Add systemd timer as alternative auto-save mechanism#157
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Marcel-Bich wants to merge 1 commit intotmux-plugins:masterfrom
Open
Add systemd timer as alternative auto-save mechanism#157Marcel-Bich wants to merge 1 commit intotmux-plugins:masterfrom
Marcel-Bich wants to merge 1 commit intotmux-plugins:masterfrom
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The default status-right based auto-save uses #() command substitution that runs on every status refresh for every attached client. With many concurrent sessions this causes CPU scaling issues. This adds a systemd user timer that calls tmux-resurrect save directly, once per interval, independent of client count. Closes tmux-plugins#99
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Summary
Adds a systemd user timer as an alternative to the
status-right#()based auto-save. This addresses the long-standing request in #99 to decouple auto-save from the status bar.Problem
The current auto-save mechanism prepends
#(continuum_save.sh)tostatus-right. tmux evaluates#()commands on every status refresh for every attached client. With N clients and a 5-secondstatus-interval, that means N shell invocations every 5 seconds, each spawning multiple subprocesses for version checks, timestamp comparisons, and tmux queries.This scales poorly:
Each invocation spawns ~10 subprocesses, creating thousands of context switches per second.
Solution
A systemd user timer that calls
tmux-resurrect savedirectly, once every 15 minutes, regardless of client count. This is opt-in and documented insystemd/README.md.Users who prefer the existing mechanism can continue using it unchanged.
Files added
systemd/tmux-resurrect-save.service- oneshot servicesystemd/tmux-resurrect-save.timer- 15-minute timersystemd/README.md- setup instructionsCloses #99