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Code Issues Releases Wiki Activity

plugin ksm_: various improvements

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* category can be parsed by plugin gallery
* python3 compatible
* more precise autoconf messages
* PEP8 clean
This commit is contained in:
Lars Kruse 2018-03-28 05:47:36 +02:00
parent 62df69c566
commit 8e3f1d8865
1 changed files with 64 additions and 57 deletions
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121
plugins/other/ksm_
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@ -19,67 +19,72 @@
# Magic markers - optional - used by installation scripts and
# munin-config:
#
#%# capabilities=autoconf suggest
#%# family=auto
###########################################################
category = 'system' # 'upgrades'
title = 'Kernel Samepage Merging' # 'Upgradeable packages'
###########################################################
# #%# capabilities=autoconf suggest
# #%# family=auto
import os
import sys
import warnings
import warnings # noqa
#################################
title = 'Kernel Samepage Merging'
#################################
def autoconf():
if os.path.exists('/sys/kernel/mm/ksm/run'):
for line in open('/sys/kernel/mm/ksm/run'):
if line.strip() == '1':
print 'yes'
sys.exit(0)
print 'no (/sys/kernel/mm/ksm/run must be present and value must be 1)'
print('yes')
break
else:
print('no (/sys/kernel/mm/ksm/run does not contain "1")')
else:
print('no (/sys/kernel/mm/ksm/run not found)')
sys.exit(0)
def suggest():
print 'pages_absolute'
print 'pages_relative'
print 'full_scans'
print('pages_absolute')
print('pages_relative')
print('full_scans')
sys.exit(0)
def config():
if('ksm_pages_absolute' in sys.argv[0]):
print 'graph_category %s' % (category)
print 'graph_title %s Pages Absolute' % (title)
print 'graph_order pages_unshared pages_volatile pages_shared pages_sharing'
print 'pages_shared.info how many shared pages are being used'
print 'pages_sharing.info how many more sites are sharing them i.e. how much saved'
print 'pages_unshared.info how many pages unique but repeatedly checked for merging'
print 'pages_volatile.info how many pages changing too fast to be placed in a tree'
print 'pages_shared.label pages_shared'
print 'pages_sharing.label pages_sharing'
print 'pages_unshared.label pages_unshared'
print 'pages_volatile.label pages_volatile'
print 'pages_shared.draw AREASTACK'
print 'pages_sharing.draw AREASTACK'
print 'pages_unshared.draw AREASTACK'
print 'pages_volatile.draw AREASTACK'
if('ksm_pages_absolute' in sys.argv[0]):
print('graph_category system')
print('graph_title %s Pages Absolute' % (title))
print('graph_order pages_unshared pages_volatile pages_shared pages_sharing')
print('pages_shared.info how many shared pages are being used')
print('pages_sharing.info how many more sites are sharing them i.e. how much saved')
print('pages_unshared.info how many pages unique but repeatedly checked for merging')
print('pages_volatile.info how many pages changing too fast to be placed in a tree')
print('pages_shared.label pages_shared')
print('pages_sharing.label pages_sharing')
print('pages_unshared.label pages_unshared')
print('pages_volatile.label pages_volatile')
print('pages_shared.draw AREASTACK')
print('pages_sharing.draw AREASTACK')
print('pages_unshared.draw AREASTACK')
print('pages_volatile.draw AREASTACK')
elif('ksm_pages_relative' in sys.argv[0]):
print 'graph_category %s' % (category)
print 'graph_title %s Pages Relative' % (title)
print 'pages_sharing_shared.info ratio of sharing to shared pages'
print 'pages_unshared_sharing.info ratio of unshared to sharing pages'
print 'pages_sharing_shared.label pages_sharing_shared'
print 'pages_unshared_sharing.label pages_unshared_sharing'
print 'pages_sharing_shared.cdef pages_sharing_shared,100,*'
print 'pages_unshared_sharing.cdef pages_unshared_sharing,100,*'
print('graph_category system')
print('graph_title %s Pages Relative' % (title))
print('pages_sharing_shared.info ratio of sharing to shared pages')
print('pages_unshared_sharing.info ratio of unshared to sharing pages')
print('pages_sharing_shared.label pages_sharing_shared')
print('pages_unshared_sharing.label pages_unshared_sharing')
print('pages_sharing_shared.cdef pages_sharing_shared,100,*')
print('pages_unshared_sharing.cdef pages_unshared_sharing,100,*')
elif('ksm_full_scans' in sys.argv[0]):
print 'graph_category %s' % (category)
print 'graph_title %s Full Scans' % (title)
print 'full_scans.info how many times all mergeable areas have been scanned'
print 'full_scans.label full_scans'
print('graph_category system')
print('graph_title %s Full Scans' % (title))
print('full_scans.info how many times all mergeable areas have been scanned')
print('full_scans.label full_scans')
sys.exit(0)
if len(sys.argv) > 1:
if sys.argv[1] == 'autoconf':
autoconf()
@ -91,19 +96,21 @@ if len(sys.argv) > 1:
print('unknown argument "' + sys.argv[1] + '"')
sys.exit(1)
pages_shared=int(open('/sys/kernel/mm/ksm/pages_shared').read())
pages_sharing=int(open('/sys/kernel/mm/ksm/pages_sharing').read())
pages_unshared=int(open('/sys/kernel/mm/ksm/pages_unshared').read())
pages_volatile=int(open('/sys/kernel/mm/ksm/pages_volatile').read())
full_scans=int(open('/sys/kernel/mm/ksm/full_scans').read())
pages_shared = int(open('/sys/kernel/mm/ksm/pages_shared').read())
pages_sharing = int(open('/sys/kernel/mm/ksm/pages_sharing').read())
pages_unshared = int(open('/sys/kernel/mm/ksm/pages_unshared').read())
pages_volatile = int(open('/sys/kernel/mm/ksm/pages_volatile').read())
full_scans = int(open('/sys/kernel/mm/ksm/full_scans').read())
if('ksm_pages_absolute' in sys.argv[0]):
print 'pages_shared.value %i' % pages_shared
print 'pages_sharing.value %i' % pages_sharing
print 'pages_unshared.value %i' % pages_unshared
print 'pages_volatile.value %i' % pages_volatile
elif('ksm_pages_relative' in sys.argv[0]):
print 'pages_sharing_shared.value %f' % (float(pages_sharing)/float(pages_shared) if pages_shared>0 else 0)
print 'pages_unshared_sharing.value %f' % (float(pages_unshared)/float(pages_sharing) if pages_sharing>0 else 0)
elif('ksm_full_scans' in sys.argv[0]):
print 'full_scans.value %i' % full_scans
if('ksm_pages_absolute' in sys.argv[0]):
print('pages_shared.value %i' % pages_shared)
print('pages_sharing.value %i' % pages_sharing)
print('pages_unshared.value %i' % pages_unshared)
print('pages_volatile.value %i' % pages_volatile)
elif('ksm_pages_relative' in sys.argv[0]):
print('pages_sharing_shared.value %f'
% (float(pages_sharing) / float(pages_shared) if pages_shared > 0 else 0))
print('pages_unshared_sharing.value %f'
% (float(pages_unshared) / float(pages_sharing) if pages_sharing > 0 else 0))
elif('ksm_full_scans' in sys.argv[0]):
print('full_scans.value %i' % full_scans)