Enhanced Parallelism: Four multi-threaded cores per
processor allow the 9300 series twice as many simultaneous
software threads as its predecessor. Enhanced thread-level
parallelism (TLP) improves performance and scalability for
heavily threaded software code, like databases. The processor
now supports thread switching between medium latency events to
help boost core utilization and throughput. Instruction-Level
Parallelism (ILP), the ability to process multiple instructions
on each software thread, has always been a strength of Itanium
and the EPIC architecture. This has been further enhanced by
improvements to the first-level Data Translation Lookaside
Buffer (DTLB) that helps reduce the number of misses and stall
cycles.
Improvements in Scalability and Headroom: Effective
communication channels within the processor are a key element to
utilization and to supporting memory and I/O intensive
applications. A major step forward has been made with the 9300
series by introducing the Intel® QuickPath Interconnect to the
Itanium processor family. This replaces the front-side bus with
a point-to-point architecture and provides peak
processor-processor and processor-to-I/O communications up to 96
GB/s, or up to 9x that of the previous generation. In larger
system designs solutions scale automatically since as more
processors are added, system bandwidth increases. The Intel
QuickPath Interconnect also provides a common chipset with
Intel® Xeon® 7500 processors building economies of scale across
both architectures. Two integrated memory controllers provide
peak bandwidth up to 34 GB/s, a 6x improvement from the previous
generation.
Better Power Efficiency: As power consumption is
increasingly important in today’s data centers, the 9300 series
provides better power and thermal management. An enhanced form
of Demand Based Switching (DBS) modulates both voltage and
frequency and Intel® Turbo Boost Technology automatically
increases settings when workloads are high, fine-tuning
performance versus power consumption as needed.
Dynamic Partitioning and Hot Plug Components:
Partitioning helps organizations maintain uninterrupted
operation in response to error events or scheduled maintenance
and also assists utilization and power efficiency by responding
to changing workloads. Physical (hard) partitions provide full
electrical isolation and boundaries can be dynamically changed
and resources managed without restarting the system or rebooting
the affected operating systems. OS partitions enable multiple
applications to run under a single OS while each appears to have
a dedicated OS. Virtual partitions are possible using Virtual
Machine Monitor (VMM) software available from some vendors or
ISVs. The Intel® Virtualization technology (Intel VT-i) has been
upgraded on the 9300 series to Intel VT-i2 for additional
hardware assistance and thereby improving performance by
reducing the amount of time running VMM emulation code and
minimizing the number of required transitions between the OS and
the VMM.
Improved Reliability, Availability, & Serviceability (RAS):
The 9300 series has been designed to handle the most
mission-critical IT environments in the world. Consolidation of
multiple applications per system further magnifies the potential
impact of system downtime. RAS capability is therefore paramount
and the 9300 series extends the mainframe-class RAS features
from previous Itanium generations. Advanced Machine Check
Architecture coordinates error handling across all levels,
greatly reducing the likelihood of data corruption and improving
the reliability of the system. Corrected Machine Check
Interrupts (CMCI) for platform related errors, new on the 9300
series, enables error reporting through the local processor
interface, which helps to localize errors faster and provide a
foundation for building predictive error solutions.
Below is a list of most processor, memory, and Intel
QuickPath Interconnect RAS features supported in the 9300
processor die itself.
Processor RAS Features:
-Error Avoidance, Detection, and Correction Across All Major
Core Structures using soft error(SE) hardened latches and
registers, error correcting code (ECC), parity, and Intel Cache
Safe technology -Processor Hot Plug
-Advanced Machine Check Architecture
Memory RAS Features:
-DRAM Protection
-Memory Scrubbing (Patrol & Demand)
-Memory Thermal Protection
-Memory Channel Protection
-Memory Migration and DIMM Sparing
-Memory Mirroring
-Memory Channel Hot Plug
Intel QuickPath Interconnect RAS Features:
-Error Detection and Correction
-Clock Failover and Link Self-Healing
-Hot Pluggable Interconnect Links
-Intelligent Error Management
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All rights reserved.
Itanium® is a trademark or registered trademark of Intel
Corporation
or its subsidiaries in the United States and other countries