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https://github.com/munin-monitoring/contrib.git
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Initial version
This commit is contained in:
Wiktor Niesiobedzki
Steve Schnepp
parent
b1121b882f
commit
208aeb0c48
231
plugins/other/zfs_cache_efficiency
Executable file
231
plugins/other/zfs_cache_efficiency
Executable file
@ -0,0 +1,231 @@
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#!/bin/sh
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# ZFS ARC statistics for FreeBSD
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# Author alex@trull.org:
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#
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#%# family=auto
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#%# capabilities=autoconf
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sysctl='/sbin/sysctl'
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case $1 in
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config)
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cat <<EOF
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graph_title ZFS ARC efficiency
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graph_vlabel %
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graph_scale no
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graph_category filesystem
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graph_args -l 0
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graph_info FreeBSD ZFS ARC Utilisation - Counters
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graph_period minute
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graph_order hits misses l2_hits l2_misses mfu_hits mru_hits arc_access_total mfu_hits_perc mru_hits_perc arc_misses_perc l2_efficency_tot
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deleted.graph no
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deleted.min 0
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deleted.type DERIVE
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deleted.label Deleted?
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demand_data_hits.graph no
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demand_data_hits.min 0
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demand_data_hits.type DERIVE
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demand_data_hits.label Cache hits - demand data
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demand_data_misses.graph no
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demand_data_misses.min 0
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demand_data_misses.type DERIVE
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demand_data_misses.label Cache miss - demand data
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demand_metadata_hits.graph no
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demand_metadata_hits.min 0
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demand_metadata_hits.type DERIVE
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demand_metadata_hits.label Cache hits - metadata
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demand_metadata_misses.graph no
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demand_metadata_misses.min 0
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demand_metadata_misses.type DERIVE
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demand_metadata_misses.label Cache miss - metadata
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evict_skip.graph no
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evict_skip.min 0
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evict_skip.type DERIVE
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evict_skip.label evict_skip?
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hash_chain_max.graph no
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hash_chain_max.min 0
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hash_chain_max.type DERIVE
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hash_chain_max.label hash_chain_max?
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hash_chains.graph no
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hash_chains.min 0
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hash_chains.type DERIVE
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hash_chains.label hash_chains?
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hash_collisions.graph no
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hash_collisions.min 0
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hash_collisions.type DERIVE
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hash_collisions.label hash_collisions?
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hash_elements.graph no
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hash_elements.min 0
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hash_elements.type DERIVE
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hash_elements.label hash_elements
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hash_elements_max.graph no
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hash_elements_max.min 0
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hash_elements_max.type DERIVE
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hash_elements_max.label hash_elements_max?
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hits.graph no
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hits.min 0
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hits.type DERIVE
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hits.label Cache hits
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l2_abort_lowmem.graph no
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l2_abort_lowmem.min 0
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l2_abort_lowmem.type GAUGE
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l2_cksum_bad.graph no
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l2_cksum_bad.min 0
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l2_cksum_bad.type DERIVE
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l2_cksum_bad.label ARCL2 Bad checksum errors
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l2_evict_lock_retry.graph no
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l2_evict_lock_retry.min 0
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l2_evict_lock_retry.type DERIVE
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l2_evict_reading.graph no
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l2_evict_reading.min 0
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l2_evict_reading.type DERIVE
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l2_feeds.graph no
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l2_feeds.min 0
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l2_feeds.type DERIVE
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l2_free_on_write.graph no
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l2_free_on_write.min 0
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l2_free_on_write.type DERIVE
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l2_hits.graph no
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l2_hits.min 0
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l2_hits.type DERIVE
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l2_hits.label L2ARC hits
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l2_io_error.graph no
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l2_io_error.min 0
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l2_io_error.type DERIVE
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l2_io_error.label L2AC I/O errors
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l2_misses.graph no
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l2_misses.min 0
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l2_misses.type DERIVE
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l2_misses.label L2ARC cache misses
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l2_rw_clash.graph no
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l2_rw_clash.min 0
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l2_rw_clash.type DERIVE
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l2_writes_done.graph no
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l2_writes_done.min 0
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l2_writes_done.type DERIVE
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l2_writes_error.graph no
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l2_writes_error.min 0
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l2_writes_error.type DERIVE
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l2_writes_hdr_miss.graph no
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l2_writes_hdr_miss.min 0
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l2_writes_hdr_miss.type DERIVE
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l2_writes_hdr_miss.label L2ARC Header misses
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l2_writes_sent.graph no
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l2_writes_sent.min 0
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l2_writes_sent.type DERIVE
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l2_writes_sent.label L2ARC writes sent
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memory_throttle_count.graph no
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memory_throttle_count.min 0
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memory_throttle_count.label memory_throttle_count?
