diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index 4e4998f00..d91682aec 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -373,118 +373,6 @@ vhost publish.srs.com {
     }
 }
 
-# the MR(merged-read) setting for publisher.
-# the MW(merged-write) settings for player.
-vhost mrw.srs.com {
-    # @see scope.vhost.srs.com
-    min_latency     off;
-    
-    # set the MW(merged-write) latency in ms. 
-    # SRS always set mw on, so we just set the latency value.
-    # the latency of stream >= mw_latency + mr_latency
-    # the value recomment is [300, 1800]
-    # default: 350
-    mw_latency      350;
-    
-    # @see publish.srs.com
-    publish {
-        mr          on;
-        mr_latenct  350;
-    }
-}
-
-# the vhost for min delay, donot cache any stream.
-vhost min.delay.com {
-    # @see vhost mrw.srs.com for detail.
-    min_latency     on;
-    # @see scope.vhost.srs.com
-    mw_latency      100;
-    # whether cache the last gop.
-    # if on, cache the last gop and dispatch to client,
-    #   to enabled fast startup for client, client play immediately.
-    # if off, send the latest media data to client,
-    #   client need to wait for the next Iframe to decode and show the video.
-    # set to off if requires min delay;
-    # set to on if requires client fast startup.
-    # default: on
-    gop_cache       off;
-    # the max live queue length in seconds.
-    # if the messages in the queue exceed the max length, 
-    # drop the old whole gop.
-    # default: 30
-    queue_length    10;
-    # @see scope.vhost.srs.com
-    tcp_nodelay     on;
-    
-    # @see publish.srs.com
-    publish {
-        mr          off;
-    }
-}
-
-# the vhost to control the stream delivery feature
-vhost stream.control.com {
-    # @see vhost mrw.srs.com for detail.
-    min_latency     on;
-    mw_latency      100;
-    # @see vhost min.delay.com
-    queue_length    10;
-    tcp_nodelay     on;
-    # the minimal packets send interval in ms,
-    # used to control the ndiff of stream by srs_rtmp_dump,
-    # for example, some device can only accept some stream which
-    # delivery packets in constant interval(not cbr).
-    # @remark 0 to disable the minimal interval.
-    # @remark >0 to make the srs to send message one by one.
-    # @remark user can get the right packets interval in ms by srs_rtmp_dump.
-    # default: 0
-    send_min_interval       10.0;
-    # whether reduce the sequence header,
-    # for some client which cannot got duplicated sequence header,
-    # while the sequence header is not changed yet.
-    # default: off
-    reduce_sequence_header  on;
-    
-    # @see publish.srs.com
-    publish {
-        mr          off;
-        firstpkt_timeout    20000;
-        normal_timeout      7000;
-    }
-}
-
-# the vhost which forward publish streams.
-vhost same.vhost.forward.srs.com {
-    # forward all publish stream to the specified server.
-    # this used to split/forward the current stream for cluster active-standby,
-    # active-active for cdn to build high available fault tolerance system.
-    # format: {ip}:{port} {ip_N}:{port_N}
-    forward         127.0.0.1:1936 127.0.0.1:1937;
-}
-
-# the vhost for exec, fork process when publish stream.
-vhost exec.srs.com {
-    # the exec used to fork process when got some event.
-    exec {
-        # whether enable the exec.
-        # default: off.
-        enabled     off;
-        # when publish stream, exec the process with variables:
-        #       [vhost] the input stream vhost.
-        #       [port] the intput stream port.
-        #       [app] the input stream app.
-        #       [stream] the input stream name.
-        #       [engine] the tanscode engine name.
-        # other variables for exec only:
-        #       [url] the rtmp url which trigger the publish.
-        #       [tcUrl] the client request tcUrl.
-        #       [swfUrl] the client request swfUrl.
-        #       [pageUrl] the client request pageUrl.
-        # @remark empty to ignore this exec.
-        publish     ./objs/ffmpeg/bin/ffmpeg -f flv -i [url] -c copy -y ./[stream].flv;
-    }
-}
-
 # the play specified configs
 vhost play.srs.com {
     # for play client, both RTMP and other stream clients,
@@ -527,6 +415,13 @@ vhost play.srs.com {
         # always ignore the onMetaData if atc_auto is off.
         # default: off
         atc_auto        off;
+    
+        # set the MW(merged-write) latency in ms. 
+        # SRS always set mw on, so we just set the latency value.
+        # the latency of stream >= mw_latency + mr_latency
+        # the value recomment is [300, 1800]
+        # default: 350
+        mw_latency      350;
     }
 }
 
