diff --git a/infra/packet_manager/CMakeLists.txt b/infra/packet_manager/CMakeLists.txt
index 9b9c132..41af01b 100644
--- a/infra/packet_manager/CMakeLists.txt
+++ b/infra/packet_manager/CMakeLists.txt
@@ -1,4 +1,5 @@
 add_library(packet_manager
+    packet_manager_runtime.c
     packet_manager.c
     packet_parser.c
     packet_builder.c
diff --git a/infra/packet_manager/packet_manager.c b/infra/packet_manager/packet_manager.c
index 7e903a6..eba87ec 100644
--- a/infra/packet_manager/packet_manager.c
+++ b/infra/packet_manager/packet_manager.c
@@ -1,17 +1,10 @@
 #include <assert.h>
 
-#include "stellar/mq.h"
-#include "stellar/module_manager.h"
-
 #include "utils.h"
 #include "packet_internal.h"
+#include "packet_manager_runtime.h"
 #include "packet_manager_internal.h"
-
-#define PACKET_MANAGER_LOG_ERROR(format, ...) STELLAR_LOG_ERROR(__thread_local_logger, "packet manager", format, ##__VA_ARGS__)
-#define PACKET_MANAGER_LOG_DEBUG(format, ...) STELLAR_LOG_DEBUG(__thread_local_logger, "packet manager", format, ##__VA_ARGS__)
-#define PACKET_MANAGER_LOG_FATAL(format, ...) STELLAR_LOG_FATAL(__thread_local_logger, "packet manager", format, ##__VA_ARGS__)
-
-TAILQ_HEAD(packet_queue, packet);
+#include "stellar/module_manager.h"
 
 struct packet_manager_config
 {
@@ -25,18 +18,6 @@ struct packet_manager_schema
     int topic_id[PACKET_STAGE_MAX];
 };
 
-struct packet_manager_runtime
-{
-    enum packet_stage stage;
-    struct packet_queue queue[PACKET_QUEUE_MAX];
-
-    void *cb_args;
-    on_packet_claimed_callback *claimed_cb;
-
-    struct mq_runtime *mq;
-    struct packet_manager_stat stat;
-};
-
 struct packet_manager
 {
     struct packet_manager_config *cfg;
@@ -44,29 +25,6 @@ struct packet_manager
     struct packet_manager_runtime *runtime[MAX_THREAD_NUM];
 };
 
-/******************************************************************************
- * packet stage
- ******************************************************************************/
-
-const char *packet_stage_to_str(enum packet_stage stage)
-{
-    switch (stage)
-    {
-    case PACKET_STAGE_PREROUTING:
-        return "PACKET_STAGE_PREROUTING";
-    case PACKET_STAGE_INPUT:
-        return "PACKET_STAGE_INPUT";
-    case PACKET_STAGE_FORWARD:
-        return "PACKET_STAGE_FORWARD";
-    case PACKET_STAGE_OUTPUT:
-        return "PACKET_STAGE_OUTPUT";
-    case PACKET_STAGE_POSTROUTING:
-        return "PACKET_STAGE_POSTROUTING";
-    default:
-        return "PACKET_STAGE_UNKNOWN";
-    }
-}
-
 /******************************************************************************
  * packet manager config
  ******************************************************************************/
@@ -185,47 +143,6 @@ error_out:
     return NULL;
 }
 
-/******************************************************************************
- * packet manager runtime
- ******************************************************************************/
-
-static void packet_manager_runtime_free(struct packet_manager_runtime *runtime)
-{
-    if (runtime)
-    {
-        for (int i = 0; i < PACKET_QUEUE_MAX; i++)
-        {
-            struct packet *pkt = NULL;
-            while ((pkt = TAILQ_FIRST(&runtime->queue[i])))
-            {
-                TAILQ_REMOVE(&runtime->queue[i], pkt, stage_tqe);
-
-                // TODO: free packet and free mbuff
-                packet_free(pkt);
-            }
-        }
-    }
-    free(runtime);
-    runtime = NULL;
-}
-
-static struct packet_manager_runtime *packet_manager_runtime_new()
-{
-    struct packet_manager_runtime *runtime = calloc(1, sizeof(struct packet_manager_runtime));
-    if (runtime == NULL)
-    {
-        PACKET_MANAGER_LOG_ERROR("failed to allocate memory for packet_manager_runtime");
-        return NULL;
-    }
-
-    for (int i = 0; i < PACKET_QUEUE_MAX; i++)
-    {
-        TAILQ_INIT(&runtime->queue[i]);
-    }
-
-    return runtime;
-}
-
 /******************************************************************************
  *  packet manager
  ******************************************************************************/
@@ -272,15 +189,20 @@ error_out:
 
