\setupbodyfont[dejavu]

\starttext

\dontcomplain

\startluacode
    if jit then
        jit.on()
        jit.off()
    end
\stopluacode

\startluacode
    statistics.starttiming()
\stopluacode

\dorecurse {1000} {
    {\bf \red   \input tufte } \blank
    {\it \green \input tufte } \blank
    {\tf \blue  \input tufte } \page
}

\startluacode
    statistics.stoptiming()
    context(statistics.elapsedtime())
\stopluacode

\stoptext