1#!/bin/bash 2# 3# Copyright (c) 2011, Intel Corporation. 4# 5# SPDX-License-Identifier: GPL-2.0-or-later 6# 7# DESCRIPTION 8# This script runs BB_CMD (typically building core-image-sato) for all 9# combincations of BB_RANGE and PM_RANGE values. It saves off all the console 10# logs, the buildstats directories, and creates a bb-pm-runtime.dat file which 11# can be used to postprocess the results with a plotting tool, spreadsheet, etc. 12# Before running this script, it is recommended that you pre-download all the 13# necessary sources by performing the BB_CMD once manually. It is also a good 14# idea to disable cron to avoid runtime variations caused by things like the 15# locate process. Be sure to sanitize the dat file prior to post-processing as 16# it may contain error messages or bad runs that should be removed. 17# 18# AUTHORS 19# Darren Hart <dvhart@linux.intel.com> 20# 21 22# The following ranges are appropriate for a 4 core system with 8 logical units 23# Use leading 0s to ensure all digits are the same string length, this results 24# in nice log file names and columnar dat files. 25BB_RANGE="04 05 06 07 08 09 10 11 12 13 14 15 16" 26PM_RANGE="04 05 06 07 08 09 10 11 12 13 14 15 16" 27 28DATADIR="bb-matrix-$$" 29BB_CMD="bitbake core-image-minimal" 30RUNTIME_LOG="$DATADIR/bb-matrix.dat" 31 32# See TIME(1) for a description of the time format parameters 33# The following all report 0: W K r s t w 34TIME_STR="%e %S %U %P %c %w %R %F %M %x" 35 36# Prepare the DATADIR 37mkdir $DATADIR 38if [ $? -ne 0 ]; then 39 echo "Failed to create $DATADIR." 40 exit 1 41fi 42 43# Add a simple header 44echo "BB PM $TIME_STR" > $RUNTIME_LOG 45for BB in $BB_RANGE; do 46 for PM in $PM_RANGE; do 47 RUNDIR="$DATADIR/$BB-$PM-build" 48 mkdir $RUNDIR 49 BB_LOG=$RUNDIR/$BB-$PM-bitbake.log 50 date 51 echo "BB=$BB PM=$PM Logging to $BB_LOG" 52 53 echo -n " Preparing the work directory... " 54 rm -rf pseudodone tmp sstate-cache tmp-eglibc &> /dev/null 55 echo "done" 56 57 # Export the variables under test and run the bitbake command 58 # Strip any leading zeroes before passing to bitbake 59 export BB_NUMBER_THREADS=$(echo $BB | sed 's/^0*//') 60 export PARALLEL_MAKE="-j $(echo $PM | sed 's/^0*//')" 61 /usr/bin/time -f "$BB $PM $TIME_STR" -a -o $RUNTIME_LOG $BB_CMD &> $BB_LOG 62 63 echo " $(tail -n1 $RUNTIME_LOG)" 64 cp -a tmp/buildstats $RUNDIR/$BB-$PM-buildstats 65 done 66done 67