multirocks related config update (pingcap#13587)

configure-load-base-split.md

@@ -31,9 +31,9 @@ The Region split by Load Base Split will not be merged quickly. On the one hand,
 
 The Load Base Split feature is currently controlled by the following parameters:
 
-- `split.qps-threshold`: The QPS threshold at which a Region is identified as a hotspot. The default value is `3000` per second.
-- `split.byte-threshold`: The traffic threshold at which a Region is identified as a hotspot. The unit is byte and the default value is 30 MiB per second. (Introduced in v5.0)
-- `split.region-cpu-overload-threshold-ratio`: The CPU usage threshold (the percentage of CPU time of the read thread pool) at which a Region is identified as a hotspot. The default value is `0.25`. (Introduced in v6.2.0)
+- [`split.qps-threshold`](/tikv-configuration-file.md#qps-threshold): The QPS threshold at which a Region is identified as a hotspot. The default value is `3000` per second when [`region-split-size`](/tikv-configuration-file.md#region-split-size) is less than 4 GB; otherwise the default value is `7000`.
+- [`split.byte-threshold`](/tikv-configuration-file.md#byte-threshold-new-in-v50): (Introduced in v5.0) The traffic threshold at which a Region is identified as a hotspot. The unit is byte. The default value is 30 MiB per second when `region-split-size` is less than 4 GB; otherwise the default value is 100 MiB per second.
+- [`split.region-cpu-overload-threshold-ratio`](/tikv-configuration-file.md#region-cpu-overload-threshold-ratio-new-in-v620): (Introduced in v6.2.0) The CPU usage threshold (the percentage of CPU time of the read thread pool) at which a Region is identified as a hotspot. The default value is `0.25` when `region-split-size` is less than 4 GB; otherwise the default value is `0.75`.
 
 If a Region meets one of the following conditions for 10 consecutive seconds, TiKV tries to split the Region:
 

releases/release-7.1.0.md

@@ -252,6 +252,9 @@ In v7.1.0, the key new features and improvements are as follows:
 | -------- | -------- | -------- | -------- |
 | TiDB | [`force-init-stats`](/tidb-configuration-file.md#force-init-stats-new-in-v710) | Newly added | Controls whether to wait for statistics initialization to finish before providing services during TiDB startup. |
 | TiDB | [`lite-init-stats`](/tidb-configuration-file.md#lite-init-stats-new-in-v710) | Newly added | Controls whether to use lightweight statistics initialization during TiDB startup. |
+| TiKV | [`split.byte-threshold`](/tikv-configuration-file.md#byte-threshold-new-in-v50) | Modified | Changes the default value from `30MiB` to `100MiB` when [`region-split-size`](/tikv-configuration-file.md#region-split-size) is greater than or equal to 4 GB. |
+| TiKV | [`split.qps-threshold`](/tikv-configuration-file.md#qps-threshold) | Modified | Changes the default value from `3000` to `7000` when [`region-split-size`](/tikv-configuration-file.md#region-split-size) is greater than or equal to 4 GB. |
+| TiKV | [`split.region-cpu-overload-threshold-ratio`](/tikv-configuration-file.md#region-cpu-overload-threshold-ratio-new-in-v620) | Modified | Changes the default value from `0.25` to `0.75` when [`region-split-size`](/tikv-configuration-file.md#region-split-size) is greater than or equal to 4 GB. |
 | PD | [`store-limit-version`](/pd-configuration-file.md#store-limit-version-new-in-v710) | Newly added | Controls the mode of store limit. Value options are `"v1"` and `"v2"`. |
 | TiFlash | `http_port` | Deleted | Deprecates the HTTP service port (default `8123`). |
 | TiCDC | [`sink.enable-partition-separator`](/ticdc/ticdc-changefeed-config.md#cli-and-configuration-parameters-of-ticdc-changefeeds) | Modified | Changes the default value from `false` to `true` after further tests, meaning that partitions in a table are stored in separate directories by default. It is recommended that you keep the value as `true` to avoid the potential issue of data loss during replication of partitioned tables to storage services. |

tikv-configuration-file.md

@@ -2221,4 +2221,32 @@ Configuration items related to resource control of the TiKV storage layer.
 
 + Controls whether to enable scheduling for user foreground read/write requests according to [Request Unit (RU)](/tidb-resource-control.md#what-is-request-unit-ru) of the corresponding resource groups. For information about TiDB resource groups and resource control, see [TiDB resource control](/tidb-resource-control.md).
 + Enabling this configuration item only works when [`tidb_enable_resource_control](/system-variables.md#tidb_enable_resource_control-new-in-v660) is enabled on TiDB. When this configuration item is enabled, TiKV will use the priority queue to schedule the queued read/write requests from foreground users. The scheduling priority of a request is inversely related to the amount of resources already consumed by the resource group that receives this request, and positively related to the quota of the corresponding resource group.
-+ Default value: `true`, which means scheduling based on the RU of the resource group is enabled.
++ Default value: `true`, which means scheduling based on the RU of the resource group is enabled.
+
+## split
+
+Configuration items related to [Load Base Split](/configure-load-base-split.md).
+
+### `byte-threshold` <span class="version-mark">New in v5.0</span>
+
++ Controls the traffic threshold at which a Region is identified as a hotspot.
++ Default value:
+
+    + `30MiB` per second when [`region-split-size`](#region-split-size) is less than 4 GB.
+    + `100MiB` per second when [`region-split-size`](#region-split-size) is greater than or equal to 4 GB.
+
+### `qps-threshold`
+
++ Controls the QPS threshold at which a Region is identified as a hotspot.
++ Default value:
+
+    + `3000` when [`region-split-size`](#region-split-size) is less than 4 GB.
+    + `7000` when  [`region-split-size`](#region-split-size) is greater than or equal to 4 GB.
+
+### `region-cpu-overload-threshold-ratio` <span class="version-mark">New in v6.2.0</span>
+
++ Controls the CPU usage threshold at which a Region is identified as a hotspot.
++ Default value:
+
+    + `0.25` when [`region-split-size`](#region-split-size) is less than 4 GB.
+    + `0.75` when  [`region-split-size`](#region-split-size) is greater than or equal to 4 GB.