Abstract: Techniques are provided for implementing an in-memory columnar data store that is configured to either grow or shrink in response to performance prediction data generated from database workload information. A system maintains allocations of volatile memory from a given memory area for a plurality of memory-consuming components in a database system. The system receives for each memory-consuming component, performance prediction data that contains performance predictions for a plurality of memory allocation sizes for the memory-consuming components. The system determines a target memory allocation for an in-memory columnar data store based on the performance predictions. The system determines an incrementally adjusted amount of memory for the in-memory columnar data store and causes the incrementally adjusted amount to be allocated to the in-memory columnar data store.

Abstract: A curable composition can comprise a polymerizable material including a monomer of Formula (1), with R being H or alkyl or alkylaryl, n being 1-4, m being 0-6, X1 being C1-C6 substituted or unsubstituted alkyl, X2 being CH3 or H, After forming a cured layer of the curable composition, the cured layer can have an excellent etch resistance.

Abstract: Apparatus responsive to digital video data features a video amplitude digital to analog converter for controlling the full scale outputs of other digital to analog converters for generating multi-level analog composite video signals. The digital to analog converter outputs are controlled and fine tuned to meet particular requirements. The implementation is based on a consistent ratio between the white, sync and black video levels of the composite signals, irrespective of the differences between the required white video levels.

Abstract: A system for providing control signals for raster scan displays includes a horizontal timing random access memory and a vertical state random access memory arranged in a presettable counter configuration containing multiple levels of information. This approach allows the generation of the control signals in a sychronized relationship using a common counter arrangement so as to obviate the need for repetitive circuitry and without compromising performance.