diff --git a/README.md b/README.md
index 2455ee2..542db5d 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 [![Python Support](https://img.shields.io/badge/python-2.7%2B%20-blue.svg)](https://github.com/cppla/ServerStatus)
 [![C++ Compiler](http://img.shields.io/badge/C++-GNU-blue.svg?style=flat&logo=cplusplus)](https://github.com/cppla/ServerStatus)
 [![License](https://img.shields.io/badge/license-MIT-4EB1BA.svg?style=flat-square)](https://github.com/cppla/ServerStatus)
-[![Version](https://img.shields.io/badge/Version-Beta%201.0.7-red)](https://github.com/cppla/ServerStatus)
+[![Version](https://img.shields.io/badge/Version-Beta%201.0.8-red)](https://github.com/cppla/ServerStatus)
 
 ![Latest Version](http://dl.cpp.la/Archive/serverstatus-1.0.2.png)
 
diff --git a/clients/client-linux.py b/clients/client-linux.py
index bf71317..235c734 100755
--- a/clients/client-linux.py
+++ b/clients/client-linux.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # coding: utf-8
-# Update by : https://github.com/cppla/ServerStatus, Update date: 20211009
-# 版本:1.0.2, 支持Python版本:2.7 to 3.9
+# Update by : https://github.com/cppla/ServerStatus, Update date: 20220323
+# 版本:1.0.3, 支持Python版本:2.7 to 3.9
 # 支持操作系统: Linux, OSX, FreeBSD, OpenBSD and NetBSD, both 32-bit and 64-bit architectures
 # 说明: 默认情况下修改server和user就可以了。丢包率监测方向可以自定义,例如:CU = "www.facebook.com"。
 
@@ -9,16 +9,15 @@ SERVER = "127.0.0.1"
 USER = "s01"
 
 
-
-PORT = 35601
 PASSWORD = "USER_DEFAULT_PASSWORD"
-INTERVAL = 1
-PROBEPORT = 80
-PROBE_PROTOCOL_PREFER = "ipv4"  # ipv4, ipv6
-PING_PACKET_HISTORY_LEN = 100
+PORT = 35601
 CU = "cu.tz.cloudcpp.com"
 CT = "ct.tz.cloudcpp.com"
 CM = "cm.tz.cloudcpp.com"
+PROBEPORT = 80
+PROBE_PROTOCOL_PREFER = "ipv4"  # ipv4, ipv6
+PING_PACKET_HISTORY_LEN = 100
+INTERVAL = 1
 
 import socket
 import time
@@ -147,6 +146,10 @@ netSpeed = {
     'avgrx': 0,
     'avgtx': 0
 }
+diskIO = {
+    'read': 0,
+    'write': 0
+}
 
 def _ping_thread(host, mark, port):
     lostPacket = 0
@@ -210,7 +213,72 @@ def _net_speed():
             netSpeed["avgtx"] = avgtx
         time.sleep(INTERVAL)
 
-def get_realtime_date():
+def _disk_io():
+    '''
+    good luck for opensource! by: cpp.la
+    磁盘IO:因为IOPS原因,SSD和HDD、包括RAID卡,ZFS等阵列技术。IO对性能的影响还需要结合自身服务器情况来判断。
+    比如我这里是机械硬盘,大量做随机小文件读写,那么很低的读写也就能造成硬盘长时间的等待。
+    如果这里做连续性IO,那么普通机械硬盘写入到100Mb/s,那么也能造成硬盘长时间的等待。
+    磁盘读写有误差:4k,8k ,https://stackoverflow.com/questions/34413926/psutil-vs-dd-monitoring-disk-i-o
+    :return:
+    '''
+    while True:
+        # pre pid snapshot
+        snapshot_first = {}
+        # next pid snapshot
+        snapshot_second = {}
+        # read count snapshot
+        snapshot_read = 0
+        # write count snapshot
+        snapshot_write = 0
+        # process snapshot
+        pid_snapshot = [str(i) for i in os.listdir("/proc") if i.isdigit() is True]
+        for pid in pid_snapshot:
+            try:
+                with open("/proc/{}/io".format(pid)) as f:
+                    pid_io = {}
+                    for line in f.readlines():
+                        if "read_bytes" in line:
+                            pid_io["read"] = int(line.split("read_bytes:")[-1].strip())
+                        elif "write_bytes" in line and "cancelled_write_bytes" not in line:
+                            pid_io["write"] = int(line.split("write_bytes:")[-1].strip())
+                    pid_io["name"] = open("/proc/{}/comm".format(pid), "r").read().strip()
+                    snapshot_first[pid] = pid_io
+            except:
+                if pid in snapshot_first:
+                    snapshot_first.pop(pid)
+
+        time.sleep(INTERVAL)
+
+        for pid in pid_snapshot:
+            try:
+                with open("/proc/{}/io".format(pid)) as f:
+                    pid_io = {}
+                    for line in f.readlines():
+                        if "read_bytes" in line:
+                            pid_io["read"] = int(line.split("read_bytes:")[-1].strip())
+                        elif "write_bytes" in line and "cancelled_write_bytes" not in line:
+                            pid_io["write"] = int(line.split("write_bytes:")[-1].strip())
+                    pid_io["name"] = open("/proc/{}/comm".format(pid), "r").read().strip()
+                    snapshot_second[pid] = pid_io
+            except:
+                if pid in snapshot_first:
+                    snapshot_first.pop(pid)
+                if pid in snapshot_second:
+                    snapshot_second.pop(pid)
+
+        for k, v in snapshot_first.items():
+            if snapshot_first[k]["name"] == snapshot_second[k]["name"] and snapshot_first[k]["name"] != "bash":
+                snapshot_read += (snapshot_second[k]["read"] - snapshot_first[k]["read"])
+                snapshot_write += (snapshot_second[k]["write"] - snapshot_first[k]["write"])
+        diskIO["read"] = snapshot_read
+        diskIO["write"] = snapshot_write
+
+def get_realtime_data():
+    '''
+    real time get system data
+    :return:
+    '''
     t1 = threading.Thread(
         target=_ping_thread,
         kwargs={
@@ -238,14 +306,12 @@ def get_realtime_date():
     t4 = threading.Thread(
         target=_net_speed,
     )
-    t1.setDaemon(True)
-    t2.setDaemon(True)
-    t3.setDaemon(True)
-    t4.setDaemon(True)
-    t1.start()
-    t2.start()
-    t3.start()
-    t4.start()
+    t5 = threading.Thread(
+        target=_disk_io,
+    )
+    for ti in [t1, t2, t3, t4, t5]:
+        ti.setDaemon(True)
+        ti.start()
 
