request-param-validation-400-BAD/request-param-validation-400-BAD.01.regexjson
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/api/request-param-validation-400-BAD/request-param-validation-400-BAD.01.regexjson
@@ -11,6 +11,7 @@
 		"resultCount": 0,
 		"resultSize": 0,
 		"processedObjects": 0,
+		"bufferCacheHitRatio": "0.00%",
 		"errorCount": 1
 	}
 }
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/warnings-limit/warnings-limit.06.regexadm b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/warnings-limit/warnings-limit.06.regexadm
index 7b689f6..39fdb09 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/warnings-limit/warnings-limit.06.regexadm
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/results/warnings/warnings-limit/warnings-limit.06.regexadm
@@ -17,6 +17,7 @@
 \s*\Q"resultCount": \E[0-9]+\Q,\E
 \s*\Q"resultSize": \E[0-9]+\Q,\E
 \s*\Q"processedObjects": \E[0-9]+\Q,\E
+\s*\Q"bufferCacheHitRatio": "\E[^"]+\Q",\E
 \s*\Q"warningCount": 2\E
 \s*\Q}\E
 \s*\Q}\E\s*
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
index 81f40c7..4bc82f4 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
@@ -101,6 +101,11 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="api">
+      <compilation-unit name="cache-residency">
+        <output-dir compare="Text">cache-residency</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="api">
       <compilation-unit name="request-param">
         <output-dir compare="Text">request-param</output-dir>
       </compilation-unit>
diff --git a/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-common/src/main/java/org/apache/hyracks/control/common/job/profiling/StatsCollector.java b/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-common/src/main/java/org/apache/hyracks/control/common/job/profiling/StatsCollector.java
index 76c8017..26c664a 100644
--- a/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-common/src/main/java/org/apache/hyracks/control/common/job/profiling/StatsCollector.java
+++ b/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-common/src/main/java/org/apache/hyracks/control/common/job/profiling/StatsCollector.java
@@ -31,7 +31,7 @@
 import org.apache.hyracks.api.job.profiling.OperatorStats;
 
 public class StatsCollector implements IStatsCollector {
-    private static final long serialVersionUID = 6858817639895434573L;
+    private static final long serialVersionUID = 6858817639895434574L;
 
     private final Map<String, IOperatorStats> operatorStatsMap = new LinkedHashMap<>();
 
@@ -66,6 +66,7 @@
             aggregatedStats.getInputTupleCounter().update(stats.getInputTupleCounter().get());
             aggregatedStats.getTimeCounter().update(stats.getTimeCounter().get());
             aggregatedStats.getPageReads().update(stats.getPageReads().get());
+            aggregatedStats.coldReadCounter().update(stats.coldReadCounter().get());
         }
         return aggregatedStats;
     }
diff --git a/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-nc/src/main/java/org/apache/hyracks/control/nc/Task.java b/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-nc/src/main/java/org/apache/hyracks/control/nc/Task.java
index 900ac7e..0c5c233 100644
--- a/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-nc/src/main/java/org/apache/hyracks/control/nc/Task.java
+++ b/hyracks-fullstack/hyracks/hyracks-control/hyracks-control-nc/src/main/java/org/apache/hyracks/control/nc/Task.java
@@ -515,9 +515,6 @@
 
     @Override
     public synchronized void subscribeThreadToStats(IThreadStatsCollector threadStatsCollector) {
-        if (!isRuntimeProfilingEnabled()) {
-            return;
-        }
         synchronized (threadStatsCollectors) {
             threadStatsCollectors.add(threadStatsCollector);
             final long threadId = Thread.currentThread().getId();
@@ -528,9 +525,6 @@
 
     @Override
     public synchronized void unsubscribeThreadFromStats() {
-        if (!isRuntimeProfilingEnabled()) {
-            return;
-        }
         synchronized (threadStatsCollectors) {
             threadStatsCollectors.forEach(IThreadStatsCollector::unsubscribe);
         }
@@ -572,8 +566,4 @@
         return "{ \"class\" : \"" + getClass().getSimpleName() + "\", \"node\" : \"" + ncs.getId() + "\" \"jobId\" : \""
                 + joblet.getJobId() + "\", \"taskId\" : \"" + taskAttemptId + "\" }";
     }
-
-    private boolean isRuntimeProfilingEnabled() {
-        return getJobFlags().contains(JobFlag.PROFILE_RUNTIME);
-    }
 }