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From: "tromey at sourceware dot org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug gdb/25703] set dwarf max-cache-age default of 5 is slow for
 inter-CU-reference binaries
Date: Tue, 01 Sep 2020 14:46:04 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D25703

--- Comment #4 from Tom Tromey <tromey at sourceware dot org> ---
I had some other thoughts about this recently:

1. It seems to me that if a CU ever refers to a DIE in
   some PU, then gdb could process the abbrev table for
   that PU and keep it for the duration of psymtab reading.
   The idea here is that if there's one reference to a PU, there
   are probably more.  Also, dwz tries to share abbrev
   tables, so caching like this could be a win that way as well.

2. In combination with 1, instead of reading all the partial
   DIEs for a PU when seeing a cross-unit reference, we
   could instead just read the exact DIE that is referred to.
   This might or might not be faster, depending on what all
   is referenced.

--=20
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