 def byte_str(object):
     '''
@@ -273,7 +339,7 @@ if __name__ == '__main__':
         elif 'INTERVAL' in argc:
             INTERVAL = int(argc.split('INTERVAL=')[-1])
     socket.setdefaulttimeout(30)
-    get_realtime_date()
+    get_realtime_data()
     while True:
         try:
             print("Connecting...")
@@ -343,6 +409,8 @@ if __name__ == '__main__':
                 array['time_189'] = pingTime.get('189')
                 array['time_10086'] = pingTime.get('10086')
                 array['tcp'], array['udp'], array['process'], array['thread'] = tupd()
+                array['io_read'] = diskIO.get("read")
+                array['io_write'] = diskIO.get("write")
 
                 s.send(byte_str("update " + json.dumps(array) + "\n"))
         except KeyboardInterrupt:
diff --git a/clients/client-psutil.py b/clients/client-psutil.py
index aed5b2c..5f1b58b 100755
--- a/clients/client-psutil.py
+++ b/clients/client-psutil.py
@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 # coding: utf-8
-# Update by : https://github.com/cppla/ServerStatus, Update date: 20211009
+# Update by : https://github.com/cppla/ServerStatus, Update date: 20220323
 # 依赖于psutil跨平台库
-# 版本:1.0.2, 支持Python版本:2.7 to 3.9
+# 版本:1.0.3, 支持Python版本:2.7 to 3.9
 # 支持操作系统: Linux, Windows, OSX, Sun Solaris, FreeBSD, OpenBSD and NetBSD, both 32-bit and 64-bit architectures
 # 说明: 默认情况下修改server和user就可以了。丢包率监测方向可以自定义,例如:CU = "www.facebook.com"。
 
@@ -10,16 +10,15 @@ SERVER = "127.0.0.1"
 USER = "s01"
 
 
-
-PORT = 35601
 PASSWORD = "USER_DEFAULT_PASSWORD"
-INTERVAL = 1
-PROBEPORT = 80
-PROBE_PROTOCOL_PREFER = "ipv4"  # ipv4, ipv6
-PING_PACKET_HISTORY_LEN = 100
+PORT = 35601
 CU = "cu.tz.cloudcpp.com"
 CT = "ct.tz.cloudcpp.com"
 CM = "cm.tz.cloudcpp.com"
+PROBEPORT = 80
+PROBE_PROTOCOL_PREFER = "ipv4"  # ipv4, ipv6
+PING_PACKET_HISTORY_LEN = 100
+INTERVAL = 1
 
 import socket
 import time
@@ -131,6 +130,10 @@ netSpeed = {
     'avgrx': 0,
     'avgtx': 0
 }
+diskIO = {
+    'read': 0,
+    'write': 0
+}
 
 def _ping_thread(host, mark, port):
     lostPacket = 0
@@ -190,7 +193,62 @@ def _net_speed():
         netSpeed["avgtx"] = avgtx
         time.sleep(INTERVAL)
 
