Hi.
All filesystems have compression set to off.
bash-3.00# zfs list -o compression|grep -i on
bash-3.00#
But still lzjb_compress() is ised by ZFS - is it for metadata or what?
bash-3.00# dtrace -n fbt::lzjb_compress:entry'[EMAIL PROTECTED]()]=count();}'
dtrace: description 'fbt::lzjb_compress:entry' matched 1 probe
^C
zfs`zio_compress_data+0x9c
zfs`zio_write_compress+0x68
zfs`arc_write+0xbc
zfs`dbuf_sync+0x6b0
zfs`dnode_sync+0x300
zfs`dmu_objset_sync_dnodes+0x68
zfs`dmu_objset_sync+0x50
zfs`dsl_pool_sync+0x108
zfs`spa_sync+0xe0
zfs`txg_sync_thread+0x130
unix`thread_start+0x4
1
zfs`zio_compress_data+0x9c
zfs`zio_write_compress+0x68
zfs`zio_wait+0xc
zfs`dmu_objset_sync+0x118
zfs`dsl_dataset_sync+0xc
zfs`dsl_pool_sync+0x60
zfs`spa_sync+0xe0
zfs`txg_sync_thread+0x130
unix`thread_start+0x4
1
zfs`zio_compress_data+0x9c
zfs`zio_write_compress+0x68
zfs`zio_wait+0xc
zfs`dmu_objset_sync+0x118
zfs`dsl_pool_sync+0x108
zfs`spa_sync+0xe0
zfs`txg_sync_thread+0x130
unix`thread_start+0x4
2
zfs`zio_compress_data+0x9c
zfs`zio_write_compress+0x68
zfs`arc_write+0xbc
zfs`dbuf_sync+0x6b0
zfs`dnode_sync+0x300
zfs`dmu_objset_sync_dnodes+0x68
zfs`dmu_objset_sync+0x78
zfs`dsl_pool_sync+0x108
zfs`spa_sync+0xe0
zfs`txg_sync_thread+0x130
unix`thread_start+0x4
5
zfs`zio_compress_data+0x9c
zfs`zio_write_compress+0x68
zfs`arc_write+0xbc
zfs`dbuf_sync+0x6b0
zfs`dnode_sync+0x300
zfs`dmu_objset_sync_dnodes+0x68
zfs`dmu_objset_sync+0x78
zfs`dsl_dataset_sync+0xc
zfs`dsl_pool_sync+0x60
zfs`spa_sync+0xe0
zfs`txg_sync_thread+0x130
unix`thread_start+0x4
208
zfs`zio_compress_data+0x9c
zfs`zio_write_compress+0x68
zfs`arc_write+0xbc
zfs`dbuf_sync+0x6b0
zfs`dnode_sync+0x300
zfs`dmu_objset_sync_dnodes+0x68
zfs`dmu_objset_sync+0x50
zfs`dsl_dataset_sync+0xc
zfs`dsl_pool_sync+0x60
zfs`spa_sync+0xe0
zfs`txg_sync_thread+0x130
unix`thread_start+0x4
229
bash-3.00#
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