 void packet_manager_free(struct packet_manager *pkt_mgr)
 {
+    struct packet_manager_runtime *pkt_mgr_rt = NULL;
+
     if (pkt_mgr)
     {
         if (pkt_mgr->cfg)
         {
             for (uint16_t i = 0; i < pkt_mgr->cfg->nr_worker_thread; i++)
             {
-                if (pkt_mgr->runtime[i])
+                pkt_mgr_rt = pkt_mgr->runtime[i];
+                if (pkt_mgr_rt)
                 {
-                    packet_manager_runtime_free(pkt_mgr->runtime[i]);
+                    PACKET_MANAGER_LOG_INFO("runtime: %p, idx: %d, will be cleaned", pkt_mgr_rt, i);
+                    packet_manager_runtime_print_stat(pkt_mgr_rt);
+                    packet_manager_runtime_free(pkt_mgr_rt);
                 }
             }
         }
@@ -310,7 +232,7 @@ void packet_manager_init(struct packet_manager *pkt_mgr, uint16_t thread_id, str
     assert(mq_rt);
     struct packet_manager_runtime *runtime = pkt_mgr->runtime[thread_id];
 
-    runtime->mq = mq_rt;
+    packet_manager_runtime_init(runtime, mq_rt);
 }
 
 void packet_manager_ingress(struct packet_manager *pkt_mgr, uint16_t thread_id, struct packet *pkt)
@@ -319,22 +241,15 @@ void packet_manager_ingress(struct packet_manager *pkt_mgr, uint16_t thread_id,
     struct exdata_runtime *exdata_rt = exdata_runtime_new(pkt_mgr->schema->exdata);
     packet_set_user_data(pkt, exdata_rt);
 
-    runtime->stat.total.pkts_ingress++;
-    runtime->stat.queue[PACKET_STAGE_PREROUTING].pkts_in++;
-    TAILQ_INSERT_TAIL(&runtime->queue[PACKET_STAGE_PREROUTING], pkt, stage_tqe);
+    packet_manager_runtime_ingress(runtime, pkt);
 }
 
 struct packet *packet_manager_egress(struct packet_manager *pkt_mgr, uint16_t thread_id)
 {
     struct packet_manager_runtime *runtime = pkt_mgr->runtime[thread_id];
-
-    struct packet *pkt = TAILQ_FIRST(&runtime->queue[PACKET_STAGE_MAX]);
+    struct packet *pkt = packet_manager_runtime_egress(runtime);
     if (pkt)
     {
-        runtime->stat.total.pkts_egress++;
-        runtime->stat.queue[PACKET_STAGE_MAX].pkts_out++;
-        TAILQ_REMOVE(&runtime->queue[PACKET_STAGE_MAX], pkt, stage_tqe);
-
         struct exdata_runtime *exdata_rt = packet_get_user_data(pkt);
         exdata_runtime_free(exdata_rt);
     }
@@ -344,101 +259,31 @@ struct packet *packet_manager_egress(struct packet_manager *pkt_mgr, uint16_t th
 void packet_manager_dispatch(struct packet_manager *pkt_mgr, uint16_t thread_id)
 {
     struct packet_manager_runtime *runtime = pkt_mgr->runtime[thread_id];
-
-    for (int i = 0; i < PACKET_STAGE_MAX; i++)
-    {
-        runtime->stage = i;
-        packet_manager_print_stat(pkt_mgr, thread_id);
-
-        struct packet *pkt = NULL;
-        while ((pkt = TAILQ_FIRST(&runtime->queue[runtime->stage])))
-        {
-            packet_set_claim(pkt, false);
-            runtime->claimed_cb = NULL;
-            runtime->cb_args = NULL;
-
-            TAILQ_REMOVE(&runtime->queue[runtime->stage], pkt, stage_tqe);
-            runtime->stat.queue[runtime->stage].pkts_out++;
-
-            mq_runtime_publish_message(runtime->mq, runtime->stage, pkt);
-            mq_runtime_dispatch(runtime->mq);
-
-            if (packet_is_claim(pkt))
-            {
-                if (runtime->claimed_cb)
-                {
-                    runtime->claimed_cb(pkt, runtime->cb_args);
-                }
-                packet_set_claim(pkt, false);
-                continue;
-            }
-
-            TAILQ_INSERT_TAIL(&runtime->queue[runtime->stage + 1], pkt, stage_tqe);
-            runtime->stat.queue[runtime->stage + 1].pkts_in++;
-        }
-    }
-    runtime->stage = -1;
+    packet_manager_runtime_dispatch(runtime);
 }
 
