XMARK, GRAPHICS, The XMARK benchmark script, written as a C program ! A favorite benchmark for X11 is the xmark. Unfortunately, the xmark benchmark was a Unix script, which makes it hard to use on OpenVMS. This program implements the script for V1.15 of xmark as a C program. You must have a valid x11perf data file, which can be created by: $ define/user sys$output xperf.dat $ x11perf -rop "GXxor" "GXcopy" -all