diff options
Diffstat (limited to 'collectors/proc.plugin/zfs_common.c')
| -rw-r--r-- | collectors/proc.plugin/zfs_common.c | 714 |
1 files changed, 714 insertions, 0 deletions
diff --git a/collectors/proc.plugin/zfs_common.c b/collectors/proc.plugin/zfs_common.c new file mode 100644 index 000000000..1aaceb908 --- /dev/null +++ b/collectors/proc.plugin/zfs_common.c @@ -0,0 +1,714 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "zfs_common.h" + +struct arcstats arcstats = { 0 }; + +void generate_charts_arcstats(const char *plugin, const char *module, int update_every) { + + // ARC reads + unsigned long long aread = arcstats.hits + arcstats.misses; + + // Demand reads + unsigned long long dhit = arcstats.demand_data_hits + arcstats.demand_metadata_hits; + unsigned long long dmiss = arcstats.demand_data_misses + arcstats.demand_metadata_misses; + unsigned long long dread = dhit + dmiss; + + // Prefetch reads + unsigned long long phit = arcstats.prefetch_data_hits + arcstats.prefetch_metadata_hits; + unsigned long long pmiss = arcstats.prefetch_data_misses + arcstats.prefetch_metadata_misses; + unsigned long long pread = phit + pmiss; + + // Metadata reads + unsigned long long mhit = arcstats.prefetch_metadata_hits + arcstats.demand_metadata_hits; + unsigned long long mmiss = arcstats.prefetch_metadata_misses + arcstats.demand_metadata_misses; + unsigned long long mread = mhit + mmiss; + + // l2 reads + unsigned long long l2hit = arcstats.l2_hits; + unsigned long long l2miss = arcstats.l2_misses; + unsigned long long l2read = l2hit + l2miss; + + // -------------------------------------------------------------------- + + { + static RRDSET *st_arc_size = NULL; + static RRDDIM *rd_arc_size = NULL; + static RRDDIM *rd_arc_target_size = NULL; + static RRDDIM *rd_arc_target_min_size = NULL; + static RRDDIM *rd_arc_target_max_size = NULL; + + if (unlikely(!st_arc_size)) { + st_arc_size = rrdset_create_localhost( + "zfs" + , "arc_size" + , NULL + , ZFS_FAMILY_SIZE + , NULL + , "ZFS ARC Size" + , "MB" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_ARC_SIZE + , update_every + , RRDSET_TYPE_AREA + ); + + rd_arc_size = rrddim_add(st_arc_size, "size", "arcsz", 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rd_arc_target_size = rrddim_add(st_arc_size, "target", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rd_arc_target_min_size = rrddim_add(st_arc_size, "min", "min (hard limit)", 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rd_arc_target_max_size = rrddim_add(st_arc_size, "max", "max (high water)", 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + } + else + rrdset_next(st_arc_size); + + rrddim_set_by_pointer(st_arc_size, rd_arc_size, arcstats.size); + rrddim_set_by_pointer(st_arc_size, rd_arc_target_size, arcstats.c); + rrddim_set_by_pointer(st_arc_size, rd_arc_target_min_size, arcstats.c_min); + rrddim_set_by_pointer(st_arc_size, rd_arc_target_max_size, arcstats.c_max); + rrdset_done(st_arc_size); + } + + // -------------------------------------------------------------------- + + if(likely(arcstats.l2exist)) { + static RRDSET *st_l2_size = NULL; + static RRDDIM *rd_l2_size = NULL; + static RRDDIM *rd_l2_asize = NULL; + + if (unlikely(!st_l2_size)) { + st_l2_size = rrdset_create_localhost( + "zfs" + , "l2_size" + , NULL + , ZFS_FAMILY_SIZE + , NULL + , "ZFS L2 ARC Size" + , "MB" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_L2_SIZE + , update_every + , RRDSET_TYPE_AREA + ); + + rd_l2_asize = rrddim_add(st_l2_size, "actual", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rd_l2_size = rrddim_add(st_l2_size, "size", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + } + else + rrdset_next(st_l2_size); + + rrddim_set_by_pointer(st_l2_size, rd_l2_size, arcstats.l2_size); + rrddim_set_by_pointer(st_l2_size, rd_l2_asize, arcstats.l2_asize); + rrdset_done(st_l2_size); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_reads = NULL; + static RRDDIM *rd_aread = NULL; + static RRDDIM *rd_dread = NULL; + static RRDDIM *rd_pread = NULL; + static RRDDIM *rd_mread = NULL; + static RRDDIM *rd_l2read = NULL; + + if (unlikely(!st_reads)) { + st_reads = rrdset_create_localhost( + "zfs" + , "reads" + , NULL + , ZFS_FAMILY_ACCESSES + , NULL + , "ZFS Reads" + , "reads/s" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_READS + , update_every + , RRDSET_TYPE_AREA + ); + + rd_aread = rrddim_add(st_reads, "areads", "arc", 1, 1, RRD_ALGORITHM_INCREMENTAL); + rd_dread = rrddim_add(st_reads, "dreads", "demand", 1, 1, RRD_ALGORITHM_INCREMENTAL); + rd_pread = rrddim_add(st_reads, "preads", "prefetch", 1, 1, RRD_ALGORITHM_INCREMENTAL); + rd_mread = rrddim_add(st_reads, "mreads", "metadata", 1, 1, RRD_ALGORITHM_INCREMENTAL); + + if(arcstats.l2exist) + rd_l2read = rrddim_add(st_reads, "l2reads", "l2", 1, 1, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(st_reads); + + rrddim_set_by_pointer(st_reads, rd_aread, aread); + rrddim_set_by_pointer(st_reads, rd_dread, dread); + rrddim_set_by_pointer(st_reads, rd_pread, pread); + rrddim_set_by_pointer(st_reads, rd_mread, mread); + + if(arcstats.l2exist) + rrddim_set_by_pointer(st_reads, rd_l2read, l2read); + + rrdset_done(st_reads); + } + + // -------------------------------------------------------------------- + + if(likely(arcstats.l2exist)) { + static RRDSET *st_l2bytes = NULL; + static RRDDIM *rd_l2_read_bytes = NULL; + static RRDDIM *rd_l2_write_bytes = NULL; + + if (unlikely(!st_l2bytes)) { + st_l2bytes = rrdset_create_localhost( + "zfs" + , "bytes" + , NULL + , ZFS_FAMILY_ACCESSES + , NULL + , "ZFS ARC L2 Read/Write Rate" + , "kilobytes/s" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_IO + , update_every + , RRDSET_TYPE_AREA + ); + + rd_l2_read_bytes = rrddim_add(st_l2bytes, "read", NULL, 1, 1024, RRD_ALGORITHM_INCREMENTAL); + rd_l2_write_bytes = rrddim_add(st_l2bytes, "write", NULL, -1, 1024, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(st_l2bytes); + + rrddim_set_by_pointer(st_l2bytes, rd_l2_read_bytes, arcstats.l2_read_bytes); + rrddim_set_by_pointer(st_l2bytes, rd_l2_write_bytes, arcstats.l2_write_bytes); + rrdset_done(st_l2bytes); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_ahits = NULL; + static RRDDIM *rd_ahits = NULL; + static RRDDIM *rd_amisses = NULL; + + if (unlikely(!st_ahits)) { + st_ahits = rrdset_create_localhost( + "zfs" + , "hits" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS ARC Hits" + , "percentage" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_HITS + , update_every + , RRDSET_TYPE_STACKED + ); + + rd_ahits = rrddim_add(st_ahits, "hits", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + rd_amisses = rrddim_add(st_ahits, "misses", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + } + else + rrdset_next(st_ahits); + + rrddim_set_by_pointer(st_ahits, rd_ahits, arcstats.hits); + rrddim_set_by_pointer(st_ahits, rd_amisses, arcstats.misses); + rrdset_done(st_ahits); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_dhits = NULL; + static RRDDIM *rd_dhits = NULL; + static RRDDIM *rd_dmisses = NULL; + + if (unlikely(!st_dhits)) { + st_dhits = rrdset_create_localhost( + "zfs" + , "dhits" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS Demand Hits" + , "percentage" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_DHITS + , update_every + , RRDSET_TYPE_STACKED + ); + + rd_dhits = rrddim_add(st_dhits, "hits", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + rd_dmisses = rrddim_add(st_dhits, "misses", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + } + else + rrdset_next(st_dhits); + + rrddim_set_by_pointer(st_dhits, rd_dhits, dhit); + rrddim_set_by_pointer(st_dhits, rd_dmisses, dmiss); + rrdset_done(st_dhits); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_phits = NULL; + static RRDDIM *rd_phits = NULL; + static RRDDIM *rd_pmisses = NULL; + + if (unlikely(!st_phits)) { + st_phits = rrdset_create_localhost( + "zfs" + , "phits" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS Prefetch Hits" + , "percentage" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_PHITS + , update_every + , RRDSET_TYPE_STACKED + ); + + rd_phits = rrddim_add(st_phits, "hits", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + rd_pmisses = rrddim_add(st_phits, "misses", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + } + else + rrdset_next(st_phits); + + rrddim_set_by_pointer(st_phits, rd_phits, phit); + rrddim_set_by_pointer(st_phits, rd_pmisses, pmiss); + rrdset_done(st_phits); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_mhits = NULL; + static RRDDIM *rd_mhits = NULL; + static RRDDIM *rd_mmisses = NULL; + + if (unlikely(!st_mhits)) { + st_mhits = rrdset_create_localhost( + "zfs" + , "mhits" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS Metadata Hits" + , "percentage" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_MHITS + , update_every + , RRDSET_TYPE_STACKED + ); + + rd_mhits = rrddim_add(st_mhits, "hits", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + rd_mmisses = rrddim_add(st_mhits, "misses", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + } + else + rrdset_next(st_mhits); + + rrddim_set_by_pointer(st_mhits, rd_mhits, mhit); + rrddim_set_by_pointer(st_mhits, rd_mmisses, mmiss); + rrdset_done(st_mhits); + } + + // -------------------------------------------------------------------- + + if(likely(arcstats.l2exist)) { + static RRDSET *st_l2hits = NULL; + static RRDDIM *rd_l2hits = NULL; + static RRDDIM *rd_l2misses = NULL; + + if (unlikely(!st_l2hits)) { + st_l2hits = rrdset_create_localhost( + "zfs" + , "l2hits" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS L2 Hits" + , "percentage" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_L2HITS + , update_every + , RRDSET_TYPE_STACKED + ); + + rd_l2hits = rrddim_add(st_l2hits, "hits", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + rd_l2misses = rrddim_add(st_l2hits, "misses", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + } + else + rrdset_next(st_l2hits); + + rrddim_set_by_pointer(st_l2hits, rd_l2hits, l2hit); + rrddim_set_by_pointer(st_l2hits, rd_l2misses, l2miss); + rrdset_done(st_l2hits); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_list_hits = NULL; + static RRDDIM *rd_mfu = NULL; + static RRDDIM *rd_mru = NULL; + static RRDDIM *rd_mfug = NULL; + static RRDDIM *rd_mrug = NULL; + + if (unlikely(!st_list_hits)) { + st_list_hits = rrdset_create_localhost( + "zfs" + , "list_hits" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS List Hits" + , "hits/s" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_LIST_HITS + , update_every + , RRDSET_TYPE_AREA + ); + + rd_mfu = rrddim_add(st_list_hits, "mfu", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + rd_mfug = rrddim_add(st_list_hits, "mfug", "mfu ghost", 1, 1, RRD_ALGORITHM_INCREMENTAL); + rd_mru = rrddim_add(st_list_hits, "mru", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + rd_mrug = rrddim_add(st_list_hits, "mrug", "mru ghost", 1, 1, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(st_list_hits); + + rrddim_set_by_pointer(st_list_hits, rd_mfu, arcstats.mfu_hits); + rrddim_set_by_pointer(st_list_hits, rd_mru, arcstats.mru_hits); + rrddim_set_by_pointer(st_list_hits, rd_mfug, arcstats.mfu_ghost_hits); + rrddim_set_by_pointer(st_list_hits, rd_mrug, arcstats.mru_ghost_hits); + rrdset_done(st_list_hits); + } +} + +void generate_charts_arc_summary(const char *plugin, const char *module, int update_every) { + unsigned long long arc_accesses_total = arcstats.hits + arcstats.misses; + unsigned long long real_hits = arcstats.mfu_hits + arcstats.mru_hits; + unsigned long long real_misses = arc_accesses_total - real_hits; + + //unsigned long long anon_hits = arcstats.hits - (arcstats.mfu_hits + arcstats.mru_hits + arcstats.mfu_ghost_hits + arcstats.mru_ghost_hits); + + unsigned long long arc_size = arcstats.size; + unsigned long long mru_size = arcstats.p; + //unsigned long long target_min_size = arcstats.c_min; + //unsigned long long target_max_size = arcstats.c_max; + unsigned long long target_size = arcstats.c; + //unsigned long long target_size_ratio = (target_max_size / target_min_size); + + unsigned long long mfu_size; + if(arc_size > target_size) + mfu_size = arc_size - mru_size; + else + mfu_size = target_size - mru_size; + + // -------------------------------------------------------------------- + + { + static RRDSET *st_arc_size_breakdown = NULL; + static RRDDIM *rd_most_recent = NULL; + static RRDDIM *rd_most_frequent = NULL; + + if (unlikely(!st_arc_size_breakdown)) { + st_arc_size_breakdown = rrdset_create_localhost( + "zfs" + , "arc_size_breakdown" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS