nvm load on session start takes ~30 seconds, lazy load not working
MyNameIsOka opened this issue · comments
Hi everybody,
I have had this problem for some time now and didn't find a solution, so I hope you guys can help me out.
When I use zsh-nvm without lazy load, the session start takes insanely long (~30 seconds).
That startup is only that slow when I open Terminal the first time after a restart of the machine.
When I use lazy loading, .nvmrc files are ignored until I manually enter something like nvm -v and then cd in the corresponding folder.
EDIT:
I just saw that you wrote about this in the README: https://github.com/lukechilds/zsh-nvm#auto-use
I tried to fix it according to issue #28 but adding PATH before zsh-nvm didn't change anything.
add-zsh-hook chpwd _zsh_nvm_auto_use && echo yep || echo nope
gives me yep
I don't know what I should look for or what the culprit could be.
I hope you guys can give me some tips on where to look!
Looking through the various issues, several of them identify what I am experiencing but I think this one is probably the best place for me to follow on.
Just to be sure it wasn't a broader problem, I did this. Still, no luck.
To validate the issue, I tested the plugin loading times using the "A Note on Profiling with zsh/zprof" section of this article. The results I got were pretty surprising.
This first test was what I was initially dealing with:
num calls time self name
-----------------------------------------------------------------------------------
1) 1 16982.97 16982.97 65.03% 16982.71 16982.71 65.03% _zsh_nvm_auto_use
2) 2 6257.87 3128.93 23.96% 3328.52 1664.26 12.75% nvm
3) 1 2835.52 2835.52 10.86% 2772.00 2772.00 10.61% nvm_ensure_version_installed
4) 1 7862.78 7862.78 30.11% 1604.91 1604.91 6.15% nvm_auto
5) 1 1091.19 1091.19 4.18% 1090.75 1090.75 4.18% _zsh_nvm_lazy_load
6) 1 93.17 93.17 0.36% 92.95 92.95 0.36% nvm_die_on_prefix
7) 3 100.92 33.64 0.39% 79.26 26.42 0.30% compinit
8) 1 63.52 63.52 0.24% 63.52 63.52 0.24% nvm_is_version_installed
9) 192 25.70 0.13 0.10% 21.69 0.11 0.08% _zsh_autosuggest_bind_widget
10) 2 21.66 10.83 0.08% 21.66 10.83 0.08% compaudi
...Then, I set NVM_AUTO_USE=false. This was the improvement I saw:
num calls time self name
-----------------------------------------------------------------------------------
1) 2 6005.54 3002.77 73.61% 3289.87 1644.93 40.32% nvm
2) 1 2622.10 2622.10 32.14% 1932.04 1932.04 23.68% nvm_ensure_version_installed
3) 1 1130.55 1130.55 13.86% 1129.79 1129.79 13.85% _zsh_nvm_lazy_load
4) 1 6828.53 6828.53 83.69% 822.99 822.99 10.09% nvm_auto
5) 1 690.06 690.06 8.46% 690.06 690.06 8.46% nvm_is_version_installed
6) 1 92.38 92.38 1.13% 92.11 92.11 1.13% nvm_die_on_prefix
7) 3 121.23 40.41 1.49% 84.85 28.28 1.04% compinit
8) 2 36.37 18.19 0.45% 36.37 18.19 0.45% compaudit
...Finally, I deleted zsh-nvm from the list of plugins in my .zshrc and it became obvious that zsh-nvm is what is killing my load times:
num calls time self name
-----------------------------------------------------------------------------------
1) 2 1796.27 898.13 55.22% 1035.22 517.61 31.82% nvm
2) 3 1153.82 384.61 35.47% 765.91 255.30 23.54% compinit
3) 1 690.32 690.32 21.22% 634.07 634.07 19.49% nvm_ensure_version_installed
4) 1 244.02 244.02 7.50% 244.02 244.02 7.50% compdump
5) 1 2016.84 2016.84 62.00% 220.58 220.58 6.78% nvm_auto
6) 923 123.67 0.13 3.80% 123.67 0.13 3.80% compdef
7) 1 70.17 70.17 2.16% 69.96 69.96 2.15% nvm_die_on_prefix
8) 1 56.25 56.25 1.73% 56.25 56.25 1.73% nvm_is_version_installed
9) 192 32.25 0.17 0.99% 27.56 0.14 0.85% _zsh_autosuggest_bind_widget
10) 2 21.48 10.74 0.66% 21.48 10.74 0.66% compauditP.s. Lazy loading it did nothing to improve load times.