diff --git a/cmd/agent/main.go b/cmd/agent/main.go
index 9424ed6..486ee84 100644
--- a/cmd/agent/main.go
+++ b/cmd/agent/main.go
@@ -267,12 +267,14 @@ func doTask(task *pb.Task) {
 func reportState() {
 	var lastReportHostInfo time.Time
 	var err error
+	var now time.Time
 	defer println("reportState exit", time.Now(), "=>", err)
 	for {
+		now = time.Now()
 		if client != nil {
 			monitor.TrackNetworkSpeed()
 			timeOutCtx, cancel := context.WithTimeout(context.Background(), networkTimeOut)
-			_, err = client.ReportSystemState(timeOutCtx, monitor.GetState(dao.ReportDelay).PB())
+			_, err = client.ReportSystemState(timeOutCtx, monitor.GetState().PB())
 			cancel()
 			if err != nil {
 				println("reportState error", err)
@@ -283,6 +285,7 @@ func reportState() {
 				client.ReportSystemInfo(context.Background(), monitor.GetHost().PB())
 			}
 		}
+		time.Sleep(time.Until(now.Add(time.Second)))
 	}
 }
 
diff --git a/cmd/agent/monitor/monitor.go b/cmd/agent/monitor/monitor.go
index 3d4dc88..74832e0 100644
--- a/cmd/agent/monitor/monitor.go
+++ b/cmd/agent/monitor/monitor.go
@@ -63,12 +63,12 @@ func GetHost() *model.Host {
 	}
 }
 
-func GetState(delay int64) *model.HostState {
+func GetState() *model.HostState {
 	hi, _ := host.Info()
 	mv, _ := mem.VirtualMemory()
 	ms, _ := mem.SwapMemory()
 	var cpuPercent float64
-	cp, err := cpu.Percent(time.Second*time.Duration(delay), false)
+	cp, err := cpu.Percent(0, false)
 	if err == nil {
 		cpuPercent = cp[0]
 	}
diff --git a/model/alertrule.go b/model/alertrule.go
index 61e0919..b752df6 100644
--- a/model/alertrule.go
+++ b/model/alertrule.go
@@ -41,7 +41,7 @@ func (r *AlertRule) Check(points [][]interface{}) (int, bool) {
 	for i := 0; i < len(r.Rules); i++ {
 		total := 0.0
 		fail := 0.0
-		num := int(r.Rules[i].Duration / 2) // SnapshotDelay
+		num := int(r.Rules[i].Duration)
 		if num > max {
 			max = num
 		}
diff --git a/resource/static/main.js b/resource/static/main.js
index 356142c..6f286b6 100644
--- a/resource/static/main.js
+++ b/resource/static/main.js
@@ -1,7 +1,10 @@
 function readableBytes(bytes) {
+  if (!bytes) {
+    return '0B'
+  }
   var i = Math.floor(Math.log(bytes) / Math.log(1024)),
     sizes = ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
-  return (bytes / Math.pow(1024, i)).toFixed(0) + " " + sizes[i];
+  return parseFloat((bytes / Math.pow(1024, i)).toFixed(2)) + sizes[i];
 }
 
 const confirmBtn = $(".mini.confirm.modal .positive.button");
diff --git a/resource/template/common/footer.html b/resource/template/common/footer.html
index c91610e..4376a45 100644
--- a/resource/template/common/footer.html
+++ b/resource/template/common/footer.html
@@ -9,7 +9,7 @@
 <script src="https://cdn.jsdelivr.net/npm/semantic-ui@2.4.1/dist/semantic.min.js"></script>
 <script src="/static/semantic-ui-alerts.min.js"></script>
 <script src="https://cdn.jsdelivr.net/npm/vue@2.6.12/dist/vue.min.js"></script>
-<script src="/static/main.js?v202106212144"></script>
+<script src="/static/main.js?v202106302144"></script>
 </body>
 
