$ cat benchmark.encryption.gnuplot
set title "Time to insert 10000 records (Commit range=100) on db2 9.5.0 on linux i386"
set xlabel "Attempt"
set ylabel "Seconds"
set terminal png       # gnuplot recommends setting terminal before output
set output "benchmark.encryption.png"
set datafile separator ";"
plot [] [] "benchmark.encryption.data" using 2 title "multi-procs 2 calls - no encryption" with lines lt 2, \
           "benchmark.encryption.data" using 3 title "multi-procs 2 calls - with encryption" with lines lt 1