-def get_realtime_date():
+def _disk_io():
+    """
+    the code is by: https://github.com/giampaolo/psutil/blob/master/scripts/iotop.py
+    good luck for opensource! modify: cpp.la
+    Calculate IO usage by comparing IO statics before and
+        after the interval.
+        Return a tuple including all currently running processes
+        sorted by IO activity and total disks I/O activity.
+    磁盘IO:因为IOPS原因,SSD和HDD、包括RAID卡,ZFS等。IO对性能的影响还需要结合自身服务器情况来判断。
+    比如我这里是机械硬盘,大量做随机小文件读写,那么很低的读写也就能造成硬盘长时间的等待。
+    如果这里做连续性IO,那么普通机械硬盘写入到100Mb/s,那么也能造成硬盘长时间的等待。
+    磁盘读写有误差:4k,8k ,https://stackoverflow.com/questions/34413926/psutil-vs-dd-monitoring-disk-i-o
+    """
+    while True:
+        # first get a list of all processes and disk io counters
+        procs = [p for p in psutil.process_iter()]
+        for p in procs[:]:
+            try:
+                p._before = p.io_counters()
+            except psutil.Error:
+                procs.remove(p)
+                continue
+        disks_before = psutil.disk_io_counters()
+
+        # sleep some time, only when INTERVAL==1 , io read/write per_sec.
+        # when INTERVAL > 1, io read/write per_INTERVAL
+        time.sleep(INTERVAL)
+
+        # then retrieve the same info again
+        for p in procs[:]:
+            with p.oneshot():
+                try:
+                    p._after = p.io_counters()
+                    p._cmdline = ' '.join(p.cmdline())
+                    if not p._cmdline:
+                        p._cmdline = p.name()
+                    p._username = p.username()
+                except (psutil.NoSuchProcess, psutil.ZombieProcess):
+                    procs.remove(p)
+        disks_after = psutil.disk_io_counters()
+
+        # finally calculate results by comparing data before and
+        # after the interval
+        for p in procs:
+            p._read_per_sec = p._after.read_bytes - p._before.read_bytes
+            p._write_per_sec = p._after.write_bytes - p._before.write_bytes
+            p._total = p._read_per_sec + p._write_per_sec
+
+        diskIO["read"] = disks_after.read_bytes - disks_before.read_bytes
+        diskIO["write"] = disks_after.write_bytes - disks_before.write_bytes
+
+def get_realtime_data():
+    '''
+    real time get system data
+    :return:
+    '''
     t1 = threading.Thread(
         target=_ping_thread,
         kwargs={
@@ -218,14 +276,12 @@ def get_realtime_date():
     t4 = threading.Thread(
         target=_net_speed,
     )
-    t1.setDaemon(True)
-    t2.setDaemon(True)
-    t3.setDaemon(True)
-    t4.setDaemon(True)
-    t1.start()
-    t2.start()
-    t3.start()
-    t4.start()
+    t5 = threading.Thread(
+        target=_disk_io,
+    )
+    for ti in [t1, t2, t3, t4, t5]:
+        ti.setDaemon(True)
+        ti.start()
 
 def byte_str(object):
     '''
@@ -253,7 +309,7 @@ if __name__ == '__main__':
         elif 'INTERVAL' in argc:
             INTERVAL = int(argc.split('INTERVAL=')[-1])
     socket.setdefaulttimeout(30)
-    get_realtime_date()
+    get_realtime_data()
     while 1:
         try:
             print("Connecting...")
@@ -324,6 +380,8 @@ if __name__ == '__main__':
                 array['time_189'] = pingTime.get('189')
                 array['time_10086'] = pingTime.get('10086')
                 array['tcp'], array['udp'], array['process'], array['thread'] = tupd()
+                array['io_read'] = diskIO.get("read")
+                array['io_write'] = diskIO.get("write")
 
