Include transfer size in the clat/slat measurements

It's useful to know the block size that matches the given latency, so
add that to the end.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/io_u.c b/io_u.c
index 8c2f33b..fc49bd3 100644
--- a/io_u.c
+++ b/io_u.c
@@ -917,11 +917,11 @@
 							&icd->time);
 
 			if (!td->o.disable_clat) {
-				add_clat_sample(td, idx, usec);
+				add_clat_sample(td, idx, usec, bytes);
 				io_u_mark_latency(td, usec);
 			}
 			if (!td->o.disable_bw)
-				add_bw_sample(td, idx, &icd->time);
+				add_bw_sample(td, idx, bytes, &icd->time);
 		}
 
 		if (td_write(td) && idx == DDIR_WRITE &&
@@ -1026,7 +1026,7 @@
 		unsigned long slat_time;
 
 		slat_time = utime_since(&io_u->start_time, &io_u->issue_time);
-		add_slat_sample(td, io_u->ddir, slat_time);
+		add_slat_sample(td, io_u->ddir, io_u->xfer_buflen, slat_time);
 	}
 }