commit a6edbf021164da8e1cd4a9023508ea88c4f90cc7
author Shuotao Gao <stgao@chromium.org> Sat Dec 15 18:05:37 2018
committer Commit Bot <commit-bot@chromium.org> Sat Dec 15 18:05:37 2018
tree 9c9607fcb64f586d5f1a5bc9f855038e0c37642f
parent 83210270d62def978519e834576bd10dd227da6d

[code coverage] Enable parallel fuzzing and increase memory cap.

In https://luci-milo.appspot.com/p/chromium/builders/luci.chromium.ci/linux-code-coverage/1491,
sqlite3_ossfuzz_fuzzer runs out-of-memory (used: 4113Mb; limit: 4096Mb), and kept retrying, so
bump memory cap to 8192Mb because the Linux coverage bot has 204 GB memory.

TBR=inferno, mmoroz, liaoyuke

Change-Id: I65e7065fb5b10f4a6c0f145b57db533498239395
Reviewed-on: https://chromium-review.googlesource.com/c/1378661
Reviewed-by: Shuotao Gao <stgao@chromium.org>
Commit-Queue: Shuotao Gao <stgao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616986}

tools/code_coverage/run_fuzz_target.py

diff --git a/tools/code_coverage/run_fuzz_target.py b/tools/code_coverage/run_fuzz_target.py
index 2b092d3a..3580cd6 100755
--- a/tools/code_coverage/run_fuzz_target.py
+++ b/tools/code_coverage/run_fuzz_target.py
@@ -29,7 +29,7 @@
 # need to use merge pool specifier to have profraw files for every library used.
 _LLVM_PROFILE_FILENAME_FORMAT = '{fuzzer}.%1m.profraw'
 
-_LIBFUZZER_FLAGS = ['-merge=1', '-timeout=60', '-rss_limit_mb=4096']
+_LIBFUZZER_FLAGS = ['-merge=1', '-timeout=60', '-rss_limit_mb=8192']
 
 _SLEEP_DURATION_SECONDS = 8