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| author | alc <alc@FreeBSD.org> | 2002-07-03 19:16:37 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2002-07-03 19:16:37 +0000 |
| commit | 71b0d8951833492a73a3ef9c2d13d4995474f8b3 (patch) | |
| tree | ba44ad9430491c8d35901ce92ed68241c9612b23 /sys | |
| parent | 2e9ef09d73b03466f0aa2490ffbdf554d934fea2 (diff) | |
| download | FreeBSD-src-71b0d8951833492a73a3ef9c2d13d4995474f8b3.zip FreeBSD-src-71b0d8951833492a73a3ef9c2d13d4995474f8b3.tar.gz | |
o Make the reservation of KVA space for kernel map entries a function
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.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/vm/vm_map.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c index 437a0ce..6ba4233 100644 --- a/sys/vm/vm_map.c +++ b/sys/vm/vm_map.c @@ -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, |
