diff options
| -rwxr-xr-x | cmd/arc_summary/arc_summary.py | 99 |
1 files changed, 66 insertions, 33 deletions
diff --git a/cmd/arc_summary/arc_summary.py b/cmd/arc_summary/arc_summary.py index 2d76df82d..bf84ca446 100755 --- a/cmd/arc_summary/arc_summary.py +++ b/cmd/arc_summary/arc_summary.py @@ -83,9 +83,12 @@ def get_Kstat(): "vfs.zfs" ] Kstat = {} - load_proc_kstats('/proc/spl/kstat/zfs/arcstats', 'kstat.zfs.misc.arcstats.') - load_proc_kstats('/proc/spl/kstat/zfs/zfetchstats', 'kstat.zfs.misc.zfetchstats.') - load_proc_kstats('/proc/spl/kstat/zfs/vdev_cache_stats', 'kstat.zfs.misc.vdev_cache_stats.') + load_proc_kstats('/proc/spl/kstat/zfs/arcstats', + 'kstat.zfs.misc.arcstats.') + load_proc_kstats('/proc/spl/kstat/zfs/zfetchstats', + 'kstat.zfs.misc.zfetchstats.') + load_proc_kstats('/proc/spl/kstat/zfs/vdev_cache_stats', + 'kstat.zfs.misc.vdev_cache_stats.') return Kstat @@ -292,15 +295,19 @@ def _arc_summary(Kstat): sys.stdout.write("ARC Summary: (%s)\n" % arc['health']) - sys.stdout.write("\tMemory Throttle Count:\t\t\t%s\n" % arc['memory_throttle_count']) + sys.stdout.write("\tMemory Throttle Count:\t\t\t%s\n" % + arc['memory_throttle_count']) sys.stdout.write("\n") ### ARC Misc. ### sys.stdout.write("ARC Misc:\n") sys.stdout.write("\tDeleted:\t\t\t\t%s\n" % arc['arc_misc']['deleted']) - sys.stdout.write("\tRecycle Misses:\t\t\t\t%s\n" % arc['arc_misc']['recycle_miss']) - sys.stdout.write("\tMutex Misses:\t\t\t\t%s\n" % arc['arc_misc']['mutex_miss']) - sys.stdout.write("\tEvict Skips:\t\t\t\t%s\n" % arc['arc_misc']['mutex_miss']) + sys.stdout.write("\tRecycle Misses:\t\t\t\t%s\n" % + arc['arc_misc']['recycle_miss']) + sys.stdout.write("\tMutex Misses:\t\t\t\t%s\n" % + arc['arc_misc']['mutex_miss']) + sys.stdout.write("\tEvict Skips:\t\t\t\t%s\n" % + arc['arc_misc']['mutex_miss']) sys.stdout.write("\n") ### ARC Sizing ### @@ -343,15 +350,19 @@ def _arc_summary(Kstat): ### ARC Hash Breakdown ### sys.stdout.write("ARC Hash Breakdown:\n") - sys.stdout.write("\tElements Max:\t\t\t\t%s\n" % arc['arc_hash_break']['elements_max']) + sys.stdout.write("\tElements Max:\t\t\t\t%s\n" % + arc['arc_hash_break']['elements_max']) sys.stdout.write("\tElements Current:\t\t%s\t%s\n" % ( arc['arc_hash_break']['elements_current']['per'], arc['arc_hash_break']['elements_current']['num'], ) ) - sys.stdout.write("\tCollisions:\t\t\t\t%s\n" % arc['arc_hash_break']['collisions']) - sys.stdout.write("\tChain Max:\t\t\t\t%s\n" % arc['arc_hash_break']['chain_max']) - sys.stdout.write("\tChains:\t\t\t\t\t%s\n" % arc['arc_hash_break']['chains']) + sys.stdout.write("\tCollisions:\t\t\t\t%s\n" % + arc['arc_hash_break']['collisions']) + sys.stdout.write("\tChain Max:\t\t\t\t%s\n" % + arc['arc_hash_break']['chain_max']) + sys.stdout.write("\tChains:\t\t\t\t\t%s\n" % + arc['arc_hash_break']['chains']) def get_arc_efficiency(Kstat): @@ -480,7 +491,8 @@ def get_arc_efficiency(Kstat): def _arc_efficiency(Kstat): arc = get_arc_efficiency(Kstat) - sys.stdout.write("ARC Total accesses:\t\t\t\t\t%s\n" % arc['total_accesses']) + sys.stdout.write("ARC Total accesses:\t\t\t\t\t%s\n" % + arc['total_accesses']) sys.stdout.write("\tCache Hit Ratio:\t\t%s\t%s\n" % ( arc['cache_hit_ratio']['per'], arc['cache_hit_ratio']['num'], @@ -690,14 +702,16 @@ def _l2arc_summary(Kstat): sys.stdout.write("(DEGRADED)\n") else: