mirror of
https://github.com/munin-monitoring/contrib.git
synced 2018-11-08 00:59:34 +01:00
Merge pull request #44 from dabb/master
Adding a new ZFS statistic plugin.
This commit is contained in:
commit
503c2a0d73
254
plugins/zfs/zfs_stats_
Executable file
254
plugins/zfs/zfs_stats_
Executable file
@ -0,0 +1,254 @@
|
||||
#!/bin/sh
|
||||
# ZFS statistics for FreeBSD
|
||||
# Author: David Bjornsson <dabb@lolnet.is>
|
||||
#
|
||||
# Description:
|
||||
# This is a rewrite of the zfs-stats-for-freebsd
|
||||
# scripts by patpro. Rather then pulling the
|
||||
# information from the zfs-stats utility, it
|
||||
# pulls it straight from sysctl.
|
||||
#
|
||||
# Tested on FreeBSD 9.0-RELEASE
|
||||
#
|
||||
# Usage: zfs_stats_FUNCTION
|
||||
#
|
||||
# Available functions:
|
||||
# efficiency - ARC efficiency
|
||||
# cachehitlist - Cache hit by cache list
|
||||
# cachehitdtype - Cache hit by data type
|
||||
# dmuprefetch - DMU prefetch
|
||||
# utilization - ARC size breakdown
|
||||
#
|
||||
#%# family=auto
|
||||
|
||||
FUNCTION=$(basename $0 | cut -d_ -f3)
|
||||
PAGESIZE=`/sbin/sysctl -n vm.stats.vm.v_page_size`
|
||||
MEMSIZE=`/sbin/sysctl -n vm.stats.vm.v_page_count`
|
||||
MEMMAX=`echo 'scale=2;' $PAGESIZE*$MEMSIZE | /usr/bin/bc -q`
|
||||
BC='/usr/bin/bc -q'
|
||||
SYS='/sbin/sysctl -n'
|
||||
|
||||
#
|
||||
# Sysctl macros
|
||||
#
|
||||
|
||||
ARC_HITS=`$SYS kstat.zfs.misc.arcstats.hits`
|
||||
ARC_MISSES=`$SYS kstat.zfs.misc.arcstats.misses`
|
||||
|
||||
DEMAND_DATA_HITS=`$SYS kstat.zfs.misc.arcstats.demand_data_hits`
|
||||
DEMAND_DATA_MISSES=`$SYS kstat.zfs.misc.arcstats.demand_data_misses`
|
||||
DEMAND_METADATA_HITS=`$SYS kstat.zfs.misc.arcstats.demand_metadata_hits`
|
||||
DEMAND_METADATA_MISSES=`$SYS kstat.zfs.misc.arcstats.demand_metadata_misses`
|
||||
|
||||
MFU_GHOST_HITS=`$SYS kstat.zfs.misc.arcstats.mfu_ghost_hits`
|
||||
MFU_HITS=`$SYS kstat.zfs.misc.arcstats.mfu_hits`
|
||||
MRU_GHOST_HITS=`$SYS kstat.zfs.misc.arcstats.mru_ghost_hits`
|
||||
MRU_HITS=`$SYS kstat.zfs.misc.arcstats.mru_hits`
|
||||
|
||||
PREFETCH_DATA_HITS=`$SYS kstat.zfs.misc.arcstats.prefetch_data_hits`
|
||||
PREFETCH_DATA_MISSES=`$SYS kstat.zfs.misc.arcstats.prefetch_data_misses`
|
||||
PREFETCH_METADATA_HITS=`$SYS kstat.zfs.misc.arcstats.prefetch_metadata_hits`
|
||||
PREFETCH_METADATA_MISSES=`$SYS kstat.zfs.misc.arcstats.prefetch_metadata_misses`
|
||||
|
||||
DMU_HITS=`$SYS kstat.zfs.misc.zfetchstats.hits`
|
||||
DMU_MISSES=`$SYS kstat.zfs.misc.zfetchstats.misses`
|
||||
|
||||
SIZE=`$SYS kstat.zfs.misc.arcstats.size`
|
||||
MRU_SIZE=`$SYS kstat.zfs.misc.arcstats.p`
|
||||
MAX_SIZE=`$SYS kstat.zfs.misc.arcstats.c_max`
|
||||
MIN_SIZE=`$SYS kstat.zfs.misc.arcstats.c_min`