 int packet_manager_claim_packet(struct packet_manager *pkt_mgr, uint16_t thread_id, struct packet *pkt, on_packet_claimed_callback cb, void *args)
 {
     struct packet_manager_runtime *runtime = pkt_mgr->runtime[thread_id];
-
-    if (packet_is_claim(pkt))
-    {
-        PACKET_MANAGER_LOG_ERROR("packet is already claimed, cannot claim again");
-        return -1;
-    }
-    else
-    {
-        runtime->claimed_cb = cb;
-        runtime->cb_args = args;
-        packet_set_claim(pkt, true);
-        runtime->stat.queue[runtime->stage].pkts_claim++;
-        return 0;
-    }
+    return packet_manager_runtime_claim_packet(runtime, pkt, cb, args);
 }
 
 void packet_manager_schedule_packet(struct packet_manager *pkt_mgr, uint16_t thread_id, struct packet *pkt, enum packet_stage stage)
 {
     struct packet_manager_runtime *runtime = pkt_mgr->runtime[thread_id];
-
-    if (stage >= PACKET_STAGE_MAX)
-    {
-        PACKET_MANAGER_LOG_ERROR("invalid stage %d", stage);
-        assert(0);
-        return;
-    }
-
-    runtime->stat.queue[stage].pkts_schedule++;
-    runtime->stat.queue[stage].pkts_in++;
-    TAILQ_INSERT_TAIL(&runtime->queue[stage], pkt, stage_tqe);
+    packet_manager_runtime_schedule_packet(runtime, pkt, stage);
 }
 
 struct packet_manager_stat *packet_manager_get_stat(struct packet_manager *pkt_mgr, uint16_t thread_id)
 {
     struct packet_manager_runtime *runtime = pkt_mgr->runtime[thread_id];
-
-    return &runtime->stat;
+    return packet_manager_runtime_get_stat(runtime);
 }
 
 void packet_manager_print_stat(struct packet_manager *pkt_mgr, uint16_t thread_id)
 {
     struct packet_manager_runtime *runtime = pkt_mgr->runtime[thread_id];
-
-    PACKET_MANAGER_LOG_DEBUG("runtime[%p] current stage: %s, pkts_ingress: %lu, pkts_egress: %lu",
-                             runtime, packet_stage_to_str(runtime->stage),
-                             runtime->stat.total.pkts_ingress, runtime->stat.total.pkts_egress);
-    for (int i = 0; i < PACKET_QUEUE_MAX; i++)
-    {
-        PACKET_MANAGER_LOG_DEBUG("runtime[%p] (%11s) queue stat => pkts_in: %lu, pkts_out: %lu, pkts_claim: %lu, pkts_schedule: %lu",
-                                 runtime,
-                                 packet_stage_to_str(i),
-                                 runtime->stat.queue[i].pkts_in,
-                                 runtime->stat.queue[i].pkts_out,
-                                 runtime->stat.queue[i].pkts_claim,
-                                 runtime->stat.queue[i].pkts_schedule);
-    }
+    packet_manager_runtime_print_stat(runtime);
 }
 
 /******************************************************************************
diff --git a/infra/packet_manager/packet_manager_internal.h b/infra/packet_manager/packet_manager_internal.h
index 13bdc3b..5264d4b 100644
--- a/infra/packet_manager/packet_manager_internal.h
+++ b/infra/packet_manager/packet_manager_internal.h
@@ -8,24 +8,6 @@ extern "C"
 #include "stellar/mq.h"
 #include "stellar/packet_manager.h"
 