                 s.send(byte_str("update " + json.dumps(array) + "\n"))
         except KeyboardInterrupt:
diff --git a/server/src/main.cpp b/server/src/main.cpp
index bcf3575..cbd2052 100644
--- a/server/src/main.cpp
+++ b/server/src/main.cpp
@@ -178,6 +178,10 @@ int CMain::HandleMessage(int ClientNetID, char *pMessage)
 			pClient->m_Stats.m_HDDTotal = rStart["hdd_total"].u.integer;
 		if(rStart["hdd_used"].type)
 			pClient->m_Stats.m_HDDUsed = rStart["hdd_used"].u.integer;
+		if(rStart["io_read"].type)
+			pClient->m_Stats.m_IORead = rStart["io_read"].u.integer;
+		if(rStart["io_write"].type)
+			pClient->m_Stats.m_IOWrite = rStart["io_write"].u.integer;
 		if(rStart["cpu"].type)
 			pClient->m_Stats.m_CPU = rStart["cpu"].u.dbl;
 		if(rStart["online4"].type && pClient->m_ClientNetType == NETTYPE_IPV6)
@@ -190,19 +194,19 @@ int CMain::HandleMessage(int ClientNetID, char *pMessage)
 		if(m_Config.m_Verbose)
 		{
 			if(rStart["online4"].type)
-				dbg_msg("main", "Online4: %s\nUptime: %" PRId64 "\nLoad_1: %f\nLoad_5: %f\nLoad_15: %f\nPing_10010: %f\nPing_189: %f\nPing_10086: %f\nTime_10010: %" PRId64 "\nTime_189: %" PRId64 "\nTime_10086: %" PRId64 "\nTcp_count: %" PRId64 "\nUdp_count: %" PRId64 "\nprocess_count: %" PRId64 "\nthread_count: %" PRId64 "\nNetworkRx: %" PRId64 "\nNetworkTx: %" PRId64 "\nNetworkIN: %" PRId64 "\nNetworkOUT: %" PRId64 "\nMemTotal: %" PRId64 "\nMemUsed: %" PRId64 "\nSwapTotal: %" PRId64 "\nSwapUsed: %" PRId64 "\nHDDTotal: %" PRId64 "\nHDDUsed: %" PRId64 "\nCPU: %f\n",
+				dbg_msg("main", "Online4: %s\nUptime: %" PRId64 "\nLoad_1: %f\nLoad_5: %f\nLoad_15: %f\nPing_10010: %f\nPing_189: %f\nPing_10086: %f\nTime_10010: %" PRId64 "\nTime_189: %" PRId64 "\nTime_10086: %" PRId64 "\nTcp_count: %" PRId64 "\nUdp_count: %" PRId64 "\nprocess_count: %" PRId64 "\nthread_count: %" PRId64 "\nNetworkRx: %" PRId64 "\nNetworkTx: %" PRId64 "\nNetworkIN: %" PRId64 "\nNetworkOUT: %" PRId64 "\nMemTotal: %" PRId64 "\nMemUsed: %" PRId64 "\nSwapTotal: %" PRId64 "\nSwapUsed: %" PRId64 "\nHDDTotal: %" PRId64 "\nHDDUsed: %" PRId64 "\nCPU: %f\nIORead: %" PRId64 "\nIOWrite: %" PRId64 "\n",
 					rStart["online4"].u.boolean ? "true" : "false",
 					pClient->m_Stats.m_Uptime,
-					pClient->m_Stats.m_Load_1, pClient->m_Stats.m_Load_5, pClient->m_Stats.m_Load_15, pClient->m_Stats.m_ping_10010, pClient->m_Stats.m_ping_189, pClient->m_Stats.m_ping_10086, pClient->m_Stats.m_time_10010, pClient->m_Stats.m_time_189, pClient->m_Stats.m_time_10086,pClient->m_Stats.m_tcpCount,pClient->m_Stats.m_udpCount,pClient->m_Stats.m_processCount,pClient->m_Stats.m_threadCount,pClient->m_Stats.m_NetworkRx, pClient->m_Stats.m_NetworkTx, pClient->m_Stats.m_NetworkIN, pClient->m_Stats.m_NetworkOUT, pClient->m_Stats.m_MemTotal, pClient->m_Stats.m_MemUsed, pClient->m_Stats.m_SwapTotal, pClient->m_Stats.m_SwapUsed, pClient->m_Stats.m_HDDTotal, pClient->m_Stats.m_HDDUsed, pClient->m_Stats.m_CPU);
+					pClient->m_Stats.m_Load_1, pClient->m_Stats.m_Load_5, pClient->m_Stats.m_Load_15, pClient->m_Stats.m_ping_10010, pClient->m_Stats.m_ping_189, pClient->m_Stats.m_ping_10086, pClient->m_Stats.m_time_10010, pClient->m_Stats.m_time_189, pClient->m_Stats.m_time_10086,pClient->m_Stats.m_tcpCount,pClient->m_Stats.m_udpCount,pClient->m_Stats.m_processCount,pClient->m_Stats.m_threadCount,pClient->m_Stats.m_NetworkRx, pClient->m_Stats.m_NetworkTx, pClient->m_Stats.m_NetworkIN, pClient->m_Stats.m_NetworkOUT, pClient->m_Stats.m_MemTotal, pClient->m_Stats.m_MemUsed, pClient->m_Stats.m_SwapTotal, pClient->m_Stats.m_SwapUsed, pClient->m_Stats.m_HDDTotal, pClient->m_Stats.m_HDDUsed, pClient->m_Stats.m_CPU, pClient->m_Stats.m_IORead, pClient->m_Stats.m_IOWrite);
 			else if(rStart["online6"].type)
-				dbg_msg("main", "Online6: %s\nUptime: %" PRId64 "\nLoad_1: %f\nLoad_5: %f\nLoad_15: %f\nPing_10010: %f\nPing_189: %f\nPing_10086: %f\nTime_10010: %" PRId64 "\nTime_189: %" PRId64 "\nTime_10086: %" PRId64 "\nTcp_count: %" PRId64 "\nUdp_count: %" PRId64 "\nprocess_count: %" PRId64 "\nthread_count: %" PRId64 "\nNetworkRx: %" PRId64 "\nNetworkTx: %" PRId64 "\nNetworkIN: %" PRId64 "\nNetworkOUT: %" PRId64 "\nMemTotal: %" PRId64 "\nMemUsed: %" PRId64 "\nSwapTotal: %" PRId64 "\nSwapUsed: %" PRId64 "\nHDDTotal: %" PRId64 "\nHDDUsed: %" PRId64 "\nCPU: %f\n",
