From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: Example / partial fix for printf with math expressions
Date: Mon, 26 Feb 2024 09:12:50 -0800 [thread overview]
Message-ID: <CAH+w=7YHDnTkZB2j2i3rtww0DSO7m=+vhggO6L0rwmhtKWampg@mail.gmail.com> (raw)
In-Reply-To: <CAH+w=7bZBQNvft8cqQ7CahMsF9=cMGEYTbpfLOidQH=4kc5HeA@mail.gmail.com>
On Sun, Feb 25, 2024 at 4:04 PM Bart Schaefer <schaefer@brasslantern.com> wrote:
>
> However, I think you could change META_HEAPDUP and META_USEHEAP to
> META_NOALLOC, becuase you're re-metafying back into the same space
> that was originally unmetafied? That might cut the performance
> penalty a lot.
No metafication:
zsh -c 'repeat 1000 printf %d 123_456+{1..10000}' > /dev/null 7.51s
user 0.39s system 99% cpu 7.907 total
USEHEAP:
Src/zsh -c 'repeat 1000 printf %d 123_456+{1..10000}' > /dev/null
8.62s user 0.59s system 99% cpu 9.218 total
NOALLOC:
Src/zsh -c 'repeat 1000 printf %d 123_456+{1..10000}' > /dev/null
7.89s user 0.36s system 99% cpu 8.255 total
All of this is with full debugging, an optimized compile might change it.
prev parent reply other threads:[~2024-02-26 17:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-23 23:23 Bart Schaefer
2024-02-24 14:40 ` Stephane Chazelas
2024-02-24 15:10 ` Stephane Chazelas
2024-02-24 21:51 ` Bart Schaefer
2024-02-25 6:54 ` Stephane Chazelas
2024-02-26 0:04 ` Bart Schaefer
2024-02-26 17:12 ` Bart Schaefer [this message]
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