svn commit: r249309 - head/sys/vm
Gleb Smirnoff
glebius at FreeBSD.org
Tue Apr 9 15:15:53 UTC 2013
Author: glebius
Date: Tue Apr 9 15:15:52 2013
New Revision: 249309
URL: http://svnweb.freebsd.org/changeset/base/249309
Log:
Since now we support 256 items per slab, we need more bits
for us_freecount.
This grows uma_slab_head on 32-bit arches, but growth isn't
significant. Taking kmem zones as example, only the 32 byte
zone is affected, ipers is reduced from 113 to 112.
In collaboration with: kib
Modified:
head/sys/vm/uma_int.h
Modified: head/sys/vm/uma_int.h
==============================================================================
--- head/sys/vm/uma_int.h Tue Apr 9 13:16:11 2013 (r249308)
+++ head/sys/vm/uma_int.h Tue Apr 9 15:15:52 2013 (r249309)
@@ -246,7 +246,7 @@ struct uma_slab_head {
SLIST_ENTRY(uma_slab) us_hlink; /* Link for hash table */
u_int8_t *us_data; /* First item */
u_int8_t us_flags; /* Page flags see uma.h */
- u_int8_t us_freecount; /* How many are free? */
+ u_int16_t us_freecount; /* How many are free? */
u_int8_t us_firstfree; /* First free item index */
};
More information about the svn-src-all
mailing list