mpp: remove outdated tune advise (pingcap#6705)

JinheLin · Aug 9, 2021 · 6458b4e · 6458b4e
1 parent 7fadc4e
commit 6458b4e
Showing 1 changed file with 0 additions and 10 deletions.
diff --git a/tiflash/tune-tiflash-performance.md b/tiflash/tune-tiflash-performance.md
@@ -50,13 +50,3 @@ aliases: ['/docs-cn/dev/tiflash/tune-tiflash-performance/','/docs-cn/dev/referen
     ```sql
     set @@tidb_opt_distinct_agg_push_down = 1;
     ```
-
-5. 如果 `Join` 算子没有选择 MPP 执行模式，你可以调整 `tidb_opt_network_factor` 变量值使 `Join` 算子选择 MPP 执行模式：
-
-    `tidb_opt_network_factor` 变量用来设置优化器计算代价时考虑网络开销的比例。该变量值越小，TiDB 对于大量网络传输的开销估算就越小，从而更倾向于选择 MPP 算子。
-
-    {{< copyable "sql" >}}
-
-    ```sql
-    set @@tidb_opt_network_factor = 0.001;
-    ```