-#define PACKET_QUEUE_MAX (PACKET_STAGE_MAX + 1)
-
-struct packet_manager_stat
-{
-    struct
-    {
-        uint64_t pkts_ingress;
-        uint64_t pkts_egress;
-    } total;
-    struct
-    {
-        uint64_t pkts_in;  // include the packets that are scheduled
-        uint64_t pkts_out; // include the packets that are claimed
-        uint64_t pkts_claim;
-        uint64_t pkts_schedule;
-    } queue[PACKET_QUEUE_MAX]; // the last queue is for sending packets
-};
-
 struct packet_manager *packet_manager_new(struct mq_schema *mq_schema, const char *toml_file);
 void packet_manager_free(struct packet_manager *pkt_mgr);
 
@@ -33,11 +15,10 @@ void packet_manager_init(struct packet_manager *pkt_mgr, uint16_t thread_id, str
 void packet_manager_ingress(struct packet_manager *pkt_mgr, uint16_t thread_id, struct packet *pkt);
 struct packet *packet_manager_egress(struct packet_manager *pkt_mgr, uint16_t thread_id);
 void packet_manager_dispatch(struct packet_manager *pkt_mgr, uint16_t thread_id);
+
 struct packet_manager_stat *packet_manager_get_stat(struct packet_manager *pkt_mgr, uint16_t thread_id);
 void packet_manager_print_stat(struct packet_manager *pkt_mgr, uint16_t thread_id);
 
