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change cache prefetch
Format
change cache prefetch [ max_prefetch_length=? ] [ max_intel_prefetch_length=? ] [ min_intel_prefetch_length=? ] [ intel_prefetch_length_factor=? ]
Parameters
Parameter |
Description |
Value |
|---|---|---|
| max_prefetch_length=? | Max prefetch length. | The value ranges from 1 to 32768. |
| max_intel_prefetch_length=? | Max intel prefetch length, and the value must be greater than or equal to that of the min_intel_prefetch_length. | The value ranges from 1 to 32768. |
| min_intel_prefetch_length=? | Min intel prefetch length, and the value must be smaller than or equal to that of the max_intel_prefetch_length. | The value ranges from 1 to 32768. |
| intel_prefetch_length_factor=? | Intel prefetch length factor, and the value must be greater than the ratio of Read Ahead identifier location to the prefetch length (the value of the ratio of Read Ahead identifier location to the prefetch length is 4 by default). | The value ranges from 1 to 32768. |
Example
Set max_prefetch_length to 16384.
developer:/>change cache prefetch max_prefetch_length=16384 WARNING: You are about to modify the cache prefetch parameter. The operation affects system performance. Suggestion: Before performing the operation, confirm that the cache prefetch parameter is correct. Have you read warning message carefully?(y/n)y Are you sure you really want to perform the operation?(y/n)y Command executed successfully.
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