garywongwmfreenas
Cadet
- Joined
- May 17, 2012
- Messages
- 1
I have my computer installed 16GB RAM and 120GB SSD, and hope use the most for ARC ( I understand it reserve 1GB for other programs). It is just for fun and home use.
With reference to this link, http://www.zfsbuild.com/2012/04/18/let-zfs-use-all-of-your-ram/
I don't know how to config FreeNas 8.0.4 to use more ram then 14.25gb (high-water) as shown on the arcstat. E.g. can it use 15GB? Or should it increase 11.82 (adaptive)?
Any idea?
For ARC
For L2 ARC
Quote Detail Setting:
With reference to this link, http://www.zfsbuild.com/2012/04/18/let-zfs-use-all-of-your-ram/
I don't know how to config FreeNas 8.0.4 to use more ram then 14.25gb (high-water) as shown on the arcstat. E.g. can it use 15GB? Or should it increase 11.82 (adaptive)?
Any idea?
For ARC
Code:
ARC Size: 82.92% 11.82 GiB <<< 2. can it reach 14.25GB? gap of ~2GB RAM Target Size: (Adaptive) 82.92% 11.82 GiB Min Size (Hard Limit): 12.50% 1.78 GiB Max Size (High Water): 8:1 14.25 GiB <<<< 1. always 14.25GB, should it increase to 15GB?
For L2 ARC
Code:
L2 ARC Size: (Adaptive) 111.75 GiB <<< 3. similar case for L2_ARC, while I have 120g SSD Header Size: 0.16% 187.96 MiB
Quote Detail Setting:
Code:
System Memory: 0.61% 94.90 MiB Active, 0.35% 54.04 MiB Inact 85.20% 12.99 GiB Wired, 0.00% 740.00 KiB Cache 13.83% 2.11 GiB Free, 0.00% 696.00 KiB Gap Real Installed: 16.00 GiB Real Available: 98.34% 15.73 GiB Real Managed: 96.92% 15.25 GiB Logical Total: 16.00 GiB Logical Used: 86.48% 13.84 GiB Logical Free: 13.52% 2.16 GiB Kernel Memory: 11.65 GiB Data: 99.88% 11.63 GiB Text: 0.12% 14.33 MiB Kernel Memory Map: 14.96 GiB Size: 75.93% 11.36 GiB Free: 24.07% 3.60 GiB Page: 1 ------------------------------------------------------------------------ ARC Summary: (THROTTLED) Storage pool Version: 15 Filesystem Version: 4 Memory Throttle Count: 6.42k ARC Misc: Deleted: 20.44m Recycle Misses: 412.74k Mutex Misses: 12.47k Evict Skips: 12.47k ARC Size: 82.92% 11.82 GiB Target Size: (Adaptive) 82.92% 11.82 GiB Min Size (Hard Limit): 12.50% 1.78 GiB Max Size (High Water): 8:1 14.25 GiB ARC Size Breakdown: Recently Used Cache Size: 93.75% 11.08 GiB Frequently Used Cache Size: 6.25% 756.40 MiB ARC Hash Breakdown: Elements Max: 1.38m Elements Current: 85.29% 1.18m Collisions: 18.87m Chain Max: 28 Chains: 239.43k Page: 2 ------------------------------------------------------------------------ ARC Efficiency: 182.10m Cache Hit Ratio: 94.19% 171.53m Cache Miss Ratio: 5.81% 10.58m Actual Hit Ratio: 91.73% 167.05m Data Demand Efficiency: 99.55% 154.39m Data Prefetch Efficiency: 50.37% 18.82m CACHE HITS BY CACHE LIST: Anonymously Used: 1.20% 2.05m Most Recently Used: 85.80% 147.17m Most Frequently Used: 11.59% 19.87m Most Recently Used Ghost: 0.79% 1.35m Most Frequently Used Ghost: 0.63% 1.08m CACHE HITS BY DATA TYPE: Demand Data: 89.60% 153.69m Prefetch Data: 5.53% 9.48m Demand Metadata: 4.60% 7.89m Prefetch Metadata: 0.27% 466.44k CACHE MISSES BY DATA TYPE: Demand Data: 6.63% 700.92k Prefetch Data: 88.32% 9.34m Demand Metadata: 3.86% 