z/VSE Sorting Software – SyncSort for z/VSE

SyncSort for z/VSE is a high performance sort/merge/copy utility for IBM z/VSE and VSE/ESA operating systems. In benchmark tests against competitive products, SyncSort for z/VSE sorting software saved 30-40% of total CPU time, 25-35% of elapsed time, and 40-50% of SIOs. SyncSort for z/VSE:

• Reduces consumption of CPU and SIO resources
• Improves your overall system throughput
• Generates multiple, uniquely formatted output files in a single pass of the input file
• Can be invoked through JCL or through COBOL, PL/1, or Assembler language programs

SyncSort for z/VSE sorting software uses a proprietary facility called Dynamic Storage Manager (DSM). DSM leverages some of SyncSort’s innovations for VSE/ESA:

• A virtual library keeps the SyncSort program library in virtual memory, avoiding load and program fetch overhead as well as the use of SVA space.
• Virtual sortwork creates sortwork files in data space and accesses data at memory speed instead of the slower DASD speed, resulting in significant reductions in elapsed time and SIOs.
• The sort manager manages sortwork for multiple sorts in data space and chooses the best mix of media for sortwork based on sort characteristics and system conditions.