sys.stdout.write("(HEALTHY)\n") - sys.stdout.write("\tLow Memory Aborts:\t\t\t%s\n" % arc['low_memory_aborts']) + sys.stdout.write("\tLow Memory Aborts:\t\t\t%s\n" % + arc['low_memory_aborts']) sys.stdout.write("\tFree on Write:\t\t\t\t%s\n" % arc['free_on_write']) sys.stdout.write("\tR/W Clashes:\t\t\t\t%s\n" % arc['rw_clashes']) sys.stdout.write("\tBad Checksums:\t\t\t\t%s\n" % arc['bad_checksums']) sys.stdout.write("\tIO Errors:\t\t\t\t%s\n" % arc['io_errors']) sys.stdout.write("\n") - sys.stdout.write("L2 ARC Size: (Adaptive)\t\t\t\t%s\n" % arc["l2_arc_size"]["adative"]) + sys.stdout.write("L2 ARC Size: (Adaptive)\t\t\t\t%s\n" % + arc["l2_arc_size"]["adative"]) sys.stdout.write("\tCompressed:\t\t\t%s\t%s\n" % ( arc["l2_arc_size"]["actual"]["per"], arc["l2_arc_size"]["actual"]["num"], @@ -710,13 +724,17 @@ def _l2arc_summary(Kstat): ) sys.stdout.write("\n") - if arc["l2_arc_evicts"]['lock_retries'] + arc["l2_arc_evicts"]["reading"] > 0: + if arc["l2_arc_evicts"]['lock_retries'] + \ + arc["l2_arc_evicts"]["reading"] > 0: sys.stdout.write("L2 ARC Evicts:\n") - sys.stdout.write("\tLock Retries:\t\t\t\t%s\n" % arc["l2_arc_evicts"]['lock_retries']) - sys.stdout.write("\tUpon Reading:\t\t\t\t%s\n" % arc["l2_arc_evicts"]["reading"]) + sys.stdout.write("\tLock Retries:\t\t\t\t%s\n" % + arc["l2_arc_evicts"]['lock_retries']) + sys.stdout.write("\tUpon Reading:\t\t\t\t%s\n" % + arc["l2_arc_evicts"]["reading"]) sys.stdout.write("\n") - sys.stdout.write("L2 ARC Breakdown:\t\t\t\t%s\n" % arc['l2_arc_breakdown']['value']) + sys.stdout.write("L2 ARC Breakdown:\t\t\t\t%s\n" % + arc['l2_arc_breakdown']['value']) sys.stdout.write("\tHit Ratio:\t\t\t%s\t%s\n" % ( arc['l2_arc_breakdown']['hit_ratio']['per'], arc['l2_arc_breakdown']['hit_ratio']['num'], @@ -729,7 +747,8 @@ def _l2arc_summary(Kstat): ) ) - sys.stdout.write("\tFeeds:\t\t\t\t\t%s\n" % arc['l2_arc_breakdown']['feeds']) + sys.stdout.write("\tFeeds:\t\t\t\t\t%s\n" % + arc['l2_arc_breakdown']['feeds']) sys.stdout.write("\n") sys.stdout.write("L2 ARC Writes:\n") @@ -762,12 +781,16 @@ def get_dmu_summary(Kstat): zfetch_bogus_streams = Kstat["kstat.zfs.misc.zfetchstats.bogus_streams"] zfetch_colinear_hits = Kstat["kstat.zfs.misc.zfetchstats.colinear_hits"] - zfetch_colinear_misses = Kstat["kstat.zfs.misc.zfetchstats.colinear_misses"] + zfetch_colinear_misses = \ + Kstat["kstat.zfs.misc.zfetchstats.colinear_misses"] zfetch_hits = Kstat["kstat.zfs.misc.zfetchstats.hits"] zfetch_misses = Kstat["kstat.zfs.misc.zfetchstats.misses"] - zfetch_reclaim_failures = Kstat["kstat.zfs.misc.zfetchstats.reclaim_failures"] - zfetch_reclaim_successes = Kstat["kstat.zfs.misc.zfetchstats.reclaim_successes"] - zfetch_streams_noresets = Kstat["kstat.zfs.misc.zfetchstats.streams_noresets"] + zfetch_reclaim_failures = \ + Kstat["kstat.zfs.misc.zfetchstats.reclaim_failures"] + zfetch_reclaim_successes = \ + Kstat["kstat.zfs.misc.zfetchstats.reclaim_successes"] + zfetch_streams_noresets = \ + Kstat["kstat.zfs.misc.zfetchstats.streams_noresets"] zfetch_streams_resets = Kstat["kstat.zfs.misc.zfetchstats.streams_resets"] zfetch_stride_hits = Kstat["kstat.zfs.misc.zfetchstats.stride_hits"] zfetch_stride_misses = Kstat["kstat.zfs.misc.zfetchstats.stride_misses"] @@ -776,7 +799,8 @@ def get_dmu_summary(Kstat): zfetch_colinear_total = (zfetch_colinear_hits + zfetch_colinear_misses) zfetch_health_count = (zfetch_bogus_streams) zfetch_reclaim_total = (zfetch_reclaim_successes + zfetch_reclaim_failures) - zfetch_streams_total = (zfetch_streams_resets + zfetch_streams_noresets + zfetch_bogus_streams) + zfetch_streams_total = (zfetch_streams_resets + zfetch_streams_noresets + + zfetch_bogus_streams) zfetch_stride_total = (zfetch_stride_hits + zfetch_stride_misses) output['zfetch_access_total'] = zfetch_access_total @@ -859,10 +883,12 @@ def _dmu_summary(Kstat): arc = get_dmu_summary(Kstat) if arc['zfetch_access_total'] > 0: - sys.stdout.write("File-Level Prefetch: (%s)" % arc['file_level_prefetch']['health']) + sys.stdout.write("File-Level Prefetch: (%s)" % + arc['file_level_prefetch']['health']) sys.stdout.write("\n") - sys.stdout.write("DMU Efficiency:\t\t\t\t\t%s\n" % arc['dmu']['efficiency']['value']) + sys.stdout.write("DMU Efficiency:\t\t\t\t\t%s\n" % + arc['dmu']['efficiency']['value']) sys.stdout.write("\tHit Ratio:\t\t\t%s\t%s\n" % ( arc['dmu']['efficiency']['hit_ratio']['per'], arc['dmu']['efficiency']['hit_ratio']['num'], @@ -876,7 +902,8 @@ def _dmu_summary(Kstat): sys.stdout.write("\n") - sys.stdout.write("\tColinear:\t\t\t\t%s\n" % arc['dmu']['colinear']['value']) + sys.stdout.write("\tColinear:\t\t\t\t%s\n" % + arc['dmu']['colinear']['value']) sys.stdout.write("\t Hit Ratio:\t\t\t%s\t%s\n" % ( arc['dmu']['colinear']['hit_ratio']['per'], arc['dmu']['colinear']['hit_ratio']['num'], @@ -891,7 +918,8 @@ def _dmu_summary(Kstat): sys.stdout.write("\n") - sys.stdout.write("\tStride:\t\t\t\t\t%s\n" % arc['dmu']['stride']['value']) + sys.stdout.write("\tStride:\t\t\t\t\t%s\n" % + arc['dmu']['stride']['value']) sys.stdout.write("\t Hit Ratio:\t\t\t%s\t%s\n" % ( arc['dmu']['stride']['hit_ratio']['per'], arc['dmu']['stride']['hit_ratio']['num'], @@ -907,7 +935,8 @@ def _dmu_summary(Kstat): sys.stdout.write("\n") sys.stdout.write("DMU Misc: %s\n" % arc['dmu_misc']['status']) - sys.stdout.write("\tReclaim:\t\t\t\t%s\n" % arc['dmu_misc']['reclaim']['value']) + sys.stdout.write("\tReclaim:\t\t\t\t%s\n" % + arc['dmu_misc']['reclaim']['value']) sys.stdout.write("\t Successes:\t\t\t%s\t%s\n" % ( arc['dmu_misc']['reclaim']['successes']['per'], arc['dmu_misc']['reclaim']['successes']['num'], @@ -920,7 +949,8 @@ def _dmu_summary(Kstat): ) ) - sys.stdout.write("\n\tStreams:\t\t\t\t%s\n" % arc['dmu_misc']['streams']['value']) + sys.stdout.write("\n\tStreams:\t\t\t\t%s\n" % + arc['dmu_misc']['streams']['value']) sys.stdout.write("\t +Resets:\t\t\t%s\t%s\n" % ( arc['dmu_misc']['streams']['plus_resets']['per'], arc['dmu_misc']['streams']['plus_resets']['num'], @@ -933,16 +963,19 @@ def _dmu_summary(Kstat): ) ) - sys.stdout.write("\t Bogus:\t\t\t\t%s\n" % arc['dmu_misc']['streams']['bogus']) + sys.stdout.write("\t Bogus:\t\t\t\t%s\n" % + arc['dmu_misc']['streams']['bogus']) def get_vdev_summary(Kstat): output = {} - vdev_cache_delegations = Kstat["kstat.zfs.misc.vdev_cache_stats.delegations"] + vdev_cache_delegations = \ + Kstat["kstat.zfs.misc.vdev_cache_stats.delegations"] vdev_cache_misses = Kstat["kstat.zfs.misc.vdev_cache_stats.misses"] vdev_cache_hits = Kstat["kstat.zfs.misc.vdev_cache_stats.hits"] - vdev_cache_total = (vdev_cache_misses + vdev_cache_hits + vdev_cache_delegations) + vdev_cache_total = (vdev_cache_misses + vdev_cache_hits + + vdev_cache_delegations) output['vdev_cache_total'] = vdev_cache_total |