[B! hashtable][offheap] yassのブックマーク

yass id:yass

hashtableとoffheapに関するyassのブックマーク (8)

GitHub - yahoo/Oak: A Scalable Concurrent Key-Value Map for Big Data Analytics
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yass 2019/05/18
offheap

hashtable

kvs

java
リンク
GitHub - RuedigerMoeller/fast-serialization: FST: fast java serialization drop in-replacement
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yass 2014/08/31
java

serialize

offheap

hashtable
リンク
Only the Good Die Young (or Move Off-heap?) | Blog of Christian Felde
yass 2014/08/31
"keep only a few private fields, 2 ints + 2 longs + 2 object references (Unsafe and a hash function), for the duration of the instance. The rest are short lived or managed off-heap. / BOHMap must do more work than the standard HashMap, since it needs to copy data between on-heap and off-heap memory"

java

gc

offheap

unsafe

hashtable

binary

java8

serialize
リンク
java.util.concurrent.ConcurrentHashMap VS openhft.collections.SharedHashMap
yass 2014/04/20
OpenHFT

hashtable

offheap

gc
リンク
OpenHFT/HugeCollections · GitHub - Huge Collections for Java using efficient off heap storage
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yass 2014/04/20
" The use of StringBuilder as the key allows the key to recycled efficiently. String can be used but creating millions of Strings can trigger GCs. "

java

offheap

colllection

hashtable

unsafe

OpenHFT
リンク
OpenJDK and HashMap …. Safely Teaching an Old Dog New (Off-Heap!) Tricks
InfoQ Software Architects' Newsletter A monthly overview of things you need to know as an architect or aspiring architect. View an example
yass 2014/04/20
java

gc

offheap

hashtable

unsafe

OpenHFT

concurrenthashmap
リンク
3 billion items in Java Map with 16 GB RAM
3 billion it ems in Java Map with 16 GB RAM One rainy evening I meditated about memory managment in Java and how effectively Java collections utilise memory. I made simple experiment, how much entries can I insert into Java Map with 16 GB of RAM? Goal of this experiment is to investigate internal overhead of collections. So I decided to use small keys and small values. All tests were made on Linux
yass 2013/07/30
" -XX:MaxDirectMemorySize=15G -Xmx128M. / Delta-key compression is active by default on all examples. "

java

mapdb

offheap

btree

hashtable
リンク
Map<D,B>
Map<D,B>Map DB provides Java Maps, Sets, Lists, Queues and other collections backed by off-heap or on-disk storage. It is a hybrid between java collection framework and embedded database engine. It is free and open-source under Apache license.
yass 2013/07/30
java

offheap

database

memory

hashtable

mapdb

mmap

collection
リンク
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