From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4580 invoked by alias); 25 Jan 2007 16:30:51 -0000 Received: (qmail 3847 invoked by uid 48); 25 Jan 2007 16:30:34 -0000 Date: Thu, 25 Jan 2007 16:30:00 -0000 Subject: [Bug java/30588] New: gcj compiler large jars much slower X-Bugzilla-Reason: CC Message-ID: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "mark at gcc dot gnu dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2007-01/txt/msg02160.txt.bz2 An example from frysk: $ /usr/bin/gcj -v Using built-in specs. Reading specs from /usr/lib/gcc/x86_64-redhat-linux/4.1.1/libgcj.spec rename spec startfile to startfileorig rename spec lib to liborig Target: x86_64-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-libgcj-multifile --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --enable-plugin --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --with-cpu=generic --host=x86_64-redhat-linux Thread model: posix gcc version 4.1.1 20070105 (Red Hat 4.1.1-51) $ /home/mark/src/gcc-install/bin/gcj -v Using built-in specs. Reading specs from /home/mark/src/gcc-install/lib/gcc/x86_64-unknown-linux-gnu/4.3.0/../../../libgcj.spec rename spec startfile to startfileorig rename spec lib to liborig Target: x86_64-unknown-linux-gnu Configured with: /home/mark/src/gcc/configure --prefix=/home/mark/src/gcc-install --enable-java-awt=gtk --disable-bootstrap --disable-checking --enable-plugin --enable-languages=c,c++,java Thread model: posix gcc version 4.3.0 20070125 (experimental) $ time /usr/bin/gcj -I../../frysk/frysk-imports -I. -Igetopt.jar -Ijunit.jar -Werror -Wall -fPIC -g -O -fjni -c antlr.jar real 0m36.455s user 0m35.666s sys 0m0.644s $ time /home/mark/src/gcc-install/bin/gcj -I../../frysk/frysk-imports -I. -Igetopt.jar -Ijunit.jar -Werror -Wall -fPIC -g -O -fjni -c antlr.jar real 0m51.691s user 0m50.643s sys 0m0.760s Compiling with -ftime-report gives a hint where this might come from: 4.3 (trunk): tree PTA : 3.80 ( 8%) usr 0.02 ( 1%) sys 3.79 ( 7%) wall 25485 kB ( 2%) ggc tree alias analysis : 10.41 (21%) usr 0.50 (21%) sys 10.83 (21%) wall 600226 kB (42%) ggc With 4.1.1 it is: tree PTA : 5.80 (17%) usr 0.05 ( 3%) sys 5.54 (15%) wall 45994 kB ( 5%) ggc tree alias analysis : 1.48 ( 4%) usr 0.37 (21%) sys 1.90 ( 5%) wall 16749 kB ( 2%) ggc -- Summary: gcj compiler large jars much slower Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: java AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: mark at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30588