diff --git a/storage/storage.go b/storage/storage.go
index 51f0b9c0..cd6af4c8 100644
--- a/storage/storage.go
+++ b/storage/storage.go
@@ -19,9 +19,11 @@ import "github.com/google/cadvisor/info"
 type StorageDriver interface {
 	AddStats(ref info.ContainerReference, stats *info.ContainerStats) error
 
-	// Read most recent stats. numStats indicates max number of stats
-	// returned. The returned stats must be consecutive observed stats. If
-	// numStats < 0, then return all stats stored in the storage.
+	// Read most recent stats. The returned stats must be reverse
+	// chronological ordered. i.e. most recent comes first. numStats
+	// indicates max number of stats returned. The returned stats must be
+	// consecutive observed stats. If numStats < 0, then return all stats
+	// stored in the storage.
 	RecentStats(containerName string, numStats int) ([]*info.ContainerStats, error)
 
 	// Read the specified percentiles of CPU and memory usage of the container.
diff --git a/storage/test/storagetests.go b/storage/test/storagetests.go
index 1b23fd24..0476791e 100644
--- a/storage/test/storagetests.go
+++ b/storage/test/storagetests.go
@@ -254,7 +254,6 @@ func StorageDriverTestRetrievePartialRecentStats(driver storage.StorageDriver, t
 	}
 }
 
-// The driver must be albe to hold more than 10 stats
 func StorageDriverTestRetrieveAllRecentStats(driver storage.StorageDriver, t *testing.T) {
 	defer driver.Close()
 	N := 100