The value in the “count” column is the maximum number of bytes used in any ULCs, across all ULCs. This data can help you determine if ULC size is correctly configured.
Since Adaptive Server flushes the ULC when a transaction completes, any unused memory allocated to the ULCs is wasted. If the value in the “count” column is consistently less than the defined value for the user log cache size configuration parameter, reduce user log cache size to the value in the “count” column (but no smaller than 2048 bytes).
When “Max ULC Size” equals the user log cache size, check the number of flushes due to transactions that fill the user log cache (see “By full ULC”). If the number of times that logs were flushed due to a full ULC is more than 20%, consider increasing the user log cache size configuration parameter.
See the System Administration Guide.
