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Remove the v_cache_min and v_cache_max sysctls. They are unused and have

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no effect.

Reviewed by:	alc
Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
Mark Johnston 2015-09-11 03:00:20 +00:00
parent ad8d57a99d
commit d73ce4c698
6 changed files with 4 additions and 22 deletions
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10
lib/libc/gen/sysctl.3
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@ -28,7 +28,7 @@
.\" @(#)sysctl.3 8.4 (Berkeley) 5/9/95
.\" $FreeBSD$
.\"
.Dd May 17, 2013
.Dd September 10, 2015
.Dt SYSCTL 3
.Os
.Sh NAME
@ -736,8 +736,6 @@ privilege may change the value.
.It "VM_LOADAVG struct loadavg no"
.It "VM_TOTAL struct vmtotal no"
.It "VM_SWAPPING_ENABLED integer maybe"
.It "VM_V_CACHE_MAX integer yes"
.It "VM_V_CACHE_MIN integer yes"
.It "VM_V_FREE_MIN integer yes"
.It "VM_V_FREE_RESERVED integer yes"
.It "VM_V_FREE_TARGET integer yes"
@ -757,12 +755,6 @@ The returned data consists of a
1 if process swapping is enabled or 0 if disabled.
This variable is
permanently set to 0 if the kernel was built with swapping disabled.
.It Li VM_V_CACHE_MAX
Maximum desired size of the cache queue.
.It Li VM_V_CACHE_MIN
Minimum desired size of the cache queue.
If the cache queue size
falls very far below this value, the pageout daemon is awakened.
.It Li VM_V_FREE_MIN
Minimum amount of memory (cache memory plus free memory)
required to be available before a process waiting on memory will be

3
sys/sys/vmmeter.h
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@ -97,8 +97,6 @@ struct vmmeter {
u_int v_inactive_target; /* (c) pages desired inactive */
u_int v_inactive_count; /* (q) pages inactive */
u_int v_cache_count; /* (f) pages on cache queue */
u_int v_cache_min; /* (c) min pages desired on cache queue */
u_int v_cache_max; /* (c) max pages in cached obj (unused) */
u_int v_pageout_free_min; /* (c) min pages reserved for kernel */
u_int v_interrupt_free_min; /* (c) reserved pages for int code */
u_int v_free_severe; /* (c) severe page depletion point */
@ -113,6 +111,7 @@ struct vmmeter {
u_int v_vforkpages; /* (p) VM pages affected by vfork() */
u_int v_rforkpages; /* (p) VM pages affected by rfork() */
u_int v_kthreadpages; /* (p) VM pages affected by fork() by kernel */
u_int v_spare[2];
};
#ifdef _KERNEL

6
sys/vm/vm_meter.c
View File

@ -63,10 +63,6 @@ SYSCTL_UINT(_vm, VM_V_FREE_RESERVED, v_free_reserved,
CTLFLAG_RW, &vm_cnt.v_free_reserved, 0, "Pages reserved for deadlock");
SYSCTL_UINT(_vm, VM_V_INACTIVE_TARGET, v_inactive_target,
CTLFLAG_RW, &vm_cnt.v_inactive_target, 0, "Pages desired inactive");
SYSCTL_UINT(_vm, VM_V_CACHE_MIN, v_cache_min,
CTLFLAG_RW, &vm_cnt.v_cache_min, 0, "Min pages on cache queue");
SYSCTL_UINT(_vm, VM_V_CACHE_MAX, v_cache_max,
CTLFLAG_RW, &vm_cnt.v_cache_max, 0, "Max pages on cache queue");
SYSCTL_UINT(_vm, VM_V_PAGEOUT_FREE_MIN, v_pageout_free_min,
CTLFLAG_RW, &vm_cnt.v_pageout_free_min, 0, "Min pages reserved for kernel");
SYSCTL_UINT(_vm, OID_AUTO, v_free_severe,
@ -308,8 +304,6 @@ VM_STATS_VM(v_active_count, "Active pages");
VM_STATS_VM(v_inactive_target, "Desired inactive pages");
VM_STATS_VM(v_inactive_count, "Inactive pages");
VM_STATS_VM(v_cache_count, "Pages on cache queue");
VM_STATS_VM(v_cache_min, "Min pages on cache queue");
VM_STATS_VM(v_cache_max, "Max pages on cached queue");
VM_STATS_VM(v_pageout_free_min, "Min pages reserved for kernel");
VM_STATS_VM(v_interrupt_free_min, "Reserved pages for interrupt code");
VM_STATS_VM(v_forks, "Number of fork() calls");

1
sys/vm/vm_page.c
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@ -3290,7 +3290,6 @@ DB_SHOW_COMMAND(page, vm_page_print_page_info)
db_printf("vm_cnt.v_free_reserved: %d\n", vm_cnt.v_free_reserved);
db_printf("vm_cnt.v_free_min: %d\n", vm_cnt.v_free_min);
db_printf("vm_cnt.v_free_target: %d\n", vm_cnt.v_free_target);
db_printf("vm_cnt.v_cache_min: %d\n", vm_cnt.v_cache_min);
db_printf("vm_cnt.v_inactive_target: %d\n", vm_cnt.v_inactive_target);
}

4
sys/vm/vm_param.h
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@ -79,8 +79,8 @@
#define VM_V_FREE_TARGET 4 /* vm_cnt.v_free_target */
#define VM_V_FREE_RESERVED 5 /* vm_cnt.v_free_reserved */
#define VM_V_INACTIVE_TARGET 6 /* vm_cnt.v_inactive_target */
#define VM_V_CACHE_MIN 7 /* vm_cnt.v_cache_min */
#define VM_V_CACHE_MAX 8 /* vm_cnt.v_cache_max */
#define VM_OBSOLETE_7 7 /* unused, formerly v_cache_min */
#define VM_OBSOLETE_8 8 /* unused, formerly v_cache_max */
#define VM_V_PAGEOUT_FREE_MIN 9 /* vm_cnt.v_pageout_free_min */
#define VM_OBSOLETE_10 10 /* pageout algorithm */
#define VM_SWAPPING_ENABLED 11 /* swapping enabled */

2
usr.bin/vmstat/vmstat.c
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@ -556,8 +556,6 @@ fill_vmmeter(struct vmmeter *vmmp)
GET_VM_STATS(vm, v_inactive_target);
GET_VM_STATS(vm, v_inactive_count);
GET_VM_STATS(vm, v_cache_count);
GET_VM_STATS(vm, v_cache_min);
GET_VM_STATS(vm, v_cache_max);
GET_VM_STATS(vm, v_pageout_free_min);
GET_VM_STATS(vm, v_interrupt_free_min);
/*GET_VM_STATS(vm, v_free_severe);*/