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Subject: Re: zsh slow and hogs cpu when using */*/*.ext on large file tree
To: Sebastian Gniazdowski <sgniazdowski@gmail.com>
References: <566B1D81.2090106@gmail.com>
 <CAKc7PVCWwtjgrT3UC1X7a7DkD7KXS02SdDwbA7Zu66fw_SDrKw@mail.gmail.com>
Cc: zsh-users@zsh.org
From: KARBOWSKI Piotr <piotr.karbowski@gmail.com>
Message-ID: <566C4623.1020205@gmail.com>
Date: Sat, 12 Dec 2015 17:06:59 +0100
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Hello,

On 12/11/2015 10:46 PM, Sebastian Gniazdowski wrote:
> What version of Zsh? 5.2 has optimizations that could help. Could you
> compare speeds?

That was 5.1.1, update to 5.2 and it seems to be faster, but still many 
times slower than bash.


# time zsh -c 'cd /usr/portage && ls */*/*.ebuild >/dev/null'
zsh -c 'cd /usr/portage && ls */*/*.ebuild >/dev/null'  2.36s user 0.13s 
system 99% cpu 2.493 total

# time bash -c 'cd /usr/portage && ls */*/*.ebuild >/dev/null'
bash -c 'cd /usr/portage && ls */*/*.ebuild >/dev/null'  0.12s user 
0.11s system 98% cpu 0.236 total

-- Piotr.