tikv: update auto compaction config (#21656) (#21725)

releases/release-8.5.3.md

@@ -13,7 +13,7 @@ Quick access: [Quick start](https://docs.pingcap.com/tidb/v8.5/quick-start-with-
 
 ## Compatibility changes
 
-- Add the following system variables for internal use by the [Cost Model](/cost-model.md). It is **NOT** recommended to modify these variables: [`tidb_opt_hash_agg_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_hash_agg_cost_factor-new-in-v853-and-v900), [`tidb_opt_hash_join_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_hash_join_cost_factor-new-in-v853-and-v900), [`tidb_opt_index_join_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_join_cost_factor-new-in-v853-and-v900), [`tidb_opt_index_lookup_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_lookup_cost_factor-new-in-v853-and-v900), [`tidb_opt_index_merge_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_merge_cost_factor-new-in-v853-and-v900), [`tidb_opt_index_reader_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_reader_cost_factor-new-in-v853-and-v900), [`tidb_opt_index_scan_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_scan_cost_factor-new-in-v853-and-v900), [`tidb_opt_limit_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_limit_cost_factor-new-in-v853-and-v900), [`tidb_opt_merge_join_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_merge_join_cost_factor-new-in-v853-and-v900), [`tidb_opt_sort_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_sort_cost_factor-new-in-v853-and-v900), [`tidb_opt_stream_agg_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_stream_agg_cost_factor-new-in-v853-and-v900), [`tidb_opt_table_full_scan_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_full_scan_cost_factor-new-in-v853-and-v900), [`tidb_opt_table_range_scan_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_range_scan_cost_factor-new-in-v853-and-v900), [`tidb_opt_table_reader_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_reader_cost_factor-new-in-v853-and-v900), [`tidb_opt_table_rowid_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_rowid_cost_factor-new-in-v853-and-v900), [`tidb_opt_table_tiflash_scan_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_tiflash_scan_cost_factor-new-in-v853-and-v900), and [`tidb_opt_topn_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_topn_cost_factor-new-in-v853-and-v900) [#60357](https://github.com/pingcap/tidb/issues/60357) @[terry1purcell](https://github.com/terry1purcell)
+- Add the following system variables for internal use by the [Cost Model](/cost-model.md). It is **NOT** recommended to modify these variables: [`tidb_opt_hash_agg_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_hash_agg_cost_factor-new-in-v853), [`tidb_opt_hash_join_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_hash_join_cost_factor-new-in-v853), [`tidb_opt_index_join_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_join_cost_factor-new-in-v853), [`tidb_opt_index_lookup_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_lookup_cost_factor-new-in-v853), [`tidb_opt_index_merge_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_merge_cost_factor-new-in-v853), [`tidb_opt_index_reader_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_reader_cost_factor-new-in-v853), [`tidb_opt_index_scan_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_index_scan_cost_factor-new-in-v853), [`tidb_opt_limit_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_limit_cost_factor-new-in-v853), [`tidb_opt_merge_join_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_merge_join_cost_factor-new-in-v853), [`tidb_opt_sort_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_sort_cost_factor-new-in-v853), [`tidb_opt_stream_agg_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_stream_agg_cost_factor-new-in-v853), [`tidb_opt_table_full_scan_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_full_scan_cost_factor-new-in-v853), [`tidb_opt_table_range_scan_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_range_scan_cost_factor-new-in-v853), [`tidb_opt_table_reader_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_reader_cost_factor-new-in-v853), [`tidb_opt_table_rowid_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_rowid_cost_factor-new-in-v853), [`tidb_opt_table_tiflash_scan_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_table_tiflash_scan_cost_factor-new-in-v853), and [`tidb_opt_topn_cost_factor`](https://docs.pingcap.com/tidb/v8.5/system-variables/#tidb_opt_topn_cost_factor-new-in-v853) [#60357](https://github.com/pingcap/tidb/issues/60357) @[terry1purcell](https://github.com/terry1purcell)
 - Reintroduce the [telemetry](https://docs.pingcap.com/tidb/v8.5/telemetry) feature. However, it only logs telemetry-related information locally and no longer sends data to PingCAP over the network [#61766](https://github.com/pingcap/tidb/issues/61766) @[Defined2014](https://github.com/Defined2014)
 
 ## Improvements