"kern2-hist.txt" with lp lt 1 title "Kernel GW, 2 byte messages", \
"kern8-hist.txt" with lp lt 2 title "Kernel GW, 8 byte messages", \
"user2-hist.txt" with lp lt 1 title "Userspace GW, 2 byte messages", \
"kern2-hist.txt" with lp lt 1 title "Kernel GW, 2 byte messages", \
"kern8-hist.txt" with lp lt 2 title "Kernel GW, 8 byte messages", \
"user2-hist.txt" with lp lt 1 title "Userspace GW, 2 byte messages", \