JVM
352 items from deephacks/awesome-jvm ★2,174
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lmdbjni github.com
Java API to LMDB (HawtJNI) which is an ultra-fast, ultra-compact key-value embedded data store written in C.
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Zero-Allocation-Hashing github.com
Hashing any sequences of bytes in Java, including all kinds of primitive arrays, buffers, CharSequences and more.
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reactive-grpc github.com
Reactive gRPC is a suite of libraries for using gRPC with Reactive Streams programming libraries.
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muxy github.com
Simulating real-world distributed system failures.
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pcollections github.com
A Persistent Java Collections Library.
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NuProcess github.com
A low-overhead, non-blocking I/O, external Process execution implementation for Java.
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one-nio github.com
library for building high performance Java servers.
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compile-testing github.com
Testing tools for javac and annotation processors.
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jamm github.com
Measure actual object memory use including JVM overhead.
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Sulong github.com
LLVM IR interpreter written in Java using Truffle and Graal.
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derive4j github.com
Algebraic data types constructors, pattern-matching, morphisms, optics and typeclasses.
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JavaFastPFOR github.com
Library to compress and uncompress arrays of integers very fast.
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Java Grinder github.com
Compile Java bytecode to microcontroller assembly.
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allocation-instrumenter github.com
Java agent that rewrites bytecode to instrument allocation sites.
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Chronicle-Bytes github.com
Low level memory access wrappers.
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geohash github.com
Java utility methods for geohashing.
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high-scale-lib github.com
Cliff Click's High Scale Library.
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streamvbyte github.com
Fast integer compression in C using the StreamVByte codec.
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heapster github.com
Production heap profiling for the JVM.
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stormpot github.com
A fast object pool for the JVM.
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jparsec github.com
Builds mini parsers in pure Java a la Haskell Parsec.
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perfj github.com
Linux perf for java programs.
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tcpdump tcpdump.org
Packet analyzer for network traffic capture.
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parquet parquet.apache.org
Columnar storage format that uses the record shredding and assembly algorithm described in the Dremel paper.
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java-hll github.com
Java library for the HyperLogLog algorithm.
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SmoothieMap github.com
java.util.Map impl with worst put latencies more than 100 times smaller than java.util.HashMap.
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Riemann JVM Profiler github.com
JVM agent which sends function-level profiler telemetry to a Riemann server for analysis, visualization, and storage.
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grav github.com
A collection of tools to help visualise process execution.
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jfr-flame-graph github.com
Converting JFR Method Profiling Samples to FlameGraph compatible format.
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externalsortinginjava github.com
Sort very large files using multiple cores and an external-memory algorithm.
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Chronicle-Network github.com
A High Performance Network library.
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clj-ds github.com
Clojure's data structures modified for use outside of Clojure.
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aprof github.com
Java memory allocation profiler.
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jvmkill github.com
Agent that forcibly terminates the JVM when it is unable to allocate memory or create a thread.
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Jitescript github.com
Bytecode generation library similar to BiteScript.
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gojava github.com
Java bindings for Go packages.
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Tracer github.com
Manages custom trace identifiers and carries them through distributed systems.
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CuckooFilter4J github.com
Bloom filter replacement for approximated set-membership queries.
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hawtjni github.com
A JNI code generator based on the JNI generator used in Eclipse SWT.
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fast-uuid github.com
Java library for quickly and efficiently parsing and writing UUIDs.
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jitwatch-intellij github.com
JITWatch plugin for IntelliJ IDEA.
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Rembulan github.com
Rembulan is an implementation of Lua 5.3 for the JVM, written in pure Java with minimal dependencies.
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java-concurrent-hash-trie-map github.com
Java port of a concurrent trie hash map implementation from Scala collections.
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PauselessHashMap github.com
A java.util.HashMap compatible map that won't stall puts or gets when resizing.
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RTree2D github.com
RTree2D is a 2D immutable R-tree with STR (Sort-Tile-Recursive) packing for ultra-fast nearest and intersection queries on plane and spherical surfaces.
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fasttuple github.com
Collections that are laid out adjacently in both on- and off-heap memory.
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low-gc-membuffers github.com
In-memory circular buffers that use direct ByteBuffers to minimize GC overhead.
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jssembly github.com
Execution of native assembly from Java.
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java-sizeof github.com
Memory consumption estimator for Java.
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transducers-java github.com
Composable algorithmic transformations independent from the context of their input and output sources.
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