Mercurial > yaffs-ecoscentric-gpl

annotate packages/fs/yaffs/current/src/linux-tests/plot_data.sh @ 425:dea4d7d250ad ecos

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Move sources into packages/fs/yaffs/current/src/
author Ross Younger <wry@ecoscentric.com>
date Fri, 14 May 2010 16:03:09 +0100
parents linux-tests/plot_data.sh@24323a6af10c
children
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1 #!/bin/sh
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2 # Script that gathers data erased vs free data from /proc/yaffs_stats and simultaneously \
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3 # plots it using gnuplot.
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6 #Gather settings
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7 log_file=data
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8 gather_delay=1
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9
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10 done_file=plot_done
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12 # Plot settings
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13 trunc_file=trunc_data
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14 plot_samples=1000
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15 plot_delay=2
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21 # Gathering task
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22
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23 gather_data() {
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24 i=0;
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25 rm -f $log_file
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27 while [ ! -e $done_file ] ; do
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28 str=$(cat /proc/yaffs_stats)
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29 echo "$i, $str"
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30 echo "$i, $str" >> $log_file
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31 let i=$i+1
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32 sleep $gather_delay
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33 done
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34 }
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37 # Plotting task
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38 # Periodically creates a truncated version of the log file and
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39 # outputs commands into gnuplot, thus driving gnuplot
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40
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41 drive_gnuplot(){
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42 sleep 5
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43 tail -$plot_samples $log_file > $trunc_file
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44
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45 plot_str=" plot '$trunc_file' using 1:3 with linespoints title 'free', '' using 1:4 with linespoints title 'erased'"
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47 echo "set title 'yaffs free space and erased space'"
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49 echo $plot_str
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51 while [ ! -e $done_file ]; do
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52 sleep $plot_delay
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53 tail -$plot_samples $log_file > $trunc_file
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54 echo replot
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55 done
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56 }
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59 rm -f $done_file
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60 trap "touch $done_file" INT
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62 echo "Start gathering task in background"
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63 gather_data &
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64 echo "Run plotting task"
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65 drive_gnuplot | gnuplot
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67 wait
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69 echo "All done"
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