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o Make the reservation of KVA space for kernel map entries a function

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of the KVA space's size in addition to the amount of physical memory
   and reduce it by a factor of two.

Under the old formula, our reservation amounted to one kernel map entry
per virtual page in the KVA space on a 4GB i386.
This commit is contained in:
Alan Cox 2002-07-03 19:16:37 +00:00
parent b78dcb87c0
commit 22a97b04de
1 changed files with 2 additions and 1 deletions
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3
sys/vm/vm_map.c
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@ -263,7 +263,8 @@ vmspace_alloc(min, max)
void
vm_init2(void)
{
uma_zone_set_obj(kmapentzone, &kmapentobj, cnt.v_page_count / 4);
uma_zone_set_obj(kmapentzone, &kmapentobj, min(cnt.v_page_count,
(VM_MAX_KERNEL_ADDRESS - KERNBASE) / PAGE_SIZE) / 8);
vmspace_zone = uma_zcreate("VMSPACE", sizeof(struct vmspace), NULL,
#ifdef INVARIANTS
vmspace_zdtor,