zooparallel

ZooParallel Logo

High-Performance Multiprocessing Primitives for Python, written in Rust

ZooParallel provides robust, crash-safe, and zero-copy synchronization primitives backed by Shared Memory (POSIX shm) and Linux Futexes.

📖 User Guide

🚀 Usage Examples

Install

pip install zooparallelmp

or with uv:

uv add zooparallelmp

Process Pool

from zooparallel import ZooPool

# 8x faster than ProcessPoolExecutor for small tasks
with ZooPool(num_workers=4) as pool:
    # Processing data in parallel with zero IPC overhead
    results = pool.map(lambda x: x*x, range(100))

Lock (Crash-Safe)

from zooparallel import ZooLock, LockRecovered

# If a process kills -9 while holding this, the next one recovers it!
lock = ZooLock("my_db_lock")

try:
    with lock:
        # Critical Section
        pass
except LockRecovered:
    print("Previous owner died! State recovered.")

Zero-Copy Queue

from zooparallel import ZooQueue

# Ring Buffer in Shared Memory
q = ZooQueue("video_stream", size_mb=100)

# Producer
q.put_bytes(b"frame_data")

# Consumer (Zero-Copy View)
view, cursor = q.recv_view()
# process 'view' directly without copying...
q.commit_read(cursor)

💡 When to use ZooParallel?

✅ Use ZooParallel when...	❌ Stick to `multiprocessing` when...
You need high throughput (GB/s) between processes.	You are sending small, infrequent messages.
You are working with large data like Video Frames or Numpy Arrays.	You need to support Windows.
You require latency < 1ms for IPC.	You prefer pure Python standard libraries without binary extensions.
You need crash-safety (if a worker dies, the lock is released).	You need dynamic buffer resizing (ZooQueue is fixed-size).

📚 Documentation

Guides

User Guide: Getting started and common patterns.
Adapters: Integration with Numpy, PyArrow, and Protobuf.

Features

Robust Locks: Crash-safe mutexes that recover from dead workers.
Zero-Copy Queues: high-throughput IPC ring buffers.
ZooPool: High-performance process pool.

📊 Benchmarks

Results from a MacBook Pro M1 8GB RAM (2020):

Benchmark	`multiprocessing`	`ZooParallel`	Speedup
Lock Contention	281k ops/s	1.22M ops/s	4.3x
Queue Throughput	4.1 GB/s	32.6 GB/s	7.9x
Pool Overhead	14k tasks/s	114k tasks/s	8.1x

Architecture (ADRs)

Compatibility

[!WARNING] macOS/Windows: Crash recovery (resiliency against dead processes) relies on Robust Mutexes, which are only supported on Linux. On macOS, if a worker process crashes while holding a lock, the system will deadlock. Use with caution in production on non-Linux platforms. Note that ZooPool monitors and restarts crashed workers, but this cannot recover a deadlocked synchronization primitive.

OS	Lock	Queue	Pool	Crash Recovery
Linux	✅	✅	✅	✅
macOS	✅	✅	✅	❌
Windows	❌	❌	❌	❌

License

MIT

Release files for zooparallel 2026.2.2

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for zooparallel 2026.2.2
File	Size	Uploaded
zooparallel-2026.2.2.tar.gz	42.6 kB	Feb 2, 2026	Details

Built distributions (wheels)

Table of built distributions (wheels) for zooparallel 2026.2.2
File	Interpreter	ABI	Platform	Reset
zooparallel-2026.2.2-cp313-cp313-manylinux_2_28_x86_64.whl 223.9 kB Feb 2, 2026	CPython 3.13	CPython 3.13	Linux glibc 2.28+ x86-64	Details
zooparallel-2026.2.2-cp313-cp313-manylinux_2_28_aarch64.whl 216.8 kB Feb 2, 2026	CPython 3.13	CPython 3.13	Linux glibc 2.28+ ARM64	Details
zooparallel-2026.2.2-cp313-cp313-macosx_11_0_arm64.whl 199.0 kB Feb 2, 2026	CPython 3.13	CPython 3.13	macOS 11.0+ ARM64	Details
zooparallel-2026.2.2-cp313-cp313-macosx_10_12_x86_64.whl 210.5 kB Feb 2, 2026	CPython 3.13	CPython 3.13	macOS 10.12+ x86-64	Details
zooparallel-2026.2.2-cp312-cp312-manylinux_2_28_x86_64.whl 224.1 kB Feb 2, 2026	CPython 3.12	CPython 3.12	Linux glibc 2.28+ x86-64	Details
zooparallel-2026.2.2-cp312-cp312-manylinux_2_28_aarch64.whl 216.9 kB Feb 2, 2026	CPython 3.12	CPython 3.12	Linux glibc 2.28+ ARM64	Details
zooparallel-2026.2.2-cp312-cp312-macosx_11_0_arm64.whl 199.0 kB Feb 2, 2026	CPython 3.12	CPython 3.12	macOS 11.0+ ARM64	Details
zooparallel-2026.2.2-cp312-cp312-macosx_10_12_x86_64.whl 210.5 kB Feb 2, 2026	CPython 3.12	CPython 3.12	macOS 10.12+ x86-64	Details
zooparallel-2026.2.2-cp311-cp311-manylinux_2_28_x86_64.whl 224.0 kB Feb 2, 2026	CPython 3.11	CPython 3.11	Linux glibc 2.28+ x86-64	Details
zooparallel-2026.2.2-cp311-cp311-manylinux_2_28_aarch64.whl 217.7 kB Feb 2, 2026	CPython 3.11	CPython 3.11	Linux glibc 2.28+ ARM64	Details
zooparallel-2026.2.2-cp311-cp311-macosx_11_0_arm64.whl 198.9 kB Feb 2, 2026	CPython 3.11	CPython 3.11	macOS 11.0+ ARM64	Details
zooparallel-2026.2.2-cp311-cp311-macosx_10_12_x86_64.whl 210.1 kB Feb 2, 2026	CPython 3.11	CPython 3.11	macOS 10.12+ x86-64	Details
zooparallel-2026.2.2-cp310-cp310-manylinux_2_28_x86_64.whl 224.2 kB Feb 2, 2026	CPython 3.10	CPython 3.10	Linux glibc 2.28+ x86-64	Details
zooparallel-2026.2.2-cp310-cp310-manylinux_2_28_aarch64.whl 217.9 kB Feb 2, 2026	CPython 3.10	CPython 3.10	Linux glibc 2.28+ ARM64	Details
zooparallel-2026.2.2-cp310-cp310-macosx_11_0_arm64.whl 199.3 kB Feb 2, 2026	CPython 3.10	CPython 3.10	macOS 11.0+ ARM64	Details
zooparallel-2026.2.2-cp310-cp310-macosx_10_12_x86_64.whl 210.4 kB Feb 2, 2026	CPython 3.10	CPython 3.10	macOS 10.12+ x86-64	Details

