diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/LogMonitor.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/LogMonitor.kt
index d0c14423d..3967cc373 100644
--- a/amethyst/src/main/java/com/vitorpamplona/amethyst/LogMonitor.kt
+++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/LogMonitor.kt
@@ -58,6 +58,11 @@ class LogMonitor : Printer {
             mStackSampler.startDump()
         } else {
             val endTime = System.currentTimeMillis()
+
+            if (x.indexOf("com.vitorpamplona.amethyst") > 0) {
+                Log.d("block-canary", "Looper ${endTime - mStartTimestamp}ms for $x")
+            }
+
             mPrintingStarted = false
             //
             if (isBlock(endTime)) {