svn commit: r218405 - projects/graid/head/sys/geom/raid
Alexander Motin
mav at FreeBSD.org
Mon Feb 7 15:47:44 UTC 2011
Author: mav
Date: Mon Feb 7 15:47:43 2011
New Revision: 218405
URL: http://svn.freebsd.org/changeset/base/218405
Log:
Measure rebuild_meta_update in rebuild slabs, not in clusters of slabs.
It is more stable and predictable unit.
Modified:
projects/graid/head/sys/geom/raid/tr_raid1.c
Modified: projects/graid/head/sys/geom/raid/tr_raid1.c
==============================================================================
--- projects/graid/head/sys/geom/raid/tr_raid1.c Mon Feb 7 15:30:11 2011 (r218404)
+++ projects/graid/head/sys/geom/raid/tr_raid1.c Mon Feb 7 15:47:43 2011 (r218405)
@@ -76,7 +76,7 @@ SYSCTL_UINT(_kern_geom_raid_raid1, OID_A
&g_raid1_rebuild_cluster_idle, RAID1_REBUILD_CLUSTER_IDLE,
"Number of slabs to do each time we trigger a rebuild cycle");
-#define RAID1_REBUILD_META_UPDATE 500 /* update meta data every 5 GB or so */
+#define RAID1_REBUILD_META_UPDATE 1024 /* update meta data every 1GB or so */
static int g_raid1_rebuild_meta_update = RAID1_REBUILD_META_UPDATE;
TUNABLE_INT("kern.geom.raid.raid1.rebuild_meta_update",
&g_raid1_rebuild_slab);
@@ -691,13 +691,13 @@ g_raid_tr_iodone_raid1(struct g_raid_tr_
return;
}
+ if (--trs->trso_meta_update <= 0) {
+ g_raid_write_metadata(vol->v_softc,
+ vol, nsd, nsd->sd_disk);
+ trs->trso_meta_update =
+ g_raid1_rebuild_meta_update;
+ }
if (--trs->trso_recover_slabs <= 0) {
- if (--trs->trso_meta_update <= 0) {
- g_raid_write_metadata(vol->v_softc,
- vol, nsd, nsd->sd_disk);
- trs->trso_meta_update =
- g_raid1_rebuild_meta_update;
- }
trs->trso_flags &= ~TR_RAID1_F_DOING_SOME;
return;
}
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