-const char *packet_stage_to_str(enum packet_stage stage);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/infra/packet_manager/packet_manager_runtime.c b/infra/packet_manager/packet_manager_runtime.c
new file mode 100644
index 0000000..c7e6dcb
--- /dev/null
+++ b/infra/packet_manager/packet_manager_runtime.c
@@ -0,0 +1,173 @@
+#include <assert.h>
+#include <stdlib.h>
+
+#include "packet_internal.h"
+#include "packet_manager_runtime.h"
+
+const char *packet_stage_to_str(enum packet_stage stage)
+{
+    switch (stage)
+    {
+    case PACKET_STAGE_PREROUTING:
+        return "PACKET_STAGE_PREROUTING";
+    case PACKET_STAGE_INPUT:
+        return "PACKET_STAGE_INPUT";
+    case PACKET_STAGE_FORWARD:
+        return "PACKET_STAGE_FORWARD";
+    case PACKET_STAGE_OUTPUT:
+        return "PACKET_STAGE_OUTPUT";
+    case PACKET_STAGE_POSTROUTING:
+        return "PACKET_STAGE_POSTROUTING";
+    default:
+        return "PACKET_STAGE_UNKNOWN";
+    }
+}
+
+struct packet_manager_runtime *packet_manager_runtime_new()
+{
+    struct packet_manager_runtime *pkt_mgr_rt = calloc(1, sizeof(struct packet_manager_runtime));
+    if (pkt_mgr_rt == NULL)
+    {
+        PACKET_MANAGER_LOG_ERROR("failed to allocate memory for packet_manager_runtime");
+        return NULL;
+    }
+
+    for (int i = 0; i < PACKET_QUEUE_MAX; i++)
+    {
+        TAILQ_INIT(&pkt_mgr_rt->queue[i]);
+    }
+
+    return pkt_mgr_rt;
+}
+
+void packet_manager_runtime_free(struct packet_manager_runtime *pkt_mgr_rt)
+{
+    if (pkt_mgr_rt)
+    {
+        for (int i = 0; i < PACKET_QUEUE_MAX; i++)
+        {
+            struct packet *pkt = NULL;
+            while ((pkt = TAILQ_FIRST(&pkt_mgr_rt->queue[i])))
+            {
+                TAILQ_REMOVE(&pkt_mgr_rt->queue[i], pkt, stage_tqe);
+
+                // TODO: free packet and free mbuff
+                packet_free(pkt);
+            }
+        }
+    }
+    free(pkt_mgr_rt);
+    pkt_mgr_rt = NULL;
+}
+
+void packet_manager_runtime_init(struct packet_manager_runtime *pkt_mgr_rt, struct mq_runtime *mq_rt)
+{
+    pkt_mgr_rt->mq = mq_rt;
+}
+
+void packet_manager_runtime_ingress(struct packet_manager_runtime *pkt_mgr_rt, struct packet *pkt)
+{
+    pkt_mgr_rt->stat.total.pkts_ingress++;
+    pkt_mgr_rt->stat.queue[PACKET_STAGE_PREROUTING].pkts_in++;
+    TAILQ_INSERT_TAIL(&pkt_mgr_rt->queue[PACKET_STAGE_PREROUTING], pkt, stage_tqe);
+}
+
+struct packet *packet_manager_runtime_egress(struct packet_manager_runtime *pkt_mgr_rt)
+{
+    struct packet *pkt = TAILQ_FIRST(&pkt_mgr_rt->queue[PACKET_STAGE_MAX]);
+    if (pkt)
+    {
+        pkt_mgr_rt->stat.total.pkts_egress++;
+        pkt_mgr_rt->stat.queue[PACKET_STAGE_MAX].pkts_out++;
+        TAILQ_REMOVE(&pkt_mgr_rt->queue[PACKET_STAGE_MAX], pkt, stage_tqe);
+    }
+    return pkt;
+}
+
+void packet_manager_runtime_dispatch(struct packet_manager_runtime *pkt_mgr_rt)
+{
+    for (int i = 0; i < PACKET_STAGE_MAX; i++)
+    {
+        pkt_mgr_rt->stage = i;
+
+        struct packet *pkt = NULL;
+        while ((pkt = TAILQ_FIRST(&pkt_mgr_rt->queue[pkt_mgr_rt->stage])))
+        {
+            packet_set_claim(pkt, false);
+            pkt_mgr_rt->claimed_cb = NULL;
+            pkt_mgr_rt->cb_args = NULL;
+
+            TAILQ_REMOVE(&pkt_mgr_rt->queue[pkt_mgr_rt->stage], pkt, stage_tqe);
+            pkt_mgr_rt->stat.queue[pkt_mgr_rt->stage].pkts_out++;
+
+            mq_runtime_publish_message(pkt_mgr_rt->mq, pkt_mgr_rt->stage, pkt);
+            mq_runtime_dispatch(pkt_mgr_rt->mq);
+
+            if (packet_is_claim(pkt))
+            {
+                if (pkt_mgr_rt->claimed_cb)
+                {
+                    pkt_mgr_rt->claimed_cb(pkt, pkt_mgr_rt->cb_args);
+                }
+                packet_set_claim(pkt, false);
+                continue;
+            }
+
+            TAILQ_INSERT_TAIL(&pkt_mgr_rt->queue[pkt_mgr_rt->stage + 1], pkt, stage_tqe);
+            pkt_mgr_rt->stat.queue[pkt_mgr_rt->stage + 1].pkts_in++;
+        }
+    }
+    pkt_mgr_rt->stage = -1;
+}
+
+int packet_manager_runtime_claim_packet(struct packet_manager_runtime *pkt_mgr_rt, struct packet *pkt, on_packet_claimed_callback cb, void *args)
+{
+    if (packet_is_claim(pkt))
+    {
+        PACKET_MANAGER_LOG_ERROR("packet is already claimed, cannot claim again");
+        return -1;
+    }
+    else
+    {
+        pkt_mgr_rt->claimed_cb = cb;
+        pkt_mgr_rt->cb_args = args;
+        packet_set_claim(pkt, true);
+        pkt_mgr_rt->stat.queue[pkt_mgr_rt->stage].pkts_claim++;
+        return 0;
