#! /bin/sh
# PCP QA Test No. 128
# Check NFS Server and Client stats (v2 and v3)
#
# Copyright (c) 1995-2002 Silicon Graphics, Inc.  All Rights Reserved.
#

seq=`basename $0`
echo "QA output created by $seq"

# get standard filters
. ./common.product
. ./common.filter
. ./common.check

_need_metric nfs.server.reqs
_need_metric nfs3.server.reqs
_need_metric nfs.client.reqs
_need_metric nfs3.client.reqs

trap "rm -f $tmp.*; exit" 0 1 2 3 15
signal=$PCP_BINADM_DIR/pmsignal

get_pminfo()
{
    perl -e '
        open STATS, "pminfo -f '$1' |" || die "pminfo: $!";
        while (<STATS>) {
            s/readdir\+/readdirplus/g;
            if (m/.*"(\S+)"] value (\d+)/) {
                printf("'$2'_%s %d\n", $1, $2);
            }
        }
        close STATS;
    '
}

get_nfsstat()
{
    perl -e '
    	$prefix = "";
	open STATS, "nfsstat -n |" || die "nfsstat: $!";
	while (<STATS>) {
	    if (m/server nfs v2/i)          { $prefix = "nfs2_server_reqs_"; }
	    elsif (m/server nfs v3/i)       { $prefix = "nfs3_server_reqs_"; }
	    elsif (m/client nfs v2/i)       { $prefix = "nfs2_client_reqs_"; }
	    elsif (m/client nfs v3/i)       { $prefix = "nfs3_client_reqs_"; }
	    # NFSv4 unsupported.  Reset prefix to "" to ensure
	    # that NFSv4 stats are not incorrectly attributed to
	    # another NFS version.
	    elsif (m/client nfs v4/i)       { $prefix = ""; }
	    elsif (m/server nfs v4/i)	    { $prefix = ""; }
    	    elsif ($prefix eq "")	    { next; }
	    elsif (m/((\d+)\s+\d+%)+/g) {
		@values = split(/\s+/);
		#print "found - @values, @instances\n";
		for ($i = 0; $i <= $#instances; $i++) {
		    print $prefix, $instances[$i], " ", $values[$i*2], "\n";
		}
	    }
	    elsif (m/((\S+)\s+)+/g) {
		#print "instances - $_\n";
		@instances = split(/\s+/);
	    }
	}
	close STATS;
    '
}

# real QA test starts here

# if we can find a nfs loop-back mount, go hammer on it for a while
#
mnt=''
[ -d /hosts/localhost/usr ] && mnt=/hosts/localhost/usr

cat > $tmp.workload << EOF
ls -R /$mnt >/dev/null 2>/dev/null &
KILL_PID=\$!
sleep 3
$signal -s KILL \$KILL_PID >/dev/null 2>&1
EOF
chmod u+x $tmp.workload

$tmp.workload >/dev/null 2>&1
sleep 2

rm -f $tmp.info $tmp.stat $tmp.join $seq.full $tmp.info2 $tmp.stat2

echo | tee -a $seq.full
echo "fetching nfsstat values..." | tee -a $seq.full
get_nfsstat 2>$tmp.err | tee -a $seq.full >$tmp.stat 
LC_COLLATE=POSIX sort -d < $tmp.stat > $tmp.stat2
( echo "stderr from get_nfsstat ..."; cat $tmp.err ) >>$seq.full

echo | tee -a $seq.full
echo "fetching pminfo values..." | tee -a $seq.full
get_pminfo nfs.server.reqs nfs2_server_reqs  | tee -a $seq.full >$tmp.info
get_pminfo nfs3.server.reqs nfs3_server_reqs | tee -a $seq.full >>$tmp.info
get_pminfo nfs.client.reqs nfs2_client_reqs  | tee -a $seq.full >>$tmp.info
get_pminfo nfs3.client.reqs nfs3_client_reqs | tee -a $seq.full >>$tmp.info
LC_COLLATE=POSIX sort -d < $tmp.info > $tmp.info2

echo | tee -a $seq.full
echo "comparing all values... (details in $seq.full)" | tee -a $seq.full
LC_COLLATE=POSIX join $tmp.info2 $tmp.stat2 | while read metric nfsvalue pmvalue
do
	_within_tolerance $metric $nfsvalue $pmvalue 2% -v >>$seq.full
	[ $? -eq 1 ] && echo failed cross check on $metric: $nfsvalue $pmvalue
done
echo done