408.70k Prefetch Metadata: 1.19% 125.79k Page: 3 ------------------------------------------------------------------------ L2 ARC Summary: (HEALTHY) Passed Headroom: 30.10m Tried Lock Failures: 176.29k IO In Progress: 3.63k Low Memory Aborts: 114 Free on Write: 92.39k Writes While Full: 132.34k R/W Clashes: 97 Bad Checksums: 0 IO Errors: 0 SPA Mismatch: 0 L2 ARC Size: (Adaptive) 111.75 GiB Header Size: 0.16% 187.96 MiB L2 ARC Evicts: Lock Retries: 248 Upon Reading: 5 L2 ARC Breakdown: 10.58m Hit Ratio: 22.46% 2.38m Miss Ratio: 77.54% 8.20m Feeds: 826.59k L2 ARC Buffer: Bytes Scanned: 510.72 TiB Buffer Iterations: 826.59k List Iterations: 51.53m NULL List Iterations: 1.91m L2 ARC Writes: Writes Sent: 100.00% 186.92k Page: 4 ------------------------------------------------------------------------ File-Level Prefetch: (HEALTHY) DMU Efficiency: 440.06m Hit Ratio: 97.00% 426.86m Miss Ratio: 3.00% 13.20m Colinear: 13.20m Hit Ratio: 0.06% 7.77k Miss Ratio: 99.94% 13.19m Stride: 414.94m Hit Ratio: 99.98% 414.85m Miss Ratio: 0.02% 90.27k DMU Misc: Reclaim: 13.19m Successes: 5.36% 707.00k Failures: 94.64% 12.49m Streams: 12.00m +Resets: 0.03% 4.01k -Resets: 99.97% 12.00m Bogus: 0 Page: 5 ------------------------------------------------------------------------ VDEV Cache Summary: 584.79k Hit Ratio: 42.00% 245.60k Miss Ratio: 47.61% 278.42k Delegations: 10.39% 60.77k Page: 6 ------------------------------------------------------------------------ ZFS Tunable (sysctl): kern.maxusers 384 vm.kmem_size 16374902784 vm.kmem_size_scale 1 vm.kmem_size_min 0 vm.kmem_size_max 329853485875 vfs.zfs.l2c_only_size 114782318080 vfs.zfs.mfu_ghost_data_lsize 10384087552 vfs.zfs.mfu_ghost_metadata_lsize 263436800 vfs.zfs.mfu_ghost_size 10647524352 vfs.zfs.mfu_data_lsize 1461041664 vfs.zfs.mfu_metadata_lsize 24438272 vfs.zfs.mfu_size 1494446080 vfs.zfs.mru_ghost_data_lsize 1607044608 vfs.zfs.mru_ghost_metadata_lsize 85804032 vfs.zfs.mru_ghost_size 1692848640 vfs.zfs.mru_data_lsize 10170377216 vfs.zfs.mru_metadata_lsize 307450880 vfs.zfs.mru_size 10607134720 vfs.zfs.anon_data_lsize 0 vfs.zfs.anon_metadata_lsize 0 vfs.zfs.anon_size 0 vfs.zfs.l2arc_norw 1 vfs.zfs.l2arc_feed_again 1 vfs.zfs.l2arc_noprefetch 0 vfs.zfs.l2arc_feed_min_ms 200 vfs.zfs.l2arc_feed_secs 1 vfs.zfs.l2arc_headroom 2 vfs.zfs.l2arc_write_boost 52428800 vfs.zfs.l2arc_write_max 26214400 vfs.zfs.arc_meta_limit 3825290240 vfs.zfs.arc_meta_used 1055754608 vfs.zfs.mdcomp_disable 0 vfs.zfs.arc_min 1912645120 vfs.zfs.arc_max 15301160960 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.check_hostid 1 vfs.zfs.recover 0 vfs.zfs.txg.write_limit_override 0 vfs.zfs.txg.synctime 5 vfs.zfs.txg.timeout 30 vfs.zfs.scrub_limit 10 vfs.zfs.vdev.cache.bshift 16 vfs.zfs.vdev.cache.size 10485760 vfs.zfs.vdev.cache.max 16384 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.cache_flush_disable 0 vfs.zfs.zil_disable 0 vfs.zfs.zio.use_uma 0 vfs.zfs.version.zpl 4 vfs.zfs.version.spa 15 vfs.zfs.version.dmu_backup_stream 1 vfs.zfs.version.dmu_backup_header 2 vfs.zfs.version.acl 1 vfs.zfs.debug 0 vfs.zfs.super_owner 0