diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c
index 4a9517b9522d..f04615489bac 100644
--- a/sys/kern/kern_exit.c
+++ b/sys/kern/kern_exit.c
@@ -184,11 +184,6 @@ exit1(struct thread *td, int rv)
 		mtx_unlock(&ppeers_lock);
 	}
 
-#ifdef PGINPROF
-	mtx_lock(&Giant);
-	vmsizmon();
-	mtx_unlock(&Giant);
-#endif
 	PROC_LOCK(p);
 	_STOPEVENT(p, S_EXIT, rv);
 	wakeup(&p->p_stype);	/* Wakeup anyone in procfs' PIOCWAIT */
diff --git a/sys/sys/vmmeter.h b/sys/sys/vmmeter.h
index fc2966526b36..793f32d37738 100644
--- a/sys/sys/vmmeter.h
+++ b/sys/sys/vmmeter.h
@@ -207,42 +207,4 @@ struct vmtotal {
 	int32_t	t_free;		/* free memory pages */
 };
 
-/*
- * Optional instrumentation.
- */
-#ifdef PGINPROF
-
-#define	NDMON	128
-#define	NSMON	128
-
-#define	DRES	20
-#define	SRES	5
-
-#define	PMONMIN	20
-#define	PRES	50
-#define	NPMON	64
-
-#define	RMONMIN	130
-#define	RRES	5
-#define	NRMON	64
-
-/* data and stack size distribution counters */
-u_int	dmon[NDMON+1];
-u_int	smon[NSMON+1];
-
-/* page in time distribution counters */
-u_int	pmon[NPMON+2];
-
-/* reclaim time distribution counters */
-u_int	rmon[NRMON+2];
-
-int	pmonmin;
-int	pres;
-int	rmonmin;
-int	rres;
-
-u_int rectime;		/* accumulator for reclaim times */
-u_int pgintime;		/* accumulator for page in times */
-#endif
-
 #endif