Package com.sleepycat.db

Class MutexStats

java.lang.Object

com.sleepycat.db.MutexStats

public class MutexStats
extends java.lang.Object

Statistics about mutexes in a Berkeley DB database environment, returned by Environment.getMutexStats(com.sleepycat.db.StatsConfig)

Method Summary

Modifier and Type	Method	Description
int	getMutexAlign()	The mutex alignment, in bytes.
int	getMutexCount()	The total number of mutexes configured.
int	getMutexFree()	The number of mutexes currently available.
int	getMutexInit()	The initial number of mutexes configured.
int	getMutexInuse()	The number of mutexes currently in use.
int	getMutexInuseMax()	The maximum number of mutexes ever in use.
int	getMutexMax()	The maximum number of mutexes.
int	getMutexTasSpins()	The number of times test-and-set mutexes will spin without blocking.
long	getRegionNowait()	The number of times that a thread of control was able to obtain the mutex region mutex without waiting.
long	getRegionWait()	The number of times that a thread of control was forced to wait before obtaining the mutex region mutex.
long	getRegmax()	The max size of the mutex region size.
long	getRegSize()	The size of the mutex region, in bytes.
java.lang.String	toString()	For convenience, the MutexStats class has a toString method that lists all the data fields.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getMutexAlign

public int getMutexAlign()

The mutex alignment, in bytes.

Returns:

the mutex alignment, in bytes

getMutexTasSpins

public int getMutexTasSpins()

The number of times test-and-set mutexes will spin without blocking.

Returns:

the number of times test-and-set mutexes will spin without blocking

getMutexInit

public int getMutexInit()

The initial number of mutexes configured.

Returns:

the initial number of mutexes configured

getMutexCount

public int getMutexCount()

The total number of mutexes configured.

Returns:

the total number of mutexes configured

getMutexMax

public int getMutexMax()

The maximum number of mutexes.

Returns:

the maximum number of mutexes

getMutexFree

public int getMutexFree()

The number of mutexes currently available.

Returns:

the number of mutexes currently available

getMutexInuse

public int getMutexInuse()

The number of mutexes currently in use.

Returns:

the number of mutexes currently in use

getMutexInuseMax

public int getMutexInuseMax()

The maximum number of mutexes ever in use.

Returns:

the maximum number of mutexes ever in use

getRegionWait

public long getRegionWait()

The number of times that a thread of control was forced to wait before obtaining the mutex region mutex.

Returns:

the number of times that a thread of control was forced to wait before obtaining the mutex region mutex

getRegionNowait

public long getRegionNowait()

The number of times that a thread of control was able to obtain the mutex region mutex without waiting.

Returns:

the number of times that a thread of control was able to obtain the mutex region mutex without waiting

getRegSize

public long getRegSize()

The size of the mutex region, in bytes.

Returns:

the size of the mutex region, in bytes

getRegmax

public long getRegmax()

The max size of the mutex region size.

Returns:

the max size of the mutex region size

toString

public java.lang.String toString()

For convenience, the MutexStats class has a toString method that lists all the data fields.

Overrides:

toString in class java.lang.Object

Returns:

a String that lists all the data fields