diff --git a/src/bench/stream.sh b/src/bench/stream.sh
index 1099b54a2..41d62f234 100755
--- a/src/bench/stream.sh
+++ b/src/bench/stream.sh
@@ -7,20 +7,24 @@
 # Options:
 # - "ascii", uniform random ASCII bytes
 # - "utf8", uniform random unicode characters, encoded as utf8
-DATA="ascii"
+# - "rand", pure random data, will contain many invalid code sequences.
+DATA="utf8"
 SIZE="25000000"
 
 # Uncomment to test with an active terminal state.
-#ARGS=" --terminal"
+# ARGS=" --terminal"
 
 # Generate the benchmark input ahead of time so it's not included in the time.
 ./zig-out/bin/bench-stream --mode=gen-$DATA | head -c $SIZE > /tmp/ghostty_bench_data
 
+# Uncomment to instead use the contents of `stream.txt` as input.
+# yes $(cat ./stream.txt) | head -c $SIZE > /tmp/ghostty_bench_data
+
 hyperfine \
   --warmup 10 \
   -n memcpy \
-  "cat /tmp/ghostty_bench_data | ./zig-out/bin/bench-stream --mode=noop${ARGS}" \
+  "./zig-out/bin/bench-stream --mode=noop${ARGS} </tmp/ghostty_bench_data" \
   -n scalar \
-  "cat /tmp/ghostty_bench_data | ./zig-out/bin/bench-stream --mode=scalar${ARGS}" \
+  "./zig-out/bin/bench-stream --mode=scalar${ARGS} </tmp/ghostty_bench_data" \
   -n simd \
-  "cat /tmp/ghostty_bench_data | ./zig-out/bin/bench-stream --mode=simd${ARGS}"
+  "./zig-out/bin/bench-stream --mode=simd${ARGS} </tmp/ghostty_bench_data"