+				dbg_msg("main", "Online6: %s\nUptime: %" PRId64 "\nLoad_1: %f\nLoad_5: %f\nLoad_15: %f\nPing_10010: %f\nPing_189: %f\nPing_10086: %f\nTime_10010: %" PRId64 "\nTime_189: %" PRId64 "\nTime_10086: %" PRId64 "\nTcp_count: %" PRId64 "\nUdp_count: %" PRId64 "\nprocess_count: %" PRId64 "\nthread_count: %" PRId64 "\nNetworkRx: %" PRId64 "\nNetworkTx: %" PRId64 "\nNetworkIN: %" PRId64 "\nNetworkOUT: %" PRId64 "\nMemTotal: %" PRId64 "\nMemUsed: %" PRId64 "\nSwapTotal: %" PRId64 "\nSwapUsed: %" PRId64 "\nHDDTotal: %" PRId64 "\nHDDUsed: %" PRId64 "\nCPU: %f\nIORead: %" PRId64 "\nIOWrite: %" PRId64 "\n",
 					rStart["online6"].u.boolean ? "true" : "false",
 					pClient->m_Stats.m_Uptime,
-					pClient->m_Stats.m_Load_1, pClient->m_Stats.m_Load_5, pClient->m_Stats.m_Load_15, pClient->m_Stats.m_ping_10010, pClient->m_Stats.m_ping_189, pClient->m_Stats.m_ping_10086, pClient->m_Stats.m_time_10010, pClient->m_Stats.m_time_189, pClient->m_Stats.m_time_10086,pClient->m_Stats.m_tcpCount,pClient->m_Stats.m_udpCount,pClient->m_Stats.m_processCount,pClient->m_Stats.m_threadCount,pClient->m_Stats.m_NetworkRx, pClient->m_Stats.m_NetworkTx, pClient->m_Stats.m_NetworkIN, pClient->m_Stats.m_NetworkOUT, pClient->m_Stats.m_MemTotal, pClient->m_Stats.m_MemUsed, pClient->m_Stats.m_SwapTotal, pClient->m_Stats.m_SwapUsed, pClient->m_Stats.m_HDDTotal, pClient->m_Stats.m_HDDUsed, pClient->m_Stats.m_CPU);
+					pClient->m_Stats.m_Load_1, pClient->m_Stats.m_Load_5, pClient->m_Stats.m_Load_15, pClient->m_Stats.m_ping_10010, pClient->m_Stats.m_ping_189, pClient->m_Stats.m_ping_10086, pClient->m_Stats.m_time_10010, pClient->m_Stats.m_time_189, pClient->m_Stats.m_time_10086,pClient->m_Stats.m_tcpCount,pClient->m_Stats.m_udpCount,pClient->m_Stats.m_processCount,pClient->m_Stats.m_threadCount,pClient->m_Stats.m_NetworkRx, pClient->m_Stats.m_NetworkTx, pClient->m_Stats.m_NetworkIN, pClient->m_Stats.m_NetworkOUT, pClient->m_Stats.m_MemTotal, pClient->m_Stats.m_MemUsed, pClient->m_Stats.m_SwapTotal, pClient->m_Stats.m_SwapUsed, pClient->m_Stats.m_HDDTotal, pClient->m_Stats.m_HDDUsed, pClient->m_Stats.m_CPU, pClient->m_Stats.m_IORead, pClient->m_Stats.m_IOWrite);
 			else
-				dbg_msg("main", "Uptime: %" PRId64 "\nLoad_1: %f\nLoad_5: %f\nLoad_15: %f\nPing_10010: %f\nPing_189: %f\nPing_10086: %f\nTime_10010: %" PRId64 "\nTime_189: %" PRId64 "\nTime_10086: %" PRId64 "\nTcp_count: %" PRId64 "\nUdp_count: %" PRId64 "\nprocess_count: %" PRId64 "\nthread_count: %" PRId64 "\nNetworkRx: %" PRId64 "\nNetworkTx: %" PRId64 "\nNetworkIN: %" PRId64 "\nNetworkOUT: %" PRId64 "\nMemTotal: %" PRId64 "\nMemUsed: %" PRId64 "\nSwapTotal: %" PRId64 "\nSwapUsed: %" PRId64 "\nHDDTotal: %" PRId64 "\nHDDUsed: %" PRId64 "\nCPU: %f\n",
+				dbg_msg("main", "Uptime: %" PRId64 "\nLoad_1: %f\nLoad_5: %f\nLoad_15: %f\nPing_10010: %f\nPing_189: %f\nPing_10086: %f\nTime_10010: %" PRId64 "\nTime_189: %" PRId64 "\nTime_10086: %" PRId64 "\nTcp_count: %" PRId64 "\nUdp_count: %" PRId64 "\nprocess_count: %" PRId64 "\nthread_count: %" PRId64 "\nNetworkRx: %" PRId64 "\nNetworkTx: %" PRId64 "\nNetworkIN: %" PRId64 "\nNetworkOUT: %" PRId64 "\nMemTotal: %" PRId64 "\nMemUsed: %" PRId64 "\nSwapTotal: %" PRId64 "\nSwapUsed: %" PRId64 "\nHDDTotal: %" PRId64 "\nHDDUsed: %" PRId64 "\nCPU: %f\nIORead: %" PRId64 "\nIOWrite: %" PRId64 "\n",
 					pClient->m_Stats.m_Uptime,
-					pClient->m_Stats.m_Load_1, pClient->m_Stats.m_Load_5, pClient->m_Stats.m_Load_15, pClient->m_Stats.m_ping_10010, pClient->m_Stats.m_ping_189, pClient->m_Stats.m_ping_10086, pClient->m_Stats.m_time_10010, pClient->m_Stats.m_time_189, pClient->m_Stats.m_time_10086,pClient->m_Stats.m_tcpCount,pClient->m_Stats.m_udpCount,pClient->m_Stats.m_processCount,pClient->m_Stats.m_threadCount,pClient->m_Stats.m_NetworkRx, pClient->m_Stats.m_NetworkTx, pClient->m_Stats.m_NetworkIN, pClient->m_Stats.m_NetworkOUT, pClient->m_Stats.m_MemTotal, pClient->m_Stats.m_MemUsed, pClient->m_Stats.m_SwapTotal, pClient->m_Stats.m_SwapUsed, pClient->m_Stats.m_HDDTotal, pClient->m_Stats.m_HDDUsed, pClient->m_Stats.m_CPU);
+					pClient->m_Stats.m_Load_1, pClient->m_Stats.m_Load_5, pClient->m_Stats.m_Load_15, pClient->m_Stats.m_ping_10010, pClient->m_Stats.m_ping_189, pClient->m_Stats.m_ping_10086, pClient->m_Stats.m_time_10010, pClient->m_Stats.m_time_189, pClient->m_Stats.m_time_10086,pClient->m_Stats.m_tcpCount,pClient->m_Stats.m_udpCount,pClient->m_Stats.m_processCount,pClient->m_Stats.m_threadCount,pClient->m_Stats.m_NetworkRx, pClient->m_Stats.m_NetworkTx, pClient->m_Stats.m_NetworkIN, pClient->m_Stats.m_NetworkOUT, pClient->m_Stats.m_MemTotal, pClient->m_Stats.m_MemUsed, pClient->m_Stats.m_SwapTotal, pClient->m_Stats.m_SwapUsed, pClient->m_Stats.m_HDDTotal, pClient->m_Stats.m_HDDUsed, pClient->m_Stats.m_CPU, pClient->m_Stats.m_IORead, pClient->m_Stats.m_IOWrite);
 		}
 
