- Revert a patch that unconditionally resolved addresses to inlines in
callchains, something that was done before when DWARF mode was asked
for, but could as well be done when just frame pointers (the default)
was selected. This enriches the callchains with inlines but the way to
resolve it is gross right now, relying on addr2line, and even if we come
up with an efficient way of processing all the associated DWARF info for
a big file as vmlinux is, this has to be something people opt-in, as it
will still result in overheads, so revert it until we get this done in a
saner way.
- Update the x86 msr-index.h header with the kernel original, no change
in tooling output, just addresses a tools/perf build warning.
- Resolve a regression where special "tool events", such as
"duration_time" were being presented for all CPUs, when it only makes
sense to show it for the workload, that is, just once.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.5-3-2023-08-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Revert a patch that unconditionally resolved addresses to inlines in
callchains, something that was done before when DWARF mode was asked
for, but could as well be done when just frame pointers (the default)
was selected.
This enriches the callchains with inlines but the way to resolve it
is gross right now, relying on addr2line, and even if we come up with
an efficient way of processing all the associated DWARF info for a
big file as vmlinux is, this has to be something people opt-in, as it
will still result in overheads, so revert it until we get this done
in a saner way.
- Update the x86 msr-index.h header with the kernel original, no change
in tooling output, just addresses a tools/perf build warning.
- Resolve a regression where special "tool events", such as
"duration_time" were being presented for all CPUs, when it only
makes sense to show it for the workload, that is, just once.
* tag 'perf-tools-fixes-for-v6.5-3-2023-08-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf stat: Don't display zero tool counts
tools arch x86: Sync the msr-index.h copy with the kernel sources
Revert "perf report: Append inlines to non-DWARF callchains"
b4f63b0f2d