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Put a cap on the auto-tuning of kern.maxvnodes.

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Cap value chosen by:	scottl
This commit is contained in:
obrien 2004-08-02 21:52:43 +00:00
parent 022dd0e2ed
commit 47f728c0bc
1 changed files with 8 additions and 0 deletions
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8
sys/kern/vfs_subr.c
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@ -257,6 +257,8 @@ int (*softdep_process_worklist_hook)(struct mount *);
/*
* Initialize the vnode management data structures.
*/
#define MAX_SAFE_MAXVNODES 100000
static void
vntblinit(void *dummy __unused)
{
@ -270,6 +272,12 @@ vntblinit(void *dummy __unused)
*/
desiredvnodes = min(maxproc + cnt.v_page_count / 4, 2 * vm_kmem_size /
(5 * (sizeof(struct vm_object) + sizeof(struct vnode))));
if (desiredvnodes > MAX_SAFE_MAXVNODES) {
if (bootverbose)
printf("Reducing kern.maxvnodes %d -> %d\n",
desiredvnodes, MAX_SAFE_MAXVNODES);
desiredvnodes = MAX_SAFE_MAXVNODES;
}
minvnodes = desiredvnodes / 4;
mtx_init(&mountlist_mtx, "mountlist", NULL, MTX_DEF);
mtx_init(&mntid_mtx, "mntid", NULL, MTX_DEF);