 		// clean up
@@ -274,7 +278,7 @@ void CMain::JSONUpdateThread(void *pUser)
                 }
 
 				str_format(pBuf, sizeof(aFileBuf) - (pBuf - aFileBuf),
-				 "{ \"name\": \"%s\",\"type\": \"%s\",\"host\": \"%s\",\"location\": \"%s\",\"online4\": %s, \"online6\": %s, \"uptime\": \"%s\",\"load_1\": %.2f, \"load_5\": %.2f, \"load_15\": %.2f,\"ping_10010\": %.2f, \"ping_189\": %.2f, \"ping_10086\": %.2f,\"time_10010\": %" PRId64 ", \"time_189\": %" PRId64 ", \"time_10086\": %" PRId64 ", \"tcp_count\": %" PRId64 ", \"udp_count\": %" PRId64 ", \"process_count\": %" PRId64 ", \"thread_count\": %" PRId64 ", \"network_rx\": %" PRId64 ", \"network_tx\": %" PRId64 ", \"network_in\": %" PRId64 ", \"network_out\": %" PRId64 ", \"cpu\": %d, \"memory_total\": %" PRId64 ", \"memory_used\": %" PRId64 ", \"swap_total\": %" PRId64 ", \"swap_used\": %" PRId64 ", \"hdd_total\": %" PRId64 ", \"hdd_used\": %" PRId64 ", \"last_network_in\": %" PRId64 ", \"last_network_out\": %" PRId64 ",\"custom\": \"%s\" },\n",
+				 "{ \"name\": \"%s\",\"type\": \"%s\",\"host\": \"%s\",\"location\": \"%s\",\"online4\": %s, \"online6\": %s, \"uptime\": \"%s\",\"load_1\": %.2f, \"load_5\": %.2f, \"load_15\": %.2f,\"ping_10010\": %.2f, \"ping_189\": %.2f, \"ping_10086\": %.2f,\"time_10010\": %" PRId64 ", \"time_189\": %" PRId64 ", \"time_10086\": %" PRId64 ", \"tcp_count\": %" PRId64 ", \"udp_count\": %" PRId64 ", \"process_count\": %" PRId64 ", \"thread_count\": %" PRId64 ", \"network_rx\": %" PRId64 ", \"network_tx\": %" PRId64 ", \"network_in\": %" PRId64 ", \"network_out\": %" PRId64 ", \"cpu\": %d, \"memory_total\": %" PRId64 ", \"memory_used\": %" PRId64 ", \"swap_total\": %" PRId64 ", \"swap_used\": %" PRId64 ", \"hdd_total\": %" PRId64 ", \"hdd_used\": %" PRId64 ", \"last_network_in\": %" PRId64 ", \"last_network_out\": %" PRId64 ",\"io_read\": %" PRId64 ", \"io_write\": %" PRId64 ",\"custom\": \"%s\" },\n",
 					pClients[i].m_aName,pClients[i].m_aType,pClients[i].m_aHost,pClients[i].m_aLocation,
 					pClients[i].m_Stats.m_Online4 ? "true" : "false",pClients[i].m_Stats.m_Online6 ? "true" : "false",
 					aUptime, pClients[i].m_Stats.m_Load_1, pClients[i].m_Stats.m_Load_5, pClients[i].m_Stats.m_Load_15, pClients[i].m_Stats.m_ping_10010, pClients[i].m_Stats.m_ping_189, pClients[i].m_Stats.m_ping_10086,
@@ -283,6 +287,7 @@ void CMain::JSONUpdateThread(void *pUser)
 					pClients[i].m_Stats.m_SwapTotal, pClients[i].m_Stats.m_SwapUsed, pClients[i].m_Stats.m_HDDTotal, pClients[i].m_Stats.m_HDDUsed,
 					pClients[i].m_Stats.m_NetworkIN == 0 || pClients[i].m_LastNetworkIN == 0 ? pClients[i].m_Stats.m_NetworkIN : pClients[i].m_LastNetworkIN,
 					pClients[i].m_Stats.m_NetworkOUT == 0 || pClients[i].m_LastNetworkOUT == 0 ? pClients[i].m_Stats.m_NetworkOUT : pClients[i].m_LastNetworkOUT,
+					pClients[i].m_Stats.m_IORead, pClients[i].m_Stats.m_IOWrite,
 					pClients[i].m_Stats.m_aCustom);
 				pBuf += strlen(pBuf);
 			}
diff --git a/server/src/main.h b/server/src/main.h
index 36596f1..2993809 100644
--- a/server/src/main.h
+++ b/server/src/main.h
@@ -73,6 +73,8 @@ class CMain
 			int64_t m_udpCount;
 			int64_t m_processCount;
 			int64_t m_threadCount;
+			int64_t m_IORead;
+			int64_t m_IOWrite;
 			double m_CPU;
 			char m_aCustom[512];
 			// Options
diff --git a/web/css/dark.css b/web/css/dark.css
index ca4b0a0..1e0163c 100644
--- a/web/css/dark.css
+++ b/web/css/dark.css
@@ -19,14 +19,15 @@ tr.odd.expandRow > :hover { background: #212e36 !important; }
 .expandRow > td { padding: 0 !important; border-top: 0px !important; }
 #month_traffic { min-width: 85px; max-width: 95px;}
 #network { min-width: 115px; }
-#cpu, #ram, #hdd { min-width: 45px; max-width: 90px; }
+#cpu, #ram, #hdd { min-width: 20px; max-width: 60px; }
+#io { width: 115px; }
 #ping { max-width: 95px; }
 
