OpenBSD Handbook

Current snapshot · amd64 · Generated 2026-09-09

logswan-2.1.17

fast web log analyzer using probabilistic data structures

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Description

Logswan is a fast Web log analyzer using probabilistic data structures. It is targeted at very large log files, typically APIs logs. It has constant memory usage regardless of the log file size, and takes approximatively 4MB of RAM. Unique visitors counting is performed using two HyperLogLog counters (one for IPv4, and another one for IPv6), providing a relative accuracy of 0.10%.

Package information

Ports path
www/logswan
Package architecture
amd64
Maintainer
The OpenBSD ports mailing-list <ports@openbsd.org>
Categories
www
Available flavors
None listed
Only for architectures
aarch64, amd64, arm, i386, mips64, mips64el, powerpc, powerpc64, riscv64, sparc64, alpha, hppa

These are ports metadata. Binary availability depends on the release, architecture and mirror. Build and test dependencies are not an installation checklist.

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