@@ -546,6 +441,126 @@ vhost atc.srs.com {
     atc_auto        on;
 }
 
+# the MR(merged-read) setting for publisher.
+# the MW(merged-write) settings for player.
+vhost mrw.srs.com {
+    # @see scope.vhost.srs.com
+    min_latency     off;
+    
+    # @see play.srs.com
+    play {
+        mw_latency      350;
+    }
+    
+    # @see publish.srs.com
+    publish {
+        mr          on;
+        mr_latenct  350;
+    }
+}
+
+# the vhost for min delay, donot cache any stream.
+vhost min.delay.com {
+    # @see scope.vhost.srs.com
+    min_latency     on;
+    # @see scope.vhost.srs.com
+    tcp_nodelay     on;
+    
+    # whether cache the last gop.
+    # if on, cache the last gop and dispatch to client,
+    #   to enabled fast startup for client, client play immediately.
+    # if off, send the latest media data to client,
+    #   client need to wait for the next Iframe to decode and show the video.
+    # set to off if requires min delay;
+    # set to on if requires client fast startup.
+    # default: on
+    gop_cache       off;
+    # the max live queue length in seconds.
+    # if the messages in the queue exceed the max length, 
+    # drop the old whole gop.
+    # default: 30
+    queue_length    10;
+    
+    # @see play.srs.com
+    play {
+        mw_latency      100;
+    }
+    
+    # @see publish.srs.com
+    publish {
+        mr          off;
+    }
+}
+
+# the vhost to control the stream delivery feature
+vhost stream.control.com {
+    # @see scope.vhost.srs.com
+    min_latency     on;
+    # @see scope.vhost.srs.com
+    tcp_nodelay     on;
+    
+    # @see vhost min.delay.com
+    queue_length    10;
+    # the minimal packets send interval in ms,
+    # used to control the ndiff of stream by srs_rtmp_dump,
+    # for example, some device can only accept some stream which
+    # delivery packets in constant interval(not cbr).
+    # @remark 0 to disable the minimal interval.
+    # @remark >0 to make the srs to send message one by one.
+    # @remark user can get the right packets interval in ms by srs_rtmp_dump.
+    # default: 0
+    send_min_interval       10.0;
+    # whether reduce the sequence header,
+    # for some client which cannot got duplicated sequence header,
+    # while the sequence header is not changed yet.
+    # default: off
+    reduce_sequence_header  on;
+    
+    # @see play.srs.com
+    play {
+        mw_latency      100;
+    }
+    
+    # @see publish.srs.com
+    publish {
+        mr          off;
+        firstpkt_timeout    20000;
+        normal_timeout      7000;
+    }
+}
+
+# the vhost which forward publish streams.
+vhost same.vhost.forward.srs.com {
+    # forward all publish stream to the specified server.
+    # this used to split/forward the current stream for cluster active-standby,
+    # active-active for cdn to build high available fault tolerance system.
+    # format: {ip}:{port} {ip_N}:{port_N}
+    forward         127.0.0.1:1936 127.0.0.1:1937;
+}
+
+# the vhost for exec, fork process when publish stream.
+vhost exec.srs.com {
+    # the exec used to fork process when got some event.
+    exec {
+        # whether enable the exec.
+        # default: off.
+        enabled     off;
+        # when publish stream, exec the process with variables:
+        #       [vhost] the input stream vhost.
+        #       [port] the intput stream port.
+        #       [app] the input stream app.
+        #       [stream] the input stream name.
+        #       [engine] the tanscode engine name.
+        # other variables for exec only:
+        #       [url] the rtmp url which trigger the publish.
+        #       [tcUrl] the client request tcUrl.
+        #       [swfUrl] the client request swfUrl.
+        #       [pageUrl] the client request pageUrl.
+        # @remark empty to ignore this exec.
+        publish     ./objs/ffmpeg/bin/ffmpeg -f flv -i [url] -c copy -y ./[stream].flv;
+    }
+}
+
 # the security to allow or deny clients.
 vhost security.srs.com {
     # security for host to allow or deny clients.
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index 0b7c697c8..3d15d0d68 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -841,18 +841,6 @@ int SrsConfig::reload_vhost(SrsConfDirective* old_root)
                 srs_trace("vhost %s reload publish success.", vhost.c_str());
             }
             