 @media only screen and (max-width: 1080px) {
 	#type, tr td:nth-child(4)			{ display:none; visibility:hidden; }
 	#location, tr td:nth-child(5)		{ display:none; visibility:hidden; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
 @media only screen and (max-width: 720px) {
 	body								{ font-size: 10px; }
@@ -34,7 +35,7 @@ tr.odd.expandRow > :hover { background: #212e36 !important; }
 	#type, tr td:nth-child(4)			{ display:none; visibility:hidden; }
 	#location, tr td:nth-child(5)		{ display:none; visibility:hidden; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
 @media only screen and (max-width: 620px) {
 	body								{ font-size: 10px; }
@@ -44,7 +45,7 @@ tr.odd.expandRow > :hover { background: #212e36 !important; }
 	#location, tr td:nth-child(5)		{ display:none; visibility:hidden; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
 	#traffic, tr td:nth-child(9)		{ display:none; visibility:hidden; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
 @media only screen and (max-width: 533px) {
 	body								{ font-size: 10px; }
@@ -54,7 +55,7 @@ tr.odd.expandRow > :hover { background: #212e36 !important; }
 	#location, tr td:nth-child(5)		{ display:none; visibility:hidden; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
 	#traffic, tr td:nth-child(9)		{ display:none; visibility:hidden; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
 @media only screen and (max-width: 450px) {
 	body								{ font-size: 10px; }
@@ -66,5 +67,5 @@ tr.odd.expandRow > :hover { background: #212e36 !important; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
 	#traffic, tr td:nth-child(9)		{ display:none; visibility:hidden; }
 	#cpu, #ram, #hdd 					{ min-width: 25px; max-width: 50px; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
diff --git a/web/css/light.css b/web/css/light.css
index cde5cb6..aaa4d92 100644
--- a/web/css/light.css
+++ b/web/css/light.css
@@ -16,14 +16,15 @@ tr.odd.expandRow > :hover { background: #FFF !important; }
 .expandRow > td { padding: 0 !important; border-top: 0px !important; }
 #month_traffic { min-width: 85px; max-width: 95px;}
 #network { min-width: 115px; }
-#cpu, #ram, #hdd { min-width: 45px; max-width: 90px; }
+#cpu, #ram, #hdd { min-width: 20px; max-width: 60px; }
+#io { width: 115px; }
 #ping { max-width: 95px; }
 