 </html>
diff --git a/resource/template/theme-hotaru/home.html b/resource/template/theme-hotaru/home.html
index be5f9d4..133fa04 100644
--- a/resource/template/theme-hotaru/home.html
+++ b/resource/template/theme-hotaru/home.html
@@ -69,9 +69,9 @@
                         <td>@#server.Host?server.Host.Platform:'-'#@</td>
                         <td>@#server.Host?server.Host.CountryCode:'-'#@</td>
                         <td>@#server.State?secondToDate(server.State.Uptime):'-'#@</td>
-                        <td>@#server.State?formatByteSize(server.State.NetInSpeed)+'/s|'+formatByteSize(server.State.NetOutSpeed)+'/s':'-'#@
+                        <td>@#server.State?readableBytes(server.State.NetInSpeed)+'/s|'+readableBytes(server.State.NetOutSpeed)+'/s':'-'#@
                         </td>
-                        <td>@#server.State?formatByteSize(server.State.NetInTransfer)+'|'+formatByteSize(server.State.NetOutTransfer):'-'#@
+                        <td>@#server.State?readableBytes(server.State.NetInTransfer)+'|'+readableBytes(server.State.NetOutTransfer):'-'#@
                         </td>
                         <td>
                             <div v-if="server.State" :class="formatPercent(server.live,server.State.CPU, 100).class">
@@ -226,10 +226,6 @@
                 },
                 formatTimestamp(t) {
                     return new Date(t * 1000).toLocaleString()
-                },
-                formatByteSize(bs) {
-                    const x = this.readableBytes(bs)
-                    return x != "NaN undefined" ? x : '0 KB'
                 }
             }
         })
diff --git a/script/install.sh b/script/install.sh
index 63202b0..b7cfb78 100755
--- a/script/install.sh
+++ b/script/install.sh
@@ -11,7 +11,7 @@ NZ_BASE_PATH="/opt/nezha"
 NZ_DASHBOARD_PATH="${NZ_BASE_PATH}/dashboard"
 NZ_AGENT_PATH="${NZ_BASE_PATH}/agent"
 NZ_AGENT_SERVICE="/etc/systemd/system/nezha-agent.service"
-NZ_VERSION="v0.6.1"
+NZ_VERSION="v0.6.2"
 
 red='\033[0;31m'
 green='\033[0;32m'
@@ -134,6 +134,11 @@ install_dashboard() {
 
     echo -e "> 安装面板"
 
+    if [[ $(uname -m | grep 'arm') != "" ]]; then
+        echo "面板目前不支持在 arm 环境下安装"
+        exit 1
+    fi
+
     # 哪吒监控文件夹
     mkdir -p $NZ_DASHBOARD_PATH
     chmod 777 -R $NZ_DASHBOARD_PATH
diff --git a/service/dao/alertsentinel.go b/service/dao/alertsentinel.go
index 866fff0..d788166 100644
--- a/service/dao/alertsentinel.go
+++ b/service/dao/alertsentinel.go
@@ -59,7 +59,7 @@ func AlertSentinelStart() {
 			checkCount = 0
 			lastPrint = startedAt
 		}
-		time.Sleep(time.Until(startedAt.Add(time.Second * SnapshotDelay)))
+		time.Sleep(time.Until(startedAt.Add(time.Second * 3))) // 3秒钟检查一次
 	}
 }
 
diff --git a/service/rpc/nezha.go b/service/rpc/nezha.go
index 7436463..ce4eef4 100644
--- a/service/rpc/nezha.go
+++ b/service/rpc/nezha.go
@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"github.com/naiba/nezha/model"
+	"github.com/naiba/nezha/pkg/utils"
 	pb "github.com/naiba/nezha/proto"
 	"github.com/naiba/nezha/service/dao"
 )
@@ -94,7 +95,7 @@ func (s *NezhaHandler) ReportSystemInfo(c context.Context, r *pb.Host) (*pb.Rece
 		dao.ServerList[clientID].Host.IP != host.IP {
 		dao.SendNotification(fmt.Sprintf(
 			"IP变更提醒 服务器：%s ，旧IP：%s，新IP：%s。",
-			dao.ServerList[clientID].Name, dao.ServerList[clientID].Host.IP, host.IP), true)
+			dao.ServerList[clientID].Name, utils.IPDesensitize(dao.ServerList[clientID].Host.IP), utils.IPDesensitize(host.IP)), true)
 	}
 	dao.ServerList[clientID].Host = &host
 	return &pb.Receipt{Proced: true}, nil