-            // mw, only one per vhost
-            if (!srs_directive_equals(new_vhost->get("mw_latency"), old_vhost->get("mw_latency"))) {
-                for (it = subscribes.begin(); it != subscribes.end(); ++it) {
-                    ISrsReloadHandler* subscribe = *it;
-                    if ((ret = subscribe->on_reload_vhost_mw(vhost)) != ERROR_SUCCESS) {
-                        srs_error("vhost %s notify subscribes mw failed. ret=%d", vhost.c_str(), ret);
-                        return ret;
-                    }
-                }
-                srs_trace("vhost %s reload mw success.", vhost.c_str());
-            }
-            
             // smi(send_min_interval), only one per vhost
             if (!srs_directive_equals(new_vhost->get("send_min_interval"), old_vhost->get("send_min_interval"))) {
                 for (it = subscribes.begin(); it != subscribes.end(); ++it) {
@@ -1735,11 +1723,6 @@ int SrsConfig::vhost_to_json(SrsConfDirective* vhost, SrsAmf0Object* obj)
         obj->set("debug_srs_upnode", dir->dumps_arg0_to_boolean());
     }
     
-    // mrw
-    if ((dir = vhost->get("mw_latency")) != NULL) {
-        obj->set("mw_latency", dir->dumps_arg0_to_number());
-    }
-    
     // realtime latency
     if ((dir = vhost->get("gop_cache")) != NULL) {
         obj->set("gop_cache", dir->dumps_arg0_to_boolean());
@@ -1772,6 +1755,8 @@ int SrsConfig::vhost_to_json(SrsConfDirective* vhost, SrsAmf0Object* obj)
                 play->set("atc", sdir->dumps_arg0_to_boolean());
             } else if (sdir->name == "atc_auto") {
                 play->set("atc_auto", sdir->dumps_arg0_to_boolean());
+            } else if (sdir->name == "mw_latency") {
+                play->set("mw_latency", sdir->dumps_arg0_to_number());
             }
         }
     }
@@ -2654,7 +2639,7 @@ int SrsConfig::check_config()
                 && n != "dvr" && n != "ingest" && n != "hls" && n != "http_hooks"
                 && n != "gop_cache" && n != "queue_length"
                 && n != "refer" && n != "forward" && n != "transcode" && n != "bandcheck"
-                && n != "debug_srs_upnode" && n != "play" && n != "publish" && n != "mw_latency"
+                && n != "debug_srs_upnode" && n != "play" && n != "publish"
                 && n != "send_min_interval" && n != "reduce_sequence_header"
                 && n != "security" && n != "http_remux"
                 && n != "http_static" && n != "hds" && n != "exec"
@@ -2696,7 +2681,7 @@ int SrsConfig::check_config()
             } else if (n == "play") {
                 for (int j = 0; j < (int)conf->directives.size(); j++) {
                     string m = conf->at(j)->name.c_str();
-                    if (m != "time_jitter" && m != "mix_correct" && m != "atc" && m != "atc_auto" ) {
+                    if (m != "time_jitter" && m != "mix_correct" && m != "atc" && m != "atc_auto" && m != "mw_latency") {
                         ret = ERROR_SYSTEM_CONFIG_INVALID;
                         srs_error("unsupported vhost play directive %s, ret=%d", m.c_str(), ret);
                         return ret;
@@ -3482,6 +3467,11 @@ int SrsConfig::get_mw_sleep_ms(string vhost)
     if (!conf) {
         return SRS_PERF_MW_SLEEP;
     }
+    
+    conf = conf->get("play");
+    if (!conf || conf->arg0().empty()) {
+        return SRS_PERF_MW_SLEEP;
+    }
 
     conf = conf->get("mw_latency");
     if (!conf || conf->arg0().empty()) {
@@ -5789,12 +5779,12 @@ int srs_config_transform_vhost(SrsConfDirective* root)
             }
             
