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VM: expose secondary cache size

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This commit is contained in:
David van Moolenbroek 2010-09-14 21:22:56 +00:00
parent 7763fd67c7
commit 3eb65448a6
5 changed files with 28 additions and 8 deletions
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9
include/minix/vm.h
View File

@ -45,10 +45,11 @@ _PROTOTYPE( int vm_yield_block_get_block, (u64_t yieldid, u64_t getid,
#define VMPTYPE_SUNMAP 4 #define VMPTYPE_SUNMAP 4
struct vm_stats_info { struct vm_stats_info {
int vsi_pagesize; /* page size */ unsigned int vsi_pagesize; /* page size */
int vsi_total; /* total number of memory pages */ unsigned long vsi_total; /* total number of memory pages */
int vsi_free; /* number of free pages */ unsigned long vsi_free; /* number of free pages */
int vsi_largest; /* largest number of consecutive free pages */ unsigned long vsi_largest; /* largest number of consecutive free pages */
unsigned long vsi_cached; /* number of pages cached for file systems */
}; };
struct vm_usage_info { struct vm_usage_info {

5
servers/is/dmp_vm.c
View File

@ -77,10 +77,11 @@ PUBLIC void vm_dmp()
return; return;
} }
printf("Total %u kB, free %u kB, largest free area %u kB\n", printf("Total %u kB, free %u kB, largest free %u kB, cached %u kB\n",
vsi.vsi_total * (vsi.vsi_pagesize / 1024), vsi.vsi_total * (vsi.vsi_pagesize / 1024),
vsi.vsi_free * (vsi.vsi_pagesize / 1024), vsi.vsi_free * (vsi.vsi_pagesize / 1024),
vsi.vsi_largest * (vsi.vsi_pagesize / 1024)); vsi.vsi_largest * (vsi.vsi_pagesize / 1024),
vsi.vsi_cached * (vsi.vsi_pagesize / 1024));
n++; n++;
printf("\n"); printf("\n");
n++; n++;

1
servers/vm/proto.h
View File

@ -168,6 +168,7 @@ _PROTOTYPE(int map_get_ref, (struct vmproc *vmp, vir_bytes addr, u8_t *cnt));
_PROTOTYPE(void pb_unreferenced, (struct vir_region *region, _PROTOTYPE(void pb_unreferenced, (struct vir_region *region,
struct phys_region *pr)); struct phys_region *pr));
_PROTOTYPE(void get_stats_info, (struct vm_stats_info *vsi));
_PROTOTYPE(void get_usage_info, (struct vmproc *vmp, _PROTOTYPE(void get_usage_info, (struct vmproc *vmp,
struct vm_usage_info *vui)); struct vm_usage_info *vui));
_PROTOTYPE(int get_region_info, (struct vmproc *vmp, _PROTOTYPE(int get_region_info, (struct vmproc *vmp,

13
servers/vm/region.c
View File

@ -1825,6 +1825,19 @@ PUBLIC int map_get_ref(struct vmproc *vmp, vir_bytes addr, u8_t *cnt)
return OK; return OK;
} }
/*========================================================================*
* get_stats_info *
*========================================================================*/
PUBLIC void get_stats_info(struct vm_stats_info *vsi)
{
yielded_t *yb;
vsi->vsi_cached = 0L;
for(yb = lru_youngest; yb; yb = yb->older)
vsi->vsi_cached += yb->len / VM_PAGE_SIZE;
}
/*========================================================================* /*========================================================================*
* get_usage_info * * get_usage_info *
*========================================================================*/ *========================================================================*/

8
servers/vm/utility.c
View File

@ -173,7 +173,7 @@ PUBLIC int do_info(message *m)
static struct vm_region_info vri[MAX_VRI_COUNT]; static struct vm_region_info vri[MAX_VRI_COUNT];
struct vmproc *vmp; struct vmproc *vmp;
vir_bytes addr, size, next, ptr; vir_bytes addr, size, next, ptr;
int r, pr, dummy, count; int r, pr, dummy, count, free_pages, largest_contig;
if (vm_isokendpt(m->m_source, &pr) != OK) if (vm_isokendpt(m->m_source, &pr) != OK)
return EINVAL; return EINVAL;
@ -185,7 +185,11 @@ PUBLIC int do_info(message *m)
case VMIW_STATS: case VMIW_STATS:
vsi.vsi_pagesize = VM_PAGE_SIZE; vsi.vsi_pagesize = VM_PAGE_SIZE;
vsi.vsi_total = total_pages; vsi.vsi_total = total_pages;
memstats(&dummy, &vsi.vsi_free, &vsi.vsi_largest); memstats(&dummy, &free_pages, &largest_contig);
vsi.vsi_free = free_pages;
vsi.vsi_largest = largest_contig;
get_stats_info(&vsi);
addr = (vir_bytes) &vsi; addr = (vir_bytes) &vsi;
size = sizeof(vsi); size = sizeof(vsi);