5.1ns/op.
diff --git a/reader.go b/reader.go
index 9653341..460e0cf 100644
--- a/reader.go
+++ b/reader.go
@@ -8,7 +8,7 @@
 	upstream Barrier
 	consumer Consumer
 	ready    bool
-} // TODO: padding???
+}
 
 func NewReader(read, written *Cursor, upstream Barrier, consumer Consumer) *Reader {
 	return &Reader{
diff --git a/writer.go b/writer.go
index aff2905..c10eaf7 100644
--- a/writer.go
+++ b/writer.go
@@ -6,8 +6,6 @@
 	capacity int64
 	previous int64
 	gate     int64
-	pad1     int64
-	pad2     int64
 }
 
 func NewWriter(written *Cursor, upstream Barrier, capacity int64) *Writer {