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Analyzing Performance of Chip Multi-Threading (CMT) Servers (Doc ID 1343999.1)

Last updated on JANUARY 07, 2022

Applies to:

Solaris Operating System - Version 10 and later
Information in this document applies to any platform.


Chip Multi-threading refers to the family of processor technologies that allow a physical processor to simultaneously execute multiple threads of execution. It is the core of a processor that executes application instructions. A CMT physical processor can have multiple cores in it where each core is capable of running multiple threads (instructions from multiple streams). These hardware threads are seen by Solaris as a separate CPU.

Objective of this article is to describe features of  Chip Multi-threaded Processors and how to monitor performance of workload running on these type of processors.


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In this Document
 Chip Multi-Threading (MT)
 Why Chip Multi-Threading  
 Chip Multi-Threading Advantages
 Type of workloads suitable for CMT Processors
 How to make use of MT in Oracle Database
 Performance Monitoring on CMT Server
 Understanding Processor Utilization and Saturation
 CMT and SMT Differences
 T2 Processor Architecture
 Solaris is CMT Aware

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