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laforge has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/docker-playground/+/41778?usp=email )

Change subject: ttcn3-bts-test: bpftrace: filter by executable name ......................................................................

Patch Set 2:

(1 comment)

File ttcn3-bts-test/bpftrace/ksys_write_delay.bt:

https://gerrit.osmocom.org/c/docker-playground/+/41778/comment/09ad4edc_c90b... : PS2, Line 28: kretprobe:ksys_write / comm == str($1) && @start[tid] /

I also thought so, but now I am not sure anymore. […]

AFAIK, TIDs are considered globally unique like PID values. They of course also wrap eventually, just like PIDs. So if you have one long-running thread, and lots of threads respawning all the time, eventually it will probably wrap.