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| author | mav <mav@FreeBSD.org> | 2016-10-14 07:14:35 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2016-10-14 07:14:35 +0000 |
| commit | 7b486c4fa95c260ad563ac3ea2bf866095c0465e (patch) | |
| tree | 4ff9309fe08529ed496ecd20a68e2641ae0c9ba2 /cddl/contrib/opensolaris | |
| parent | 4cd782e87895d68f7e1fa43a61845536f8b9782a (diff) | |
| download | FreeBSD-src-7b486c4fa95c260ad563ac3ea2bf866095c0465e.zip FreeBSD-src-7b486c4fa95c260ad563ac3ea2bf866095c0465e.tar.gz | |
MFC r305323: MFV r302991: 6950 ARC should cache compressed data
illumos/illumos-gate@dcbf3bd6a1f1360fc1afcee9e22c6dcff7844bf2
https://github.com/illumos/illumos-gate/commit/dcbf3bd6a1f1360fc1afcee9e22c6dcff
7844bf2
https://www.illumos.org/issues/6950
When reading compressed data from disk, the ARC should keep the compressed
block cached and only decompress it when consumers access the block. The
uncompressed data should be short-lived allowing the ARC to cache a much large
r
amount of data. The DMU would also maintain a smaller cache of uncompressed
blocks to minimize the impact of decompressing frequently accessed blocks.
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Don Brady <don.brady@intel.com>
Reviewed by: Richard Elling <Richard.Elling@RichardElling.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
Author: George Wilson <george.wilson@delphix.com>
Diffstat (limited to 'cddl/contrib/opensolaris')
| -rw-r--r-- | cddl/contrib/opensolaris/cmd/zdb/zdb.c | 2 | ||||
| -rw-r--r-- | cddl/contrib/opensolaris/cmd/ztest/ztest.c | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/cddl/contrib/opensolaris/cmd/zdb/zdb.c b/cddl/contrib/opensolaris/cmd/zdb/zdb.c index 641ab59..05d9fae 100644 --- a/cddl/contrib/opensolaris/cmd/zdb/zdb.c +++ b/cddl/contrib/opensolaris/cmd/zdb/zdb.c @@ -1289,7 +1289,7 @@ visit_indirect(spa_t *spa, const dnode_phys_t *dnp, } if (!err) ASSERT3U(fill, ==, BP_GET_FILL(bp)); - (void) arc_buf_remove_ref(buf, &buf); + arc_buf_destroy(buf, &buf); } return (err); diff --git a/cddl/contrib/opensolaris/cmd/ztest/ztest.c b/cddl/contrib/opensolaris/cmd/ztest/ztest.c index f655c3d..488e1fd 100644 --- a/cddl/contrib/opensolaris/cmd/ztest/ztest.c +++ b/cddl/contrib/opensolaris/cmd/ztest/ztest.c @@ -189,6 +189,7 @@ extern uint64_t metaslab_gang_bang; extern uint64_t metaslab_df_alloc_threshold; extern uint64_t zfs_deadman_synctime_ms; extern int metaslab_preload_limit; +extern boolean_t zfs_compressed_arc_enabled; static ztest_shared_opts_t *ztest_shared_opts; static ztest_shared_opts_t ztest_opts; @@ -5355,6 +5356,12 @@ ztest_resume_thread(void *arg) if (spa_suspended(spa)) ztest_resume(spa); (void) poll(NULL, 0, 100); + + /* + * Periodically change the zfs_compressed_arc_enabled setting. + */ + if (ztest_random(10) == 0) + zfs_compressed_arc_enabled = ztest_random(2); } return (NULL); } |
