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218 lines
7.8 KiB
218 lines
7.8 KiB
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/*--------------------------------------------------------------------*/ |
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/*--- For printing superblock profiles m_sbprofile.c ---*/ |
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/*--------------------------------------------------------------------*/ |
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/* |
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This file is part of Valgrind, a dynamic binary instrumentation |
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framework. |
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Copyright (C) 2012-2017 Mozilla Foundation |
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This program is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License as |
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published by the Free Software Foundation; either version 2 of the |
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License, or (at your option) any later version. |
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This program is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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02111-1307, USA. |
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The GNU General Public License is contained in the file COPYING. |
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*/ |
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/* Contributed by Julian Seward <jseward@acm.org> */ |
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#include "pub_core_basics.h" |
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#include "pub_core_transtab.h" |
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#include "pub_core_libcbase.h" |
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#include "pub_core_libcprint.h" |
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#include "pub_core_libcassert.h" |
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#include "pub_core_debuginfo.h" |
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#include "pub_core_translate.h" |
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#include "pub_core_options.h" |
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#include "pub_core_sbprofile.h" // self |
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/*====================================================================*/ |
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/*=== SB profiling ===*/ |
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/*====================================================================*/ |
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static UInt n_profiles = 0; |
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static |
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void show_SB_profile ( const SBProfEntry tops[], UInt n_tops, |
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ULong score_total, ULong ecs_done ) |
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{ |
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ULong score_cumul, score_cumul_saved, score_here; |
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Int r; /* must be signed */ |
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HChar ecs_txt[50]; // large enough |
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if (ecs_done > 0) { |
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VG_(sprintf)(ecs_txt, "%'llu ecs done", ecs_done); |
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} else { |
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VG_(strcpy)(ecs_txt, "for the entire run"); |
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} |
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vg_assert(VG_(clo_profyle_sbs)); |
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VG_(printf)("\n"); |
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VG_(printf)("<<<---<<<---<<<---<<<---<<<---<<<---<<<---" |
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"<<<---<<<---<<<---<<<---<<<---<<<\n"); |
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VG_(printf)("<<<---<<<---<<<---<<<---<<<---<<<---<<<---" |
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"<<<---<<<---<<<---<<<---<<<---<<<\n"); |
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VG_(printf)("\n"); |
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VG_(printf)("<<< BEGIN SB Profile #%u (%s)\n", |
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++n_profiles, ecs_txt); |
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VG_(printf)("<<<\n"); |
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VG_(printf)("\n"); |
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VG_(printf)("Total score = %'llu\n\n", score_total); |
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/* Print an initial per-block summary. */ |
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VG_(printf)("rank ---cumulative--- -----self-----\n"); |
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score_cumul = 0; |
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for (r = 0; r < n_tops; r++) { |
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if (tops[r].addr == 0) |
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continue; |
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if (tops[r].score == 0) |
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continue; |
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const HChar *name; |
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VG_(get_fnname_w_offset)(tops[r].addr, &name); |
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score_here = tops[r].score; |
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score_cumul += score_here; |
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/* Careful: do not divide by zero. score_total == 0 implies |
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score_cumul == 0 and also score_here == 0. */ |
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Double percent_cumul = |
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score_total == 0 ? 100.0 : score_cumul * 100.0 / score_total; |
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Double percent_here = |
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score_total == 0 ? 100.0 : score_here * 100.0 / score_total; |
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VG_(printf)("%3d: (%9llu %5.2f%%) %9llu %5.2f%% 0x%lx %s\n", |
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r, |
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score_cumul, percent_cumul, |
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score_here, percent_here, tops[r].addr, name); |
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} |
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score_cumul_saved = score_cumul; |
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if (VG_(clo_profyle_flags) > 0) { |
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/* Show the details, if requested. */ |
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VG_(printf)("\n"); |
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VG_(printf)("-----------------------------" |
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"------------------------------\n"); |
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VG_(printf)("--- SB Profile (SB details) " |
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" ---\n"); |
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VG_(printf)("-----------------------------" |
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"------------------------------\n"); |
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VG_(printf)("\n"); |
