Messages in this thread | | | Date | Mon, 14 Oct 2019 12:46:19 -0700 | From | Andi Kleen <> | Subject | Re: [PATCH 3/3] perf tools: Make 'struct map_shared' truly shared |
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> > We may need a COW operation for this (hopefully rare) case. > > so the jitted mmaps are inserted into the data file > and processed during report where they can overload > existing maps - thats detected before addition in: > > thread__insert_map > map_groups__fixup_overlappings > - which uses COW way -> map__clone(map, false); > to create new map > > other fixups to maps are being done only for kernel maps, > where we dont have a problem, because there's only one copy
I assume the same is true for /tmp/perf-* processing?
Thanks for looking into it.
-Andi
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