Comments on: Mainframe Cost Reduction 101 BMC Software Tue, 03 Nov 2015 23:59:00 +0000 hourly 1 By: philguk Mon, 02 Nov 2015 14:03:00 +0000 As a “lifetime” (well it feels like a lifetime!) advocate of SQL tuning for DB2 workloads, it’s good to see I’ve been doing the right thing all along. Jays point #5 (Tune the work that runs during peak periods) is almost what every tuning class tells you – the only challenge has been identifying when the peak periods are FOR THE WORKLOAD as opposed for individual statements. To save cpu AND save money, it’s imperative that your SQL tuning efforts are targeted at SQL statements that are executed during your rolling four hour peak – and hence are contributing to your MLC charges