[PATCH 0/2] Improvements for kallsyms__parse

Ian Rogers
2020-04-30T19:36:03Z

kallsyms__parse is called 4 times during perf record startup. Add a
benchmark to measure its performance. Transition it to using the api
io.h buffered reading, improving performance by ~8% or saving ~5% from
perf record start up time.

Ian Rogers (2):
perf bench: add kallsyms parsing
lib kallsyms: parse using io api

tools/lib/api/io.h | 3 ++
tools/lib/symbol/kallsyms.c | 81 +++++++++++++++++++------------------
tools/perf/bench/Build | 1 +
tools/perf/bench/bench.h | 1 +
tools/perf/builtin-bench.c | 1 +
5 files changed, 47 insertions(+), 40 deletions(-)

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2.26.2.526.g744177e7f7-goog