From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-workers-return-21162-mason-zsh=primenet.com.au@sunsite.dk>
Received: (qmail 5597 invoked from network); 23 Apr 2005 16:07:43 -0000
Received: from news.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.88)
  by ns1.primenet.com.au with SMTP; 23 Apr 2005 16:07:43 -0000
Received: (qmail 42943 invoked from network); 23 Apr 2005 16:07:35 -0000
Received: from sunsite.dk (130.225.247.90)
  by a.mx.sunsite.dk with SMTP; 23 Apr 2005 16:07:35 -0000
Received: (qmail 25920 invoked by alias); 23 Apr 2005 16:07:29 -0000
Mailing-List: contact zsh-workers-help@sunsite.dk; run by ezmlm
Precedence: bulk
X-No-Archive: yes
X-Seq: 21162
Received: (qmail 25910 invoked from network); 23 Apr 2005 16:07:28 -0000
Received: from news.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.88)
  by sunsite.dk with SMTP; 23 Apr 2005 16:07:28 -0000
Received: (qmail 42291 invoked from network); 23 Apr 2005 16:07:28 -0000
Received: from vms040pub.verizon.net (206.46.252.40)
  by a.mx.sunsite.dk with SMTP; 23 Apr 2005 16:07:25 -0000
Received: from candle.brasslantern.com ([4.11.1.68])
 by vms040.mailsrvcs.net (Sun Java System Messaging Server 6.2 HotFix 0.04
 (built Dec 24 2004)) with ESMTPA id <0IFE00AAVQ4AZBK2@vms040.mailsrvcs.net> for
 zsh-workers@sunsite.dk; Sat, 23 Apr 2005 11:07:23 -0500 (CDT)
Received: from candle.brasslantern.com (IDENT:schaefer@localhost [127.0.0.1])
	by candle.brasslantern.com (8.12.11/8.12.11) with ESMTP id j3NG7MTp004471	for
 <zsh-workers@sunsite.dk>; Sat, 23 Apr 2005 09:07:22 -0700
Received: (from schaefer@localhost)	by candle.brasslantern.com
 (8.12.11/8.12.11/Submit) id j3NG7MxG004470	for zsh-workers@sunsite.dk; Sat,
 23 Apr 2005 09:07:22 -0700
Date: Sat, 23 Apr 2005 16:07:21 +0000
From: Bart Schaefer <schaefer@brasslantern.com>
Subject: Re: replacement slowdown
In-reply-to: <20050423031907.GA27233@scowler.net>
To: zsh-workers@sunsite.dk
Message-id: <1050423160721.ZM4469@candle.brasslantern.com>
MIME-version: 1.0
X-Mailer: Z-Mail (5.0.0 30July97)
Content-type: text/plain; charset=us-ascii
References: <20050422232316.GA27665@scowler.net>
	<1050423031422.ZM3881@candle.brasslantern.com>
	<20050423031907.GA27233@scowler.net>
Comments: In reply to Clint Adams <clint@zsh.org>
 "Re: replacement slowdown" (Apr 22, 11:19pm)
X-Spam-Checker-Version: SpamAssassin 3.0.2 on a.mx.sunsite.dk
X-Spam-Level: 
X-Spam-Status: No, score=-2.6 required=6.0 tests=AWL,BAYES_00 autolearn=ham 
	version=3.0.2
X-Spam-Hits: -2.6

On Apr 22, 11:19pm, Clint Adams wrote:
}
} Well, I haven't profiled 4.2.1, but in 4.2.5, it's spending all its time
} in ztrsub (called 57093 times) in pattryrefs.

Is that a profile for the entire shell from startup to exit, or just
for the ${(f)"$(</tmp/blah)"//,/x} substitution?

Is zsh compiled with debugging (that is, with the DEBUG macro defined)?
ztrsub() shouldn't be particularly expensive, but it's a bit more so in
debugging mode.

Also, there's no loop in pattryrefs(), so the fact that it's in ztrsub()
may be misleading.  There are exactly 2 calls to ztrsub() in there.
What's calling pattryrefs() 28000+ times?  Is that how many lines there
are in /tmp/blah?