🚀 go-pugleaf

Is there a "standard" and reasonably repeatable way to measure the
real performance of a postscript processor? Are there any "standard"
(public-domain) benchmark used for this purpose? (I know about the
"blue book" and other standard graphic examples, but they do not make
any claim of being "representative" of real usage, as whetstones and 
dhrystones try to be, in the scientific world).
How is performance measured? Stopwatch including page-eject? "usertime"?
Are pages separated by "quit"s? How does the usertime encapsulation
ensures objectivity? How do you separate I/O from processing from imaging
from printing times? How are caching and other "system" parameters isolated?

Anyone with some knowledge on postscript benchmarking care to expand?
Thanks!