Perfmon.htm

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Python class Perfmon

The SmartEDB Performance Monitor is implemented in the class Perfmon which is defined as follows:

class Perfmon(object):

TotalPages = 0

FreePages = 1

UsedPages = 2

FileSize = 3

LogFileSize = 4

UsedFileSize = 5

CacheHitCount = 6

CacheMissCount = 7

CachePagesAllocated = 8

CachePagesUSed = 9

CachePagesPinned = 10

CachePagesModified = 11

CachePagesDirty = 12

CachePagesCopied = 13

CachePagesWriteDelayed = 14

DiskReadTime = 0

DiskWriteTime = 1

LogWriteTime = 2

CommitTime = 3

RollbackTime = 4

SnapshotDuration = 5

ClusterNetSendTime = 6

ClusterNetRecvTime = 7

@staticmethod

def init(memsize =64 << 20):

global _SmartEDB

return _SmartEDB.perfmon_init(memsize)

@staticmethod

def close():

global _SmartEDB

return _SmartEDB.perfmon_close()

@staticmethod

def attach(db):

global _SmartEDB

return _SmartEDB.perfmon_attach(db)

@staticmethod

def detach(db):

global _SmartEDB

return _SmartEDB.perfmon_detach(db)

@staticmethod

def getDbName():

global _SmartEDB

return _SmartEDB.perfmon_get_db_name()

@staticmethod

def getOptions():

global _SmartEDB

return _SmartEDB.perfmon_get_options()

@staticmethod

def setOption(option, value):

global _SmartEDB

return _SmartEDB.perfmon_set_option(option, value)

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