From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:59345) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UIyN0-0006Qy-9G for qemu-devel@nongnu.org; Fri, 22 Mar 2013 05:34:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UIyMy-0003ZZ-39 for qemu-devel@nongnu.org; Fri, 22 Mar 2013 05:34:42 -0400 Received: from mx1.redhat.com ([209.132.183.28]:12505) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UIyMx-0003ZL-Rf for qemu-devel@nongnu.org; Fri, 22 Mar 2013 05:34:40 -0400 Message-ID: <514C25A9.4020206@redhat.com> Date: Fri, 22 Mar 2013 10:34:33 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <20130315192120.GF26815@fries.net> <514429E5.2010003@redhat.com> <20130321075334.GA17306@fries.net> <514AC40F.6070106@redhat.com> <20130322070854.GA5696@fries.net> In-Reply-To: <20130322070854.GA5696@fries.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] large memory requirements for translate.c a barrier List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: todd@fries.net Cc: qemu-devel@nongnu.org Il 22/03/2013 08:08, qemu-devel@email.fries.net ha scritto: > Penned by Paolo Bonzini on 20130321 3:25.51, we have: > | Il 21/03/2013 08:53, qemu-devel@email.fries.net ha scritto: > | > load averages: 6.74, 6.23, 5.17 leveno.fries.net 02:42:23 > | > 201 processes: 200 idle, 1 on processor > | > CPU0 states: 0.4% user, 0.0% nice, 33.3% system, 37.1% interrupt, 29.1% idle > | > CPU1 states: 0.2% user, 0.0% nice, 64.5% system, 0.0% interrupt, 35.3% idle > | > Memory: Real: 359M/907M act/tot Free: 80M Cache: 46M Swap: 1076M/4095M > | > Seconds to delay: > | > PID USERNAME PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND > | > 19820 todd -5 0 1116M 38M sleep/1 biowait 2:54 14.75% cc1 > | > > | > todd@leveno/pE ~???239$ ps awwwx | grep cc1 > | > 19820 pz D+ 2:49.61 /usr/lib/gcc-lib/i386-unknown-openbsd5.3/4.2.1/cc1 -fpreprocessed /home/todd/.ccache/tmp/translate.tmp.leveno.fries.net.1478.i -quiet -dumpbase translate.tmp.leveno.fries.net.1478.i -m32 -auxbase-strip /home/todd/.ccache/6/2/648c89832d69fca8ff8953cca44f28-1086936.o.tmp.leveno.fries.net.1478 -g -O2 -Wstrict-prototypes -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -Wno-redundant-decls -Wendif-labels -Wmissing-include-dirs -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wold-style-definition -fPIE -fno-strict-aliasing -fno-gcse -fstack-protector-all -o /home/todd/.tmp/cc1YGXzU.s > | > > | > Reading specs from /usr/lib/gcc-lib/i386-unknown-openbsd5.3/4.2.1/specs > | > Target: i386-unknown-openbsd5.3 > | > Configured with: OpenBSD/i386 system compiler > | > Thread model: posix > | > gcc version 4.2.1 20070719 > | > > | > | That's an older GCC than the one I was using. For you it may be > | -fno-var-tracking. > > Still no joy: > > PID USERNAME PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND > 21212 todd -5 20 1142M 118M sleep/0 - 1:03 37.30% cc1 > > cc -I. -I/home/todd/git/sw/3rdParty/qemu -I/home/todd/git/sw/3rdParty/qemu/include -I/home/todd/git/sw/3rdParty/qemu/tcg -I/home/todd/git/sw/3rdParty/qemu/tcg/i386 -fPIE -DPIE -m32 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -I/usr/local/include -I/usr/X11R6/include -Wno-redundant-decls -DTIME_MAX=INT_MAX -fno-gcse -fno-var-tracking -fstack-protector-all -Wendif-labels -Wmissing-include-dirs -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wold-style-definition -I/usr/local/include/libpng -I/usr/X11R6/include/pixman-1 -DHAS_AUDIO -DHAS_AUDIO_CHOICE -I/home/todd/git/sw/3rdParty/qemu/target-i386 -Itarget-i386 -I.. -I/home/todd/git/sw/3rdParty/qemu/target-i386 -DNEED_CPU_H -I/home/todd/git/sw/3rdParty/qemu/include -pthread -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include -I/usr/local/include -MMD -MP -MT target-i386/kvm-stub! .o -MF tar get-i386/kvm-stub.d -O2 -D_FORTIFY_SOURCE=2 -g -c -o target-i386/kvm-stub.o /home/todd/git/sw/3rdParty/qemu/target-i386/kvm-stub.c Please try -fmem-report or -ftime-report and see where the time is spent. Alternatively, just compile with -O1 or even -O0. Paolo