+    }
+}
+
+void packet_manager_runtime_schedule_packet(struct packet_manager_runtime *pkt_mgr_rt, struct packet *pkt, enum packet_stage stage)
+{
+    if (stage >= PACKET_STAGE_MAX)
+    {
+        PACKET_MANAGER_LOG_ERROR("invalid stage %d", stage);
+        assert(0);
+        return;
+    }
+
+    pkt_mgr_rt->stat.queue[stage].pkts_schedule++;
+    pkt_mgr_rt->stat.queue[stage].pkts_in++;
+    TAILQ_INSERT_TAIL(&pkt_mgr_rt->queue[stage], pkt, stage_tqe);
+}
+
+struct packet_manager_stat *packet_manager_runtime_get_stat(struct packet_manager_runtime *pkt_mgr_rt)
+{
+    return &pkt_mgr_rt->stat;
+}
+
+void packet_manager_runtime_print_stat(struct packet_manager_runtime *pkt_mgr_rt)
+{
+    PACKET_MANAGER_LOG_INFO("runtime: %p, pkts_ingress: %lu, pkts_egress: %lu",
+                            pkt_mgr_rt, pkt_mgr_rt->stat.total.pkts_ingress, pkt_mgr_rt->stat.total.pkts_egress);
+    for (int i = 0; i < PACKET_QUEUE_MAX; i++)
+    {
+        PACKET_MANAGER_LOG_INFO("runtime: %p, %-24s stat => pkts_in: %lu, pkts_out: %lu, pkts_claim: %lu, pkts_schedule: %lu",
+                                pkt_mgr_rt,
+                                packet_stage_to_str(i),
+                                pkt_mgr_rt->stat.queue[i].pkts_in,
+                                pkt_mgr_rt->stat.queue[i].pkts_out,
+                                pkt_mgr_rt->stat.queue[i].pkts_claim,
+                                pkt_mgr_rt->stat.queue[i].pkts_schedule);
+    }
+}
diff --git a/infra/packet_manager/packet_manager_runtime.h b/infra/packet_manager/packet_manager_runtime.h
new file mode 100644
index 0000000..35a7307
--- /dev/null
+++ b/infra/packet_manager/packet_manager_runtime.h
@@ -0,0 +1,69 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <sys/queue.h>
+
+#include "log_internal.h"
+#include "stellar/mq.h"
+#include "stellar/packet_manager.h"
+
+#define PACKET_MANAGER_LOG_ERROR(format, ...) STELLAR_LOG_ERROR(__thread_local_logger, "packet manager", format, ##__VA_ARGS__)
+#define PACKET_MANAGER_LOG_DEBUG(format, ...) STELLAR_LOG_DEBUG(__thread_local_logger, "packet manager", format, ##__VA_ARGS__)
+#define PACKET_MANAGER_LOG_FATAL(format, ...) STELLAR_LOG_FATAL(__thread_local_logger, "packet manager", format, ##__VA_ARGS__)
+#define PACKET_MANAGER_LOG_INFO(format, ...) STELLAR_LOG_INFO(__thread_local_logger, "packet manager", format, ##__VA_ARGS__)
+
+#define PACKET_QUEUE_MAX (PACKET_STAGE_MAX + 1)
+
+TAILQ_HEAD(packet_queue, packet);
+
+struct packet_manager_stat
+{
+    struct
+    {
+        uint64_t pkts_ingress;
+        uint64_t pkts_egress;
+    } total;
+    struct
+    {
+        uint64_t pkts_in;  // include the packets that are scheduled
+        uint64_t pkts_out; // include the packets that are claimed
+        uint64_t pkts_claim;
+        uint64_t pkts_schedule;
+    } queue[PACKET_QUEUE_MAX]; // the last queue is for sending packets
+};
+
+struct packet_manager_runtime
+{
+    enum packet_stage stage;
+    struct packet_queue queue[PACKET_QUEUE_MAX];
+
+    void *cb_args;
+    on_packet_claimed_callback *claimed_cb;
+
+    struct mq_runtime *mq;
+    struct packet_manager_stat stat;
+};
+
+struct packet_manager_runtime *packet_manager_runtime_new();
+void packet_manager_runtime_free(struct packet_manager_runtime *pkt_mgr_rt);
+
+void packet_manager_runtime_init(struct packet_manager_runtime *pkt_mgr_rt, struct mq_runtime *mq_rt);
+void packet_manager_runtime_ingress(struct packet_manager_runtime *pkt_mgr_rt, struct packet *pkt);
+struct packet *packet_manager_runtime_egress(struct packet_manager_runtime *pkt_mgr_rt);
+void packet_manager_runtime_dispatch(struct packet_manager_runtime *pkt_mgr_rt);
+
+int packet_manager_runtime_claim_packet(struct packet_manager_runtime *pkt_mgr_rt, struct packet *pkt, on_packet_claimed_callback cb, void *args);
+void packet_manager_runtime_schedule_packet(struct packet_manager_runtime *pkt_mgr_rt, struct packet *pkt, enum packet_stage stage);
+
+struct packet_manager_stat *packet_manager_runtime_get_stat(struct packet_manager_runtime *pkt_mgr_rt);
+void packet_manager_runtime_print_stat(struct packet_manager_runtime *pkt_mgr_rt);
+
+const char *packet_stage_to_str(enum packet_stage stage);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/infra/packet_manager/test/gtest_packet_manager.cpp b/infra/packet_manager/test/gtest_packet_manager.cpp
index a3674c6..7f97748 100644
--- a/infra/packet_manager/test/gtest_packet_manager.cpp
+++ b/infra/packet_manager/test/gtest_packet_manager.cpp
@@ -1,8 +1,8 @@
 #include <gtest/gtest.h>
 
