This is using valgrind compiled from GIT sources using my test program: [alvarok@YELLOWJACKET tarea5]$ valgrind -v ./principal ==45395== Memcheck, a memory error detector ==45395== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==45395== Using Valgrind-3.18.0.GIT-1bee3ab757-20210901 and LibVEX; rerun with -h for copyright info ==45395== Command: ./principal ==45395== --45395-- Valgrind options: --45395-- -v --45395-- Contents of /proc/version: --45395-- Linux version 5.13.13-200.fc34.x86_64 ( mockbu...@bkernel01.iad2.fedoraproject.org) (gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1), GNU ld version 2.35.2-5.fc34) #1 SMP Thu Aug 26 17:06:39 UTC 2021 --45395-- --45395-- Arch and hwcaps: AMD64, LittleEndian, amd64-cx16-lzcnt-rdtscp-sse3-ssse3-avx-avx2-bmi-f16c-rdrand-rdseed --45395-- Page sizes: currently 4096, max supported 4096 --45395-- Valgrind library directory: /usr/local/libexec/valgrind --45395-- Reading syms from /home/alvarok/Development/Skills/Prog2/Laboratorio/Tarea5/tarea5/principal --45395-- Reading syms from /usr/lib64/ld-2.33.so --45395-- Warning: cross-CU LIMITATION: some inlined fn names --45395-- might be shown as UnknownInlinedFun --45395-- Reading syms from /usr/local/libexec/valgrind/memcheck-amd64-linux --45395-- object doesn't have a dynamic symbol table --45395-- Scheduler: using generic scheduler lock implementation. --45395-- Reading suppressions file: /usr/local/libexec/valgrind/default.supp ==45395== embedded gdbserver: reading from /tmp/vgdb-pipe-from-vgdb-to-45395-by-alvarok-on-YELLOWJACKET ==45395== embedded gdbserver: writing to /tmp/vgdb-pipe-to-vgdb-from-45395-by-alvarok-on-YELLOWJACKET ==45395== embedded gdbserver: shared mem /tmp/vgdb-pipe-shared-mem-vgdb-45395-by-alvarok-on-YELLOWJACKET ==45395== ==45395== TO CONTROL THIS PROCESS USING vgdb (which you probably ==45395== don't want to do, unless you know exactly what you're doing, ==45395== or are doing some strange experiment): ==45395== /usr/local/libexec/valgrind/../../bin/vgdb --pid=45395 ...command... ==45395== ==45395== TO DEBUG THIS PROCESS USING GDB: start GDB like this ==45395== /path/to/gdb ./principal ==45395== and then give GDB the following command ==45395== target remote | /usr/local/libexec/valgrind/../../bin/vgdb --pid=45395 ==45395== --pid is optional if only one valgrind process is running ==45395== --45395-- REDIR: 0x4025130 (ld-linux-x86-64.so.2:strlen) redirected to 0x580b31e2 (vgPlain_amd64_linux_REDIR_FOR_strlen) --45395-- REDIR: 0x4024f00 (ld-linux-x86-64.so.2:index) redirected to 0x580b31fc (vgPlain_amd64_linux_REDIR_FOR_index) --45395-- Reading syms from /usr/local/libexec/valgrind/vgpreload_core-amd64-linux.so --45395-- Reading syms from /usr/local/libexec/valgrind/vgpreload_memcheck-amd64-linux.so ==45395== WARNING: new redirection conflicts with existing -- ignoring it --45395-- old: 0x04025130 (strlen ) R-> (0000.0) 0x580b31e2 vgPlain_amd64_linux_REDIR_FOR_strlen --45395-- new: 0x04025130 (strlen ) R-> (2007.0) 0x048463c0 strlen --45395-- REDIR: 0x4021910 (ld-linux-x86-64.so.2:strcmp) redirected to 0x4847220 (strcmp) --45395-- REDIR: 0x4025690 (ld-linux-x86-64.so.2:mempcpy) redirected to 0x484ac90 (mempcpy) --45395-- Reading syms from /usr/lib64/libstdc++.so.6.0.29 --45395-- Considering /usr/lib/debug/.build-id/bd/d633ff5da0bba64d19ecf277a9eed7001da127.debug .. --45395-- .. build-id is valid --45395-- Considering /usr/lib/debug/.build-id/bd/../../../../../usr/lib/debug/usr/lib64/../../.dwz/gcc-11.2.1-1.fc34.x86_64 .. --45395-- .. build-id is valid --45395-- Reading syms from /usr/lib64/libm-2.33.so --45395-- Considering /usr/lib/debug/.build-id/c1/784bbe8a93a6e62f74b16105a2076a03b398ac.debug .. --45395-- .. build-id is valid --45395-- Reading syms from /usr/lib64/libgcc_s-11-20210728.so.1 --45395-- Considering /usr/lib/debug/.build-id/46/e10c9ee769c5cfc7cdb638e3ccbc3169c0a949.debug .. --45395-- .. build-id is valid --45395-- Considering /usr/lib/debug/.build-id/46/../../../../../usr/lib/debug/lib64/../.dwz/gcc-11.2.1-1.fc34.x86_64 .. --45395-- .. build-id is valid --45395-- Reading syms from /usr/lib64/libc-2.33.so --45395-- Considering /usr/lib/debug/.build-id/9d/e0f6e78ec16db4c6c167efc6b37466705edeff.debug .. --45395-- .. build-id is valid --45395-- Considering /usr/lib/debug/.build-id/9d/../../../../../usr/lib/debug/lib64/../.dwz/glibc-2.33-20.fc34.x86_64 .. --45395-- .. build-id is valid --45395-- REDIR: 0x4c6eee0 (libc.so.6:memmove) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) ==45395== Preferring higher priority redirection: --45395-- old: 0x04d41710 (__memcpy_avx_unalign) R-> (2018.0) 0x04848470 __memcpy_avx_unaligned_erms --45395-- new: 0x04d41710 (__memcpy_avx_unalign) R-> (2018.1) 0x04849d10 memmove --45395-- REDIR: 0x4c6e3e0 (libc.so.6:strncpy) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6f220 (libc.so.6:strcasecmp) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6de90 (libc.so.6:strcat) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6e440 (libc.so.6:rindex) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c705d0 (libc.so.6:rawmemchr) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c88680 (libc.so.6:wmemchr) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c881c0 (libc.so.6:wcscmp) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6f040 (libc.so.6:mempcpy) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6ee70 (libc.so.6:bcmp) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6e380 (libc.so.6:strncmp) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6df40 (libc.so.6:strcmp) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6efb0 (libc.so.6:memset) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c88180 (libc.so.6:wcschr) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6e2e0 (libc.so.6:strnlen) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6e020 (libc.so.6:strcspn) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6f270 (libc.so.6:strncasecmp) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6dfc0 (libc.so.6:strcpy) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6f3c0 (libc.so.6:memcpy@@GLIBC_2.14) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c898d0 (libc.so.6:wcsnlen) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c88200 (libc.so.6:wcscpy) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6e480 (libc.so.6:strpbrk) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6def0 (libc.so.6:index) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6e2a0 (libc.so.6:strlen) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c74a80 (libc.so.6:memrchr) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6f2c0 (libc.so.6:strcasecmp_l) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6ee30 (libc.so.6:memchr) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c882d0 (libc.so.6:wcslen) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6e5a0 (libc.so.6:strspn) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6f1c0 (libc.so.6:stpncpy) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6f160 (libc.so.6:stpcpy) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c70610 (libc.so.6:strchrnul) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4c6f310 (libc.so.6:strncasecmp_l) redirected to 0x48351b6 (_vgnU_ifunc_wrapper) --45395-- REDIR: 0x4d3e530 (libc.so.6:__strrchr_avx2) redirected to 0x4845e00 (rindex) --45395-- REDIR: 0x4c6a100 (libc.so.6:malloc) redirected to 0x4840739 (malloc) --45395-- REDIR: 0x490da50 (libstdc++.so.6:operator new(unsigned long)) redirected to 0x4840ea3 (operator new(unsigned long)) --45395-- REDIR: 0x490dab0 (libstdc++.so.6:operator new[](unsigned long)) redirected to 0x4842095 (operator new[](unsigned long)) --45395-- REDIR: 0x4d3e340 (libc.so.6:__strchrnul_avx2) redirected to 0x484a790 (strchrnul) --45395-- REDIR: 0x4d416f0 (libc.so.6:__mempcpy_avx_unaligned_erms) redirected to 0x484a8a0 (mempcpy) 1>Fin --45395-- REDIR: 0x4d39bf0 (libc.so.6:__strcmp_avx2) redirected to 0x4847120 (strcmp) --45395-- REDIR: 0x4d3e700 (libc.so.6:__strlen_avx2) redirected to 0x48462a0 (strlen) Fin. --45395-- REDIR: 0x4d3a560 (libc.so.6:__memchr_avx2) redirected to 0x48472a0 (memchr) --45395-- REDIR: 0x4d41710 (libc.so.6:__memcpy_avx_unaligned_erms) redirected to 0x4849d10 (memmove) --45395-- REDIR: 0x490bd00 (libstdc++.so.6:operator delete(void*, unsigned long)) redirected to 0x48436d3 (operator delete(void*, unsigned long)) --45395-- REDIR: 0x490bd20 (libstdc++.so.6:operator delete[](void*)) redirected to 0x48443f9 (operator delete[](void*)) --45395-- REDIR: 0x4c6a760 (libc.so.6:free) redirected to 0x4842f0e (free) ==45395== ==45395== HEAP SUMMARY: ==45395== in use at exit: 0 bytes in 0 blocks ==45395== total heap usage: 23 allocs, 23 frees, 75,192 bytes allocated ==45395== ==45395== All heap blocks were freed -- no leaks are possible ==45395== ==45395== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
On Sun, Sep 5, 2021 at 8:29 PM Alvaro Kuolas <kuo...@gmail.com> wrote: > Hello everyone! > > I am running valgrind on my PC with dual boot Windows 10 and Fedora 34. > > Running the same test on Ubuntu 20.04 (under Windows 10 WSL2) valgrind > runs in less than a second, but on Fedora 34 is very slow, several minutes > slow. > > On Fedora 34 it looks like the time spent is reading symbols. > > This is the part that takes most of the time: > > --23524-- Reading syms from /usr/lib64/libstdc++.so.6.0.29 > --23524-- Considering > /usr/lib/debug/.build-id/bd/d633ff5da0bba64d19ecf277a9eed7001da127.debug .. > --23524-- .. build-id is valid > --23524-- Considering > /usr/lib/debug/.build-id/bd/../../../../../usr/lib/debug/usr/lib64/../../.dwz/gcc-11.2.1-1.fc34.x86_64 > .. > --23524-- .. build-id is valid > --23524-- Reading syms from /usr/lib64/libm-2.33.so > --23524-- Considering > /usr/lib/debug/.build-id/c1/784bbe8a93a6e62f74b16105a2076a03b398ac.debug .. > --23524-- .. build-id is valid > --23524-- Reading syms from /usr/lib64/libgcc_s-11-20210728.so.1 > --23524-- Considering > /usr/lib/debug/.build-id/46/e10c9ee769c5cfc7cdb638e3ccbc3169c0a949.debug .. > --23524-- .. build-id is valid > --23524-- Considering > /usr/lib/debug/.build-id/46/../../../../../usr/lib/debug/lib64/../.dwz/gcc-11.2.1-1.fc34.x86_64 > .. > --23524-- .. build-id is valid > --23524-- Reading syms from /usr/lib64/libc-2.33.so > --23524-- Considering > /usr/lib/debug/.build-id/9d/e0f6e78ec16db4c6c167efc6b37466705edeff.debug .. > --23524-- .. build-id is valid > --23524-- Considering > /usr/lib/debug/.build-id/9d/../../../../../usr/lib/debug/lib64/../.dwz/glibc-2.33-20.fc34.x86_64 > .. > --23524-- .. build-id is valid > > What could be the problem? GGC 11 perhaps? > > Thanks! >
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