------------------------------------------------------------------------ ZFS Subsystem Report Mon Jul 2 23:16:39 2012 ------------------------------------------------------------------------ System Information: Kernel Version: 803000 (osreldate) Hardware Platform: amd64 Processor Architecture: amd64 ZFS Storage pool Version: 28 ZFS Filesystem Version: 5 FreeBSD 8.3-RELEASE-p2 #0: Wed May 30 19:34:00 UTC 2012 root 11:16PM up 33 days, 1:02, 2 users, load averages: 0.36, 0.34, 0.27 ------------------------------------------------------------------------ System Memory: 11.64% 920.12 MiB Active, 6.79% 536.39 MiB Inact 73.79% 5.69 GiB Wired, 7.70% 608.73 MiB Cache 0.01% 780.00 KiB Free, 0.06% 4.96 MiB Gap Real Installed: 8.00 GiB Real Available: 99.77% 7.98 GiB Real Managed: 96.69% 7.72 GiB Logical Total: 8.00 GiB Logical Used: 86.01% 6.88 GiB Logical Free: 13.99% 1.12 GiB Kernel Memory: 3.48 GiB Data: 99.55% 3.46 GiB Text: 0.45% 16.20 MiB Kernel Memory Map: 7.67 GiB Size: 5.60% 440.25 MiB Free: 94.40% 7.24 GiB ------------------------------------------------------------------------ ARC Summary: (THROTTLED) Memory Throttle Count: 9.94k ARC Misc: Deleted: 14.06m Recycle Misses: 4.71m Mutex Misses: 3.40k Evict Skips: 18.37m ARC Size: 15.17% 1.02 GiB Target Size: (Adaptive) 15.17% 1.02 GiB Min Size (Hard Limit): 12.50% 859.83 MiB Max Size (High Water): 8:1 6.72 GiB ARC Size Breakdown: Recently Used Cache Size: 60.25% 628.67 MiB Frequently Used Cache Size: 39.75% 414.85 MiB ARC Hash Breakdown: Elements Max: 314.67k Elements Current: 61.37% 193.13k Collisions: 19.12m Chain Max: 15 Chains: 54.09k ------------------------------------------------------------------------ ARC Efficiency: 534.26m Cache Hit Ratio: 95.99% 512.85m Cache Miss Ratio: 4.01% 21.41m Actual Hit Ratio: 58.22% 311.03m Data Demand Efficiency: 89.78% 5.50m Data Prefetch Efficiency: 12.83% 3.65m CACHE HITS BY CACHE LIST: Anonymously Used: 37.22% 190.87m Most Recently Used: 9.15% 46.93m Most Frequently Used: 51.50% 264.10m Most Recently Used Ghost: 0.60% 3.06m Most Frequently Used Ghost: 1.54% 7.89m CACHE HITS BY DATA TYPE: Demand Data: 0.96% 4.94m Prefetch Data: 0.09% 468.81k Demand Metadata: 59.68% 306.08m Prefetch Metadata: 39.26% 201.36m CACHE MISSES BY DATA TYPE: Demand Data: 2.63% 562.21k Prefetch Data: 14.87% 3.18m Demand Metadata: 63.21% 13.53m Prefetch Metadata: 19.29% 4.13m ------------------------------------------------------------------------ L2ARC is disabled ------------------------------------------------------------------------ File-Level Prefetch: (HEALTHY) DMU Efficiency: 401.14m Hit Ratio: 78.91% 316.55m Miss Ratio: 21.09% 84.58m Colinear: 84.58m Hit Ratio: 0.04% 33.66k Miss Ratio: 99.96% 84.55m Stride: 303.55m Hit Ratio: 100.00% 303.55m Miss Ratio: 0.00% 964 DMU Misc: Reclaim: 84.55m Successes: 0.26% 217.63k Failures: 99.74% 84.33m Streams: 12.96m +Resets: 0.02% 2.83k -Resets: 99.98% 12.96m Bogus: 0 ------------------------------------------------------------------------ VDEV cache is disabled ------------------------------------------------------------------------ ZFS Tunables (sysctl): kern.maxusers 384 vm.kmem_size 8286498816 vm.kmem_size_scale 1 vm.kmem_size_min 0 vm.kmem_size_max 329853485875 vfs.zfs.l2c_only_size 0 vfs.zfs.mfu_ghost_data_lsize 37879808 vfs.zfs.mfu_ghost_metadata_lsize 284207104 vfs.zfs.mfu_ghost_size 322086912 vfs.zfs.mfu_data_lsize 86912000 vfs.zfs.mfu_metadata_lsize 58630656 vfs.zfs.mfu_size 164351488 vfs.zfs.mru_ghost_data_lsize 33221120 vfs.zfs.mru_ghost_metadata_lsize 621242880 vfs.zfs.mru_ghost_size 654464000 vfs.zfs.mru_data_lsize 7340032 vfs.zfs.mru_metadata_lsize 191460352 vfs.zfs.mru_size 297907200 vfs.zfs.anon_data_lsize 0 vfs.zfs.anon_metadata_lsize 0 vfs.zfs.anon_size 147456 vfs.zfs.l2arc_norw 1 vfs.zfs.l2arc_feed_again 1 vfs.zfs.l2arc_noprefetch 1 vfs.zfs.l2arc_feed_min_ms 200 vfs.zfs.l2arc_feed_secs 1 vfs.zfs.l2arc_headroom 2 vfs.zfs.l2arc_write_boost 8388608 vfs.zfs.l2arc_write_max 8388608 vfs.zfs.arc_meta_limit 1803189248 vfs.zfs.arc_meta_used 999920520 vfs.zfs.arc_min 901594624 vfs.zfs.arc_max 7212756992 vfs.zfs.dedup.prefetch 1 vfs.zfs.mdcomp_disable 0 vfs.zfs.write_limit_override 0 vfs.zfs.write_limit_inflated 25711398912 vfs.zfs.write_limit_max 1071308288 vfs.zfs.write_limit_min 33554432 vfs.zfs.write_limit_shift 3 vfs.zfs.no_write_throttle 0 vfs.zfs.zfetch.array_rd_sz 1048576 vfs.zfs.zfetch.block_cap 256 vfs.zfs.zfetch.min_sec_reap 2 vfs.zfs.zfetch.max_streams 8 vfs.zfs.prefetch_disable 0 vfs.zfs.mg_alloc_failures 8 vfs.zfs.check_hostid 1 vfs.zfs.recover 0 vfs.zfs.txg.synctime_ms 1000 vfs.zfs.txg.timeout 5 vfs.zfs.scrub_limit 10 vfs.zfs.vdev.cache.bshift 16 vfs.zfs.vdev.cache.size 0 vfs.zfs.vdev.cache.max 16384 vfs.zfs.vdev.write_gap_limit 4096 vfs.zfs.vdev.read_gap_limit 32768 vfs.zfs.vdev.aggregation_limit 131072 vfs.zfs.vdev.ramp_rate 2 vfs.zfs.vdev.time_shift 6 vfs.zfs.vdev.min_pending 4 vfs.zfs.vdev.max_pending 10 vfs.zfs.vdev.bio_flush_disable 0 vfs.zfs.cache_flush_disable 0 vfs.zfs.zil_replay_disable 0 vfs.zfs.zio.use_uma 0 vfs.zfs.version.zpl 5 vfs.zfs.version.spa 28 vfs.zfs.version.acl 1 vfs.zfs.debug 0 vfs.zfs.super_owner 0 ------------------------------------------------------------------------