diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index 8d6e82da9..cf3e0217e 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -49,7 +49,7 @@ daemon              on;
 # if on, use gmtime() instead, which use UTC time.
 # default: off
 utc_time            off;
-# config for the pithy print,
+# config for the pithy print in ms,
 # which always print constant message specified by interval,
 # whatever the clients in concurrency.
 # default: 10000
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index 9a81a403b..9d0e9a51d 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -4055,16 +4055,16 @@ string SrsConfig::get_pid_file()
     return conf->arg0();
 }
 
-int SrsConfig::get_pithy_print_ms()
+srs_utime_t SrsConfig::get_pithy_print()
 {
-    static int DEFAULT = 10000;
+    static srs_utime_t DEFAULT = 10 * SRS_UTIME_SECONDS;
     
     SrsConfDirective* conf = root->get("pithy_print_ms");
     if (!conf || conf->arg0().empty()) {
         return DEFAULT;
     }
     
-    return ::atoi(conf->arg0().c_str());
+    return (srs_utime_t)(::atoi(conf->arg0().c_str()) * SRS_UTIME_MILLISECONDS);
 }
 
 bool SrsConfig::get_utc_time()
diff --git a/trunk/src/app/srs_app_config.hpp b/trunk/src/app/srs_app_config.hpp
index bf882efdb..5e825f31b 100644
--- a/trunk/src/app/srs_app_config.hpp
+++ b/trunk/src/app/srs_app_config.hpp
@@ -604,11 +604,11 @@ public:
      */
     virtual std::string get_pid_file();
     /**
-     * get pithy print pulse ms,
+     * get pithy print pulse in srs_utime_t,
      * for example, all rtmp connections only print one message
      * every this interval in ms.
      */
-    virtual int get_pithy_print_ms();
+    virtual srs_utime_t get_pithy_print();
     /**
      * whether use utc-time to format the time.
      */
diff --git a/trunk/src/app/srs_app_pithy_print.cpp b/trunk/src/app/srs_app_pithy_print.cpp
index 34c81b51e..1bbd18d79 100644
--- a/trunk/src/app/srs_app_pithy_print.cpp
+++ b/trunk/src/app/srs_app_pithy_print.cpp
@@ -49,17 +49,17 @@ SrsStageInfo::~SrsStageInfo()
 
 void SrsStageInfo::update_print_time()
 {
-    pithy_print_time_ms = _srs_config->get_pithy_print_ms();
+    interval = _srs_config->get_pithy_print();
 }
 
-void SrsStageInfo::elapse(int64_t diff)
+void SrsStageInfo::elapse(srs_utime_t diff)
 {
     age += diff;
 }
 
 bool SrsStageInfo::can_print()
 {
-    int64_t can_print_age = nb_clients * pithy_print_time_ms;
+    srs_utime_t can_print_age = nb_clients * interval;
     
     bool can_print = age >= can_print_age;
     if (can_print) {
@@ -211,7 +211,7 @@ void SrsPithyPrint::elapse()
     int64_t diff = srs_get_system_time_ms() - previous_tick;
     diff = srs_max(0, diff);
     
-    stage->elapse(diff);
+    stage->elapse(diff * SRS_UTIME_MILLISECONDS);
     _age += diff;
     previous_tick = srs_get_system_time_ms();
 }
diff --git a/trunk/src/app/srs_app_pithy_print.hpp b/trunk/src/app/srs_app_pithy_print.hpp
index 26aecd245..9bfa811ab 100644
--- a/trunk/src/app/srs_app_pithy_print.hpp
+++ b/trunk/src/app/srs_app_pithy_print.hpp
@@ -27,6 +27,7 @@
 #include <srs_core.hpp>
 
 #include <srs_app_reload.hpp>
+#include <srs_service_time.hpp>
 
 /**
  * the stage info to calc the age.
@@ -35,16 +36,16 @@ class SrsStageInfo : public ISrsReloadHandler
 {
 public:
     int stage_id;
-    int pithy_print_time_ms;
+    srs_utime_t interval;
     int nb_clients;
 public:
-    int64_t age;
+    srs_utime_t age;
 public:
     SrsStageInfo(int _stage_id);
     virtual ~SrsStageInfo();
     virtual void update_print_time();
 public:
-    virtual void elapse(int64_t diff);
+    virtual void elapse(srs_utime_t diff);
     virtual bool can_print();
 public:
     virtual srs_error_t on_reload_pithy_print();
diff --git a/trunk/src/utest/srs_utest_config.cpp b/trunk/src/utest/srs_utest_config.cpp
index 3fc336af4..180728f9f 100644
--- a/trunk/src/utest/srs_utest_config.cpp
+++ b/trunk/src/utest/srs_utest_config.cpp
@@ -1835,5 +1835,13 @@ VOID TEST(ConfigUnitTest, CheckDefaultValues)
 	    EXPECT_TRUE(ERROR_SUCCESS == conf.parse(_MIN_OK_CONF"heartbeat{interval 10;}"));
 	    EXPECT_EQ(10 * SRS_UTIME_SECONDS, conf.get_heartbeat_interval());
     }
+
+    if (true) {
+	    EXPECT_TRUE(ERROR_SUCCESS == conf.parse(_MIN_OK_CONF));
+	    EXPECT_EQ(10 * SRS_UTIME_SECONDS, conf.get_pithy_print());
+
+	    EXPECT_TRUE(ERROR_SUCCESS == conf.parse(_MIN_OK_CONF"pithy_print_ms 20000;"));
+	    EXPECT_EQ(20 * SRS_UTIME_SECONDS, conf.get_pithy_print());
+    }
 }