zswap-cli 1.1.0

Zswap-cli is a command-line tool to control zswap Linux kernel module options. Zswap is a compressed cache for swap pages. It takes pages that are in the process of being swapped out to disk and tries to compress them into a RAM-based memory pool with dynamic allocation. It trades CPU cycles for a significant performance boost since reading from a compressed cache is much faster than reading from a swap device. Features Currently supported features: CLI, environment variables and configuration files support. Optional systemd integration. Usage statistics and debug information support. Does not require a reboot.

Tags linux cli command-line utility kernel zswap cpp
License MITL
State stable

Homepage Download

Recent Releases

1.1.020 Aug 2025 09:28 major feature: Implemented hiding of unsupported by current kernel options from the --stats output. Added support of new kernel module variables. Added shell completion support. Added swap space check to the --stats handler. Documented all configuration options in the default configuration file. Fixed incorrect estimation of total RAM size on various architectures. Fixed incorrect estimation of total swap size on various architectures.
1.0.020 Oct 2024 10:09 major feature: Switched the project to C++20 standard. Switched the binary installation path from sbin to bin. Disabled installation of the default configuration file if the systemd integration is not enabled. Added a new non_same_filled_pages_enabled kernel module option support. Added a new exclusive_loads kernel module option support. Added a new shrinker_enabled kernel module option support. Added kernel API version to the --version output. Added an option to link against all libraries statically (no dependencies mode). Added an option to enable or disable link-time optimizations.
0.9.109 Feb 2024 12:35 minor feature: Changes Added short alias -h for --help command-line option. Added short alias -v for --version command-line option. Fixed header guards. Introduced a custom variable name for systemd unit. Added dependabot support for tracking GitHub actions. Performed minor refactoring. Updated all GitHub workflows.
0.7.026 Dec 2021 13:53 major bugfix: Fixed building with GCC versions lower than 8. Fixed a typo threhsold - threshold. Fixed ability to control accept_threshold_percent ZSwap option. Added checks to forbid operations with accept_threshold_percent ZSwap option on Linux kernel 5.6.0. Systemd integration is now fully optional and can be disabled on CMake configuration step. Restored fmtlib submodule for distributions without packaged version. Added a new semver submodule.