 @media only screen and (max-width: 1080px) {
 	#type, tr td:nth-child(4)			{ display:none; visibility:hidden; }
 	#location, tr td:nth-child(5)		{ display:none; visibility:hidden; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
 @media only screen and (max-width: 720px) {
 	body								{ font-size: 10px; }
@@ -31,7 +32,7 @@ tr.odd.expandRow > :hover { background: #FFF !important; }
 	#type, tr td:nth-child(4)			{ display:none; visibility:hidden; }
 	#location, tr td:nth-child(5)		{ display:none; visibility:hidden; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
 @media only screen and (max-width: 620px) {
 	body								{ font-size: 10px; }
@@ -41,7 +42,7 @@ tr.odd.expandRow > :hover { background: #FFF !important; }
 	#location, tr td:nth-child(5)		{ display:none; visibility:hidden; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
 	#traffic, tr td:nth-child(9)		{ display:none; visibility:hidden; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
 @media only screen and (max-width: 533px) {
 	body								{ font-size: 10px; }
@@ -51,7 +52,7 @@ tr.odd.expandRow > :hover { background: #FFF !important; }
 	#location, tr td:nth-child(5)		{ display:none; visibility:hidden; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
 	#traffic, tr td:nth-child(9)		{ display:none; visibility:hidden; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
 @media only screen and (max-width: 450px) {
 	body								{ font-size: 10px; }
@@ -63,5 +64,5 @@ tr.odd.expandRow > :hover { background: #FFF !important; }
 	#uptime, tr td:nth-child(6)			{ display:none; visibility:hidden; }
 	#traffic, tr td:nth-child(9)		{ display:none; visibility:hidden; }
 	#cpu, #ram, #hdd 					{ min-width: 25px; max-width: 50px; }
-	#ping, tr td:nth-child(13)          { display:none; visibility:hidden; }
+	#ping, tr td:nth-child(14)          { display:none; visibility:hidden; }
 }
diff --git a/web/index.html b/web/index.html
index a96d554..ebb389c 100644
--- a/web/index.html
+++ b/web/index.html
@@ -87,6 +87,7 @@
 					<th id="cpu">核芯</th>
 					<th id="ram">内存</th>
 					<th id="hdd">硬盘</th>
+					<th id="io">IO(r/w)</th>
 					<th id="ping">联通|电信|移动</th>
 				</tr>
 				</thead>
diff --git a/web/js/serverstatus.js b/web/js/serverstatus.js
index d7b6556..b8bf938 100644
--- a/web/js/serverstatus.js
+++ b/web/js/serverstatus.js
@@ -74,6 +74,7 @@ function uptime() {
 						"<td id=\"cpu\"><div class=\"progress\"><div style=\"width: 100%;\" class=\"progress-bar progress-bar-warning\"><small>加载中</small></div></div></td>" +
 						"<td id=\"memory\"><div class=\"progress\"><div style=\"width: 100%;\" class=\"progress-bar progress-bar-warning\"><small>加载中</small></div></div></td>" +
 						"<td id=\"hdd\"><div class=\"progress\"><div style=\"width: 100%;\" class=\"progress-bar progress-bar-warning\"><small>加载中</small></div></div></td>" +
+						"<td id=\"io\">加载中</td>" +
 						"<td id=\"ping\"><div class=\"progress\"><div style=\"width: 100%;\" class=\"progress-bar progress-bar-warning\"><small>加载中</small></div></div></td>" +
 					"</tr>" +
 					"<tr class=\"expandRow " + hack + "\"><td colspan=\"16\"><div class=\"accordian-body collapse\" id=\"rt" + i + "\">" +
@@ -135,6 +136,7 @@ function uptime() {
 					TableRow.children["hdd"].children[0].children[0].className = "progress-bar progress-bar-danger";
 					TableRow.children["hdd"].children[0].children[0].style.width = "100%";
 					TableRow.children["hdd"].children[0].children[0].innerHTML = "<small>关闭</small>";
+					TableRow.children["io"].innerHTML = "–";
 					TableRow.children["ping"].children[0].children[0].className = "progress-bar progress-bar-danger";
 					TableRow.children["ping"].children[0].children[0].style.width = "100%";
 					TableRow.children["ping"].children[0].children[0].innerHTML = "<small>关闭</small>";
@@ -238,6 +240,19 @@ function uptime() {
 				TableRow.children["hdd"].children[0].children[0].innerHTML = HDD + "%";
 				ExpandRow[0].children["expand_hdd"].innerHTML = "硬盘: " + bytesToSize(result.servers[i].hdd_used*1024*1024, 2) + " / " + bytesToSize(result.servers[i].hdd_total*1024*1024, 2);
 
+				//IO, 过小的B字节单位没有意义
+				var io = "";
+				if(result.servers[i].io_read < 1024*1024)
+					io += (result.servers[i].io_read/1024).toFixed(1) + "K";
+				else
+					io += (result.servers[i].io_read/1024/1024).toFixed(1) + "M";
+				io += "💿"
+				if(result.servers[i].io_write < 1024*1024)
+					io += (result.servers[i].io_write/1024).toFixed(1) + "K";
+				else
+					io += (result.servers[i].io_write/1024/1024).toFixed(1) + "M";
+				TableRow.children["io"].innerHTML = io;
+
                 // delay time
 
 				// tcp, udp, process, thread count
@@ -291,6 +306,8 @@ function uptime() {
 				TableRow.children["hdd"].children[0].children[0].className = "progress-bar progress-bar-error";
 				TableRow.children["hdd"].children[0].children[0].style.width = "100%";
 				TableRow.children["hdd"].children[0].children[0].innerHTML = "<small>错误</small>";
+				TableRow.children["io"].children[0].children[0].className = "progress-bar progress-bar-error";
+				TableRow.children["io"].children[0].children[0].innerHTML = "<small>错误</small>";
 				TableRow.children["ping"].children[0].children[0].className = "progress-bar progress-bar-error";
 				TableRow.children["ping"].children[0].children[0].style.width = "100%";
 				TableRow.children["ping"].children[0].children[0].innerHTML = "<small>错误</small>";