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如何檢查是什麼減慢了我的終端啟動速度？

tag-icon • tag-icon macos shell zsh
如何檢查是什麼減慢了我的終端啟動速度？

有沒有辦法檢查是什麼減慢了我的終端啟動速度？我在 iTerm2 上使用 zsh 和 ohmyzsh。

開啟新視窗大約需要 10 秒:(

這是我的 zshrc 檔案：

export PATH=/usr/local/mysql/bin:$PATH
export PATH=$HOME/bin:$PATH
export PATH=$PATH:/usr/local/git/bin/
export HISTFILESIZE=5000
export PYTHONPATH="/usr/local/lib/python2.7/site-packages/:$PYTHONPATH"
#alias ls="ls -G"

export NODE_PATH="/usr/local/lib/node"
export PATH="/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/usr/local/share/npm/bin:$PATH"

#svndiff() {
#    svn diff $1 | colordiff.pl
#}

#hgdiff() {
#    hg diff $1 | colordiff.pl
#}
export WORKON_HOME=$HOME/.virtualenvs
source /usr/local/bin/virtualenvwrapper.sh

#PS1="$prompt_style"'${debian_chroot:+($debian_chroot)}\u@\h:\W\$'"$command_style "
#trap 'echo -ne "\033[00m"' DEBUG

export LANG="it_IT.UTF-8"
export LC_COLLATE="it_IT.UTF-8"
export LC_CTYPE="it_IT.UTF-8"
export LC_MESSAGES="it_IT.UTF-8"
export LC_MONETARY="it_IT.UTF-8"
export LC_NUMERIC="it_IT.UTF-8"
export LC_TIME="it_IT.UTF-8"
export LC_ALL=

#export CURL_CA_BUNDLE="$HOME/.curl/cacert.pem"

#Path to your oh-my-zsh configuration.
ZSH=$HOME/.oh-my-zsh

# Set name of the theme to load.
# Look in ~/.oh-my-zsh/themes/
# Optionally, if you set this to "random", it'll load a random theme each
# time that oh-my-zsh is loaded.
ZSH_THEME="cypher"

# Example aliases
# alias zshconfig="mate ~/.zshrc"
# alias ohmyzsh="mate ~/.oh-my-zsh"

# Set to this to use case-sensitive completion
# CASE_SENSITIVE="true"

# Comment this out to disable weekly auto-update checks
# DISABLE_AUTO_UPDATE="true"

# Uncomment following line if you want to disable colors in ls
# DISABLE_LS_COLORS="true"

# Uncomment following line if you want to disable autosetting terminal title.
# DISABLE_AUTO_TITLE="true"

# Uncomment following line if you want red dots to be displayed while waiting for completion
# COMPLETION_WAITING_DOTS="true"

# Which plugins would you like to load? (plugins can be found in ~/.oh-my-zsh/plugins/*)
# Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/
# Example format: plugins=(rails git textmate ruby lighthouse)
plugins=(fab osx pip django)

source $ZSH/oh-my-zsh.sh

# Customize to your needs...
export PATH=/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/usr/local/share/npm/bin:/Users/patrick/bin:/usr/local/mysql/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/local/git/bin/:$PATH

PATH=$PATH:$HOME/.rvm/bin # Add RVM to PATH for scripting
[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function


alias serve="python -m SimpleHTTPServer"

alias adb="~/Documents/android-sdk-macosx/platform-tools/adb"
alias fastboot="~/Documents/android-sdk-macosx/platform-tools/fastboot"

是的，有很多問題，可以幫我檢查一下是什麼原因造成的嗎？

謝謝 ：）

答案1

您是否嘗試過刪除 Apple 系統日誌？

http://ariejan.net/2011/11/08/fixing-a-slow-starting-terminal-or-iterm2-on-mac-os-x/

如果這不能解決問題，請將您的 zshrc 移到一邊mv .zshrc zshrc.testing，如果這樣可以更快地註釋掉每一行，並慢慢地一次一行地取消註釋，直到您看到是什麼減慢了速度。

答案2

使用 iTerm2，您可以透過設定來追蹤初始化

Preferences -> Profiles -> [Your Profile, or Default] -> General -> Command

來自「登入外殼」。到：

/bin/zsh -i -x

-x 將在顯示提示符號之前顯示 .zshrc （和 /etc/profile）正在執行的命令。

使用 iTerm2 日誌記錄，您可以記錄每個命令的運行時間，並大致了解哪些命令佔用了大部分時間。

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