|
||||
TARGET_SIZE=`$SYS kstat.zfs.misc.arcstats.c`
|
||||
|
||||
|
||||
#
|
||||
# Calculation macros
|
||||
#
|
||||
|
||||
ANON_HITS=`echo "$ARC_HITS-($MFU_HITS+$MRU_HITS+$MFU_GHOST_HITS+$MRU_GHOST_HITS)" | $BC`
|
||||
ARC_ACCESSES_TOTAL=`echo "$ARC_HITS+$ARC_MISSES" | $BC`
|
||||
DEMAND_DATA_TOTAL=`echo "$DEMAND_DATA_HITS+$DEMAND_DATA_MISSES" | $BC`
|
||||
PREFETCH_DATA_TOTAL=`echo "$PREFETCH_DATA_HITS+$PREFETCH_DATA_MISSES" | $BC`
|
||||
REAL_HITS=`echo "$MFU_HITS+$MRU_HITS" | $BC`
|
||||
|
||||
CACHE_HIT_RATIO_PERC=`echo "scale=2 ; (100*$ARC_HITS/$ARC_ACCESSES_TOTAL)" | $BC`
|
||||
CACHE_MISS_RATIO_PERC=`echo "scale=2 ; (100*$ARC_MISSES/$ARC_ACCESSES_TOTAL)" | $BC`
|
||||
ACTUAL_HIT_RATIO_PERC=`echo "scale=2 ; (100*$REAL_HITS/$ARC_ACCESSES_TOTAL)" | $BC`
|
||||
DATA_DEMAND_EFFICIENCY_PERC=`echo "scale=2 ; (100*$DEMAND_DATA_HITS/$DEMAND_DATA_TOTAL)" | $BC`
|
||||
DATA_PREFETCH_EFFICENCY_PERC=`echo "scale=2 ; (100*$PREFETCH_DATA_HITS/$PREFETCH_DATA_TOTAL)" | $BC`
|
||||
|
||||
ANONYMOUSLY_USED_PERC=`echo "scale=2 ; (100*$ANON_HITS/$ARC_HITS)" | $BC`
|
||||
MOST_RECENTLY_USED_PERC=`echo "scale=2 ; (100*$MRU_HITS/$ARC_HITS)" | $BC`
|
||||
MOST_FREQUENTLY_USED_PERC=`echo "scale=2 ; (100*$MFU_HITS/$ARC_HITS)" | $BC`
|
||||
MOST_RECENTLY_USED_GHOST_PERC=`echo "scale=2 ; (100*$MRU_GHOST_HITS/$ARC_HITS)" | $BC`
|
||||
MOST_FREQUENTLY_USED_GHOST_PERC=`echo "scale=2 ; (100*$MFU_GHOST_HITS/$ARC_HITS)" | $BC`
|
||||
|
||||
DEMAND_DATA_HIT_PERC=`echo "scale=2 ; (100*$DEMAND_DATA_HITS/$ARC_HITS)" | $BC`
|
||||
DEMAND_DATA_MISS_PERC=`echo "scale=2 ; (100*$DEMAND_DATA_MISSES/$ARC_HITS)" | $BC`
|
||||
PREFETCH_DATA_HIT_PERC=`echo "scale=2 ; (100*$PREFETCH_DATA_HITS/$ARC_HITS)" | $BC`
|
||||
PREFETCH_DATA_MISS_PERC=`echo "scale=2 ; (100*$PREFETCH_DATA_MISSES/$ARC_HITS)" | $BC`
|
||||
DEMAND_METADATA_HIT_PERC=`echo "scale=2 ; (100*$DEMAND_METADATA_HITS/$ARC_HITS)" | $BC`
|
||||
DEMAND_METADATA_MISS_PERC=`echo "scale=2 ; (100*$DEMAND_METADATA_MISSES/$ARC_HITS)" | $BC`
|
||||
PREFETCH_METADATA_HIT_PERC=`echo "scale=2 ; (100*$PREFETCH_METADATA_HITS/$ARC_HITS)" | $BC`
|
||||
PREFETCH_METADATA_MISSES_PERC=`echo "scale=2 ; (100*$PREFETCH_METADATA_MISSES/$ARC_HITS)" | $BC`
|
||||
|
||||
DMU_TOTAL=`echo "$DMU_HITS+$DMU_MISSES" | $BC`
|
||||
DMU_HITS_PERC=`echo "scale=2 ; (100*$DMU_HITS/$DMU_TOTAL)" | $BC`
|
||||
DMU_MISSES_PERC=`echo "scale=2 ; (100*$DMU_MISSES/$DMU_TOTAL)" | $BC`
|
||||
|
||||
if [ $SIZE -gt $TARGET_SIZE ]; then
|
||||
MFU_SIZE=`echo "$SIZE-$MRU_SIZE" | $BC`
|
||||
else
|
||||
MFU_SIZE=`echo "$TARGET_SIZE-$MRU_SIZE" | $BC`
|
||||
fi
|
||||
|
||||
|
||||
efficiency() {
|
||||
|
||||
if [ "$1" = "config" ]; then
|
||||
echo 'graph_title ZFS ARC Efficiency'
|
