mirrors/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-01-19 05:45:05 +01:00
Code Issues Projects Releases Wiki Activity

Document faster throughput configuration

Browse Source
This commit is contained in:
Alex Groce 2021-07-28 13:03:08 -07:00 committed by GitHub
parent 4b1fb50def
commit 8a4f0fcd3f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
doc/fuzzing.md
View File

@ -83,6 +83,10 @@ INFO: seed corpus: files: 991 min: 1b max: 1858b total: 288291b rss: 150Mb
…
```
## Run without sanitizers for increased throughput
Fuzzing on a harness compiled with `--with-sanitizers=address,fuzzer,undefined` is good for finding bugs. However, the very slow execution even under libFuzzer will limit the ability to find new coverage. A good approach is to perform occasional long runs without the additional bug-detectors (configure `--with-sanitizers=fuzzer`) and then merge new inputs into a corpus as described in the qa-assets repo (https://github.com/bitcoin-core/qa-assets/blob/main/.github/PULL_REQUEST_TEMPLATE.md). Patience is useful; even with improved throughput, libFuzzer may need days and 10s of millions of executions to reach deep/hard targets.
## Reproduce a fuzzer crash reported by the CI
- `cd` into the `qa-assets` directory and update it with `git pull qa-assets`