ARC Size Breakdown" + , "percentage" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_ARC_SIZE_BREAKDOWN + , update_every + , RRDSET_TYPE_STACKED + ); + + rd_most_recent = rrddim_add(st_arc_size_breakdown, "recent", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL); + rd_most_frequent = rrddim_add(st_arc_size_breakdown, "frequent", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL); + } + else + rrdset_next(st_arc_size_breakdown); + + rrddim_set_by_pointer(st_arc_size_breakdown, rd_most_recent, mru_size); + rrddim_set_by_pointer(st_arc_size_breakdown, rd_most_frequent, mfu_size); + rrdset_done(st_arc_size_breakdown); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_memory = NULL; +#ifndef __FreeBSD__ + static RRDDIM *rd_direct = NULL; +#endif + static RRDDIM *rd_throttled = NULL; +#ifndef __FreeBSD__ + static RRDDIM *rd_indirect = NULL; +#endif + + if (unlikely(!st_memory)) { + st_memory = rrdset_create_localhost( + "zfs" + , "memory_ops" + , NULL + , ZFS_FAMILY_OPERATIONS + , NULL + , "ZFS Memory Operations" + , "operations/s" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_MEMORY_OPS + , update_every + , RRDSET_TYPE_LINE + ); + +#ifndef __FreeBSD__ + rd_direct = rrddim_add(st_memory, "direct", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); +#endif + rd_throttled = rrddim_add(st_memory, "throttled", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); +#ifndef __FreeBSD__ + rd_indirect = rrddim_add(st_memory, "indirect", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); +#endif + } + else + rrdset_next(st_memory); + +#ifndef __FreeBSD__ + rrddim_set_by_pointer(st_memory, rd_direct, arcstats.memory_direct_count); +#endif + rrddim_set_by_pointer(st_memory, rd_throttled, arcstats.memory_throttle_count); +#ifndef __FreeBSD__ + rrddim_set_by_pointer(st_memory, rd_indirect, arcstats.memory_indirect_count); +#endif + rrdset_done(st_memory); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_important_ops = NULL; + static RRDDIM *rd_deleted = NULL; + static RRDDIM *rd_mutex_misses = NULL; + static RRDDIM *rd_evict_skips = NULL; + static RRDDIM *rd_hash_collisions = NULL; + + if (unlikely(!st_important_ops)) { + st_important_ops = rrdset_create_localhost( + "zfs" + , "important_ops" + , NULL + , ZFS_FAMILY_OPERATIONS + , NULL + , "ZFS Important Operations" + , "operations/s" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_IMPORTANT_OPS + , update_every + , RRDSET_TYPE_LINE + ); + + rd_evict_skips = rrddim_add(st_important_ops, "eskip", "evict skip", 1, 1, RRD_ALGORITHM_INCREMENTAL); + rd_deleted = rrddim_add(st_important_ops, "deleted", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + rd_mutex_misses = rrddim_add(st_important_ops, "mtxmis", "mutex miss", 1, 1, RRD_ALGORITHM_INCREMENTAL); + rd_hash_collisions = rrddim_add(st_important_ops, "hash_collisions", "hash collisions", 1, 1, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(st_important_ops); + + rrddim_set_by_pointer(st_important_ops, rd_deleted, arcstats.deleted); + rrddim_set_by_pointer(st_important_ops, rd_evict_skips, arcstats.evict_skip); + rrddim_set_by_pointer(st_important_ops, rd_mutex_misses, arcstats.mutex_miss); + rrddim_set_by_pointer(st_important_ops, rd_hash_collisions, arcstats.hash_collisions); + rrdset_done(st_important_ops); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_actual_hits = NULL; + static RRDDIM *rd_actual_hits = NULL; + static RRDDIM *rd_actual_misses = NULL; + + if (unlikely(!st_actual_hits)) { + st_actual_hits = rrdset_create_localhost( + "zfs" + , "actual_hits" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS Actual Cache Hits" + , "percentage" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_ACTUAL_HITS + , update_every + , RRDSET_TYPE_STACKED + ); + + rd_actual_hits = rrddim_add(st_actual_hits, "hits", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + rd_actual_misses = rrddim_add(st_actual_hits, "misses", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + } + else + rrdset_next(st_actual_hits); + + rrddim_set_by_pointer(st_actual_hits, rd_actual_hits, real_hits); + rrddim_set_by_pointer(st_actual_hits, rd_actual_misses, real_misses); + rrdset_done(st_actual_hits); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_demand_data_hits = NULL; + static RRDDIM *rd_demand_data_hits = NULL; + static RRDDIM *rd_demand_data_misses = NULL; + + if (unlikely(!st_demand_data_hits)) { + st_demand_data_hits = rrdset_create_localhost( + "zfs" + , "demand_data_hits" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS Data Demand Efficiency" + , "percentage" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_DEMAND_DATA_HITS + , update_every + , RRDSET_TYPE_STACKED + ); + + rd_demand_data_hits = rrddim_add(st_demand_data_hits, "hits", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + rd_demand_data_misses = rrddim_add(st_demand_data_hits, "misses", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + } + else + rrdset_next(st_demand_data_hits); + + rrddim_set_by_pointer(st_demand_data_hits, rd_demand_data_hits, arcstats.demand_data_hits); + rrddim_set_by_pointer(st_demand_data_hits, rd_demand_data_misses, arcstats.demand_data_misses); + rrdset_done(st_demand_data_hits); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_prefetch_data_hits = NULL; + static RRDDIM *rd_prefetch_data_hits = NULL; + static RRDDIM *rd_prefetch_data_misses = NULL; + + if (unlikely(!st_prefetch_data_hits)) { + st_prefetch_data_hits = rrdset_create_localhost( + "zfs" + , "prefetch_data_hits" + , NULL + , ZFS_FAMILY_EFFICIENCY + , NULL + , "ZFS Data Prefetch Efficiency" + , "percentage" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_PREFETCH_DATA_HITS + , update_every + , RRDSET_TYPE_STACKED + ); + + rd_prefetch_data_hits = rrddim_add(st_prefetch_data_hits, "hits", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + rd_prefetch_data_misses = rrddim_add(st_prefetch_data_hits, "misses", NULL, 1, 1, RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL); + } + else + rrdset_next(st_prefetch_data_hits); + + rrddim_set_by_pointer(st_prefetch_data_hits, rd_prefetch_data_hits, arcstats.prefetch_data_hits); + rrddim_set_by_pointer(st_prefetch_data_hits, rd_prefetch_data_misses, arcstats.prefetch_data_misses); + rrdset_done(st_prefetch_data_hits); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_hash_elements = NULL; + static RRDDIM *rd_hash_elements_current = NULL; + static RRDDIM *rd_hash_elements_max = NULL; + + if (unlikely(!st_hash_elements)) { + st_hash_elements = rrdset_create_localhost( + "zfs" + , "hash_elements" + , NULL + , ZFS_FAMILY_HASH + , NULL + , "ZFS ARC Hash Elements" + , "elements" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_HASH_ELEMENTS + , update_every + , RRDSET_TYPE_LINE + ); + + rd_hash_elements_current = rrddim_add(st_hash_elements, "current", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); + rd_hash_elements_max = rrddim_add(st_hash_elements, "max", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); + } + else + rrdset_next(st_hash_elements); + + rrddim_set_by_pointer(st_hash_elements, rd_hash_elements_current, arcstats.hash_elements); + rrddim_set_by_pointer(st_hash_elements, rd_hash_elements_max, arcstats.hash_elements_max); + rrdset_done(st_hash_elements); + } + + // -------------------------------------------------------------------- + + { + static RRDSET *st_hash_chains = NULL; + static RRDDIM *rd_hash_chains_current = NULL; + static RRDDIM *rd_hash_chains_max = NULL; + + if (unlikely(!st_hash_chains)) { + st_hash_chains = rrdset_create_localhost( + "zfs" + , "hash_chains" + , NULL + , ZFS_FAMILY_HASH + , NULL + , "ZFS ARC Hash Chains" + , "chains" + , plugin + , module + , NETDATA_CHART_PRIO_ZFS_HASH_CHAINS + , update_every + , RRDSET_TYPE_LINE + ); + + rd_hash_chains_current = rrddim_add(st_hash_chains, "current", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); + rd_hash_chains_max = rrddim_add(st_hash_chains, "max", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); + } + else + rrdset_next(st_hash_chains); + + rrddim_set_by_pointer(st_hash_chains, rd_hash_chains_current, arcstats.hash_chains); + rrddim_set_by_pointer(st_hash_chains, rd_hash_chains_max, arcstats.hash_chain_max); + rrdset_done(st_hash_chains); + } + + // -------------------------------------------------------------------- + +}
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