From: Peng Yu <pengyu.ut@gmail.com>
To: zsh-users <zsh-users@zsh.org>
Subject: slow startup of zsh (1x slower than bash)
Date: Mon, 3 Dec 2018 10:27:16 -0600 [thread overview]
Message-ID: <CABrM6wk-psFFZcZW+M7OwD0ZwrMbNk4MN7e9aaJF9kBOFsVK4w@mail.gmail.com> (raw)
Hi,
The following example shows that zsh startup time is much slower than
other shells. Can this be improved to at least as fast as bash?
==> main.sh <==
#!/usr/bin/env bash
# vim: set noexpandtab tabstop=2:
set -v
TIMEFORMAT=%R
time for ((i=0;i<100;++i))
do
:
done
time for ((i=0;i<100;++i))
do
./script.sh
done
time for ((i=0;i<100;++i))
do
./script.dash
done
time for ((i=0;i<100;++i))
do
./script.bash
done
time for ((i=0;i<100;++i))
do
./script.ksh
done
time for ((i=0;i<100;++i))
do
./script.zsh
done
==> script.bash <==
#!/usr/local/bin/bash
==> script.dash <==
#!/usr/local/bin/dash
==> script.ksh <==
#!/usr/local/bin/ksh
==> script.sh <==
#!/bin/sh
==> script.zsh <==
#!/usr/local/bin/zsh
$ ./main.sh
TIMEFORMAT=%R
time for ((i=0;i<100;++i))
do
:
done
0.001
time for ((i=0;i<100;++i))
do
./script.sh
done
0.339
time for ((i=0;i<100;++i))
do
./script.dash
done
0.387
time for ((i=0;i<100;++i))
do
./script.bash
done
0.486
time for ((i=0;i<100;++i))
do
./script.ksh
done
0.538
time for ((i=0;i<100;++i))
do
./script.zsh
done
0.953
--
Regards,
Peng
next reply other threads:[~2018-12-03 16:27 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-03 16:27 Peng Yu [this message]
2018-12-03 17:37 ` Vadim A. Misbakh-Soloviov
2018-12-07 2:19 ` Sebastian Gniazdowski
2018-12-07 2:57 ` Peng Yu
2018-12-07 16:13 ` Julien Nicoulaud
2018-12-07 16:58 ` Peng Yu
2018-12-07 18:06 ` dana
2019-09-04 10:13 ` Peng Yu
2019-09-05 19:00 ` Roman Perepelitsa
2019-09-05 20:30 ` Peng Yu
2019-09-05 20:37 ` Roman Perepelitsa
2019-09-05 20:45 ` Peng Yu
2019-09-05 21:19 ` Kaio Augusto
2019-09-06 9:35 ` Roman Perepelitsa
2019-09-06 12:57 ` Peng Yu
2019-09-06 13:11 ` Roman Perepelitsa
2019-09-06 13:19 ` Sebastian Gniazdowski
2019-09-06 13:44 ` Peng Yu
2019-09-06 14:10 ` Roman Perepelitsa
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