diff options
| author | George Wilson <george.wilson@delphix.com> | 2015-10-07 08:58:52 -0700 |
|---|---|---|
| committer | Matthew Ahrens <mahrens@delphix.com> | 2015-10-07 08:58:52 -0700 |
| commit | 632802744ef6d17e06d6980a95f631615c3b060f (patch) | |
| tree | 9bb1785fd4d95fdbff71fe7e3c802a49b19b8dda | |
| parent | 7205e712fa5af984664437dc9b614c6101f15817 (diff) | |
| download | illumos-joyent-632802744ef6d17e06d6980a95f631615c3b060f.tar.gz | |
6281 prefetching should apply to 1MB reads
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Alexander Motin <mav@freebsd.org>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: Justin Gibbs <gibbs@scsiguy.com>
Reviewed by: Xin Li <delphij@freebsd.org>
Approved by: Gordon Ross <gordon.ross@nexenta.com>
| -rw-r--r-- | usr/src/uts/common/fs/zfs/dmu.c | 2 | ||||
| -rw-r--r-- | usr/src/uts/common/fs/zfs/dmu_zfetch.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/usr/src/uts/common/fs/zfs/dmu.c b/usr/src/uts/common/fs/zfs/dmu.c index 98b92a1dbe..5b24268af1 100644 --- a/usr/src/uts/common/fs/zfs/dmu.c +++ b/usr/src/uts/common/fs/zfs/dmu.c @@ -442,7 +442,7 @@ dmu_buf_hold_array_by_dnode(dnode_t *dn, uint64_t offset, uint64_t length, } if ((flags & DMU_READ_NO_PREFETCH) == 0 && read && - length < zfetch_array_rd_sz) { + length <= zfetch_array_rd_sz) { dmu_zfetch(&dn->dn_zfetch, blkid, nblks); } rw_exit(&dn->dn_struct_rwlock); diff --git a/usr/src/uts/common/fs/zfs/dmu_zfetch.c b/usr/src/uts/common/fs/zfs/dmu_zfetch.c index b05e8f0cf2..f2cdf863d8 100644 --- a/usr/src/uts/common/fs/zfs/dmu_zfetch.c +++ b/usr/src/uts/common/fs/zfs/dmu_zfetch.c @@ -24,7 +24,7 @@ */ /* - * Copyright (c) 2013, 2014 by Delphix. All rights reserved. + * Copyright (c) 2013, 2015 by Delphix. All rights reserved. */ #include <sys/zfs_context.h> @@ -49,7 +49,7 @@ uint32_t zfetch_max_streams = 8; uint32_t zfetch_min_sec_reap = 2; /* max bytes to prefetch per stream (default 8MB) */ uint32_t zfetch_max_distance = 8 * 1024 * 1024; -/* number of bytes in a array_read at which we stop prefetching (1MB) */ +/* max number of bytes in an array_read in which we allow prefetching (1MB) */ uint64_t zfetch_array_rd_sz = 1024 * 1024; typedef struct zfetch_stats { |