This section explains tuning of the buffer length for registry information (pd_registry_cache_size operand value).
- Information to be referenced
- See the following system activity statistical information provided by the statistics analysis utility:
- Registry cache hits count (# OF REGISTRY CACHE HIT)
- Number of registry information acquisition requests (# OF REGISTRY GET REQ)
- Tuning procedure
- Determine the registry cache hits rate using the following formula, and adjust the buffer length to achieve a hits rate of 100%.
- Registry cache hits rate (%) =
- (registry cache hits count
registry information collection requests count)
100
- Actions to be taken
- Increase the value of the pd_registry_cache_size operand.