Page MenuHomeFreeBSD
Files F154412358

D23517.id.diff
No OneTemporary
Actions

D23517.id.diff
View Options

Index: sys/vm/vm_pageout.c
===================================================================
--- sys/vm/vm_pageout.c
+++ sys/vm/vm_pageout.c
@@ -1122,7 +1122,7 @@
if (vmd->vmd_laundry_request == VM_LAUNDRY_SHORTFALL &&
(!in_shortfall || shortfall_cycle == 0)) {
shortfall = vm_laundry_target(vmd) +
- vmd->vmd_pageout_deficit;
+ atomic_load_int(&vmd->vmd_shortage);
target = 0;
} else
shortfall = 0;
@@ -2063,14 +2063,17 @@
*/
shortage = pidctrl_daemon(&vmd->vmd_pid, vmd->vmd_free_count);
if (shortage > 0) {
+ atomic_store_int(&vmd->vmd_shortage, shortage);
ofree = vmd->vmd_free_count;
if (vm_pageout_lowmem() && vmd->vmd_free_count > ofree)
shortage -= min(vmd->vmd_free_count - ofree,
(u_int)shortage);
target_met = vm_pageout_scan_inactive(vmd, shortage,
&addl_shortage);
- } else
+ } else {
+ atomic_store_int(&vmd->vmd_shortage, 0);
addl_shortage = 0;
+ }
/*
* Scan the active queue. A positive value for shortage
Index: sys/vm/vm_pagequeue.h
===================================================================
--- sys/vm/vm_pagequeue.h
+++ sys/vm/vm_pagequeue.h
@@ -249,6 +249,7 @@
long vmd_segs; /* (c) bitmask of the segments */
u_int __aligned(CACHE_LINE_SIZE) vmd_free_count; /* (a,f) free page count */
u_int vmd_pageout_deficit; /* (a) Estimated number of pages deficit */
+ u_int vmd_shortage; /* (a) Current predicted shortage. */
uint8_t vmd_pad[CACHE_LINE_SIZE - (sizeof(u_int) * 2)];
/* Paging control variables, used within single threaded page daemon. */

File Metadata

Mime Type
text/plain
Expires
Wed, Apr 29, 9:53 AM (16 h, 27 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
32341119
Default Alt Text
D23517.id.diff (1 KB)

Event Timeline