diff options
| -rw-r--r-- | sys/kern/vfs_subr.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c index 14c29232f8a7..cf537714322b 100644 --- a/sys/kern/vfs_subr.c +++ b/sys/kern/vfs_subr.c @@ -71,6 +71,7 @@ #include <vm/pmap.h> #include <vm/vm_map.h> #include <vm/vm_page.h> +#include <vm/vm_kern.h> #include <vm/uma.h> static MALLOC_DEFINE(M_NETADDR, "Export Host", "Export host address structure"); @@ -458,7 +459,15 @@ static void vntblinit(void *dummy __unused) { - desiredvnodes = maxproc + cnt.v_page_count / 4; + /* + * Desiredvnodes is a function of the physical memory size and + * the kernel's heap size. Specifically, desiredvnodes scales + * in proportion to the physical memory size until two fifths + * of the kernel's heap size is consumed by vnodes and vm + * objects. + */ + desiredvnodes = min(maxproc + cnt.v_page_count / 4, 2 * vm_kmem_size / + (5 * (sizeof(struct vm_object) + sizeof(struct vnode)))); minvnodes = desiredvnodes / 4; mtx_init(&mountlist_mtx, "mountlist", NULL, MTX_DEF); mtx_init(&mntvnode_mtx, "mntvnode", NULL, MTX_DEF); |