||||
echo 'graph_args -u 100'
|
||||
echo 'graph_vlabel %'
|
||||
echo 'graph_category ZFS'
|
||||
echo 'graph_info This graph shows the ARC Efficiency'
|
||||
|
||||
echo 'hits.label Cache Hit Ratio'
|
||||
echo 'misses.label Cache Miss Ratio'
|
||||
echo 'actual_hits.label Actual Hit Ratio'
|
||||
echo 'data_demand_efficiency.label Data Demand Efficiency'
|
||||
echo 'data_prefetch_efficiency.label Data Prefetch Efficiency'
|
||||
|
||||
exit 0
|
||||
else
|
||||
echo 'hits.value ' $CACHE_HIT_RATIO_PERC
|
||||
echo 'misses.value ' $CACHE_MISS_RATIO_PERC
|
||||
echo 'actual_hits.value ' $ACTUAL_HIT_RATIO_PERC
|
||||
echo 'data_demand_efficiency.value ' $DATA_DEMAND_EFFICIENCY_PERC
|
||||
echo 'data_prefetch_efficiency.value ' $DATA_PREFETCH_EFFICENCY_PERC
|
||||
fi
|
||||
}
|
||||
|
||||
cachehitlist() {
|
||||
if [ "$1" = "config" ]; then
|
||||
echo 'graph_title ZFS ARC Efficiency: Cache hits by cache list'
|
||||
echo 'graph_args -u 100'
|
||||
echo 'graph_vlabel %'
|
||||
echo 'graph_category ZFS'
|
||||
echo 'graph_info This graph shows the ARC Efficiency'
|
||||
|
||||
echo 'cache_list_anon.label Anonymously Used'
|
||||
echo 'cache_list_most_rec.label Most Recently Used'
|
||||
echo 'cache_list_most_freq.label Most Frequently Used'
|
||||
echo 'cache_list_most_rec_ghost.label Most Recently Used Ghost'
|
||||
echo 'cache_list_most_freq_ghost.label Most Frequently Used Ghost'
|
||||
|
||||
exit 0
|
||||
else
|
||||
echo 'cache_list_anon.value ' $ANONYMOUSLY_USED_PERC
|
||||
echo 'cache_list_most_rec.value ' $MOST_RECENTLY_USED_PERC
|
||||
echo 'cache_list_most_freq.value ' $MOST_FREQUENTLY_USED_PERC
|
||||
echo 'cache_list_most_rec_ghost.value ' $MOST_RECENTLY_USED_GHOST_PERC
|
||||
echo 'cache_list_most_freq_ghost.value ' $MOST_FREQUENTLY_USED_GHOST_PERC
|
||||
fi
|
||||
}
|
||||
|
||||
cachehitdtype() {
|
||||
if [ "$1" = "config" ]; then
|
||||
echo 'graph_title ZFS ARC Efficiency: Cache hits by data type'
|
||||
echo 'graph_args -u 100'
|
||||
echo 'graph_vlabel %'
|
||||
echo 'graph_category ZFS'
|
||||
echo 'graph_info This graph shows the ARC Efficiency'
|
||||
|
||||
echo 'data_type_demand_hits.label Demand Data Hit Ratio'
|
||||
echo 'data_type_demand_misses.label Demand Data Miss Ratio'
|
||||
echo 'data_type_prefetch_hits.label Prefetch Data Hit Ratio'
|
||||
echo 'data_type_prefetch_misses.label Prefetch Data Miss Ratio'
|
||||
echo 'data_type_demand_metadata_hits.label Demand Metadata Hit Ratio'
|
||||
echo 'data_type_demand_metadata_misses.label Demand Metadata Miss Ratio'
|
||||
echo 'data_type_prefetch_metadata_hits.label Prefetch Metadata Hit Ratio'
|
||||
echo 'data_type_prefetch_metadata_misses.label Prefetch Metadata Miss Ratio'
|
||||
