runtime·parforsetup 2396 src/pkg/runtime/mgc0.c 	runtime·parforsetup(work.markfor, work.nproc, RootCount + runtime·allglen, nil, false, markroot);
runtime·parforsetup 1050 src/pkg/runtime/runtime.h void	runtime·parforsetup(ParFor *desc, uint32 nthr, uint32 n, void *ctx, bool wait, void (*body)(ParFor*, uint32));