diff --git a/src/emu/ovnisort.c b/src/emu/ovnisort.c
index ddb793a..47f3ecb 100644
--- a/src/emu/ovnisort.c
+++ b/src/emu/ovnisort.c
@@ -59,7 +59,7 @@ enum operation_mode { SORT,
 
 static char *tracedir = NULL;
 static enum operation_mode operation_mode = SORT;
-static const size_t max_look_back = 100000;
+static const size_t max_look_back = 1000000;
 
 static void
 ring_reset(struct ring *r)
diff --git a/test/emu/ovni/sort-first-and-full-ring.c b/test/emu/ovni/sort-first-and-full-ring.c
index bbb883e..98e5769 100644
--- a/test/emu/ovni/sort-first-and-full-ring.c
+++ b/test/emu/ovni/sort-first-and-full-ring.c
@@ -49,14 +49,14 @@ main(void)
 	int64_t t0 = ovni_clock_now();
 
 	/* Leave some room to prevent clashes */
-	usleep(10000); /* 10000000 ns */
+	usleep(100000); /* 100000000 ns */
 
 	int64_t t1 = ovni_clock_now();
 
 	emit("OU[", t1);
 
 	/* Fill the ring buffer */
-	long n = 100000 + 10;
+	long n = 1000000 + 10;
 
 	err("using n=%ld events\n", n);