#!/usr/local/plan9/bin/rc

nrun=20
md=./cmd/markdown/markdown

fn timego{
	run $md go
}
fn timegoprev{
	run ./,,prevmd/src/github.com/knieriem/markdown/$md goprev
}

fn timec{
	run ,,pmd/markdown c
}

fn run{
	xtime $1 < m  >[2=1] > /tmp/,,out.$2
}

fn xtime{
#	/usr/bin/time -f '%Uu %Ss %er %MkB %C' $*
	/usr/bin/time -f '%U %M' $*
}

fn cmpout{
	if (! cmp /tmp/,,out.$1 /tmp/,,out.$2) {
		echo not equal: $1 $2 >[1=2]
		exit -1
	}
}

{
	start = 1
	for (i in `{seq 1 $nrun}) {
		echo `{timec} `{timego} `{timegoprev}
		if (~ $start 1){
			cmpout go c
			cmpout go goprev
			start = 0
		}
	}
} | awk '
	BEGIN {
		pfx = "#"
	}
	{
		tc = $1
		mc = $2
		tgo = $3
		mgo = $4
		tprev = $5
		mprev = 46
	}
	{
		print pfx, "c:", tc, "go:" tgo, "frac:",  tgo/tc, "go,prev:", tgo/tprev*100, " %", "mem:", mgo/mc
	}
	NR < 5 { next }
	{
		pfx = ""
		csum += tc
		gosum += tgo
		goprevsum += tprev
		n++
	}
	END {
		print "SUM"
		print "c:", csum, "go:", gosum, "n:", n, "frac", gosum/csum, gosum/goprevsum*100, " %"
	}
'