From 9ea3d54a4ffe0f21f6407e3023c565d2895ce541 Mon Sep 17 00:00:00 2001
From: Manuel Canales Esparcia <manuel@linuxfromscratch.org>
Date: Tue, 25 Apr 2006 20:29:58 +0000
Subject: [PATCH] Added a script to calculate SBUs and disk usage.

---
 common/create-sbu_du-report.sh | 121 +++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100755 common/create-sbu_du-report.sh

diff --git a/common/create-sbu_du-report.sh b/common/create-sbu_du-report.sh
new file mode 100755
index 0000000..4e4ba9e
--- /dev/null
+++ b/common/create-sbu_du-report.sh
@@ -0,0 +1,121 @@
+#!/bin/bash
+#$Id$
+
+set -e
+
+LOGSDIR=$1
+VERSION=$2
+TESTLEVEL=$3
+
+# Make sure that we have a directory as first argument
+[[ ! -d "$LOGSDIR" ]] && \
+  echo -e "\nUSAGE: create-sbu_du-report.sh logs_directory [book_version testsuites_level]\n" && exit
+
+# Make sure that the first argument is a jhalfs logs directory
+[[ ! -f "$LOGSDIR"/000-masterscript.log ]] && \
+  echo -e "\nLooks like $LOGSDIR isn't a jhalfs logs directory.\n" && exit
+
+# If this script is run manually, the book version and testsuite levels
+# may be unknow
+[[ -z "$VERSION" ]] && VERSION=unknown
+[[ -z "$TESTLEVEL" ]] && TESTLEVEL=unknown
+
+# If there is iteration logs directories, copy the logs inside iteration-1
+# to the top level dir
+[[ -d "$LOGSDIR"/iteration-1 ]] && \
+  cp $LOGSDIR/iteration-1/* $LOGSDIR
+
+# Set the report file
+REPORT="$VERSION"-SBU_DU-$(date --iso-8601).report
+
+# Dump generation time stamp, book version, and testsuites level
+echo -e "\n`date`\n" > "$REPORT"
+echo -e "Book version is:\t$VERSION\n" >> "$REPORT"
+echo -e "Test suites level:\t$TESTLEVEL\n" >> "$REPORT"
+
+# Dump CPU and memory info
+echo -e "\n\t\tCPU type:\n" >> "$REPORT"
+cat /proc/cpuinfo >> "$REPORT"
+echo -e "\n\t\tMemory info:\n" >> "$REPORT"
+free >> "$REPORT"
+
+# Parse only that logs that have time data
+BUILDLOGS=`grep -l "^real\>" $LOGSDIR/*`
+
+# Match the first timed log to extract the SBU unit value from it
+BASELOG=`grep -l "^real\>" $LOGSDIR/* | head -n1`
+echo -e "\n\nUsing $BASELOG to obtain the SBU unit value." >> "$REPORT"
+BASEMINUTES=`grep "^real\>" $BASELOG | cut -f2 | sed -e 's/m.*//'`
+BASESECONDS=`grep "^real\>" $BASELOG | cut -f2 | sed -e 's/.*m//;s/s//'`
+SBU_UNIT=`echo "scale=3; $BASEMINUTES * 60 + $BASESECONDS" | bc`
+echo -e "The SBU unit value is equal to $SBU_UNIT seconds.\n" >> "$REPORT"
+
+# Set the first value to 0 for grand totals calculation
+SBU2=0
+INSTALL2=0
+INSTALLMB2=0
+
+for log in $BUILDLOGS ; do
+
+#Start SBU calculation
+  # Build time
+  BUILDTIME=`grep "^real\>" $log | cut -f2`
+  # Build time in seconds
+  MINUTES=`grep "^real\>" $log | cut -f2 | sed -e 's/m.*//'`
+  SECS=`grep "^real\>" $log | cut -f2 | sed -e 's/.*m//;s/s//'`
+  TIME=`echo "scale=3; $MINUTES * 60 + $SECS" | bc`
+  # Calculate build time in SBU
+  SBU=`echo "scale=3; $TIME / $SBU_UNIT" | bc`
+  # Append SBU value to SBU2 for grand total
+  SBU2="$SBU2 + $SBU"
+
+#Start disk usage calculation
+  # Disk usage before unpack the package
+  DU1=`grep "^KB: " $log | head -n1 | cut -f1 | sed -e 's/KB: //'`
+  DU1MB=`echo "scale=2; $DU1 / 1024" | bc`
+  # Disk usage before delete sources and build dirs
+  DU2=`grep "^KB: " $log | tail -n1 | cut -f1 | sed -e 's/KB: //'`
+  DU2MB=`echo "scale=2; $DU2 / 1024" | bc`
+  # Calculate disk space required to do the build
+  REQUIRED1=`echo "$DU2 - $DU1" | bc`
+  REQUIRED2=`echo "scale=2; $DU2MB - $DU1MB" | bc`
+
+  # Append installed files disk usage to the previous entry,
+  # except for the first parsed log
+  if [ "$log" != "$BASELOG" ] ; then
+    INSTALL=`echo "$DU1 - $DU1PREV" | bc`
+    INSTALLMB=`echo "scale=2; $DU1MB - $DU1MBPREV" | bc`
+    echo -e "Installed files disk usage:\t\t\t\t$INSTALL KB or $INSTALLMB MB\n" >> "$REPORT"
+    # Append install values for grand total
+    INSTALL2="$INSTALL2 + $INSTALL"
+    INSTALLMB2="$INSTALLMB2 + $INSTALLMB"
+  fi
+
+  # Set variables to calculate installed files disk usage
+  DU1PREV=$DU1
+  DU1MBPREV=$DU1MB
+
+  # Append log name
+  echo -e "\n\t$log" >> "$REPORT"
+
+  # Dump time values
+  echo -e "Build time is:\t\t\t$BUILDTIME" >> "$REPORT"
+  echo -e "Build time in seconds is\t$TIME" >> "$REPORT"
+  echo -e "Approximate SBU time is:\t$SBU" >> "$REPORT"
+
+  # Dump disk usage values
+  echo -e "\nDisk usage before unpack the package:\t\t\t$DU1 KB or $DU1MB MB" >> "$REPORT"
+  echo -e "Disk usage before delete sources and build dirs:\t$DU2 KB or $DU2MB MB" >> "$REPORT"
+  echo -e "Required space to build the package:\t\t\t$REQUIRED1 KB or $REQUIRED2 MB\n" >> "$REPORT"
+
+done
+
+# Dump grand totals
+TOTALSBU=`echo "scale=3; ${SBU2}" | bc`
+echo -e "\nTotal time required to build the systen:\t$TOTALSBU SBU\n" >> "$REPORT"
+TOTALINSTALL=`echo "${INSTALL2}" | bc`
+TOTALINSTALLMB=`echo "scale=2; ${INSTALLMB2}" | bc`
+echo -e "Total Installed files disk usage
+    (including /tools but not /sources):\t$TOTALINSTALL KB or $TOTALINSTALLMB MB\n" >> "$REPORT"
+
+