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fix(build): production flamegraphs are useless (#6764)

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This commit is contained in:
Christian Schwarz
2024-02-16 11:12:34 +01:00
committed by GitHub
parent 45e929c069
commit 568bc1fde3
2 changed files with 11 additions and 1 deletions
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2
Dockerfile
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@@ -47,7 +47,7 @@ COPY --chown=nonroot . .
# Show build caching stats to check if it was used in the end.
# Has to be the part of the same RUN since cachepot daemon is killed in the end of this RUN, losing the compilation stats.
RUN set -e \
&& mold -run cargo build \
&& RUSTFLAGS="-Clinker=clang -Clink-arg=-fuse-ld=mold -Clink-arg=-Wl,--no-rosegment" cargo build \
--bin pg_sni_router \
--bin pageserver \
--bin pagectl \

10
README.md
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@@ -249,6 +249,16 @@ testing locally, it is convenient to run just one set of permutations, like this
DEFAULT_PG_VERSION=15 BUILD_TYPE=release ./scripts/pytest
```
## Flamegraphs
You may find yourself in need of flamegraphs for software in this repository.
You can use [`flamegraph-rs`](https://github.com/flamegraph-rs/flamegraph) or the original [`flamegraph.pl`](https://github.com/brendangregg/FlameGraph). Your choice!
>[!IMPORTANT]
> If you're using `lld` or `mold`, you need the `--no-rosegment` linker argument.
> It's a [general thing with Rust / lld / mold](https://crbug.com/919499#c16), not specific to this repository.
> See [this PR for further instructions](https://github.com/neondatabase/neon/pull/6764).
## Documentation
[docs](/docs) Contains a top-level overview of all available markdown documentation.