https://clusterfuzz.com/v2/performance-report/libFuzzer_profiling_fuzzer/libfuzzer_chrome_asan/2018-10-30 profiling_fuzzer does a lot of logging, which is inefficient for fuzzing.
This was the logging [1030/015558.900067:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.900219:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.900378:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.900554:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.901014:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.901187:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.901363:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.901517:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.901693:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.901865:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.902028:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.902192:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.902342:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.902496:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.902672:ERROR:stream_parser.cc(238)] StreamParser parsing error [1030/015558.903017:ERROR:stream_parser.cc(238)] StreamParser parsing error
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/6caf56e59e44a1a6963bd0d2ce896e6faadc7a37 commit 6caf56e59e44a1a6963bd0d2ce896e6faadc7a37 Author: Abhishek Arya <inferno@chromium.org> Date: Tue Nov 06 00:18:34 2018 Disable excessive logging in profiling fuzzer. R=mmoroz@chromium.org TBR=erikchen@chromium.org Bug: 900812 Change-Id: I1e7cac38d9d705179aeff95d438a6932febe8cd4 Reviewed-on: https://chromium-review.googlesource.com/c/1317868 Reviewed-by: Abhishek Arya <inferno@chromium.org> Reviewed-by: Max Moroz <mmoroz@chromium.org> Commit-Queue: Abhishek Arya <inferno@chromium.org> Cr-Commit-Position: refs/heads/master@{#605522} [modify] https://crrev.com/6caf56e59e44a1a6963bd0d2ce896e6faadc7a37/components/services/heap_profiling/BUILD.gn [modify] https://crrev.com/6caf56e59e44a1a6963bd0d2ce896e6faadc7a37/components/services/heap_profiling/stream_fuzzer.cc
Comment 1 by infe...@chromium.org
, Nov 5Owner: infe...@chromium.org
Status: Started (was: Untriaged)