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score_cumul = 0; |
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for (r = 0; r < n_tops; r++) { |
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if (tops[r].addr == 0) |
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continue; |
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if (tops[r].score == 0) |
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continue; |
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const HChar *name; |
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VG_(get_fnname_w_offset)(tops[r].addr, &name); |
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score_here = tops[r].score; |
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score_cumul += score_here; |
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/* Careful: do not divide by zero. score_total == 0 implies |
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score_cumul == 0 and also score_here == 0. */ |
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Double percent_cumul = |
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score_total == 0 ? 100.0 : score_cumul * 100.0 / score_total; |
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Double percent_here = |
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score_total == 0 ? 100.0 : score_here * 100.0 / score_total; |
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VG_(printf)("\n"); |
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VG_(printf)("=-=-=-=-=-=-=-=-=-=-=-=-=-= begin SB rank %d " |
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"=-=-=-=-=-=-=-=-=-=-=-=-=-=\n\n", r); |
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VG_(printf)("%3d: (%9llu %5.2f%%) %9llu %5.2f%% 0x%lx %s\n", |
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r, |
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score_cumul, percent_cumul, |
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score_here, percent_here, tops[r].addr, name ); |
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VG_(printf)("\n"); |
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VG_(discard_translations)(tops[r].addr, 1, "bb profile"); |
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VG_(translate)(0, tops[r].addr, True, VG_(clo_profyle_flags), 0, True); |
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VG_(printf)("=-=-=-=-=-=-=-=-=-=-=-=-=-= end SB rank %d " |
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"=-=-=-=-=-=-=-=-=-=-=-=-=-=\n\n", r); |
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} |
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/* Print a final per-block summary, in reverse order, for the |
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convenience of people reading up from the end. */ |
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score_cumul = score_cumul_saved; |
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for (r = n_tops-1; r >= 0; r--) { |
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if (tops[r].addr == 0) |
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continue; |
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if (tops[r].score == 0) |
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continue; |
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const HChar *name; |
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VG_(get_fnname_w_offset)(tops[r].addr, &name); |
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score_here = tops[r].score; |
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/* Careful: do not divide by zero. score_total == 0 implies |
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score_cumul == 0 and also score_here == 0. */ |
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Double percent_cumul = |
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score_total == 0 ? 100.0 : score_cumul * 100.0 / score_total; |
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Double percent_here = |
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score_total == 0 ? 100.0 : score_here * 100.0 / score_total; |
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VG_(printf)("%3d: (%9llu %5.2f%%) %9llu %5.2f%% 0x%lx %s\n", |
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r, |
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score_cumul, percent_cumul, |
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score_here, percent_here, tops[r].addr, name ); |
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score_cumul -= score_here; |
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} |
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VG_(printf)("rank ---cumulative--- -----self-----\n"); |
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} |
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VG_(printf)("\n"); |
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VG_(printf)(">>>\n"); |
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VG_(printf)(">>> END SB Profile #%u (%s)\n", |
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n_profiles, ecs_txt); |
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VG_(printf)(">>>\n"); |
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VG_(printf)(">>>--->>>--->>>--->>>--->>>--->>>--->>>---" |
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">>>--->>>--->>>--->>>--->>>--->>>\n"); |
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VG_(printf)(">>>--->>>--->>>--->>>--->>>--->>>--->>>---" |
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">>>--->>>--->>>--->>>--->>>--->>>\n"); |
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VG_(printf)("\n"); |
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} |
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/* Get and print a profile. Also, zero out the counters so that if we |
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call it again later, the second call will only show new work done |
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since the first call. ecs_done == 0 is taken to mean this is a |
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run-end profile. */ |
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void VG_(get_and_show_SB_profile) ( ULong ecs_done ) |
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{ |
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/* The number of blocks to show for a end-of-run profile */ |
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# define N_MAX_END 200 |
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/* The number of blocks to show for a mid-run profile. */ |
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# define N_MAX_INTERVAL 20 |
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vg_assert(N_MAX_INTERVAL <= N_MAX_END); |
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SBProfEntry tops[N_MAX_END]; |
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Int nToShow = ecs_done == 0 ? N_MAX_END : N_MAX_INTERVAL; |
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ULong score_total = VG_(get_SB_profile)(tops, nToShow); |
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show_SB_profile(tops, nToShow, score_total, ecs_done); |
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# undef N_MAX_END |
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# undef N_MAX_INTERVAL |
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} |
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/*--------------------------------------------------------------------*/ |
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/*--- end m_sbprofile.c ---*/ |
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/*--------------------------------------------------------------------*/
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