Author: markj
Date: Wed Nov 8 19:55:17 2017
New Revision: 325561
URL: https://svnweb.freebsd.org/changeset/base/325561
Log:
Allow various page daemon parameters to be set from loader.conf.
MFC after: 1 week
Modified:
head/sys/vm/vm_pageout.c
Modified: head/sys/vm/vm_pageout.c
==============================================================================
--- head/sys/vm/vm_pageout.c Wed Nov 8 18:02:01 2017 (r325560)
+++ head/sys/vm/vm_pageout.c Wed Nov 8 19:55:17 2017 (r325561)
@@ -171,44 +171,44 @@ SYSCTL_INT(_vm, OID_AUTO, panic_on_oom,
"panic on out of memory instead of killing the largest process");
SYSCTL_INT(_vm, OID_AUTO, pageout_wakeup_thresh,
- CTLFLAG_RW, &vm_pageout_wakeup_thresh, 0,
+ CTLFLAG_RWTUN, &vm_pageout_wakeup_thresh, 0,
"free page threshold for waking up the pageout daemon");
SYSCTL_INT(_vm, OID_AUTO, pageout_update_period,
- CTLFLAG_RW, &vm_pageout_update_period, 0,
+ CTLFLAG_RWTUN, &vm_pageout_update_period, 0,
"Maximum active LRU update period");
-SYSCTL_INT(_vm, OID_AUTO, lowmem_period, CTLFLAG_RW, &lowmem_period, 0,
+SYSCTL_INT(_vm, OID_AUTO, lowmem_period, CTLFLAG_RWTUN, &lowmem_period, 0,
"Low memory callback period");
SYSCTL_INT(_vm, OID_AUTO, disable_swapspace_pageouts,
- CTLFLAG_RW, &disable_swap_pageouts, 0, "Disallow swapout of dirty
pages");
+ CTLFLAG_RWTUN, &disable_swap_pageouts, 0, "Disallow swapout of dirty
pages");
static int pageout_lock_miss;
SYSCTL_INT(_vm, OID_AUTO, pageout_lock_miss,
CTLFLAG_RD, &pageout_lock_miss, 0, "vget() lock misses during pageout");
SYSCTL_INT(_vm, OID_AUTO, pageout_oom_seq,
- CTLFLAG_RW, &vm_pageout_oom_seq, 0,
+ CTLFLAG_RWTUN, &vm_pageout_oom_seq, 0,
"back-to-back calls to oom detector to start OOM");
static int act_scan_laundry_weight = 3;
-SYSCTL_INT(_vm, OID_AUTO, act_scan_laundry_weight, CTLFLAG_RW,
+SYSCTL_INT(_vm, OID_AUTO, act_scan_laundry_weight, CTLFLAG_RWTUN,
&act_scan_laundry_weight, 0,
"weight given to clean vs. dirty pages in active queue scans");
static u_int vm_background_launder_target;
-SYSCTL_UINT(_vm, OID_AUTO, background_launder_target, CTLFLAG_RW,
+SYSCTL_UINT(_vm, OID_AUTO, background_launder_target, CTLFLAG_RWTUN,
&vm_background_launder_target, 0,
"background laundering target, in pages");
static u_int vm_background_launder_rate = 4096;
-SYSCTL_UINT(_vm, OID_AUTO, background_launder_rate, CTLFLAG_RW,
+SYSCTL_UINT(_vm, OID_AUTO, background_launder_rate, CTLFLAG_RWTUN,
&vm_background_launder_rate, 0,
"background laundering rate, in kilobytes per second");
static u_int vm_background_launder_max = 20 * 1024;
-SYSCTL_UINT(_vm, OID_AUTO, background_launder_max, CTLFLAG_RW,
+SYSCTL_UINT(_vm, OID_AUTO, background_launder_max, CTLFLAG_RWTUN,
&vm_background_launder_max, 0, "background laundering cap, in kilobytes");
int vm_pageout_page_count = 32;
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