diff options
| author | kmacy <kmacy@FreeBSD.org> | 2009-06-11 22:24:08 +0000 |
|---|---|---|
| committer | kmacy <kmacy@FreeBSD.org> | 2009-06-11 22:24:08 +0000 |
| commit | 8060c5388d25773502a25abfa49011c0f493a5e9 (patch) | |
| tree | 6722844363175450b5c0d30051c05aa08b78a486 /sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c | |
| parent | 807f4c1bf8f6b5d834a6c186eb4b3350fb653021 (diff) | |
| download | FreeBSD-src-8060c5388d25773502a25abfa49011c0f493a5e9.zip FreeBSD-src-8060c5388d25773502a25abfa49011c0f493a5e9.tar.gz | |
pjd has requested that I keep the tunable as zfs_prefetch_disable to minimize gratuitous
differences with Opensolaris' ZFS
Sorry for the churn
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c')
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c index da7875ce..cddc64d 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c @@ -37,7 +37,7 @@ * until we can get this working the way we want it to. */ -int zfs_prefetch_enable = 1; +int zfs_prefetch_disable = 0; /* max # of streams per zfetch */ uint32_t zfetch_max_streams = 8; @@ -49,8 +49,8 @@ uint32_t zfetch_block_cap = 256; uint64_t zfetch_array_rd_sz = 1024 * 1024; SYSCTL_DECL(_vfs_zfs); -SYSCTL_INT(_vfs_zfs, OID_AUTO, prefetch_enable, CTLFLAG_RDTUN, - &zfs_prefetch_enable, 0, "Enable prefetch for systems with less than 4GB"); +SYSCTL_INT(_vfs_zfs, OID_AUTO, prefetch_disable, CTLFLAG_RDTUN, + &zfs_prefetch_disable, 0, "Disable prefetch"); SYSCTL_NODE(_vfs_zfs, OID_AUTO, zfetch, CTLFLAG_RW, 0, "ZFS ZFETCH"); TUNABLE_INT("vfs.zfs.zfetch.max_streams", &zfetch_max_streams); SYSCTL_UINT(_vfs_zfs_zfetch, OID_AUTO, max_streams, CTLFLAG_RDTUN, @@ -598,7 +598,7 @@ dmu_zfetch(zfetch_t *zf, uint64_t offset, uint64_t size, int prefetched) unsigned int blkshft; uint64_t blksz; - if (zfs_prefetch_enable == 0) + if (zfs_prefetch_disable) return; /* files that aren't ln2 blocksz are only one block -- nothing to do */ |
