D:\javolution-2.2>java -jar javolution.jar perf

Javolution - Java(TM) Solution for Real-Time and Embedded Systems
Version 2.2.0 (J2SE 1.4+) January 8 2005 (http://javolution.org)

Benchmark...

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// Package: javolution.io //
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// Package: javolution.lang //
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-- String/StringBuffer/StringBuilder versus Text/TextBuilder --
"Concatenates this line one hundred times (resulting in a text of about 8000 characters)"
String "+" operator: 10ms
StringBuffer "append": 147µs
StringBuilder "append": 737µs
Text "plus" (heap): 48µs
Text "plus" (stack): 34µs
TextBuilder "append": 38µs

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// Package: javolution.realtime //
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-- Heap versus Stack Allocation (Pool-Context) --
Object heap creation: 49ns
Object stack creation: 32ns
char[128] heap creation: 3622ns
char[128] stack creation: 107ns
char[256] heap creation: 15µs
char[256] stack creation: 98ns

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// Package: javolution.util //
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-- HashMap/LinkedMap versus FastMap --
HashMap
    Creates/populates map of 200 entries: 52µs
    Access (get): 55ns
    Iterates through all map entries: 15µs
LinkedHashMap
    Creates/populates map of 200 entries: 62µs
    Access (get): 75ns
    Iterates through all map entries: 8853ns
FastMap
    Creates/populates map of 200 entries: 30µs
    Access (get): 35ns
    Iterates through all map entries: 7609ns
    Statistics: SIZE: 200, CAPACITY: 256, AVG COLLISIONS: 35%, MAX SLOT OCCUPANCY: 4

-- HashSet/LinkedHashSet/TreeSet versus FastSet --
HashSet
    Creates/populates set of 200 elements: 54µs
    Access (contains): 58ns
    Iterates through all set elements: 15µs
LinkedHashSet
    Creates/populates set of 200 elements: 64µs
    Access (contains): 59ns
    Iterates through all set elements: 9132ns
FastSet
    Creates/populates set of 200 elements: 29µs
    Access (contains): 54ns
    Iterates through all set elements: 7675ns

-- ArrayList/LinkedList versus FastList --
ArrayList
    Creates new list and appends 200 elements: 19µs
    Iterates through all list elements: 10µs
LinkedList
    Creates new list and appends 200 elements: 23µs
    Iterates through all list elements: 8611ns
FastList
    Creates new list and appends 200 elements: 30µs
    Iterates through all list elements: 8767ns

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// Package: javolution.xml //
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-- Java(TM) Serialization --
Write Time: 45ms
Read Time: 64ms

-- XML Serialization (I/O Stream) --
Write Time: 30ms
Read Time: 57ms

-- XML Serialization (NIO ByteBuffer) --
Write Time: 24ms
Read Time: 38ms

More performance analysis in future versions...