Author: markj
Date: Sun Sep 20 16:49:48 2020
New Revision: 365928
URL: https://svnweb.freebsd.org/changeset/base/365928
Log:
MFC r365841:
Increase the default vm.max_user_wired value.
Modified:
stable/12/sys/vm/vm_pageout.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/vm/vm_pageout.c
==============================================================================
--- stable/12/sys/vm/vm_pageout.c Sun Sep 20 16:11:38 2020
(r365927)
+++ stable/12/sys/vm/vm_pageout.c Sun Sep 20 16:49:48 2020
(r365928)
@@ -2040,7 +2040,7 @@ vm_pageout_init_domain(int domain)
static void
vm_pageout_init(void)
{
- u_int freecount;
+ u_long freecount;
int i;
/*
@@ -2073,8 +2073,13 @@ vm_pageout_init(void)
if (vm_pageout_update_period == 0)
vm_pageout_update_period = 600;
+ /*
+ * Set the maximum number of user-wired virtual pages. Historically the
+ * main source of such pages was mlock(2) and mlockall(2). Hypervisors
+ * may also request user-wired memory.
+ */
if (vm_page_max_user_wired == 0)
- vm_page_max_user_wired = freecount / 3;
+ vm_page_max_user_wired = 4 * freecount / 5;
}
/*
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