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MFV r289188: 6281 prefetching should apply to 1MB reads

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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>
Author: George Wilson <george.wilson@delphix.com>

illumos/illumos-gate@632802744e
This commit is contained in:
mav 2015-10-12 15:48:45 +00:00
parent 297ae72354
commit 997b0e8273
1 changed files with 2 additions and 2 deletions
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4
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c
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@ -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;
SYSCTL_DECL(_vfs_zfs);