perf instead of time

Author: ZocoLini

.gitignore

@@ -96,5 +96,6 @@ dev-container/
 output/
 .venv/
 fort.1
+perf_out.tmp
 ESTADO.md
 .cache/

scripts/scalability-test.sh

@@ -9,7 +9,7 @@ REPEATS=3
 
 # === OUTPUT ===
 OUT_FILE="output/scalability_results.csv"
-echo "Variant,Procs,Run,RealTime(s),UserTime(s),SysTime(s)" > $OUT_FILE
+echo "Variant,Procs,Run,Metric,Value,Unit" > "$OUT_FILE"
 
 # === MAIN LOOP ===
 for VARIANT in "${VARIANTS[@]}"; do
@@ -19,23 +19,27 @@ for VARIANT in "${VARIANTS[@]}"; do
   if [[ "$VARIANT" == "serial" ]]; then
     echo "  Serial run (1 proc only)..."
     for (( R=1; R<="$REPEATS"; R++ )); do
-      /usr/bin/time -f "$VARIANT,1,$R,%e,%U,%S" -a -o "$OUT_FILE" \
+      perf stat -x, -o perf_out.tmp -- \
         ./build-"$VARIANT"/modules/cli/cli solve \
           -c example-files/lotka_volterra_cuqdyn_config.xml \
           -s example-files/lotka_volterra_ess_"$VARIANT"_config.xml \
           -d example-files/lotka_volterra_paper_data.txt \
           -o output/
+
+      awk -F, -v v="$VARIANT" -v r="$R" 'NF >= 3 { print v ",1," r "," $3 "," $1 "," $2 }' perf_out.tmp >> "$OUT_FILE"
     done
   else
     for PROCS in "${PROCS_LIST[@]}"; do
       echo "  Running with $PROCS processes..."
       for (( R=1; R<="$REPEATS"; R++ )); do
-        /usr/bin/time -f "$VARIANT,$PROCS,$R,%e,%U,%S" -a -o "$OUT_FILE" \
+        perf stat -x, -o perf_out.tmp -- \
           mpirun -np "$PROCS" ./build-"$VARIANT"/modules/cli/cli solve \
             -c example-files/lotka_volterra_cuqdyn_config.xml \
             -s example-files/lotka_volterra_ess_"$VARIANT"_config.xml \
             -d example-files/lotka_volterra_paper_data.txt \
             -o output/
+
+        awk -F, -v v="$VARIANT" -v p="$PROCS" -v r="$R" 'NF >= 3 { print v "," p "," r "," $3 "," $1 "," $2 }' perf_out.tmp >> "$OUT_FILE"
       done
     done
   fi