use an absoulte path as out dir and call plot.py only once

Using the absolute path fixes the energy measurements because perf was
called in $HOME with a relative path inside emper-io-eval which did
break.
And using only a single eval.py call means we only hav one desc.yml file
containing everything for that run.

eval-muhq-ma.sh

@@ -15,7 +15,7 @@ RUNS=${RUNS:-${DEFAULT_RUNS}}
 SSH_PORT=${SSH_PORT:-${DEFAULT_SSH_PORT}}
 TIME=${TIME:-${DEFAULT_TIME}}
 
-OUT="results/ma"
+OUT="${HOME}/emper-io-eval/results/ma"
 # move old results
 if [ -d "$OUT" ]; then
 	ctime="$(date --date=@"$(stat -c '%Y' "${OUT}")" '+%Y-%m-%dT%H_%M_%S')"
@@ -120,14 +120,12 @@ eval_latency() {
 
 	mkdir -p "${OUT}"/latency
 
-	./eval.py "${COMMON_ARGS_LATENCY[@]}" -f {no-sleep,vanilla}-{200us,${COMP}} \
-		-- emper go-200us tokio-200us
-
 	./eval.py "${COMMON_ARGS_LATENCY[@]}" -f \
+		{no-sleep,vanilla}-{200us,${COMP}} \
 		{pipe,waitfd}{,-no-comp}-{200us,${COMP}} \
 		io-stealing-{pipe,waitfd}-no-comp-{200us,${COMP}} \
 		io-notification-{waitfree,waitfd}-no-comp-{200us,${COMP}} \
-		-- emper
+		-- emper go-200us tokio-200us
 }
 
 [[ "${EVAL_THROUGHPUT:=true}" != "false" ]] && eval_throughput