update documents

Author: muroon

README.md

@@ -60,6 +60,17 @@ Note
 - Detailed explanation is described [here](doc/result_mode.md).
 - [Usages of Result Mode](doc/result_mode.md#usages).
 
+## Performance
+
+Response time for fetching 1,000,000 records
+
+|package|response time|
+|--|--|
+|segmentio/go-athena|2m 33.4132205s|
+|speee/go-athena API mode|2m 26.475804292s|
+|speee/go-athena DL mode|20.719727417s|
+|speee/go-athena GZIP mode|17.661648209s|
+
 ## Prepared Statements
 
 You can use [Athena Prepared Statements](https://docs.aws.amazon.com/athena/latest/ug/querying-with-prepared-statements.html).

doc/result_mode.md

@@ -65,6 +65,15 @@ I think the following trends can be said.
 - DL mode and API mode are effective for a small number of cases
 - GZIP DL mode is very effective for a large number of cases
 
+### Comparison with segmentio/go-athena
+
+|package|response time (500000 rows)|response time (1000000 rows)|response time (5000000 rows)|
+|--|--|--|--|
+|segmentio/go-athena|1m 19.8935445s|2m 33.4132205s|12m 36.8392345s|
+|speee/go-athena API mode|1m 18.9925315s|2m 26.475804292s|12m 25.008203542s|
+|speee/go-athena DL mode|12.721702583s|20.719727417s|1m 23.689167708s|
+|speee/go-athena GZIP mode|15.8399715s|17.661648209s|43.873663666s|
+
 ## Usages
 
 ### Setting in Configuration