#!/usr/sbin/dtrace -s

#pragma D option quiet

::fop_read:entry
/self->trace == 0 && (((vnode_t *)arg0)->v_path)/
{
	vp = (vnode_t*)arg0;
	uio = (uio_t*)arg1;
	self->path=stringof(vp->v_path);
	self->trace = 1;
	@rio[stringof(vp->v_path), "logical"] = count();
	@rbytes[stringof(vp->v_path), "logical"] = sum(uio->uio_resid);
}

::fop_read:return
/self->trace == 1/
{
	self->trace = 0;
}

io::bdev_strategy:start
/self->trace/
{
	@rio[self->path, "physical"] = count();
	@rbytes[self->path, "physical"] = sum(args[0]->b_bcount);
}

tick-1s
{
	printf ("\nrio\n");
	printa ("%-60s %10s %10@d\n", @rio);
	trunc (@rio);
	printf ("\nrbytes\n");
	printa ("%-60s %10s %10@d\n", @rbytes);
	trunc (@rbytes);
}