set output '| ps2pdf -dEPSCrop - data/freshness.pdf'
set terminal postscript color eps enhanced 'Times' 24
set pointsize 1.5

set xlabel "Freshness requirement in seconds"
set ylabel "Peak requests/sec"
set yrange [0:1999]

dbpeak = `awk '{print $6}' < data/mediumdb-modified | sort -nr | head -n1`

plot [x = 0:*] \
     "data/mediumdb-txcache-freshness-peaks" \
       title "TxCache" with linespoints lt 1 pt 2 lc 3, \
     dbpeak title "No caching (baseline)" \
       with line lt 2 lc 1