-#include "stellar/mq.h"
 #include "packet_parser.h"
 #include "packet_internal.h"
+#include "packet_manager_runtime.h"
 #include "packet_manager_internal.h"
 
 /******************************************************************************
diff --git a/infra/session_manager/session_manager.c b/infra/session_manager/session_manager.c
index d150dc9..a2b2fd7 100644
--- a/infra/session_manager/session_manager.c
+++ b/infra/session_manager/session_manager.c
@@ -305,6 +305,7 @@ void session_manager_free(struct session_manager *sess_mgr)
                 clean_session(sess_mgr_rt, UINT64_MAX);
             }
 
+            SESSION_MANAGER_LOG_INFO("runtime: %p, idx: %d, will be cleaned", sess_mgr_rt, i);
             session_manager_runtime_print_stat(sess_mgr_rt);
             session_manager_runtime_free(sess_mgr->runtime[i]);
         }
diff --git a/infra/session_manager/session_manager_runtime.c b/infra/session_manager/session_manager_runtime.c
index 14a4ed3..f89176c 100644
--- a/infra/session_manager/session_manager_runtime.c
+++ b/infra/session_manager/session_manager_runtime.c
@@ -1292,22 +1292,22 @@ void session_manager_runtime_print_stat(struct session_manager_runtime *sess_mgr
      struct session_manager_stat *stat = &sess_mgr_rt->stat;
 
      // TCP session
-     SESSION_MANAGER_LOG_INFO("runtime[%p] => TCP session: history=%lu, used=%lu, opening=%lu, active=%lu, closing=%lu, discard=%lu, closed=%lu",
+     SESSION_MANAGER_LOG_INFO("runtime: %p, TCP session stat => history: %lu, used: %lu, opening: %lu, active: %lu, closing: %lu, discard: %lu, closed: %lu",
                               sess_mgr_rt, stat->history_tcp_sessions, stat->tcp_sess_used, stat->tcp_sess_opening, stat->tcp_sess_active,
                               stat->tcp_sess_closing, stat->tcp_sess_discard, stat->tcp_sess_closed);
      // UDP session
-     SESSION_MANAGER_LOG_INFO("runtime[%p] => UDP session: history=%lu, used=%lu, opening=%lu, active=%lu, closing=%lu, discard=%lu, closed=%lu",
+     SESSION_MANAGER_LOG_INFO("runtime: %p, UDP session stat => history: %lu, used: %lu, opening: %lu, active: %lu, closing: %lu, discard: %lu, closed: %lu",
                               sess_mgr_rt, stat->history_udp_sessions, stat->udp_sess_used, stat->udp_sess_opening, stat->udp_sess_active,
                               stat->udp_sess_closing, stat->udp_sess_discard, stat->udp_sess_closed);
      // evicted session
-     SESSION_MANAGER_LOG_INFO("runtime[%p] => evicted session: TCP=%lu, UDP=%lu", sess_mgr_rt, stat->tcp_sess_evicted, stat->udp_sess_evicted);
+     SESSION_MANAGER_LOG_INFO("runtime: %p, evicted session stat => TCP: %lu, UDP: %lu", sess_mgr_rt, stat->tcp_sess_evicted, stat->udp_sess_evicted);
      // Bypassed packet
-     SESSION_MANAGER_LOG_INFO("runtime[%p] => bypassed TCP packet: table_full=%lu, session_not_found=%lu, duplicated=%lu",
+     SESSION_MANAGER_LOG_INFO("runtime: %p, bypassed TCP packet stat => table_full: %lu, session_not_found: %lu, duplicated: %lu",
                               sess_mgr_rt, stat->tcp_pkts_bypass_table_full, stat->tcp_pkts_bypass_session_not_found, stat->tcp_pkts_bypass_duplicated);
-     SESSION_MANAGER_LOG_INFO("runtime[%p] => bypassed UDP packet: table_full=%lu, session_evicted=%lu, duplicated=%lu",
+     SESSION_MANAGER_LOG_INFO("runtime: %p, bypassed UDP packet stat => table_full: %lu, session_evicted: %lu, duplicated: %lu",
                               sess_mgr_rt, stat->udp_pkts_bypass_table_full, stat->udp_pkts_bypass_session_evicted, stat->udp_pkts_bypass_duplicated);
      // TCP segment
-     SESSION_MANAGER_LOG_INFO("runtime[%p] => TCP segment: input=%lu, consumed=%lu, timeout=%lu, retransmited=%lu, overlapped=%lu, omitted_too_many=%lu, inorder=%lu, reordered=%lu, buffered=%lu, freed=%lu",
+     SESSION_MANAGER_LOG_INFO("runtime: %p, TCP segment stat => input: %lu, consumed: %lu, timeout: %lu, retransmited: %lu, overlapped: %lu, omitted_too_many: %lu, inorder: %lu, reordered: %lu, buffered: %lu, freed: %lu",
                               sess_mgr_rt, stat->tcp_segs_input, stat->tcp_segs_consumed, stat->tcp_segs_timeout, stat->tcp_segs_retransmited,
                               stat->tcp_segs_overlapped, stat->tcp_segs_omitted_too_many, stat->tcp_segs_inorder, stat->tcp_segs_reordered,
                               stat->tcp_segs_buffered, stat->tcp_segs_freed);
@@ -1425,7 +1425,7 @@ uint64_t session_manager_runtime_scan(const struct session_manager_runtime *sess
           }
      }
 
