diff --git a/scripts/benchmark.sh b/scripts/benchmark.sh
index 17c96f1d..0bd64e4a 100755
--- a/scripts/benchmark.sh
+++ b/scripts/benchmark.sh
@@ -45,13 +45,22 @@ fi
 chunk_size=51200
 # for rs-fnt with different packet sizes
 word_size=2
-for ec_type in rs-fnt rs-fnt-sys; do
-  for k in 16; do
-    for n in 256 1024; do
-      m=$((n-k))
-      for pkt_size in 256 512 1024; do
-        ${bin} -e ${ec_type} -w ${word_size} -k ${k} -m ${m} -c ${chunk_size} -s ${sce_type} -g ${threads_nb} -f ${show_type} -p ${pkt_size} -n ${samples_nb}
-      done
+for word_size in 1 2; do
+    for type_size in 2 4; do
+        max_len=$((256**word_size))
+        if ((type_size>word_size)); then
+            for ec_type in rs-fnt rs-fnt-sys; do
+              for k in 16; do
+                for n in 32 256 1024; do
+                  if ((n<max_len)); then
+                    m=$((n-k))
+                    for pkt_size in 256 512 1024; do
+                      ${bin} -e ${ec_type} -w ${word_size} -t ${type_size} -k ${k} -m ${m} -c ${chunk_size} -s ${sce_type} -g ${threads_nb} -f ${show_type} -p ${pkt_size} -n ${samples_nb}
+                    done
+                  fi
+                done
+              done
+            done
+        fi
     done
-  done
 done