update bucket size (#14439)

pingcap · Aug 7, 2023 · 89e0735 · 89e0735
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diff --git a/tikv-configuration-file.md b/tikv-configuration-file.md
@@ -1089,7 +1089,7 @@ Configuration items related to Coprocessor.
 ### `region-bucket-size` <span class="version-mark">New in v6.1.0</span>
 
 + The size of a bucket when `enable-region-bucket` is true.
-+ Default value: `96MiB`
++ Default value: Starting from v7.3.0, the default value is changed from `96MiB` to `50MiB`.
 
 > **Warning:**
 >

diff --git a/tune-region-performance.md b/tune-region-performance.md
@@ -35,4 +35,4 @@ When the Dumpling tool is used, the Region size should not exceed 1 GiB. In this
 >
 > Currently, this is an experimental feature introduced in TiDB v6.1.0. It is not recommended that you use it in production environments.
 
-When Regions are set to a larger size, you need to set [`coprocessor.enable-region-bucket`](/tikv-configuration-file.md#enable-region-bucket-new-in-v610) to `true` to increase the query concurrency. When you use this configuration, Regions are divided into buckets. Buckets are smaller ranges within a Region and are used as the unit of concurrent query to improve the scan concurrency. You can control the bucket size using [`coprocessor.region-bucket-size`](/tikv-configuration-file.md#region-bucket-size-new-in-v610). The default value is `96MiB`.
+When Regions are set to a larger size, you need to set [`coprocessor.enable-region-bucket`](/tikv-configuration-file.md#enable-region-bucket-new-in-v610) to `true` to increase the query concurrency. When you use this configuration, Regions are divided into buckets. Buckets are smaller ranges within a Region and are used as the unit of concurrent query to improve the scan concurrency. You can control the bucket size using [`coprocessor.region-bucket-size`](/tikv-configuration-file.md#region-bucket-size-new-in-v610).