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Everything about ZIIP

In IBM System z9 and successor mainframes, the System z Integrated Information Processor (zIIP) is a special purpose processor. It was initially introduced to relieve the general mainframe central processors (CPs) of specific Db2 processing loads, but currently is used to offload other z/OS workloads as described below. The idea originated with previous special purpose processors, the zAAP, which offloads Java processing, and the IFL, which runs Linux and z/VM but not other IBM operating systems such as z/OS, DOS/VSE and TPF. A System z PU is "characterized" as one of these processor types, or as a CP, or SAP. These processors do not contain microcode or hardware features that accelerate their designated workloads. Instead, by relieving the general CP of particular workloads, they often lead to a higher workload throughput at reduced license fees. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: ZIIPA 5-minute orientation
  2. Pick up a classic book: ZiipThe most-reprinted book on the subject
  3. Read the landmark paper: DETERMINANTS OF EMPLOYMENT OF STUDENTS OF ZIIP AT UE IN WROCŁAW. PART 2Cited 0 times
  4. Go sideways: Z Application Assist ProcessorA closely related topic
  5. Go sideways: IBM ZA closely related topic

📖 Definitions

No dictionary entry for this exact phrase.

🗂️ The subject at a glance

  1. Support for zIIPs
  2. Use of zIIPs

🏆 Landmark papers (most cited)

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics