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#!/usr/bin/env bash
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TRACING_USERS="${TRACING_USERS:-1}"
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TRACING_USER_1=root
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TRACING_USER_2=kstewart
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QDISC_DELAY="${QDISC_DELAY:-300ms}"
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GEN_WAIT="${GEN_WAIT:-1000000}"
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KILL_TIMEOUT="${KILL_TIMEOUT:-3}"
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USE_LIBTOOL="${USE_LIBTOOL:-1}" # Set to 0 to run via search path instead
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BT2_PATH="$(realpath "${BT2_PATH:-../babeltrace2}")"
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TOOLS_PATH="$(realpath "${TOOLS_PATH:-../lttng-tools}")"
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TRACE_DIR="$(realpath "${TRACE_DIR:-./trace}")"
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BABELTRACE_LOG_FILE="$(realpath "${BABELTRACE_LOG_FILE:-babeltrace.log}")"
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RELAYD_LOG_FILE="$(realpath "${RELAYD_LOG_FILE:-relayd.log}")"
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SESSIOND_LOG_FILE="$(realpath "${SESSIOND_LOG_FILE:-sessiond.log}")"
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babeltrace="$(command -v babeltrace2)"
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lttng="$(command -v lttng)"
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lttng_sessiond="$(command -v lttng-sessiond)"
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lttng_relayd="$(command -v lttng-relayd)"
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gen_ust="${TOOLS_PATH}/tests/utils/testapp/gen-ust-events/gen-ust-events"
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if [[ "${USE_LIBTOOL}" != "0" ]] ; then
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babeltrace="libtool --mode=execute ${BT2_PATH}/src/cli/babeltrace2"
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lttng="libtool --mode=execute ${TOOLS_PATH}/src/bin/lttng/lttng"
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lttng_sessiond="libtool --mode=execute ${TOOLS_PATH}/src/bin/lttng-sessiond/lttng-sessiond"
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lttng_relayd="libtool --mode=execute ${TOOLS_PATH}/src/bin/lttng-relayd/lttng-relayd"
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gen_ust="libtool --mode=execute ${gen_ust}"
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fi
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function _stop_by_pgrep()
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{
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local PROC="${1}"
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local RETRY_INTERVAL="${3:-1}"
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local TIMEOUT="${2:-${KILL_TIMEOUT}}"
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local TRIES=0
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while pgrep "${PROC}" ; do
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if [[ "${TRIES}" -gt "${TIMEOUT}" ]] ; then
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killall -9 "${PROC}"
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sleep "${RETRY_INTERVAL}"
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continue
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fi
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killall "${PROC}"
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sleep "${RETRY_INTERVAL}"
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TRIES=$((TRIES+1))
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done
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}
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function stop_sessiond()
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{
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_stop_by_pgrep lttng-sessiond
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}
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function stop_relayd()
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{
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_stop_by_pgrep lttng-relayd
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}
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rm "${BABELTRACE_LOG_FILE}"
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rm "${RELAYD_LOG_FILE}"
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rm "${SESSIOND_LOG_FILE}"
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rm -rf "${TRACE_DIR:-}"
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$lttng_sessiond -vvv --verbose-consumer &> "${SESSIOND_LOG_FILE}" &
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sleep 3
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TRACEE_PIDS=()
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TRACED_APPS_COUNT=0
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for i in $(seq $TRACING_USERS) ; do
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VAR_NAME="TRACING_USER_$i"
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if [[ -n "${!VAR_NAME}" ]] ; then
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su "${!VAR_NAME}" -- $gen_ust -i 10000000 -w $GEN_WAIT &
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TRACEE_PIDS+=($!)
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TRACED_APPS_COUNT=$((TRACED_APPS_COUNT+1))
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fi
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done
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$lttng create --live
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$lttng enable-event -u --all
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$lttng start
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START="$(date +%s.%N)"
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tc qdisc add dev lo root netem delay $QDISC_DELAY
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time $lttng destroy
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END="$(date +%s.%N)"
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echo -e "$TRACED_APPS_COUNT\t$QDISC_DELAY\t$START\t$END\t$(bc <<< "$END - $START")" >> results
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# Cleanup
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stop_sessiond
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_stop_by_pgrep gen-ust-events
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tc qdisc del dev lo root
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kill "${TRACEE_PIDS[@]}"
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