This PR includes a bunch of changes detailed below. Up front here are the top level results:
Benchmarks
Initial load
The time to start a new shell (when opening a terminal emulator for the first time, opening a new tmux pane or running zsh). Benchmarked with hyperfine: hyperfine 'zsh -i -c "exit 0"' --warmup 3 --export-markdown startup.md.
Branch
Command
Mean [ms]
Min [ms]
Max [ms]
Relative
curent master
zsh -i -c exit
302.8 ± 27.0
278.9
347.8
1.0
speed (this PR branch)
zsh -i -c exit
91.7 ± 12.0
79.4
144.3
1.0
This PR improves initial load time by ~3x.
Prompt rendering
Time to render a new prompt after running a command. Benchmarked with zsh-prompt-benchmark in two different repositories (this repo & the linux kernel).
Repo
Branch
Latency (ms)
.files (this repo)
current master
219.96
.files (this repo)
speed (this PR branch)
45.67
linux kernel
current master
1536.35
linux kernel
speed (this PR branch)
38.48
This PR improves prompt rendering time by ~5-500x depending on the repo size.
put every zsh function in its own file to be autoloaded. Minimal speed improvement more a general refactoring. Additionally move functions in their respective scope/utility
remove ruby gems from path as this was about ~100ms of initial load time. Doing so breaks usage of tmuxinator. In future changes will either reenable in a more efficient way (possibly using zplugin to asynchronously modify $PATH), install in a different method (not a ruby gem) or use a different tmux session manager.
change fasd initialization to load components and cache results for speed improvements
remove rarely used history-substring-search zsh plugin
This PR includes a bunch of changes detailed below. Up front here are the top level results:
Benchmarks
Initial load
The time to start a new shell (when opening a terminal emulator for the first time, opening a new
tmuxpane or runningzsh). Benchmarked withhyperfine:hyperfine 'zsh -i -c "exit 0"' --warmup 3 --export-markdown startup.md.masterzsh -i -c exitspeed(this PR branch)zsh -i -c exitThis PR improves initial load time by ~3x.
Prompt rendering
Time to render a new prompt after running a command. Benchmarked with
zsh-prompt-benchmarkin two different repositories (this repo & the linux kernel).masterspeed(this PR branch)masterspeed(this PR branch)This PR improves prompt rendering time by ~5-500x depending on the repo size.
Changelog
spaceship-prompttopowerlevel10kfor dramatic speed improvementszsh/prompt.zsh, see details thereantibodytozpluginfor speed improvement/async loading of pluginszs/plugins.zshzshfunction in its own file to be autoloaded. Minimal speed improvement more a general refactoring. Additionally move functions in their respective scope/utilitytmuxinator. In future changes will either reenable in a more efficient way (possibly usingzpluginto asynchronously modify$PATH), install in a different method (not a ruby gem) or use a different tmux session manager.fasdinitialization to load components and cache results for speed improvementshistory-substring-searchzsh plugin