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://lore.kernel.org/linux-perf-
users/20210910102307.2055484-1-to...@leastfixedpoint.com/

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

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https://bugs.launchpad.net/bugs/1894407

Title:
  linux-tools: can perf be linked against libbfd, maybe statically?

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