[Valgrind-users] Very slow execution under Fedora 34

[Alvaro K. <ku...@gm...>]

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!