Add a performance testing script

To test the DTO performance in different platform. Add a DTS test case
generator and a script to test different cases. Also modify the test
script that's able to upload executable and test cases to devices with
adb, and run the performance test cases on devices.

Bug: 33825009
Test: tests/run_performance_test.sh
Change-Id: I660b613237a86cb17f571ffc488c29e0e8b95ed6

1 files changed, 117 insertions, 0 deletions

diff --git a/tests/run_performance_test.sh b/tests/run_performance_test.sh
new file mode 100755
index 0000000..3cfc1ed
--- /dev/null
+++ b/tests/run_performance_test.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+
+# Include some functions from common.sh.
+SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
+source ${SCRIPT_DIR}/common.sh
+
+OUT_DATA_DIR="test_out"
+
+# Disable REMOTE for test on local
+REMOTE="--remote"
+
+TEST_COUNT=10
+DEBUG=false
+
+
+apply_overlay() {
+  local overaly="$1"
+  local base_dts="$2"
+  local overlay_dts="$3"
+  local merged_dts="$4"
+
+  local summary=0
+  for i in $(seq 1 $TEST_COUNT); do
+    TIME=$(./apply_overlay.sh "--$overaly" $REMOTE \
+      "$base_dts" "$overlay_dts" "$merged_dts" \
+        | sed -E "s/.*took ([0-9]+\\.[0-9]+) secs/\\1/")
+    if $DEBUG; then
+      echo "time=$TIME"
+    fi
+    summary=$(echo "$summary + $TIME" | bc -l)
+  done
+  AVERAY=$(echo "scale=9; $summary/$TEST_COUNT" | bc -l)
+  printf "%10s Average time=%s\n" "($overaly)" "$AVERAY"
+}
+
+run_performance_test() {
+  # see ufdt_gen_test_dts.c for detail
+  local node_depth="$1"
+  local node_unused="$2"
+  local node_count="$3"
+  local append_count="$4"
+  local override_count="$5"
+
+  mkdir -p "$OUT_DATA_DIR" >& /dev/null
+
+  #
+  # Prepare dtb and dtbo files
+  #
+  local base_dts="${OUT_DATA_DIR}/base.dts"
+  echo "  Base DT: depth=$node_depth unused=$node_unused nodes=$node_count"
+  ufdt_gen_test_dts -n $node_count -d $node_depth -u $node_unused \
+    -o "$base_dts"
+  if $DEBUG; then
+    cat "$base_dts"
+  fi
+
+  local overlay_dts="${OUT_DATA_DIR}/overlay.dts"
+  echo "  Overlay DT: append=$append_count override=$override_count"
+  ufdt_gen_test_dts -p -a $append_count -w $override_count \
+    -o "$overlay_dts"
+  if $DEBUG; then
+    cat "$overlay_dts"
+  fi
+
+  local merged_dts="${OUT_DATA_DIR}/overlay_merged.dts"
+  apply_overlay fdt $base_dts $overlay_dts $merged_dts
+  apply_overlay ufdt $base_dts $overlay_dts $merged_dts
+
+  rm -rf "$OUT_DATA_DIR"
+}
+
+main() {
+  alert "========== Running Performance Tests =========="
+
+  if [ -z "$ANDROID_BUILD_TOP" ]; then
+    die "Run envsetup.sh / lunch yet?"
+  fi
+
+  if ! command_exists ufdt_gen_test_dts ||
+     ! command_exists dtc; then
+    die "Run mmma $(dirname $SCRIPT_DIR) yet?"
+  fi
+
+  if [ "$REMOTE" == "--remote" ]; then
+    adb get-state > /dev/null
+    if [ "$?" -ne "0" ]; then
+      die "adb can not connect to device."
+    fi
+  fi
+
+  # cd to ${SCRIPT_DIR} in a subshell because gen_test.sh uses relative
+  # paths for dependent files.
+  cd "${SCRIPT_DIR}"
+
+  #
+  # run_performance_test
+  #   <node_depth> <node_unused> <node_count> <append_count> <override_count>
+
+  # Test case #1: node=x append=100 override=100
+  for t in $(seq 200 50 1000); do
+    run_performance_test 2 0 $t 100 100
+  done
+  # Test case #2: node=x append=100 override=100
+  for t in $(seq 200 50 1000); do
+    run_performance_test 2 $t $t 100 100
+  done
+  # Test case #3: node=2000 append=X
+  for t in $(seq 50 50 1000); do
+    run_performance_test 2 0 2000 $t 0
+  done
+  # Test case #4: node=2000 override=X
+  for t in $(seq 50 50 1000); do
+    run_performance_test 2 0 2000 0 $t
+  done
+}
+
+main "$@"