[TS-468]<fix>: add io_read_rate, io_write_rate

src/plugins/monitor/src/monMain.c

@@ -204,6 +204,7 @@ static void monBuildMonitorSql(char *sql, int32_t cmd) {
              ", disk_used float, disk_total int"
              ", band_speed float"
              ", io_read float, io_write float"
+             ", io_read_rate float, io_write_rate float"
              ", req_http int, req_select int, req_insert int"
              ") tags (dnodeid int, fqdn binary(%d))",
              tsMonitorDbName, TSDB_FQDN_LEN);
@@ -325,10 +326,10 @@ static int32_t monBuildIoSql(char *sql) {
     monDebug("failed to get io info");
   }
 
-  readKB = readKB/tsMonitorInterval;
-  writeKB = writeKB/tsMonitorInterval;
+  float readRate = readKB/tsMonitorInterval;
+  float writeRate = writeKB/tsMonitorInterval;
 
-  return sprintf(sql, ", %f, %f", readKB, writeKB);
+  return sprintf(sql, ", %f, %f, %f, %f", readKB, writeKB, readRate, writeRate);
 }
 
 static void monSaveSystemInfo() {