user_activity: Added tools for the benchmark profile collection.

The scripts run the Telemetry benchmarks, collects their perf profiles, use
local_cwp to do the profile symbolization and collect the hot
functions and callchains with pprof.

BUG=None
TEST=None

Change-Id: I2170e53d95924f1a3ba134bd62b1eead9e7a3077
Reviewed-on: https://chrome-internal-review.googlesource.com/288517
Reviewed-by: Luis Lozano <llozano@chromium.org>
Reviewed-by: Evelina Dumitrescu <evelinad@google.com>
Commit-Queue: Evelina Dumitrescu <evelinad@google.com>
Tested-by: Evelina Dumitrescu <evelinad@google.com>
Reviewed-on: https://chromium-review.googlesource.com/435923
Commit-Ready: Luis Lozano <llozano@chromium.org>
Tested-by: Luis Lozano <llozano@chromium.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/user_activity_benchmarks/collect_pprof_data.sh b/user_activity_benchmarks/collect_pprof_data.sh
new file mode 100755
index 00000000..5b89f185
--- /dev/null
+++ b/user_activity_benchmarks/collect_pprof_data.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# Copyright 2016 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+# Collects the pprof tree and top outputs.
+# All the local_cwp symbolized profiles are taken from the
+# local_cwp_results_path.
+# The pprof top output is stored in the pprof_top_results_path and the pprof
+# tree output is stored in the pprof_tree_results_path.
+
+set -e
+
+if [ "$#" -ne 3 ]; then
+  echo "USAGE: collect_pprof_data.sh local_cwp_results_path " \
+    "pprof_top_results_path pprof_tree_results_path"
+  exit 1
+fi
+
+readonly LOCAL_CWP_RESULTS_PATH=$1
+readonly PPROF_TOP_RESULTS_PATH=$2
+readonly PPROF_TREE_RESULTS_PATH=$3
+readonly SYMBOLIZED_PROFILES=`ls $LOCAL_CWP_RESULTS_PATH`
+
+for symbolized_profile in "${SYMBOLIZED_PROFILES[@]}"
+do
+  pprof --top "$LOCAL_CWP_RESULTS_PATH/${symbolized_profile}" > \
+    "$PPROF_TOP_RESULTS_PATH/${symbolized_profile}.pprof"
+  if [ $? -ne 0 ]; then
+    echo "Failed to extract the pprof top output for the $symbolized_profile."
+    continue
+  fi
+
+  pprof --tree "$LOCAL_CWP_RESULTS_PATH/${symbolized_profile}" > \
+    "$PPROF_TREE_RESULTS_PATH/${symbolized_profile}.pprof"
+  if [ $? -ne 0 ]; then
+    echo "Failed to extract the pprof tree output for the " \
+      "$symbolized_profile."
+    continue
+  fi
+done