|
||||
exit 0
|
||||
else
|
||||
echo 'data_type_demand_hits.value ' $DEMAND_DATA_HIT_PERC
|
||||
echo 'data_type_demand_misses.value ' $DEMAND_DATA_MISS_PERC
|
||||
echo 'data_type_prefetch_hits.value ' $PREFETCH_DATA_HIT_PERC
|
||||
echo 'data_type_prefetch_misses.value ' $PREFETCH_DATA_MISS_PERC
|
||||
echo 'data_type_demand_metadata_hits.value ' $DEMAND_METADATA_HIT_PERC
|
||||
echo 'data_type_demand_metadata_misses.value ' $DEMAND_METADATA_MISS_PERC
|
||||
echo 'data_type_prefetch_metadata_hits.value ' $PREFETCH_METADATA_HIT_PERC
|
||||
echo 'data_type_prefetch_metadata_misses.value ' $PREFETCH_METADATA_MISSES_PERC
|
||||
fi
|
||||
}
|
||||
|
||||
dmuprefetch() {
|
||||
|
||||
if [ "$1" = "config" ]; then
|
||||
echo 'graph_title ZFS DMU prefetch stats'
|
||||
echo 'graph_args -u 100'
|
||||
echo 'graph_vlabel %'
|
||||
echo 'graph_category ZFS'
|
||||
echo 'graph_info This graph shows the DMU prefetch stats'
|
||||
|
||||
echo 'hits.label Hit percentage'
|
||||
echo 'misses.label Miss percentage'
|
||||
|
||||
exit 0
|
||||
else
|
||||
echo 'hits.value ' $DMU_HITS_PERC
|
||||
echo 'misses.value ' $DMU_MISSES_PERC
|
||||
fi
|
||||
}
|
||||
|
||||
utilization() {
|
||||
|
||||
if [ "$1" = "config" ]; then
|
||||
echo 'graph_title ZFS ARC Size'
|
||||
echo 'graph_args --base 1024 -l 0 --vertical-label Bytes --upper-limit '$MEMMAX
|
||||
echo 'graph_vlabel Size in MB'
|
||||
echo 'graph_category ZFS'
|
||||
echo 'graph_info This graph shows the ARC Size utilization'
|
||||
|
||||
echo 'max_size.label Maximum Size'
|
||||
echo 'max_size.draw AREA'
|
||||
echo 'target_size.label Target Size'
|
||||
echo 'target_size.draw AREA'
|
||||
echo 'size.label Size'
|
||||
echo 'size.draw AREA'
|
||||
echo 'recently_size.label Recently Used Cache Size'
|
||||
echo 'recently_size.draw AREA'
|
||||
echo 'frequently_size.label Frequently Used Cache Size'
|
||||
echo 'frequently_size.draw AREA'
|
||||
echo 'min_size.label Minimum Size'
|
||||
echo 'min_size.draw AREA'
|
||||
|
||||
exit 0
|
||||
else
|
||||
echo 'max_size.value ' $MAX_SIZE
|
||||
echo 'target_size.value ' $TARGET_SIZE
|
||||
echo 'size.value ' $SIZE
|
||||
echo 'recently_size.value ' $MRU_SIZE
|
||||
echo 'frequently_size.value ' $MFU_SIZE
|
||||
echo 'min_size.value ' $MIN_SIZE
|
||||
fi
|
||||
}
|
||||
|
||||
[ "$1" = "config" ] && echo "graph_category zfs"
|
||||
|
||||
case "$FUNCTION" in
|
||||
efficiency)
|
||||
efficiency $1
|
||||
;;
|
||||
cachehitlist)
|
||||
cachehitlist $1
|
||||
;;
|
||||
cachehitdtype)
|
||||
cachehitdtype $1
|
||||
;;
|
||||
dmuprefetch)
|
||||
dmuprefetch $1
|
||||
;;
|
||||
utilization)
|
||||
utilization $1
|
||||
;;
|
||||
esac
|
Loading…
Reference in New Issue
Block a user