Comment 8 for bug 1894407

I've prepared a patch that uses a single long-running instance of addr2line for each dso, instead of one per address request. It dramatically speeds up e.g. `perf script` operation (I don't know if it solves OP's problem but it could be relevant!).

Discussion on linux-perf-users mailing list: https://<email address hidden>/

Background: https://eighty-twenty.org/2021/09/09/perf-addr2line-speed-improvement