From 4a6ec6f5971dc2bbd95cbd9607196c43873246e5 Mon Sep 17 00:00:00 2001
From: Lars Eggert <lars@eggert.org>
Date: Fri, 8 Mar 2024 01:07:16 +0200
Subject: [PATCH] ci: Use fp-based perf profiling to reduce `unknown` symbols
 (#1718)

---
 .github/workflows/bench.yml | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 79fc1dd9e5..57ad77d722 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -8,8 +8,8 @@ env:
   CARGO_TERM_COLOR: always
   RUST_BACKTRACE: 1
   TOOLCHAIN: nightly
-  RUSTFLAGS: -C link-arg=-fuse-ld=lld -C link-arg=-Wl,--no-rosegment
-  PERF_CMD: record -o perf.data -F997 --call-graph lbr -g
+  RUSTFLAGS: -C link-arg=-fuse-ld=lld -C link-arg=-Wl,--no-rosegment, -Cforce-frame-pointers=yes
+  PERF_CMD: record -o perf.data -F997 --call-graph fp -g
 
 jobs:
   bench:
@@ -81,8 +81,6 @@ jobs:
             taskset -c 0 nice -n -20 \
             cargo +$TOOLCHAIN flamegraph -v -c "$PERF_CMD" \
               --bin neqo-server -- --db ../test-fixture/db $HOST:4433 || true; } &
-          # Give the server time to start.
-          sleep 3
           mkdir client; \
             cd client; \
             time taskset -c 1 nice -n -20 \