             // SRS3.0, change the folowing like a shadow:
-            //      time_jitter, mix_correct, atc, atc_auto
+            //      time_jitter, mix_correct, atc, atc_auto, mw_latency
             //  SRS1/2:
             //      vhost { shadow; }
             //  SRS3+:
             //      vhost { play { shadow; } }
-            if (n == "time_jitter" || n == "mix_correct" || n == "atc" || n == "atc_auto") {
+            if (n == "time_jitter" || n == "mix_correct" || n == "atc" || n == "atc_auto" || n == "mw_latency") {
                 it = dir->directives.erase(it);
                 
                 SrsConfDirective* play = dir->get_or_create("play");
diff --git a/trunk/src/app/srs_app_reload.cpp b/trunk/src/app/srs_app_reload.cpp
index 79714646d..271c972b1 100644
--- a/trunk/src/app/srs_app_reload.cpp
+++ b/trunk/src/app/srs_app_reload.cpp
@@ -165,11 +165,6 @@ int ISrsReloadHandler::on_reload_vhost_publish(string /*vhost*/)
     return ERROR_SUCCESS;
 }
 
-int ISrsReloadHandler::on_reload_vhost_mw(string /*vhost*/)
-{
-    return ERROR_SUCCESS;
-}
-
 int ISrsReloadHandler::on_reload_vhost_smi(string /*vhost*/)
 {
     return ERROR_SUCCESS;
diff --git a/trunk/src/app/srs_app_reload.hpp b/trunk/src/app/srs_app_reload.hpp
index e067ec187..cd7f74f01 100644
--- a/trunk/src/app/srs_app_reload.hpp
+++ b/trunk/src/app/srs_app_reload.hpp
@@ -72,7 +72,6 @@ public:
     virtual int on_reload_vhost_hds(std::string vhost);
     virtual int on_reload_vhost_dvr(std::string vhost);
     virtual int on_reload_vhost_publish(std::string vhost);
-    virtual int on_reload_vhost_mw(std::string vhost);
     virtual int on_reload_vhost_smi(std::string vhost);
     virtual int on_reload_vhost_tcp_nodelay(std::string vhost);
     virtual int on_reload_vhost_realtime(std::string vhost);
diff --git a/trunk/src/app/srs_app_rtmp_conn.cpp b/trunk/src/app/srs_app_rtmp_conn.cpp
index ecf027893..f4f8996b4 100755
--- a/trunk/src/app/srs_app_rtmp_conn.cpp
+++ b/trunk/src/app/srs_app_rtmp_conn.cpp
@@ -231,18 +231,13 @@ int SrsRtmpConn::on_reload_vhost_removed(string vhost)
     return ret;
 }
 
-int SrsRtmpConn::on_reload_vhost_mw(string vhost)
+int SrsRtmpConn::on_reload_vhost_play(string vhost)
 {
     int ret = ERROR_SUCCESS;
     
     if (req->vhost != vhost) {
         return ret;
     }
-    
-    int sleep_ms = _srs_config->get_mw_sleep_ms(req->vhost);
-    
-    // when mw_sleep changed, resize the socket send buffer.
-    change_mw_sleep(sleep_ms);
 
     return ret;
 }
diff --git a/trunk/src/app/srs_app_rtmp_conn.hpp b/trunk/src/app/srs_app_rtmp_conn.hpp
index f44b74248..073125ffe 100755
--- a/trunk/src/app/srs_app_rtmp_conn.hpp
+++ b/trunk/src/app/srs_app_rtmp_conn.hpp
@@ -103,7 +103,7 @@ protected:
 // interface ISrsReloadHandler
 public:
     virtual int on_reload_vhost_removed(std::string vhost);
-    virtual int on_reload_vhost_mw(std::string vhost);
+    virtual int on_reload_vhost_play(std::string vhost);
     virtual int on_reload_vhost_smi(std::string vhost);
     virtual int on_reload_vhost_tcp_nodelay(std::string vhost);
     virtual int on_reload_vhost_realtime(std::string vhost);