Total release size: 3.4 MB

Release files / zooparallel-2026.2.2.tar.gz

Download URL	zooparallel-2026.2.2.tar.gz
Size	42.6 kB
Tags	Source
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Upload date	Feb 2, 2026
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Release files / zooparallel-2026.2.2-cp313-cp313-manylinux_2_28_x86_64.whl

Download URL	zooparallel-2026.2.2-cp313-cp313-manylinux_2_28_x86_64.whl
Size	223.9 kB
Tags	CPython 3.13 Linux glibc 2.28+ x86-64
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Upload date	Feb 2, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Release files / zooparallel-2026.2.2-cp313-cp313-manylinux_2_28_aarch64.whl

Download URL	zooparallel-2026.2.2-cp313-cp313-manylinux_2_28_aarch64.whl
Size	216.8 kB
Tags	CPython 3.13 Linux glibc 2.28+ ARM64
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Release files / zooparallel-2026.2.2-cp313-cp313-macosx_11_0_arm64.whl

Download URL	zooparallel-2026.2.2-cp313-cp313-macosx_11_0_arm64.whl
Size	199.0 kB
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Release files / zooparallel-2026.2.2-cp313-cp313-macosx_10_12_x86_64.whl

Download URL	zooparallel-2026.2.2-cp313-cp313-macosx_10_12_x86_64.whl
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Publishing configuration: github.com/albertobadia/zooparallel/blob/5443094cae1d53367b3a66cb3f152afd1e1507da/.github/workflows/release.yml
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Subject: zooparallel-2026.2.2-cp313-cp313-macosx_10_12_x86_64.whl
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Release files / zooparallel-2026.2.2-cp312-cp312-manylinux_2_28_x86_64.whl

Download URL	zooparallel-2026.2.2-cp312-cp312-manylinux_2_28_x86_64.whl
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Tags	CPython 3.12 Linux glibc 2.28+ x86-64
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Upload date	Feb 2, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Publishing configuration: github.com/albertobadia/zooparallel/blob/5443094cae1d53367b3a66cb3f152afd1e1507da/.github/workflows/release.yml
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Release files / zooparallel-2026.2.2-cp312-cp312-manylinux_2_28_aarch64.whl

Download URL	zooparallel-2026.2.2-cp312-cp312-manylinux_2_28_aarch64.whl
Size	216.9 kB
Tags	CPython 3.12 Linux glibc 2.28+ ARM64
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Release files / zooparallel-2026.2.2-cp312-cp312-macosx_11_0_arm64.whl

Download URL	zooparallel-2026.2.2-cp312-cp312-macosx_11_0_arm64.whl
Size	199.0 kB
Tags	CPython 3.12 macOS 11.0+ ARM64
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Subject: zooparallel-2026.2.2-cp312-cp312-macosx_11_0_arm64.whl
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Release files / zooparallel-2026.2.2-cp312-cp312-macosx_10_12_x86_64.whl

Download URL	zooparallel-2026.2.2-cp312-cp312-macosx_10_12_x86_64.whl
Size	210.5 kB
Tags	CPython 3.12 macOS 10.12+ x86-64
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Release files / zooparallel-2026.2.2-cp311-cp311-manylinux_2_28_x86_64.whl

Download URL	zooparallel-2026.2.2-cp311-cp311-manylinux_2_28_x86_64.whl
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Tags	CPython 3.11 Linux glibc 2.28+ x86-64
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Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Release files / zooparallel-2026.2.2-cp311-cp311-manylinux_2_28_aarch64.whl

Download URL	zooparallel-2026.2.2-cp311-cp311-manylinux_2_28_aarch64.whl
Size	217.7 kB
Tags	CPython 3.11 Linux glibc 2.28+ ARM64
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing repository: github.com/albertobadia/zooparallel
Publishing commit: github.com/albertobadia/zooparallel/tree/5443094cae1d53367b3a66cb3f152afd1e1507da

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Release files / zooparallel-2026.2.2-cp311-cp311-macosx_11_0_arm64.whl

Download URL	zooparallel-2026.2.2-cp311-cp311-macosx_11_0_arm64.whl
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2026.2.2 This release

Feb 2, 2026 17 release files

zooparallel 2026.2.2

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