#!/bin/sh
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
# 
#   http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
#
# A basic "benchmark" to generate performacne samples of throughput
# and latency against a single cluster member while they are replicating.
#
# Must be run in the qpid src/tests build directory.
# 

usage() {
cat <<EOF
Usage: $0 [options] -- client hosts --- broker hosts
Read the script for options.
EOF
}
# Defaults
TESTDIR=${TESTDIR:-$PWD}    # Absolute path to test exes on all hosts.
SCRIPTDIR=${SCRIPTDIR:-`dirname $0`} #  Path to local test scripts directory.
SAMPLES=10			# Runs of each test.
COUNT=${COUNT:-10000}		# Count for pub/sub tests.
SIZE=${SIZE:-600}		# Size of messages
ECHO=${ECHO:-1000}		# Count for echo test.
NSUBS=${NSUBS:-4}
NPUBS=${NPUBS:-4}

collect() { eval $COLLECT=\""\$$COLLECT $*"\"; }
COLLECT=ARGS
while test $# -gt 0; do
    case $1 in
	--testdir) TESTDIR=$2 ; shift 2 ;;
	--samples) SAMPLES=$2 ; shift 2 ;;
	--count) COUNT=$2 ; shift 2 ;;
	--echos) ECHO=$2 ; shift 2 ;;
	--size) SIZE=$2 ; shift 2 ;;
	--nsubs) NSUBS=$2 ; shift 2 ;;
	--npubs) NPUBS=$2 ; shift 2 ;;
	--) COLLECT=CLIENTARG; shift ;;
	---) COLLECT=BROKERARG; shift;;
	*) collect $1; shift ;;
    esac
done

CLIENTS=${CLIENTARG:-$CLIENTS}
BROKERS=${BROKERARG:-$BROKERS}
test -z "$CLIENTS" && { echo "Must specify at least one client host."; exit 1; }
test -z "$BROKERS" && { echo "Must specify at least one broker host."; exit 1; } 

export TESTDIR			# For perfdist
CLIENTS=($CLIENTS)		# Convert to array
BROKERS=($BROKERS)
trap "rm -f $FILES" EXIT

dosamples() {
    FILE=`mktemp`
    FILES="$FILES $FILE"
    TABS=`echo "$HEADING" | sed s'/[^	]//g'`
    {
	echo "\"$*\"$TABS"
	echo "$HEADING" 
	for (( i=0; i<$SAMPLES; ++i)) ; do echo "`$*`" ; done
	echo
    } | tee $FILE
}

HEADING="pub	sub	total	Mb"
dosamples $SCRIPTDIR/perfdist --size $SIZE --count $COUNT --nsubs $NSUBS --npubs $NPUBS -s -- ${CLIENTS[*]} --- ${BROKERS[*]}
HEADING="pub"
dosamples ssh -A ${CLIENTS[0]} $TESTDIR/publish --routing-key perftest0 --size $SIZE --count $COUNT -s -b ${BROKERS[0]} 
HEADING="sub"
dosamples ssh -A ${CLIENTS[0]} $TESTDIR/consume --queue perftest0 -s --count $COUNT -b ${BROKERS[0]} 
HEADING="min	max	avg"
dosamples ssh -A ${CLIENTS[0]} $TESTDIR/echotest --count $ECHO -s -b ${BROKERS[0]} 

echo
echo "Tab separated spreadsheet (also saved as benchmark.tab):"
echo

echo "benchmark -- ${CLIENTS[*]} --- ${BROKERS[*]} " | tee benchmark.tab
paste $FILES | tee -a benchmark.tab