Author: pjd
Date: Sat Nov 19 10:24:46 2011
New Revision: 227702
URL: http://svn.freebsd.org/changeset/base/227702
Log:
MFC r226620:
Update per-thread I/O statistics collection in ZFS.
This allows to see processes I/O activity in 'top -m io' output.
PR kern/156218
Reported by: Marcus Reid <mar...@blazingdot.com>
Patch by: avg
Approved by: re (kib)
Modified:
stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c
stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c
Directory Properties:
stable/9/sys/ (props changed)
stable/9/sys/amd64/include/xen/ (props changed)
stable/9/sys/boot/ (props changed)
stable/9/sys/boot/i386/efi/ (props changed)
stable/9/sys/boot/ia64/efi/ (props changed)
stable/9/sys/boot/ia64/ski/ (props changed)
stable/9/sys/boot/powerpc/boot1.chrp/ (props changed)
stable/9/sys/boot/powerpc/ofw/ (props changed)
stable/9/sys/cddl/contrib/opensolaris/ (props changed)
stable/9/sys/conf/ (props changed)
stable/9/sys/contrib/dev/acpica/ (props changed)
stable/9/sys/contrib/octeon-sdk/ (props changed)
stable/9/sys/contrib/pf/ (props changed)
stable/9/sys/contrib/x86emu/ (props changed)
Modified: stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c
==============================================================================
--- stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c Sat Nov
19 10:11:50 2011 (r227701)
+++ stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c Sat Nov
19 10:24:46 2011 (r227702)
@@ -627,6 +627,10 @@ dbuf_read(dmu_buf_impl_t *db, zio_t *zio
} else if (db->db_state == DB_UNCACHED) {
spa_t *spa = dn->dn_objset->os_spa;
+#ifdef _KERNEL
+ curthread->td_ru.ru_inblock++;
+#endif
+
if (zio == NULL)
zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL);
dbuf_read_impl(db, zio, &flags);
Modified: stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c
==============================================================================
--- stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c Sat Nov
19 10:11:50 2011 (r227701)
+++ stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c Sat Nov
19 10:24:46 2011 (r227702)
@@ -397,9 +397,12 @@ dmu_buf_hold_array_by_dnode(dnode_t *dn,
return (EIO);
}
/* initiate async i/o */
- if (read) {
+ if (read)
(void) dbuf_read(db, zio, dbuf_flags);
- }
+#ifdef _KERNEL
+ else
+ curthread->td_ru.ru_oublock++;
+#endif
dbp[i] = &db->db;
}
rw_exit(&dn->dn_struct_rwlock);
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