org.rocksdb

类 MemoryUtil

java.lang.Object

org.rocksdb.MemoryUtil

public class MemoryUtil
extends java.lang.Object

JNI passthrough for MemoryUtil.

构造器概要

构造器

构造器和说明
MemoryUtil()

方法概要

限定符和类型	方法和说明
static java.util.Map<MemoryUsageType,java.lang.Long>	getApproximateMemoryUsageByType(java.util.List<RocksDB> dbs, java.util.Set<Cache> caches) Returns the approximate memory usage of different types in the input list of DBs and Cache set.

从类继承的方法 java.lang.Object

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

构造器详细资料

MemoryUtil

public MemoryUtil()

方法详细资料

getApproximateMemoryUsageByType

public static java.util.Map<MemoryUsageType,java.lang.Long> getApproximateMemoryUsageByType(java.util.List<RocksDB> dbs,
                                                                                            java.util.Set<Cache> caches)

Returns the approximate memory usage of different types in the input list of DBs and Cache set. For instance, in the output map the key kMemTableTotal will be associated with the memory usage of all the mem-tables from all the input rocksdb instances.

Note that for memory usage inside Cache class, we will only report the usage of the input "cache_set" without including those Cache usage inside the input list "dbs" of DBs.

参数:

dbs - List of dbs to collect memory usage for.

caches - Set of caches to collect memory usage for.

返回:

Map from MemoryUsageType to memory usage as a Long.