# Coprocessor Config

## Learn how to configure Coprocessor in TiKV.

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This document describes the configuration parameters related to Coprocessor.

### split-region-on-table

• Determines whether to split Region by table. It is recommended to use the feature only in the TiDB mode.
• Default value: true

### batch-split-limit

• The threshold of Region split in batches. Increasing this value speeds up Region split.
• Default value: 10
• Minimum value: 1

### region-max-size

• The maximum size of a Region. When the value is exceeded, the Region splits into many.
• Default value: 144MB
• Unit: KB|MB|GB

### region-split-size

• The size of the newly split Region. This value is an estimate.
• Default value: 96MB
• Unit: KB|MB|GB

### region-max-keys

• The maximum allowable number of keys in a Region. When this value is exceeded, the Region splits into many.
• Default value: 1440000

### region-split-keys

• The number of keys in the newly split Region. This value is an estimate.
• Default value: 960000