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Force all lines to be 80 columns 

Ensure this script conforms to the projects style guidelines
by limiting line length to 80 columns.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Kyle Blatter <kyleblatter@llnl.gov>
Signed-off-by: Ned Bass <bass6@llnl.gov>
This commit is contained in:
Kyle Blatter 2015-01-13 10:28:55 -08:00 committed by Brian Behlendorf
parent 6427f39fe0
commit 65dc685a1d
1 changed files with 66 additions and 33 deletions
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99
cmd/arc_summary/arc_summary.py
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@ -83,9 +83,12 @@ def get_Kstat():
"vfs.zfs" "vfs.zfs"
] ]
Kstat = {} Kstat = {}
load_proc_kstats('/proc/spl/kstat/zfs/arcstats', 'kstat.zfs.misc.arcstats.') load_proc_kstats('/proc/spl/kstat/zfs/arcstats',
load_proc_kstats('/proc/spl/kstat/zfs/zfetchstats', 'kstat.zfs.misc.zfetchstats.') 'kstat.zfs.misc.arcstats.')
load_proc_kstats('/proc/spl/kstat/zfs/vdev_cache_stats', 'kstat.zfs.misc.vdev_cache_stats.') 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 return Kstat
@ -292,15 +295,19 @@ def _arc_summary(Kstat):
sys.stdout.write("ARC Summary: (%s)\n" % arc['health']) 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") sys.stdout.write("\n")
### ARC Misc. ### ### ARC Misc. ###
sys.stdout.write("ARC Misc:\n") sys.stdout.write("ARC Misc:\n")
sys.stdout.write("\tDeleted:\t\t\t\t%s\n" % arc['arc_misc']['deleted']) 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("\tRecycle Misses:\t\t\t\t%s\n" %
sys.stdout.write("\tMutex Misses:\t\t\t\t%s\n" % arc['arc_misc']['mutex_miss']) arc['arc_misc']['recycle_miss'])
sys.stdout.write("\tEvict Skips:\t\t\t\t%s\n" % arc['arc_misc']['mutex_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") sys.stdout.write("\n")
### ARC Sizing ### ### ARC Sizing ###
@ -343,15 +350,19 @@ def _arc_summary(Kstat):
### ARC Hash Breakdown ### ### ARC Hash Breakdown ###
sys.stdout.write("ARC Hash Breakdown:\n") 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" % ( sys.stdout.write("\tElements Current:\t\t%s\t%s\n" % (
arc['arc_hash_break']['elements_current']['per'], arc['arc_hash_break']['elements_current']['per'],
arc['arc_hash_break']['elements_current']['num'], 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("\tCollisions:\t\t\t\t%s\n" %
sys.stdout.write("\tChain Max:\t\t\t\t%s\n" % arc['arc_hash_break']['chain_max']) arc['arc_hash_break']['collisions'])
sys.stdout.write("\tChains:\t\t\t\t\t%s\n" % arc['arc_hash_break']['chains']) 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): def get_arc_efficiency(Kstat):
@ -480,7 +491,8 @@ def get_arc_efficiency(Kstat):
def _arc_efficiency(Kstat): def _arc_efficiency(Kstat):
arc = get_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" % ( sys.stdout.write("\tCache Hit Ratio:\t\t%s\t%s\n" % (
arc['cache_hit_ratio']['per'], arc['cache_hit_ratio']['per'],
arc['cache_hit_ratio']['num'], arc['cache_hit_ratio']['num'],
@ -690,14 +702,16 @@ def _l2arc_summary(Kstat):
sys.stdout.write("(DEGRADED)\n") sys.stdout.write("(DEGRADED)\n")
else: else:
sys.stdout.write("(HEALTHY)\n") 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("\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("\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("\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("\tIO Errors:\t\t\t\t%s\n" % arc['io_errors'])
sys.stdout.write("\n") 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" % ( sys.stdout.write("\tCompressed:\t\t\t%s\t%s\n" % (
arc["l2_arc_size"]["actual"]["per"], arc["l2_arc_size"]["actual"]["per"],
arc["l2_arc_size"]["actual"]["num"], arc["l2_arc_size"]["actual"]["num"],
@ -710,13 +724,17 @@ def _l2arc_summary(Kstat):
) )
sys.stdout.write("\n") 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("L2 ARC Evicts:\n")
sys.stdout.write("\tLock Retries:\t\t\t\t%s\n" % arc["l2_arc_evicts"]['lock_retries']) sys.stdout.write("\tLock Retries:\t\t\t\t%s\n" %
