Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/scripts/contrib/bb-perf/bb-matrix.sh b/scripts/contrib/bb-perf/bb-matrix.sh
new file mode 100755
index 0000000..1064565
--- /dev/null
+++ b/scripts/contrib/bb-perf/bb-matrix.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+#
+# Copyright (c) 2011, Intel Corporation.
+# All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# DESCRIPTION
+# This script runs BB_CMD (typically building core-image-sato) for all
+# combincations of BB_RANGE and PM_RANGE values. It saves off all the console
+# logs, the buildstats directories, and creates a bb-pm-runtime.dat file which
+# can be used to postprocess the results with a plotting tool, spreadsheet, etc.
+# Before running this script, it is recommended that you pre-download all the
+# necessary sources by performing the BB_CMD once manually. It is also a good
+# idea to disable cron to avoid runtime variations caused by things like the
+# locate process. Be sure to sanitize the dat file prior to post-processing as
+# it may contain error messages or bad runs that should be removed.
+#
+# AUTHORS
+# Darren Hart <dvhart@linux.intel.com>
+#
+
+# The following ranges are appropriate for a 4 core system with 8 logical units
+# Use leading 0s to ensure all digits are the same string length, this results
+# in nice log file names and columnar dat files.
+BB_RANGE="04 05 06 07 08 09 10 11 12 13 14 15 16"
+PM_RANGE="04 05 06 07 08 09 10 11 12 13 14 15 16"
+
+DATADIR="bb-matrix-$$"
+BB_CMD="bitbake core-image-minimal"
+RUNTIME_LOG="$DATADIR/bb-matrix.dat"
+
+# See TIME(1) for a description of the time format parameters
+# The following all report 0: W K r s t w
+TIME_STR="%e %S %U %P %c %w %R %F %M %x"
+
+# Prepare the DATADIR
+mkdir $DATADIR
+if [ $? -ne 0 ]; then
+ echo "Failed to create $DATADIR."
+ exit 1
+fi
+
+# Add a simple header
+echo "BB PM $TIME_STR" > $RUNTIME_LOG
+for BB in $BB_RANGE; do
+ for PM in $PM_RANGE; do
+ RUNDIR="$DATADIR/$BB-$PM-build"
+ mkdir $RUNDIR
+ BB_LOG=$RUNDIR/$BB-$PM-bitbake.log
+ date
+ echo "BB=$BB PM=$PM Logging to $BB_LOG"
+
+ echo -n " Preparing the work directory... "
+ rm -rf pseudodone tmp sstate-cache tmp-eglibc &> /dev/null
+ echo "done"
+
+ # Export the variables under test and run the bitbake command
+ # Strip any leading zeroes before passing to bitbake
+ export BB_NUMBER_THREADS=$(echo $BB | sed 's/^0*//')
+ export PARALLEL_MAKE="-j $(echo $PM | sed 's/^0*//')"
+ /usr/bin/time -f "$BB $PM $TIME_STR" -a -o $RUNTIME_LOG $BB_CMD &> $BB_LOG
+
+ echo " $(tail -n1 $RUNTIME_LOG)"
+ cp -a tmp/buildstats $RUNDIR/$BB-$PM-buildstats
+ done
+done