Empty instrumentation data every other runs

Question

Empty instrumentation data every other runs

nbigaouette opened this issue 4 years ago · comments

Nicolas Bigaouette commented 4 years ago

I'm trying to debug a memory leak (see inejge/ldap3#47) but I always need to run cargo instruments twice to get data in Instruments.

cargo instruments --limit 25000 --template Leaks --open

I think the problem happens when cargo rebuilds the binary before profiling it. This behaviour is consistent. I touch src/main.rs and run cargo instruments. The package gets rebuilt, but when Instruments launches, there is no profiling information. If I re-run cargo instruments I do get the profiling information.

~~I will attach a screencast of the behaviour soon.~~
Screencast: https://vimeo.com/422466785

Colin Rofls · Answer 1 · Wed May 27 2020 03:32:57 GMT+0800 (China Standard Time)

hmm, unless I'm misunderstanding something I'm not able to reproduce on 10.14.6:

Nicolas Bigaouette · Answer 2 · Thu May 28 2020 22:55:57 GMT+0800 (China Standard Time)

eurg... :(

I am using Catalina 10.15.4 (19E287) and Instruments 11.5 (11E608c).

I have fixed my memory leak so will not use Instruments for some time. I'll close this and reopen if I can get more details...