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Gather more profile data for LLVM PGO

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Jakub Beránek 2022-03-07 15:54:17 +01:00
parent 297273c45b
commit ffa59765e0
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1 changed files with 28 additions and 10 deletions
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38
src/ci/pgo.sh
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@ -19,6 +19,34 @@ RUSTC_BOOTSTRAP=1 ./build/$PGO_HOST/stage2/bin/rustc \
RUSTC_BOOTSTRAP=1 ./build/$PGO_HOST/stage2/bin/rustc \
--edition=2021 --crate-type=lib -Copt-level=3 ../library/core/src/lib.rs
cp -r /tmp/rustc-perf ./
chown -R $(whoami): ./rustc-perf
cd rustc-perf
# Build the collector ahead of time, which is needed to make sure the rustc-fake
# binary used by the collector is present.
RUSTC=/checkout/obj/build/$PGO_HOST/stage0/bin/rustc \
RUSTC_BOOTSTRAP=1 \
/checkout/obj/build/$PGO_HOST/stage0/bin/cargo build -p collector
# Gather LLVM PGO profiles from real-world crates.
# Benchmark using profile_local with eprintln, which essentially just means
# don't actually benchmark -- just make sure we run rustc a bunch of times.
RUST_LOG=collector=debug \
RUSTC=/checkout/obj/build/$PGO_HOST/stage0/bin/rustc \
RUSTC_BOOTSTRAP=1 \
/checkout/obj/build/$PGO_HOST/stage0/bin/cargo run -p collector --bin collector -- \
profile_local \
eprintln \
/checkout/obj/build/$PGO_HOST/stage2/bin/rustc \
Test \
--builds Debug,Opt \
--cargo /checkout/obj/build/$PGO_HOST/stage0/bin/cargo \
--runs All \
--include syn,cargo,serde,ripgrep,regex,clap-rs,hyper-2
cd /checkout/obj
# Merge the profile data we gathered for LLVM
# Note that this uses the profdata from the clang we used to build LLVM,
# which likely has a different version than our in-tree clang.
@ -42,18 +70,8 @@ RUSTC_BOOTSTRAP=1 ./build/$PGO_HOST/stage2/bin/rustc \
RUSTC_BOOTSTRAP=1 ./build/$PGO_HOST/stage2/bin/rustc \
--edition=2021 --crate-type=lib -Copt-level=3 ../library/core/src/lib.rs
cp -r /tmp/rustc-perf ./
chown -R $(whoami): ./rustc-perf
cd rustc-perf
# Build the collector ahead of time, which is needed to make sure the rustc-fake
# binary used by the collector is present.
RUSTC=/checkout/obj/build/$PGO_HOST/stage0/bin/rustc \
RUSTC_BOOTSTRAP=1 \
/checkout/obj/build/$PGO_HOST/stage0/bin/cargo build -p collector
# benchmark using profile_local with eprintln, which essentially just means
# don't actually benchmark -- just make sure we run rustc a bunch of times.
RUST_LOG=collector=debug \
RUSTC=/checkout/obj/build/$PGO_HOST/stage0/bin/rustc \
RUSTC_BOOTSTRAP=1 \