diff --git a/ansible/roles/mrzcpd/files/helm/templates/_config.tpl b/ansible/roles/mrzcpd/files/helm/templates/_config.tpl
index ad1bf817..1ac61c28 100644
--- a/ansible/roles/mrzcpd/files/helm/templates/_config.tpl
+++ b/ansible/roles/mrzcpd/files/helm/templates/_config.tpl
@@ -323,6 +323,7 @@ poll_wait_enable=1
 virtaddr=0x500000000000
 loglevel=7
 huge-dir=/run/mrzcpd/hugepages
+legacy_mem=0
 
 [keepalive]
 check_spinlock=1
diff --git a/ansible/roles/trex/files/generate-trex-conf.sh b/ansible/roles/trex/files/generate-trex-conf.sh
index fb56972f..7c540584 100644
--- a/ansible/roles/trex/files/generate-trex-conf.sh
+++ b/ansible/roles/trex/files/generate-trex-conf.sh
@@ -14,7 +14,7 @@ done
 port_limit=${#arr[@]}
 
 declare -A NUMA
-for cpu in ${CPU_AFFINITY[@]:2}; do
+for cpu in ${CPU_AFFINITY[@]}; do
   numa_node=$(lscpu -p=CPU,NODE | grep "^$cpu," | cut -d',' -f2)
   NUMA[$numa_node]+="$cpu,"
 done
@@ -46,8 +46,8 @@ cat << EOF > /etc/trex_cfg.yaml
             dest_mac   : "aa:bb:cc:dd:ee:fe"
             src_mac    : "00:11:22:33:44:54"
   platform:
-    master_thread_id: ${CPU_AFFINITY[0]}
-    latency_thread_id: ${CPU_AFFINITY[1]}
+    master_thread_id: ${MASTER_IOCORE}
+    latency_thread_id: ${LATENCY_IOCORE}
     dual_if:
 EOF
 
diff --git a/ansible/roles/trex/files/helm/templates/deployment.yaml b/ansible/roles/trex/files/helm/templates/deployment.yaml
index f1d5b46d..0ea6bcbd 100644
--- a/ansible/roles/trex/files/helm/templates/deployment.yaml
+++ b/ansible/roles/trex/files/helm/templates/deployment.yaml
@@ -43,6 +43,10 @@ spec:
             hugepages-1Gi: {{.Values.trex.hugepages }}Gi
             memory: 100Mi
         env:
+        - name: MASTER_IOCORE
+          value: {{.Values.trex.master |quote}}
+        - name: LATENCY_IOCORE
+          value: {{.Values.trex.latency |quote}}
         - name: CPU_AFFINITY
           value: {{ range $index, $cpu :=.Values.trex.cpu_affinity -}}{{- if eq $index 0 -}}{{$cpu}}{{- else -}},{{$cpu}}{{- end -}}{{- end }}
         - name: TREX_PATH