org.apache.iotdb.db.utils

类 MemUtils

java.lang.Object

org.apache.iotdb.db.utils.MemUtils

public class MemUtils
extends Object

方法概要

限定符和类型	方法和说明
static String	bytesCntToStr(long inputCnt) function for converting the byte count result to readable string.
static long	getAlignedRecordsSize(List<TSDataType> dataTypes, Object[] value, boolean addingTextDataSize) function for getting the vector value size.
static long	getAlignedTabletSize(InsertTabletPlan insertTabletPlan, int start, int end, boolean addingTextDataSize)
static long	getBinaryColumnSize(Binary[] column, int start, int end)
static long	getBinarySize(Binary value)
static long	getDataPointMem(DataPoint dataPoint) function for getting the memory size of the given data point.
static long	getRecordSize(TSDataType dataType, Object value, boolean addingTextDataSize) function for getting the value size.
static long	getRecordsSize(List<TSDataType> dataTypes, Object[] value, boolean addingTextDataSize) function for getting the value size.
static long	getStringMem(String str) function for getting the memory size of the given string.
static long	getTabletSize(InsertTabletPlan insertTabletPlan, int start, int end, boolean addingTextDataSize) If mem control enabled, do not add text data size here, the size will be added to memtable before inserting.
static long	getTsRecordMem(TSRecord record) Calculate how much memory will be used if the given record is written to sequence file.

从类继承的方法 java.lang.Object

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

方法详细资料

getRecordSize

public static long getRecordSize(TSDataType dataType,
                                 Object value,
                                 boolean addingTextDataSize)

function for getting the value size. If mem control enabled, do not add text data size here, the size will be added to memtable before inserting.

getRecordsSize

public static long getRecordsSize(List<TSDataType> dataTypes,
                                  Object[] value,
                                  boolean addingTextDataSize)

function for getting the value size. If mem control enabled, do not add text data size here, the size will be added to memtable before inserting.

getAlignedRecordsSize

public static long getAlignedRecordsSize(List<TSDataType> dataTypes,
                                         Object[] value,
                                         boolean addingTextDataSize)

function for getting the vector value size. If mem control enabled, do not add text data size here, the size will be added to memtable before inserting.

getBinarySize

public static long getBinarySize(Binary value)

getBinaryColumnSize

public static long getBinaryColumnSize(Binary[] column,
                                       int start,
                                       int end)

getTabletSize

public static long getTabletSize(InsertTabletPlan insertTabletPlan,
                                 int start,
                                 int end,
                                 boolean addingTextDataSize)

If mem control enabled, do not add text data size here, the size will be added to memtable before inserting.

getAlignedTabletSize

public static long getAlignedTabletSize(InsertTabletPlan insertTabletPlan,
                                        int start,
                                        int end,
                                        boolean addingTextDataSize)

getTsRecordMem

public static long getTsRecordMem(TSRecord record)

Calculate how much memory will be used if the given record is written to sequence file.

getStringMem

public static long getStringMem(String str)

function for getting the memory size of the given string.

getDataPointMem

public static long getDataPointMem(DataPoint dataPoint)

function for getting the memory size of the given data point.

bytesCntToStr

public static String bytesCntToStr(long inputCnt)

function for converting the byte count result to readable string.