Resources

Learn how to effectively reduce mainframe costs and discover strategies for tracking IBM software licensing metrics to minimize expenses.

In this blog, we demonstrate how to profile zHyperLink performance and usage by reviewing one mainframe site’s recent production implementation of zHyperLink for reads, for Db2.

CPU 'tuning' exercises often focus on unnecessary TCB switches. In this case, changes made that reduced TCB switch time saved a ton of CPU - up to 2,000 seconds.

This final blog in the mainframe cost reduction series will cover potential CPU reduction opportunities that produce benefits applicable to a specific address space or application.

This blog explores how a non-Db2 expert quickly identified latch contention arising from a Data Sharing Index Split as the root cause of a Db2 delay/slowdown.

This blog covers several CPU reduction areas, including, moving work outside the monthly peak R4HA interval, reducing zIIP overflow, reducing XCF volumes, and leveraging Db2 memory to reduce I/Os.

In this blog we examine before-and-after measurements of a recent zHyperWrite implementation for MQ logging in a large z/OS environment.

CPU optimization opportunities applicable across the infrastructure can often by implemented without the involvement of application teams and can benefit a significant portion (or all) of the work across the system.