Folkert de Vries (Dec 30 2022 at 14:03): Folkert de Vries (Dec 30 2022 at 14:03):just out of interest, for those on linux, what does
time valgrind echo -- "foo"
report for you? I get
Executed in 553.31 millis fish external
usr time 510.96 millis 641.00 micros 510.32 millis
sys time 28.21 millis 85.00 micros 28.13 millis
which means that valgrind takes 0.5 seconds even for trivial applications. I suspect it's something to do with my build of valgrind. Surely it can be faster than that?
Nikolaus Wettstein (Jan 03 2023 at 15:46):valgrind echo -- "foo" 0,46s user 0,02s system 99% cpu 0,486 total
Folkert de Vries (Jan 03 2023 at 15:51):thanks! roughly similar then. What is your valgrind version?
Brendan Hansknecht (Jan 03 2023 at 16:37):I have valgrind 3.19.0 and it takes 0.56s on my system
Brendan Hansknecht (Jan 03 2023 at 16:37):So basically the same
Folkert de Vries (Jan 03 2023 at 16:37):that is wild right? why would that take so long?
Brendan Hansknecht (Jan 03 2023 at 16:59):I mean, i think it emulates every instruction to make sure it can track allocations properly
Brendan Hansknecht (Jan 03 2023 at 16:59):That is why a lot of people prefer tools like address sanitizer.
Named-entity (Jan 03 2023 at 17:33):Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz
valgrind-3.19.0
valgrind echo -- "foo" 2.38s user 0.67s system 21% cpu 13.987 total
Last updated: Jul 26 2025 at 12:14 UTC