co mi zere kernel pamet
Radim Kolar
hsn at filez.com
Sun Jul 8 15:02:56 CEST 2012
Da se zjistit co vsechno ce mi nacpalo do toho wired a mam timpadem malo
pameti pro aplikace?
Mem: 1387M Active, 492M Inact, 5699M Wired, 226M Cache, 89M Free
Swap: 8192M Total, 2014M Used, 6178M Free, 24% Inuse
mam tam ZFS, prikladam report, ale jak vidite tak arc size max
limitovano na 2 GB MAX.
------------------------------------------------------------------------
ZFS Subsystem Report Sun Jul 8 14:53:41 2012
------------------------------------------------------------------------
System Memory:
17.65% 1.36 GiB Active, 6.21% 490.04 MiB Inact
72.20% 5.57 GiB Wired, 2.86% 225.76 MiB Cache
1.05% 83.09 MiB Free, 0.03% 2.41 MiB Gap
Real Installed: 8.00 GiB
Real Available: 99.68% 7.97 GiB
Real Managed: 96.68% 7.71 GiB
Logical Total: 8.00 GiB
Logical Used: 90.25% 7.22 GiB
Logical Free: 9.75% 798.88 MiB
Kernel Memory: 177.36 MiB
Data: 90.90% 161.22 MiB
Text: 9.10% 16.14 MiB
Kernel Memory Map: 7.24 GiB
Size: 62.51% 4.52 GiB
Free: 37.49% 2.71 GiB
Page: 1
------------------------------------------------------------------------
ARC Summary: (THROTTLED)
Storage pool Version: 28
Filesystem Version: 5
Memory Throttle Count: 2.55m
ARC Misc:
Deleted: 73.90m
Recycle Misses: 13.09m
Mutex Misses: 81.45k
Evict Skips: 81.45k
ARC Size: 80.55% 1.61 GiB
Target Size: (Adaptive) 80.57% 1.61 GiB
Min Size (Hard Limit): 12.50% 256.00 MiB
Max Size (High Water): 8:1 2.00 GiB
ARC Size Breakdown:
Recently Used Cache Size: 64.09% 1.03 GiB
Frequently Used Cache Size: 35.91% 592.43 MiB
ARC Hash Breakdown:
Elements Max: 316.76k
Elements Current: 47.89% 151.69k
Collisions: 104.82m
Chain Max: 15
Chains: 40.84k
Page: 2
------------------------------------------------------------------------
ARC Efficiency: 1.57b
Cache Hit Ratio: 94.72% 1.49b
Cache Miss Ratio: 5.28% 83.07m
Actual Hit Ratio: 93.51% 1.47b
Data Demand Efficiency: 96.96% 1.31b
Data Prefetch Efficiency: 23.82% 27.66m
CACHE HITS BY CACHE LIST:
Most Recently Used: 12.41% 185.10m
Most Frequently Used: 86.30% 1.29b
Most Recently Used Ghost: 0.29% 4.32m
Most Frequently Used Ghost: 1.20% 17.88m
CACHE HITS BY DATA TYPE:
Demand Data: 84.85% 1.27b
Prefetch Data: 0.44% 6.59m
Demand Metadata: 13.86% 206.63m
Prefetch Metadata: 0.85% 12.71m
CACHE MISSES BY DATA TYPE:
Demand Data: 47.79% 39.70m
Prefetch Data: 25.36% 21.07m
Demand Metadata: 20.48% 17.01m
Prefetch Metadata: 6.36% 5.29m
Page: 3
------------------------------------------------------------------------
File-Level Prefetch: (HEALTHY)
DMU Efficiency: 4.45b
Hit Ratio: 66.96% 2.98b
Miss Ratio: 33.04% 1.47b
Colinear: 1.47b
Hit Ratio: 0.05% 709.83k
Miss Ratio: 99.95% 1.47b
Stride: 2.95b
Hit Ratio: 99.95% 2.94b
Miss Ratio: 0.05% 1.39m
DMU Misc:
Reclaim: 1.47b
Successes: 0.71% 10.45m
Failures: 99.29% 1.46b
Streams: 35.35m
+Resets: 0.31% 110.57k
-Resets: 99.69% 35.24m
Bogus: 0
Page: 5
------------------------------------------------------------------------
ZFS Tunable (sysctl):
kern.maxusers 384
vm.kmem_size 8589934592
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 440130048
vfs.zfs.mfu_ghost_metadata_lsize 134996992
vfs.zfs.mfu_ghost_size 575127040
vfs.zfs.mfu_data_lsize 805737984
vfs.zfs.mfu_metadata_lsize 33792
vfs.zfs.mfu_size 934468096
vfs.zfs.mru_ghost_data_lsize 459479040
vfs.zfs.mru_ghost_metadata_lsize 692491264
vfs.zfs.mru_ghost_size 1151970304
vfs.zfs.mru_data_lsize 387213312
vfs.zfs.mru_metadata_lsize 87072768
vfs.zfs.mru_size 570652672
vfs.zfs.anon_data_lsize 0
vfs.zfs.anon_metadata_lsize 0
vfs.zfs.anon_size 6983680
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 536870912
vfs.zfs.arc_meta_used 536934784
vfs.zfs.arc_min 268435456
vfs.zfs.arc_max 2147483648
vfs.zfs.dedup.prefetch 1
vfs.zfs.mdcomp_disable 0
vfs.zfs.write_limit_override 0
vfs.zfs.write_limit_inflated 25687388160
vfs.zfs.write_limit_max 1070307840
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 12
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 1
vfs.zfs.zil_replay_disable 0
vfs.zfs.zio.use_uma 1
vfs.zfs.version.zpl 5
vfs.zfs.version.spa 28
vfs.zfs.version.acl 1
vfs.zfs.debug 0
vfs.zfs.super_owner 0
Page: 7
------------------------------------------------------------------------
# netstat -m
1030/2885/3915 mbufs in use (current/cache/total)
1026/2792/3818/32768 mbuf clusters in use (current/cache/total/max)
1023/1685 mbuf+clusters out of packet secondary zone in use (current/cache)
0/0/0/16384 4k (page size) jumbo clusters in use (current/cache/total/max)
0/0/0/8192 9k jumbo clusters in use (current/cache/total/max)
0/0/0/4096 16k jumbo clusters in use (current/cache/total/max)
2309K/6305K/8614K bytes allocated to network (current/cache/total)
0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
0/0/0 requests for jumbo clusters denied (4k/9k/16k)
0/0/0 sfbufs in use (current/peak/max)
0 requests for sfbufs denied
0 requests for sfbufs delayed
22 requests for I/O initiated by sendfile
0 calls to protocol drain routines
More information about the Users-l
mailing list