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mfu_ghost_hits.graph no
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mfu_ghost_hits.min 0
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mfu_ghost_hits.type DERIVE
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mfu_ghost_hits.label Most frequently used ghost hits
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mfu_hits.graph no
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mfu_hits.min 0
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mfu_hits.type DERIVE
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mfu_hits.label Most frequently used hits
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misses.graph no
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misses.min 0
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misses.type DERIVE
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misses.label Cache misses
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mru_ghost_hits.graph no
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mru_ghost_hits.min 0
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mru_ghost_hits.type DERIVE
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mru_ghost_hits.label Most recently used ghost hits
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mru_hits.graph no
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mru_hits.min 0
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mru_hits.type DERIVE
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mru_hits.label Most recently used hits
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mutex_miss.graph no
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mutex_miss.min 0
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mutex_miss.type DERIVE
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prefetch_data_hits.graph no
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prefetch_data_hits.min 0
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prefetch_data_hits.type DERIVE
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prefetch_data_hits.label Prefetch Data hits
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prefetch_data_misses.graph no
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prefetch_data_misses.min 0
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prefetch_data_misses.type DERIVE
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prefetch_data_misses.label Prefetch data misses
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prefetch_metadata_hits.graph no
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prefetch_metadata_hits.min 0
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prefetch_metadata_hits.type DERIVE
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prefetch_metadata_hits.label Prefetch metadata hits
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prefetch_metadata_misses.graph no
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prefetch_metadata_misses.min 0
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prefetch_metadata_misses.type DERIVE
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prefetch_metadata_misses.label Prefetch metadata misses
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recycle_miss.graph no
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recycle_miss.min 0
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recycle_miss.type DERIVE
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recycle_miss.label Recycle misses
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arc_access_total.graph no
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arc_access_total.cdef hits,misses,ADDNAN
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arc_access_total.label ARC access total number
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arc_hits_perc.cdef hits,100,*,arc_access_total,/
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arc_hits_perc.label ARC hits
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arc_hits_perc.graph no
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real_hits.cdef mfu_hits,mru_hits,ADDNAN,100,*,hits,/
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real_hits.label ARC real (MRU + MFU) hits (no ghost & anon)
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real_hits.graph no
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mfu_hits_perc.cdef mfu_hits,100,*,arc_access_total,/
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mfu_hits_perc.label Most frequently used hits
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mfu_hits_perc.graph yes
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mfu_hits_perc.draw AREA
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mru_hits_perc.cdef mru_hits,100,*,arc_access_total,/
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mru_hits_perc.label Most recently used hits
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mru_hits_perc.graph yes
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mru_hits_perc.draw STACK
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arc_misses_perc.graph yes
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arc_misses_perc.cdef misses,100,*,arc_access_total,/
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arc_misses_perc.label ARC misses
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arc_misses_perc.draw STACK
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l2_efficency_tot.graph yes
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l2_efficency_tot.cdef l2_hits,100,*,l2_hits,l2_misses,hits,misses,ADDNAN,ADDNAN,ADDNAN,/
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l2_efficency_tot.label L2ARC hit ratio of L1&L2 accesses
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EOF
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# demand_data_hits_perc.cdef demand_data_hits,100,*,hits,/
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# demand_data_hits_perc.label Cache hits of demand data type
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# demand_data_hits_perc.graph no
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# demand_metadata_hits_perc.cdef demand_metadata_hits,100,*,hits,/
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# demand_metadata_hits_perc.label Cache hits of Demand metadata type
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# demand_metadata_hits_perc.graph no
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# prefetch_data_hits_perc.cdef prefetch_data_hits,100,*,hits,/
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# prefetch_data_hits_perc.label Prefetch data hits factor of all hits
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# prefetch_data_hits_perc.graph no
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# prefetch_metadata_hits_perc.cdef prefetch_metadata_hits,100,*,hits,/
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# prefetch_metadata_hits_perc.label Prefetch metadata hits factor off hits
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# prefetch_metadata_hits_perc.graph no
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# demand_data_efficency.cdef demand_data_hits,100,*,demand_data_hits,demand_data_misses,ADDNAN,/
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# demand_data_efficency.label Data demand efficency
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# demand_data_efficency.graph no
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# anon_hits.graph no
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# anon_hits.cdef hits,mfu_hits,mru_hits,mfu_ghost_hits,mru_ghost_hits,ADDNAN,ADDNAN,ADDNAN,-,100,*,hits,/
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# anon_hits.label ARC Anon hits
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# mfu_ghost_hits_perc.cdef mfu_ghost_hits,100,*,hits,/
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# mfu_ghost_hits_perc.label Most frequently used ghost hits
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# mfu_ghost_hits_perc.graph no
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# mru_ghost_hits_perc.cdef mru_ghost_hits,100,*,hits,/
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# mru_ghost_hits_perc.label Most recently used ghost hits
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# mru_ghost_hits_perc.graph no
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exit 0
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;;
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autoconf)
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if [ ! -x ${sysctl} ]; then
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echo "no (${sysctl} is not executable)"
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exit 1
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fi
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ostype=`uname -s`
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if [ ${ostype} = "FreeBSD" ]; then
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echo "yes"
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exit 0
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fi
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echo "no (You're OS is not supported by this plugin)"
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exit 1
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;;
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suggest)
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exit 0
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;;
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esac
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$sysctl kstat.zfs.misc.arcstats | sed -e 's/^kstat.zfs.misc.arcstats.//' -e 's/:/.value/'
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