Update 6.monitor-parameter.md

docs-2.0/nebula-dashboard/6.monitor-parameter.md

@@ -4,7 +4,7 @@ This topic will describe the monitoring metrics in Nebula Graph Dashboard.
 
 !!! note
 
-    The default unit in Disk and Network is byte. The unit will change with the data magnitude as the page displays. For example, when the flow is less than 1 KB/s, the unit will be Bytes/s.
+    The default unit in **Disk** and **Network** is byte. The unit will change with the data magnitude as the page displays. For example, when the flow is less than 1 KB/s, the unit will be Bytes/s.
 
 ## Machine
 
@@ -15,17 +15,17 @@ This topic will describe the monitoring metrics in Nebula Graph Dashboard.
 |`cpu_utilization`| The percentage of used CPU. |
 |`cpu_idle`| The percentage of idled CPU. |
 |`cpu_wait`| The percentage of CPU waiting for IO operations. |
-|`cpu_user`| The percentage of CPU used by users (not the graph space of Nebula Graph). |
-|`cpu_system`| The percentage of CPU used by the system (not the kernel space of Nebula Graph). |
+|`cpu_user`| The percentage of CPU used by users. |
+|`cpu_system`| The percentage of CPU used by the system. |
 
 ### Memory
 
 |Parameter| Description|
 |:---|:---|
 |`memory_utilization`| The percentage of used memory. |
-|`memory_used`| The memory that is used. |
-|`memory_actual_used`| The memory that is in actual use. |
-|`memory_free`| The memory that is idled. |
+|`memory_used`| The memory space used (including caches). |
+|`memory_actual_used`| The memory space used (not including caches). |
+|`memory_free`| The memory space idled. |
 
 ### Load
 
@@ -39,10 +39,10 @@ This topic will describe the monitoring metrics in Nebula Graph Dashboard.
 
 |Parameter| Description|
 |:---|:---|
-|`disk_used`| The disk that is used. |
-|`disk_free`| The disk that is idled. |
-|`disk_readbytes`| The number of bytes that the disk reads every second. |
-|`disk_writebytes`| The number of bytes that the disk writes every second. |
+|`disk_used`| The disk space used. |
+|`disk_free`| The disk space idled. |
+|`disk_readbytes`| The number of bytes that the system reads in the disk every second. |
+|`disk_writebytes`| The number of bytes that the system writes in the disk every second. |
 |`disk_readiops`| The number of read queries that the disk receives every second. |
 |`disk_writeiops`| The number of write queries that the disk receives every second. |
 |`inode_utilization`| The percentage of used inode. |
@@ -51,12 +51,12 @@ This topic will describe the monitoring metrics in Nebula Graph Dashboard.
 
 |Parameter| Description|
 |:---|:---|
-|`network_in_rate`| The number of bytes that the network receives every second. |
-|`network_out_rate`| The number of bytes that the network sends out every second. |
-|`network_in_errs`| The number of wrong bytes that the network receives every second. |
-|`network_out_errs`| The number of wrong bytes that the network sends out every second. |
-|`network_in_packets`| The number of data packages that the network receives every second. |
-|`network_out_packets`| The number of data packages that the network sends out every second. |
+|`network_in_rate`| The number of bytes that the network card receives every second. |
+|`network_out_rate`| The number of bytes that the network card sends out every second. |
+|`network_in_errs`| The number of wrong bytes that the network card receives every second. |
+|`network_out_errs`| The number of wrong bytes that the network card sends out every second. |
+|`network_in_packets`| The number of data packages that the network card receives every second. |
+|`network_out_packets`| The number of data packages that the network card sends out every second. |
 
 ## Service
 
@@ -81,10 +81,9 @@ This topic will describe the monitoring metrics in Nebula Graph Dashboard.
 
 |Parameter| Description|
 |:---|:---|
-|`add_edges_atomic_latency_us`| Add a single latency of edges. |
-|`add_edges_latency_us`| Add the average latency of edges. |
-|`add_vertices_latency_us`| Add the average latency of vertices. |
-|`delete_edges_latency_us`| Delete the average latency of edges. |
-|`delete_vertices_latency_us`| Delete the average latency to vertices. |
-|`forward_tranx_latency_us`| Transmit the average latency. |
-|`get_neighbors_latency_us`| Query the average latency of neighbors. |
+|`add_edges_latency_us`| The average latency of adding edges. |
+|`add_vertices_latency_us`| The average latency of adding vertices. |
+|`delete_edges_latency_us`| The average latency of deleting edges. |
+|`delete_vertices_latency_us`| The average latency of deleting vertices. |
+|`forward_tranx_latency_us`| The average latency of transmitting. |
+|`get_neighbors_latency_us`| The average latency of querying neighbors. |