diff --git a/docs/load-test.md b/docs/load-test.md
index 89e135a5..8aee6971 100644
--- a/docs/load-test.md
+++ b/docs/load-test.md
@@ -21,10 +21,10 @@ $ locusts -f examples/first-testcase.yml
 
 In this case, you can reuse all features of [`Locust`][Locust].
 
-That’s not all about it. With the argument `--cpu-cores`, you can even start locust with master and specified number of slaves (default to cpu cores number) at one time, which means you can leverage all cpus of your machine.
+That’s not all about it. With the argument `--processes`, you can even start locust with master and specified number of slaves (default to cpu cores number) at one time, which means you can leverage all cpus of your machine.
 
 ```bash
-$ locusts -f examples/first-testcase.yml --cpu-cores 4
+$ locusts -f examples/first-testcase.yml --processes 4
 [2017-08-26 23:51:47,071] bogon/INFO/locust.main: Starting web monitor at *:8089
 [2017-08-26 23:51:47,075] bogon/INFO/locust.main: Starting Locust 0.8a2
 [2017-08-26 23:51:47,078] bogon/INFO/locust.main: Starting Locust 0.8a2
diff --git a/httprunner/__about__.py b/httprunner/__about__.py
index 308d0631..0c141353 100644
--- a/httprunner/__about__.py
+++ b/httprunner/__about__.py
@@ -1,7 +1,7 @@
 __title__ = 'HttpRunner'
 __description__ = 'One-stop solution for HTTP(S) testing.'
 __url__ = 'https://github.com/HttpRunner/HttpRunner'
-__version__ = '1.3.8.beta.2'
+__version__ = '1.3.8.beta.3'
 __author__ = 'debugtalk'
 __author_email__ = 'mail@debugtalk.com'
 __license__ = 'MIT'
diff --git a/httprunner/cli.py b/httprunner/cli.py
index 93f259e0..cf026a6a 100644
--- a/httprunner/cli.py
+++ b/httprunner/cli.py
@@ -117,34 +117,34 @@ def main_locust():
     testcase_file_path = sys.argv[testcase_index]
     sys.argv[testcase_index] = locusts.parse_locustfile(testcase_file_path)
 
-    if "--cpu-cores" in sys.argv:
-        """ locusts -f locustfile.py --cpu-cores 4
+    if "--processes" in sys.argv:
+        """ locusts -f locustfile.py --processes 4
         """
         if "--no-web" in sys.argv:
-            logger.log_error("conflict parameter args: --cpu-cores & --no-web. \nexit.")
+            logger.log_error("conflict parameter args: --processes & --no-web. \nexit.")
             sys.exit(1)
 
-        cpu_cores_index = sys.argv.index('--cpu-cores')
+        processes_index = sys.argv.index('--processes')
 
-        cpu_cores_num_index = cpu_cores_index + 1
+        processes_count_index = processes_index + 1
 
-        if cpu_cores_num_index >= len(sys.argv):
-            """ do not specify cpu cores explicitly
-                locusts -f locustfile.py --cpu-cores
+        if processes_count_index >= len(sys.argv):
+            """ do not specify processes count explicitly
+                locusts -f locustfile.py --processes
             """
-            cpu_cores_num_value = multiprocessing.cpu_count()
-            logger.log_warning("cpu cores number not specified, use {} by default.".format(cpu_cores_num_value))
+            processes_count = multiprocessing.cpu_count()
+            logger.log_warning("processes count not specified, use {} by default.".format(processes_count))
         else:
             try:
-                """ locusts -f locustfile.py --cpu-cores 4 """
-                cpu_cores_num_value = int(sys.argv[cpu_cores_num_index])
-                sys.argv.pop(cpu_cores_num_index)
+                """ locusts -f locustfile.py --processes 4 """
+                processes_count = int(sys.argv[processes_count_index])
+                sys.argv.pop(processes_count_index)
             except ValueError:
-                """ locusts -f locustfile.py --cpu-cores -P 8888 """
-                cpu_cores_num_value = multiprocessing.cpu_count()
-                logger.log_warning("cpu cores number not specified, use {} by default.".format(cpu_cores_num_value))
+                """ locusts -f locustfile.py --processes -P 8888 """
+                processes_count = multiprocessing.cpu_count()
+                logger.log_warning("processes count not specified, use {} by default.".format(processes_count))
 
-        sys.argv.pop(cpu_cores_index)
-        locusts.run_locusts_on_cpu_cores(sys.argv, cpu_cores_num_value)
+        sys.argv.pop(processes_index)
+        locusts.run_locusts_with_processes(sys.argv, processes_count)
     else:
         locusts.main()
diff --git a/httprunner/locusts.py b/httprunner/locusts.py
index 0f4be04e..3d7996fa 100644
--- a/httprunner/locusts.py
+++ b/httprunner/locusts.py
@@ -65,11 +65,11 @@ def start_slave(sys_argv):
     sys.argv = sys_argv
     main()
 
-def run_locusts_on_cpu_cores(sys_argv, cpu_cores_num_value):
+def run_locusts_with_processes(sys_argv, processes_count):
     processes = []
     manager = multiprocessing.Manager()
 
-    for _ in range(cpu_cores_num_value):
+    for _ in range(processes_count):
         p_slave = multiprocessing.Process(target=start_slave, args=(sys_argv,))
         p_slave.daemon = True
         p_slave.start()