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From: Roman Perepelitsa <roman.perepelitsa@gmail.com>
Date: Thu, 5 Sep 2019 21:00:01 +0200
Message-ID: <CAN=4vMrczC24GEH45UBaOtQY7rthiyWupmhPdJA+VgKuBnzobg@mail.gmail.com>
Subject: Re: slow startup of zsh (1x slower than bash)
To: Peng Yu <pengyu.ut@gmail.com>
Cc: julien.nicoulaud@gmail.com, Sebastian Gniazdowski <sgniazdowski@gmail.com>, 
	zsh-users <zsh-users@zsh.org>
Content-Type: text/plain; charset="UTF-8"

On Wed, Sep 4, 2019 at 12:15 PM Peng Yu <pengyu.ut@gmail.com> wrote:
>
> Are there any consensus on how fast is zsh starting time compared with
> other shells? My test was on Mac via homebrew.

You need to pass -d to zsh to make benchmarks fair. Otherwise zsh is
sourcing global configs while bash doesn't.

    time ( repeat 1000 zsh -df -c '' )
    time ( repeat 1000 bash -c '' )

I get 4 ms and 3 ms for zsh and bash respectively.

Note that this number has virtually no bearing on interactive shell
startup time.

Roman.