From owner-freebsd-questions@FreeBSD.ORG  Mon Aug 13 04:57:53 2007
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id B3C4816A468
	for <freebsd-questions@freebsd.org>;
	Mon, 13 Aug 2007 04:57:53 +0000 (UTC)
	(envelope-from mkhitrov@gmail.com)
Received: from rv-out-0910.google.com (rv-out-0910.google.com [209.85.198.191])
	by mx1.freebsd.org (Postfix) with ESMTP id 8ED9B13C491
	for <freebsd-questions@freebsd.org>;
	Mon, 13 Aug 2007 04:57:53 +0000 (UTC)
	(envelope-from mkhitrov@gmail.com)
Received: by rv-out-0910.google.com with SMTP id f1so951433rvb
	for <freebsd-questions@freebsd.org>;
	Sun, 12 Aug 2007 21:57:53 -0700 (PDT)
DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta;
	h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
	b=NHOHNu9Jo1FL99JFY0yjCk++R8XvEeaf3+hrNYGsNRWk0Hbrq3Xc8RXVULwjqeYW0SHviChFyKRHTP/KiX/j8soCM2+k/S1Km5QQXVw6O+dqQzQeD4Gb1NAYm3dwPJUgRnrR6BhYGOjLGepBsmvCxb6XNBa9FyRKnWzbf4g8quI=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta;
	h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
	b=CC7rLOAoLKh1M6qRHMkZuUdZdjkpauI0vFBxLrpUXM4Q+culdMxgIX5AxaUrLvQumL7wyavArY1xLfl2HiXExBwpC8wPtno/AwtugLu5nDS/+JJ2jtkyc2akVeR9p3HwM5xAcF6dGTT26VO5fWmXS2201PfYXFhmPuUE/NkjDMI=
Received: by 10.142.225.11 with SMTP id x11mr626066wfg.1186981073247;
	Sun, 12 Aug 2007 21:57:53 -0700 (PDT)
Received: by 10.143.10.17 with HTTP; Sun, 12 Aug 2007 21:57:53 -0700 (PDT)
Message-ID: <26ddd1750708122157n70e6b832p33d378c75c8fd698@mail.gmail.com>
Date: Mon, 13 Aug 2007 00:57:53 -0400
From: "Maxim Khitrov" <mkhitrov@gmail.com>
To: freebsd-questions@freebsd.org
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Subject: ccache never "hits" on buildworld or buildkernel
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 13 Aug 2007 04:57:53 -0000

Hello,

I'm using ccache to build FreeBSD source and ports. Ports work great,
I build something once and the second time just about everything is
found in the cache. For buildworld and buildkernel, however,
everything is a miss. Even when not a single thing changed about the
configuration or the actual source files.

Below is my make.conf configuration for ccache. Ccache is being used
via world-cc and world-c++ binaries for these two operations; I can
see the miss counter go up in 'ccache -s'. Why is it unable to
properly cache when building the source?

Thanks.

make.conf:

.if (!empty(.CURDIR:M/usr/src*) || !empty(.CURDIR:M/usr/obj*)) && \
    !defined(NOCCACHE) && exists(/usr/local/libexec/ccache)
CC= /usr/local/libexec/ccache/world-cc
CXX=/usr/local/libexec/ccache/world-c++
.endif

.if !empty(.CURDIR:M/usr/ports*) && !defined(NOCCACHE) \
    && exists(/usr/local/libexec/ccache)
CC= /usr/local/libexec/ccache/cc
CXX=/usr/local/libexec/ccache/c++
.endif

uname -a:

FreeBSD -.-.- 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Sun Aug 12 15:45:05
EDT 2007     max@-.-.-:/usr/obj/usr/src/sys/KERNEL  i386