-plot "../20110405/synwrite-256M.data" using 1:($2*1000) with linespoints title "128 MB Write Buffer", \
- "../20110405/synwrite-2048M.data" using 1:($2*1000) with linespoints title "1 GB Write Buffer"
+plot "../20110405/synwrite-256M-summary.data" using 1:($2*1000):($3*1000) with yerrorbars title "128 MB Write Buffer", \
+ "../20110405/synwrite-2048M-summary.data" using 1:($2*1000):($3*1000) with yerrorbars title "1 GB Write Buffer", \
+ "../20110405/synwrite-256M-summary.data" using 1:($2*1000) with lines lt 1 notitle, \
+ "../20110405/synwrite-2048M-summary.data" using 1:($2*1000) with lines lt 2 notitle