sys.stdout.write("\tUpon Reading:\t\t\t\t%s\n" % arc["l2_arc_evicts"]["reading"]) 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("\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" % ( 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']['per'],
arc['l2_arc_breakdown']['hit_ratio']['num'], 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("\n")
sys.stdout.write("L2 ARC Writes:\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_bogus_streams = Kstat["kstat.zfs.misc.zfetchstats.bogus_streams"]
zfetch_colinear_hits = Kstat["kstat.zfs.misc.zfetchstats.colinear_hits"] 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_hits = Kstat["kstat.zfs.misc.zfetchstats.hits"]
zfetch_misses = Kstat["kstat.zfs.misc.zfetchstats.misses"] zfetch_misses = Kstat["kstat.zfs.misc.zfetchstats.misses"]
zfetch_reclaim_failures = Kstat["kstat.zfs.misc.zfetchstats.reclaim_failures"] zfetch_reclaim_failures = \
zfetch_reclaim_successes = Kstat["kstat.zfs.misc.zfetchstats.reclaim_successes"] Kstat["kstat.zfs.misc.zfetchstats.reclaim_failures"]
zfetch_streams_noresets = Kstat["kstat.zfs.misc.zfetchstats.streams_noresets"] 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_streams_resets = Kstat["kstat.zfs.misc.zfetchstats.streams_resets"]
zfetch_stride_hits = Kstat["kstat.zfs.misc.zfetchstats.stride_hits"] zfetch_stride_hits = Kstat["kstat.zfs.misc.zfetchstats.stride_hits"]
zfetch_stride_misses = Kstat["kstat.zfs.misc.zfetchstats.stride_misses"] 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_colinear_total = (zfetch_colinear_hits + zfetch_colinear_misses)
zfetch_health_count = (zfetch_bogus_streams) zfetch_health_count = (zfetch_bogus_streams)
zfetch_reclaim_total = (zfetch_reclaim_successes + zfetch_reclaim_failures) 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) zfetch_stride_total = (zfetch_stride_hits + zfetch_stride_misses)
output['zfetch_access_total'] = zfetch_access_total output['zfetch_access_total'] = zfetch_access_total
@ -859,10 +883,12 @@ def _dmu_summary(Kstat):
arc = get_dmu_summary(Kstat) arc = get_dmu_summary(Kstat)
if arc['zfetch_access_total'] > 0: 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("\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" % ( sys.stdout.write("\tHit Ratio:\t\t\t%s\t%s\n" % (
arc['dmu']['efficiency']['hit_ratio']['per'], arc['dmu']['efficiency']['hit_ratio']['per'],
arc['dmu']['efficiency']['hit_ratio']['num'], arc['dmu']['efficiency']['hit_ratio']['num'],
@ -876,7 +902,8 @@ def _dmu_summary(Kstat):
sys.stdout.write("\n") 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" % ( sys.stdout.write("\t Hit Ratio:\t\t\t%s\t%s\n" % (
arc['dmu']['colinear']['hit_ratio']['per'], arc['dmu']['colinear']['hit_ratio']['per'],
arc['dmu']['colinear']['hit_ratio']['num'], arc['dmu']['colinear']['hit_ratio']['num'],
@ -891,7 +918,8 @@ def _dmu_summary(Kstat):
sys.stdout.write("\n") 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" % ( sys.stdout.write("\t Hit Ratio:\t\t\t%s\t%s\n" % (
arc['dmu']['stride']['hit_ratio']['per'], arc['dmu']['stride']['hit_ratio']['per'],
arc['dmu']['stride']['hit_ratio']['num'], arc['dmu']['stride']['hit_ratio']['num'],
@ -907,7 +935,8 @@ def _dmu_summary(Kstat):
sys.stdout.write("\n") sys.stdout.write("\n")
sys.stdout.write("DMU Misc: %s\n" % arc['dmu_misc']['status']) 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" % ( sys.stdout.write("\t Successes:\t\t\t%s\t%s\n" % (
arc['dmu_misc']['reclaim']['successes']['per'], arc['dmu_misc']['reclaim']['successes']['per'],
arc['dmu_misc']['reclaim']['successes']['num'], 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" % ( 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']['per'],
arc['dmu_misc']['streams']['plus_resets']['num'], 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): def get_vdev_summary(Kstat):
output = {} 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_misses = Kstat["kstat.zfs.misc.vdev_cache_stats.misses"]
vdev_cache_hits = Kstat["kstat.zfs.misc.vdev_cache_stats.hits"] 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 output['vdev_cache_total'] = vdev_cache_total