Add build-perf-bisect.sh

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>

diff --git a/build-perf-bisect.sh b/build-perf-bisect.sh
new file mode 100755 (executable)
index 0000000..c98ebe7
--- /dev/null
+++ b/build-perf-bisect.sh
@@ -0,0 +1,161 @@
+#!/bin/bash
+#
+# Copyright (c) 2016, Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+#
+# This script is a simple wrapper around the actual build performance tester
+# script. This script initializes the build environment, runs
+# oe-build-perf-test and archives the results.
+
+#
+# PARSE COMMAND LINE ARGUMENTS
+#
+script=`basename $0`
+workdir=`realpath build-perf-bisect`
+
+usage () {
+cat << EOF
+Usage: $script [-h] [-d DL_DIR] [-w WORKDIR] BUILD_TARGET THRESHOLD
+
+Optional arguments:
+  -h                show this help and exit.
+  -d                DL_DIR to use
+  -w                work directory to use
+EOF
+}
+
+while getopts "hd:w:" opt; do
+    case $opt in
+        h)  usage
+            exit 0
+            ;;
+        d)  downloaddir=`realpath "$OPTARG"`
+            ;;
+        w)  workdir=`realpath "$OPTARG"`
+            ;;
+        *)  usage
+            exit 255
+            ;;
+    esac
+done
+shift "$((OPTIND - 1))"
+
+if [ $# -ne 2 ]; then
+    echo "Invalid number of positional arguments ($# instead of 2)"
+    usage
+    exit 255
+fi
+
+# Initialize rest of variables
+[ -z "$downloaddir" ] && downloaddir="$workdir/downloads"
+timestamp=`date "+%Y%m%d_%H%M%S"`
+git_rev=`git rev-parse --short HEAD`
+git_rev_cnt=`git rev-list --count HEAD`
+log_file="$workdir/bisect-${git_rev_cnt}_g${git_rev}-${timestamp}.log"
+
+
+#
+# HELPER FUNCTIONS
+#
+log () {
+    echo "[`date '+%Y-%m-%d %H:%M:%S'`] $@" | tee -a "$log_file" >&2
+}
+
+hms_to_s () {
+    _f1=`echo $1: | cut -d ':' -f 1`
+    _f2=`echo $1: | cut -d ':' -f 2`
+    _f3=`echo $1: | cut -d ':' -f 3`
+
+    if echo "$_f1$_f2$_f3" | grep -q -e '[^0-9.]'; then
+        log "invalid time stamp format: '$1'"
+        exit 255
+    fi
+
+    #>&2 echo "'$_f1' '$_f2' '$_f3'"
+    if [ -z "$_f2" ]; then
+        _s=`echo $_f1 | cut -d '.' -f 1`
+    elif [ -z "$_f3" ]; then
+        _ss=`echo $_f2 | cut -d '.' -f 1`
+        _s=$((_f1*60 + $_ss))
+    else
+        _ss=`echo $_f3 | cut -d '.' -f 1`
+        _s=$(($_f1*3600 + $_f2*60 + $_ss))
+    fi
+
+    echo $_s
+}
+
+s_to_hms () {
+    if echo "$1" | grep -q -e '[^0-9]'; then
+        log "not an integer: '$1'"
+        exit 255
+    fi
+
+    printf "%d:%02d:%02d" $(($1 / 3600)) $((($1 % 3600) / 60)) $(($1 % 60))
+}
+
+time_cmd () {
+    log "timing $*"
+    /usr/bin/time -o time.log -f '%e' $@ &>> "$log_file"
+    secs=`cut -f1 -d. time.log`
+    log "command took $secs seconds (`s_to_hms $secs`)"
+    echo $secs
+}
+
+run_cmd () {
+    log "running $*"
+    $@ &>> "$log_file"
+}
+
+
+#
+# MAIN SCRIPT
+#
+build_target=$1
+threshold=`hms_to_s $2`
+
+#Initialize build environment
+mkdir -p $workdir
+. ./oe-init-build-env "$workdir/build-$git_rev-$timestamp" > /dev/null || exit 255
+builddir=`pwd`
+
+echo DL_DIR = \"$downloaddir\" >> conf/local.conf
+echo CONNECTIVITY_CHECK_URIS = \"\" >> conf/local.conf
+
+# Do actual build
+log "TESTING REVISION $git_rev (#$git_rev_cnt)"
+log "fetching sources"
+run_cmd bitbake $build_target -c fetchall
+
+log "cleaning up build directory"
+run_cmd rm -rf bitbake.lock conf/sanity_info cache tmp sstate-cache
+
+log "syncing and dropping caches"
+run_cmd sync
+echo 3 | sudo -n -k /usr/bin/tee /proc/sys/vm/drop_caches > /dev/null || exit 255
+sleep 2
+
+result=`time_cmd bitbake $build_target` || exit 125
+
+log "removing build directory"
+cd $workdir
+run_cmd rm -rf $builddir
+
+result_hms=`s_to_hms $result`
+threshold_hms=`s_to_hms $threshold`
+if [ $result -lt $threshold ]; then
+    log "OK ($git_rev): $result ($result_hms) < $threshold ($threshold_hms)"
+    exit 0
+else
+    log "FAIL ($git_rev): $result ($result_hms) >= $threshold ($threshold_hms)"
+    exit 1
+fi