resolve comments

Author: SingleZombie

docs/en/tutorials/how_to_evaluate_a_model.md

@@ -22,6 +22,7 @@ ${MODEL_CFG} \
 --device ${DEVICE} \
 [--cfg-options ${CFG_OPTIONS}] \
 [--metric-options ${METRIC_OPTIONS}]
+[--log2file work_dirs/output.txt]
 ```
 
 ## Description of all arguments
@@ -39,6 +40,7 @@ ${MODEL_CFG} \
 * `--cfg-options`: Extra or overridden settings that will be merged into the current deploy config.
 * `--metric-options`: Custom options for evaluation. The key-value pair in xxx=yyy
 format will be kwargs for dataset.evaluate() function.
+* `--log2file`: log evaluation results (and speed) to file.
 
 \* Other arguments in `tools/test.py` are used for speed test. They have no concern with evaluation.
 

docs/en/tutorials/how_to_measure_performance_of_models.md

@@ -24,10 +24,10 @@ ${MODEL_CFG} \
 * `deploy_cfg`: The config for deployment.
 * `model_cfg`: The config of the model in OpenMMLab codebases.
 * `--model`: The backend model files. For example, if we convert a model to ncnn, we need to pass a ".param" file and a ".bin" file. If we convert a model to TensorRT, we need to pass the model file with ".engine" suffix.
+* `--log2file`: log evaluation results and speed to file.
 * `--speed-test`:  Whether to activate speed test.
 * `--warmup`: warmup before counting inference elapse, require setting speed-test first.
 * `--log-interval`: The interval between each log, require setting speed-test first.
-* `--log2file`: Log speed test result in file format, need speed-test first.
 
 \* Other arguments in `tools/test.py` are used for performance test. They have no concern with speed test.
 

tools/test.py

@@ -54,6 +54,11 @@ def parse_args():
         action=DictAction,
         help='custom options for evaluation, the key-value pair in xxx=yyy '
         'format will be kwargs for dataset.evaluate() function')
+    parser.add_argument(
+        '--log2file',
+        type=str,
+        help='log evaluation results and speed to file',
+        default=None)
     parser.add_argument(
         '--speed-test', action='store_true', help='activate speed test')
     parser.add_argument(
@@ -68,11 +73,6 @@ def parse_args():
         help='the interval between each log, require setting '
         'speed-test first',
         default=100)
-    parser.add_argument(
-        '--log2file',
-        type=str,
-        help='log evaluation results and speed to file',
-        default=None)
 
     args = parser.parse_args()
     return args