diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/OptimizeMojo.java b/eo-maven-plugin/src/main/java/org/eolang/maven/OptimizeMojo.java
index 59e7fc325d..dbf570a9b1 100644
--- a/eo-maven-plugin/src/main/java/org/eolang/maven/OptimizeMojo.java
+++ b/eo-maven-plugin/src/main/java/org/eolang/maven/OptimizeMojo.java
@@ -84,6 +84,7 @@ public final class OptimizeMojo extends SafeMojo {
 
     @Override
     public void exec() {
+        final long start = System.currentTimeMillis();
         final Collection<ForeignTojo> tojos = this.scopedTojos().withXmir();
         final Optimization optimization = this.optimization();
         final int total = new SumOf(
@@ -101,8 +102,9 @@ public void exec() {
         if (total > 0) {
             Logger.info(
                 this,
-                "Optimized %d out of %d XMIR program(s)", total,
-                tojos.size()
+                "Optimized %d out of %d XMIR program(s) in %[ms]s",
+                total, tojos.size(),
+                System.currentTimeMillis() - start
             );
         } else {
             Logger.debug(this, "No XMIR programs out of %d optimized", tojos.size());
diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/ProbeMojo.java b/eo-maven-plugin/src/main/java/org/eolang/maven/ProbeMojo.java
index dd81183e5f..8322565c92 100644
--- a/eo-maven-plugin/src/main/java/org/eolang/maven/ProbeMojo.java
+++ b/eo-maven-plugin/src/main/java/org/eolang/maven/ProbeMojo.java
@@ -103,6 +103,7 @@ public void exec() throws IOException {
                 "No programs were probed because eo.offline flag is TRUE"
             );
         } else {
+            final long start = System.currentTimeMillis();
             if (this.hash == null) {
                 this.hash = new ChCached(
                     new ChNarrow(
@@ -116,7 +117,7 @@ public void exec() throws IOException {
                 final Path src = tojo.shaken();
                 final Collection<ObjectName> objects = this.probes(src);
                 if (!objects.isEmpty()) {
-                    Logger.info(this, "Probing object(s): %s", objects);
+                    Logger.debug(this, "Probing object(s): %s", objects);
                 }
                 int count = 0;
                 for (final ObjectName object : objects) {
@@ -144,8 +145,10 @@ public void exec() throws IOException {
                 );
             } else {
                 Logger.info(
-                    this, "Found %d probe(s) in %d program(s): %s",
-                    probed.size(), tojos.size(), probed
+                    this, "Found %d probe(s) in %d program(s) in %[ms]s: %s",
+                    probed.size(), tojos.size(),
+                    System.currentTimeMillis() - start,
+                    probed
                 );
             }
         }
@@ -159,6 +162,7 @@ public void exec() throws IOException {
      * @throws FileNotFoundException If not found
      */
     private Collection<ObjectName> probes(final Path file) throws FileNotFoundException {
+        final long start = System.currentTimeMillis();
         final Collection<ObjectName> objects = new ListOf<>(
             new Mapped<>(
                 obj -> new OnCached(
@@ -183,8 +187,10 @@ private Collection<ObjectName> probes(final Path file) throws FileNotFoundExcept
         } else {
             Logger.debug(
                 this,
-                "Found %d probed objects in %[file]s: %s",
-                objects.size(), file, objects
+                "Found %d probed objects in %[file]s in %[ms]s: %s",
+                objects.size(), file,
+                System.currentTimeMillis() - start,
+                objects
             );
         }
         return objects;