This makes two main changes:
1) It disables profiling of things that aren't part of the invoked
process (-a). This isn't particularly useful in most cases because
it will show things like Chrome's VP9 decoding while you're
profiling something else.
2) It tells perf about the debug symbol format, which for some reason
isn't DWARF2 by default.
Change-Id: Ida6a54b74f1ec635fec930db7e2a2aa039dd1443
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1185
Reviewed-by: glittershark <grfn@gws.fyi>
Tested-by: BuildkiteCI
Add tools.perf-flamegraph, which collects the base case execution of
perf piped through stackcollapse-perf and flamegraph to flamegraph the
execution of an external command via perf.
Change-Id: I671fe254dc374b6cd7deca2d3bdea266164de025
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1176
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
