Module Name: src
Committed By: thorpej
Date: Mon Jul 5 15:12:01 UTC 2021
Modified Files:
src/sys/arch/alpha/alpha: pmap.c
Log Message:
Instrument the number of calls to pmap_growkernel().
To generate a diff of this commit:
cvs rdiff -u -r1.295 -r1.296 src/sys/arch/alpha/alpha/pmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/alpha/alpha/pmap.c
diff -u src/sys/arch/alpha/alpha/pmap.c:1.295 src/sys/arch/alpha/alpha/pmap.c:1.296
--- src/sys/arch/alpha/alpha/pmap.c:1.295 Mon Jul 5 10:00:22 2021
+++ src/sys/arch/alpha/alpha/pmap.c Mon Jul 5 15:12:00 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.295 2021/07/05 10:00:22 thorpej Exp $ */
+/* $NetBSD: pmap.c,v 1.296 2021/07/05 15:12:00 thorpej Exp $ */
/*-
* Copyright (c) 1998, 1999, 2000, 2001, 2007, 2008, 2020
@@ -135,7 +135,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.295 2021/07/05 10:00:22 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.296 2021/07/05 15:12:00 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -258,6 +258,11 @@ int pmap_pv_lowat __read_mostly = PMAP_
static TAILQ_HEAD(, pmap) pmap_all_pmaps __cacheline_aligned;
/*
+ * Instrument the number of calls to pmap_growkernel().
+ */
+static struct evcnt pmap_growkernel_evcnt __read_mostly;
+
+/*
* The pools from which pmap structures and sub-structures are allocated.
*/
static struct pool_cache pmap_pmap_cache __read_mostly;
@@ -1548,6 +1553,10 @@ pmap_init(void)
/* Initialize TLB handling. */
pmap_tlb_init();
+ /* Instrument pmap_growkernel(). */
+ evcnt_attach_dynamic_nozero(&pmap_growkernel_evcnt, EVCNT_TYPE_MISC,
+ NULL, "pmap", "growkernel");
+
/*
* Set a low water mark on the pv_entry pool, so that we are
* more likely to have these around even in extreme memory
@@ -3593,6 +3602,8 @@ pmap_growkernel(vaddr_t maxkvaddr)
if (maxkvaddr <= virtual_end)
goto out; /* we are OK */
+ pmap_growkernel_evcnt.ev_count++;
+
va = virtual_end;
while (va < maxkvaddr) {
