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From: "hubicka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/44563] GCC uses a lot of RAM when compiling a large numbers of functions Date: Mon, 13 Dec 2010 01:07:00 -0000 [thread overview] Message-ID: <bug-44563-4-VTYnPubC9c@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-44563-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44563 --- Comment #8 from Jan Hubicka <hubicka at gcc dot gnu.org> 2010-12-13 01:07:33 UTC --- My profile was at -O2. Concerning Jakub's callgrind, the -O0 compilation finishes in about 44s for me. Profile is: 4349 3.8607 libc-2.11.1.so libc-2.11.1.so _int_malloc 3150 2.7963 cc1 cc1 record_reg_classes.constprop.9 2881 2.5575 cc1 cc1 htab_find_slot_with_hash 2104 1.8678 cc1 cc1 ggc_set_mark 2039 1.8101 libc-2.11.1.so libc-2.11.1.so msort_with_tmp 2005 1.7799 cc1 cc1 bitmap_set_bit 1836 1.6299 cc1 cc1 df_ref_create_structure 1775 1.5757 cc1 cc1 find_reloads 1738 1.5429 cc1 cc1 ggc_internal_alloc_stat 1538 1.3653 libc-2.11.1.so libc-2.11.1.so memset 1430 1.2694 cc1 cc1 eq_node 1375 1.2206 cc1 cc1 preprocess_constraints 1317 1.1691 libc-2.11.1.so libc-2.11.1.so _int_free 1309 1.1620 cc1 cc1 df_insn_refs_collect 1289 1.1443 cc1 cc1 ix86_function_arg_regno_p 1277 1.1336 cc1 cc1 df_ref_record 1249 1.1088 cc1 cc1 ix86_save_reg 1215 1.0786 cc1 cc1 ix86_compute_frame_layout 1171 1.0395 libc-2.11.1.so libc-2.11.1.so malloc_consolidate 1134 1.0067 cc1 cc1 extract_insn So I don't get that much of RA by itself. Tracking that malloc ineffeciency might be low hanging fruit.
next prev parent reply other threads:[~2010-12-13 1:07 UTC|newest] Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <bug-44563-4@http.gcc.gnu.org/bugzilla/> 2010-12-12 23:55 ` hubicka at gcc dot gnu.org 2010-12-13 0:58 ` hubicka at gcc dot gnu.org 2010-12-13 1:00 ` hubicka at gcc dot gnu.org 2010-12-13 1:07 ` hubicka at gcc dot gnu.org [this message] 2010-12-13 1:17 ` hubicka at gcc dot gnu.org 2010-12-13 1:47 ` hubicka at gcc dot gnu.org 2010-12-13 13:22 ` hubicka at gcc dot gnu.org 2010-12-17 0:08 ` hubicka at gcc dot gnu.org 2015-03-07 0:22 ` hubicka at gcc dot gnu.org 2015-03-09 9:36 ` rguenth at gcc dot gnu.org 2015-03-09 11:33 ` rguenth at gcc dot gnu.org 2015-03-09 15:26 ` rguenth at gcc dot gnu.org 2015-03-09 15:36 ` rguenth at gcc dot gnu.org 2015-03-10 4:55 ` hubicka at ucw dot cz 2015-03-10 8:26 ` rguenth at gcc dot gnu.org 2015-03-10 8:35 ` rguenther at suse dot de 2015-03-10 11:54 ` rguenth at gcc dot gnu.org 2015-03-10 12:03 ` rguenth at gcc dot gnu.org 2015-03-10 12:31 ` jakub at gcc dot gnu.org 2015-03-10 12:44 ` rguenth at gcc dot gnu.org 2015-03-10 12:51 ` rguenther at suse dot de 2015-03-10 13:19 ` rguenth at gcc dot gnu.org 2015-03-12 15:09 ` rguenth at gcc dot gnu.org 2015-03-13 8:43 ` [Bug ipa/44563] " rguenth at gcc dot gnu.org 2015-03-13 8:47 ` rguenth at gcc dot gnu.org 2015-03-13 8:53 ` rguenth at gcc dot gnu.org 2015-03-13 8:55 ` rguenth at gcc dot gnu.org 2015-03-16 0:07 ` hubicka at ucw dot cz 2024-02-16 13:52 ` rguenth at gcc dot gnu.org 2010-06-17 4:10 [Bug c/44563] New: " jvoss at altsci dot com 2010-06-17 4:14 ` [Bug tree-optimization/44563] " jvoss at altsci dot com 2010-06-17 10:37 ` rguenth at gcc dot gnu dot org 2010-06-17 10:45 ` rguenth at gcc dot gnu dot org 2010-06-17 12:28 ` jakub at gcc dot gnu dot org
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