From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-users-return-21568-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 10446 invoked by alias); 16 May 2016 15:01:53 -0000
Mailing-List: contact zsh-users-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Users List <zsh-users.zsh.org>
List-Post: <mailto:zsh-users@zsh.org>
List-Help: <mailto:zsh-users-help@zsh.org>
X-Seq: 21568
Received: (qmail 14253 invoked from network); 16 May 2016 15:01:51 -0000
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM,
	T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.1
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=mime-version:in-reply-to:references:from:date:message-id:subject:to
         :cc;
        bh=cKNaYCJGOuZpsWYTxBGBvuHrRFCyC7nlJI6Gm8H07qY=;
        b=yqdz9WgPo8wEeotLfjJO3+3U6nrAxFiHgRktzevb+sc6KVe3LP5BQS5erYLpEcxEhi
         Vi6g+V7DSW0+/libFQfQllJpShdRMd3sQ3Xq3byB6At3PL8SZNFdfdML1F/Nx3BhDEYi
         TIhOej0LWz68UhDxo4z53usE0BFL8jj0NFPka6Hai+DsuhhWQLQGLU8dvGm8FUV0I+8W
         US5l4x9GGwx+ofgcHwyBg4oqi0YL7bxulpbNHAeopgxNrhJWA5hOoCjwk8jSaSIylP1G
         +PAc2SUgz+g+n/aM2E0Y6bfDntQgKa1WR32d4FcmF8xHfuhd4iw55XX0GkkPfeXjuaEx
         0gkQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20130820;
        h=x-gm-message-state:mime-version:in-reply-to:references:from:date
         :message-id:subject:to:cc;
        bh=cKNaYCJGOuZpsWYTxBGBvuHrRFCyC7nlJI6Gm8H07qY=;
        b=WPHEYa/M/h3YVfy/kptyKHW5THARqk5z4uFJZItK4pPCd784Z1381q01Qn2MFlff+7
         j3MVeJs7/3GRLTdvwCJ1WVOyY+DDNJehCDkcuvpMlE97o4pLnGnTm0JoMS/2E7GpJNe7
         yv6oXl50vjmuhfAbaAnKpOdqUAKH1hU2ilx7QONkGNxrwGLMft+SagbXMzenrVFbLjKO
         pPZAMvGg5oEmRb70i718z+Fuv9RmacqN/JuJ+X2kkWVSJ874mUD+ziC+LoVw8SML7ndd
         IOLhNKhVd1Vcr7t5KBYqUw9z96GEbTOC2nkPJG1oKBcbCkdpxY6mjWkcJiba3If8fLKi
         Hl2Q==
X-Gm-Message-State: AOPr4FVl6nqirTiTUE93BJekMvVIAAnDbGvHFIMowwJ31s2B9nCt3zcafZgHP+VxMBEzQyg6614lJvAVvPfqxg==
X-Received: by 10.112.27.233 with SMTP id w9mr11588164lbg.86.1463410907889;
 Mon, 16 May 2016 08:01:47 -0700 (PDT)
MIME-Version: 1.0
In-Reply-To: <160508093530.ZM9686@torch.brasslantern.com>
References: <CAKc7PVDRk2hx9i0T62fnD=v__1RbB9sPr5ni_mHXLojVa4sotA@mail.gmail.com>
 <160508093530.ZM9686@torch.brasslantern.com>
From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
Date: Mon, 16 May 2016 17:01:28 +0200
Message-ID: <CAKc7PVDaLHs3xEVJGFn1F2M0BEEOzZFt8enMis7tTmbVKLx12Q@mail.gmail.com>
Subject: Re: One more heap optimization trick for zsh < 5.2
To: Bart Schaefer <schaefer@brasslantern.com>
Cc: Zsh Users <zsh-users@zsh.org>
Content-Type: text/plain; charset=UTF-8

On 8 May 2016 at 18:35, Bart Schaefer <schaefer@brasslantern.com> wrote:
> If the size of $list is indeed the deciding factor here, I would
> suspect that you're now running into heap management during the
> pattern match against $~search_pattern, and there's really nothing
> at the level of shell coding that can change pattern match behavior.

I was testing the same input with 89k lines. The cause now
accidentally clarified. It's about zplugin's shadowing of autoload
function that does the neat trick that allows to copycat what autoload
does:

# declare -f n-list
n-list () {
    --zplg-reload-and-run
/Users/sgniazdowski/.zplugin/plugins/psprint---zsh-navigation-tools ''
n-list "$@"
}

https://github.com/psprint/zplugin/blob/28b615c6d728b22ec87a86026e7a463d731184ae/zplugin.zsh#L273-L287

First run is slow, second is normal and fast:

https://asciinema.org/a/99ercap3i6nri6ybiiayd0ejb

It's hard to describe what *reload-and-run does but you are the author
of this neat trick so I can skip this. How do you think what can be
happening inside Zsh?

Best regards,
Sebastian Gniazdowski