diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 72b835f843..02521361c8 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -9,7 +9,7 @@ env:
   RUST_BACKTRACE: 1
   TOOLCHAIN: nightly
   RUSTFLAGS: -C link-arg=-fuse-ld=lld -C link-arg=-Wl,--no-rosegment, -C force-frame-pointers=yes
-  PERF_CMD: record -o perf.data -F997 --call-graph fp -g
+  PERF_OPT: record -F997 --call-graph fp -g
 
 jobs:
   bench:
@@ -67,7 +67,8 @@ jobs:
           mv target/criterion target/criterion-bench
           mv target/criterion-transfer-profile target/criterion || true
           taskset -c 0 nice -n -20 \
-            cargo "+$TOOLCHAIN" flamegraph -v -c "$PERF_CMD" --features bench --bench transfer -- \
+            cargo "+$TOOLCHAIN" flamegraph -o transfer.svg -v -c "$PERF_OPT -o transfer.perf" \
+              --features bench --bench transfer -- \
               --bench --exact "Run multiple transfers with varying seeds" --noplot
           # And now restore the directories.
           mv target/criterion target/criterion-transfer-profile
@@ -75,22 +76,21 @@ jobs:
 
       - name: Profile client/server transfer
         run: |
-          { mkdir server; \
-            cd server; \
+          for CC in newreno cubic; do
+            TMP=$(mktemp -d)
             taskset -c 0 nice -n -20 \
-            cargo "+$TOOLCHAIN" flamegraph -v -c "$PERF_CMD" \
-              --bin neqo-server -- --db ../test-fixture/db "$HOST:4433" || true; } &
-          mkdir client; \
-            cd client; \
+            cargo "+$TOOLCHAIN" flamegraph -o "server-$CC.svg" -v -c "$PERF_OPT -o server-$CC.perf" \
+              --bin neqo-server -- --cc "$CC" "$HOST:4433" &
             time taskset -c 1 nice -n -20 \
-            cargo "+$TOOLCHAIN" flamegraph -v -c "$PERF_CMD" \
-              --bin neqo-client -- --output-dir . "https://$HOST:4433/$SIZE"
-          killall -INT neqo-server
-          cd ${{ github.workspace }}
-          [ "$(wc -c < client/"$SIZE")" -eq "$SIZE" ] || exit 1
+            cargo "+$TOOLCHAIN" flamegraph -o "client-$CC.svg" -v -c "$PERF_OPT -o client-$CC.perf" \
+              --bin neqo-client -- --output-dir "$TMP" --cc "$CC" "https://$HOST:4433/$SIZE"
+            pkill -U bench -o -x -INT neqo-server
+            [ "$(wc -c < "$TMP/$SIZE")" -eq "$SIZE" ] || exit 1
+            rm -rf "$TMP"
+          done
         env:
           HOST: localhost
-          SIZE: 1073741824 # 1 GB
+          SIZE: 536870912 # 512 MB
 
       # Re-enable turboboost, hyperthreading and use powersave governor.
       - name: Restore machine
@@ -99,20 +99,23 @@ jobs:
 
       - name: Convert for profiler.firefox.com
         run: |
-          perf script -i perf.data -F +pid > transfer.perf &
-          perf script -i client/perf.data -F +pid > client.perf &
-          perf script -i server/perf.data -F +pid > server.perf &
+          perf script -i transfer.perf -F +pid > transfer.fx.perf &
+          for CC in newreno cubic; do
+            for PEER in client server; do
+              perf script -i "$PEER-$CC.perf" -F +pid > "$PEER-$CC.fx.perf" &
+            done
+          done
           wait
-          mv flamegraph.svg transfer.svg
-          mv client/flamegraph.svg client.svg
-          mv server/flamegraph.svg server.svg
           rm neqo.svg
 
       - name: Generate perf reports
         run: |
-          perf report -i perf.data --no-children --stdio > transfer.perf.txt &
-          perf report -i client/perf.data --no-children --stdio > client.perf.txt &
-          perf report -i server/perf.data --no-children --stdio > server.perf.txt &
+          perf report -i transfer.perf --no-children --stdio > transfer.perf.txt &
+          for CC in newreno cubic; do
+            for PEER in client server; do
+              perf report -i "$PEER-$CC.perf" --no-children --stdio > "$PEER-$CC.txt" &
+             done
+          done
           wait
 
       - name: Format results as Markdown