-     SESSION_MANAGER_LOG_DEBUG("session scan: cursor=%lu, count=%lu, mached_sess_num=%lu", opts->cursor, opts->count, mached_sess_num);
+     SESSION_MANAGER_LOG_DEBUG("session scan => cursor: %lu, count: %lu, mached_sess_num: %lu", opts->cursor, opts->count, mached_sess_num);
      return mached_sess_num;
 }
 
diff --git a/infra/stellar_core.c b/infra/stellar_core.c
index 0d85a7e..a63a5bd 100644
--- a/infra/stellar_core.c
+++ b/infra/stellar_core.c
@@ -147,7 +147,6 @@ static int stellar_thread_run(struct stellar *st)
 
 static void stellar_thread_join(struct stellar *st)
 {
-    CORE_LOG_FATAL("waiting worker thread exit");
     for (uint16_t i = 0; i < st->thread_num; i++)
     {
         if (st->threads[i].is_runing == 0)
@@ -158,7 +157,6 @@ static void stellar_thread_join(struct stellar *st)
         struct stellar_thread *thread = &st->threads[i];
         pthread_join(thread->tid, NULL);
     }
-    CORE_LOG_FATAL("all worker thread exited");
 }
 
 struct stellar *stellar_new(const char *toml_file)
@@ -241,7 +239,6 @@ void stellar_run(struct stellar *st)
         if (packet_io_isbreak(st->pkt_io))
         {
             ATOMIC_SET(&st->need_exit, 1);
-            CORE_LOG_FATAL("notify worker thread to exit");
             break;
         }
     }
diff --git a/test/session_debugger/session_debugger.c b/test/session_debugger/session_debugger.c
index a41610c..b54d739 100644
--- a/test/session_debugger/session_debugger.c
+++ b/test/session_debugger/session_debugger.c
@@ -136,7 +136,7 @@ static void session_debugger_exdata_free(struct session_debugger_exdata *exdata)
 
 static void session_debugger_exdata_free_callback(int idx, void *ex_ptr, void *arg)
 {
-    struct session_debugger *dbg = (struct session_debugger *)arg;
+    __attribute__((unused)) struct session_debugger *dbg = (struct session_debugger *)arg;
     assert(idx == dbg->sess_exdata_idx);
 
     session_debugger_exdata_free((struct session_debugger_exdata *)ex_ptr);
@@ -244,7 +244,7 @@ static struct session_debugger *session_debugger_new(struct session_manager *ses
         goto error_out;
     }
 
-    dbg->sess_exdata_idx = session_manager_new_session_exdata_index(dbg->sess_mgr, "DEBUG_MODULE_SESS_EXDATA", session_debugger_exdata_free_callback, dbg);
+    dbg->sess_exdata_idx = session_manager_new_session_exdata_index(dbg->sess_mgr, "session_debugger_exdata", session_debugger_exdata_free_callback, dbg);
     if (dbg->sess_exdata_idx == -1)
     {
         session_debugger_log(STDERR_FILENO, "new session exdata index failed\n");