diff --git a/kmod/src/compact.c b/kmod/src/compact.c
index 82acc11b..fa83741e 100644
--- a/kmod/src/compact.c
+++ b/kmod/src/compact.c
@@ -430,7 +430,9 @@ static int compact_segments(struct super_block *sb,
 		if (ret)
 			break;
 
-		scoutfs_inc_counter(sb, compact_segment_written);
+		scoutfs_inc_counter(sb, compact_segment_writes);
+		scoutfs_add_counter(sb, compact_segment_write_bytes,
+				    scoutfs_seg_total_bytes(seg));
 	}
 
 	return ret;
diff --git a/kmod/src/counters.h b/kmod/src/counters.h
index 2933ae09..3cfea65f 100644
--- a/kmod/src/counters.h
+++ b/kmod/src/counters.h
@@ -17,12 +17,14 @@
 	EXPAND_COUNTER(seg_alloc)	\
 	EXPAND_COUNTER(seg_shrink)	\
 	EXPAND_COUNTER(seg_free)	\
-	EXPAND_COUNTER(trans_level0_seg_write) \
+	EXPAND_COUNTER(trans_level0_seg_writes)			\
+	EXPAND_COUNTER(trans_level0_seg_write_bytes)		\
 	EXPAND_COUNTER(manifest_compact_migrate) \
 	EXPAND_COUNTER(compact_operations) \
 	EXPAND_COUNTER(compact_segment_moved) \
 	EXPAND_COUNTER(compact_segment_read)	\
-	EXPAND_COUNTER(compact_segment_written)	\
+	EXPAND_COUNTER(compact_segment_writes)			\
+	EXPAND_COUNTER(compact_segment_write_bytes)		\
 	EXPAND_COUNTER(compact_sticky_upper)	\
 	EXPAND_COUNTER(compact_sticky_written)	\
 	EXPAND_COUNTER(data_readpage)		\
diff --git a/kmod/src/seg.c b/kmod/src/seg.c
index f17a8ebd..1e4ff372 100644
--- a/kmod/src/seg.c
+++ b/kmod/src/seg.c
@@ -557,6 +557,16 @@ int scoutfs_seg_next_off(struct scoutfs_segment *seg, int off)
 	return off;
 }
 
+/*
+ * Return the count of bytes of the segment actually used.
+ */
+u32 scoutfs_seg_total_bytes(struct scoutfs_segment *seg)
+{
+	struct scoutfs_segment_block *sblk = off_ptr(seg, 0);
+
+	return le32_to_cpu(sblk->total_bytes);
+}
+
 /*
  * Returns true if the given item population will fit in a single
  * segment.
diff --git a/kmod/src/seg.h b/kmod/src/seg.h
index 5a2909d4..6d2f09ad 100644
--- a/kmod/src/seg.h
+++ b/kmod/src/seg.h
@@ -25,6 +25,7 @@ int scoutfs_seg_wait(struct super_block *sb, struct scoutfs_segment *seg);
 int scoutfs_seg_find_off(struct scoutfs_segment *seg,
 			 struct scoutfs_key_buf *key);
 int scoutfs_seg_next_off(struct scoutfs_segment *seg, int off);
+u32 scoutfs_seg_total_bytes(struct scoutfs_segment *seg);
 int scoutfs_seg_item_ptrs(struct scoutfs_segment *seg, int off,
 			  struct scoutfs_key_buf *key, struct kvec *val,
 			  u8 *flags);
diff --git a/kmod/src/trans.c b/kmod/src/trans.c
index 32c4c751..31b4a768 100644
--- a/kmod/src/trans.c
+++ b/kmod/src/trans.c
@@ -142,7 +142,9 @@ void scoutfs_trans_write_func(struct work_struct *work)
 		if (ret)
 			goto out;
 
-		scoutfs_inc_counter(sb, trans_level0_seg_write);
+		scoutfs_inc_counter(sb, trans_level0_seg_writes);
+		scoutfs_add_counter(sb, trans_level0_seg_write_bytes,
+				    scoutfs_seg_total_bytes(seg));
 
 	} else if (sbi->trans_deadline_expired) {
 		/*