HISTFRACTION
p->lowpc = ROUNDDOWN(lowpc, HISTFRACTION * sizeof(HISTCOUNTER));
p->highpc = ROUNDUP(highpc, HISTFRACTION * sizeof(HISTCOUNTER));
p->kcountsize = p->textsize / HISTFRACTION;
i /= HISTFRACTION * sizeof(*g->kcount);
lowpc = ROUNDDOWN(KERNBASE, HISTFRACTION * sizeof(HISTCOUNTER));
highpc = ROUNDUP((u_long)etext, HISTFRACTION * sizeof(HISTCOUNTER));
kcountsize = textsize / HISTFRACTION;