xxviii
We introduce tools that profile the server and applications to better understand CPU,
memory, and disk IO access patterns. Using this knowledge, we show how applications
can be modified to take full advantage of persistence using the Persistent Memory
Development Kit (PMDK).
A Future Reference
The book content has been written to provide value for many years. Industry
specification such as ACPI, UEFI, and the SNIA non-volatile programming model will,
unless otherwise stated by the specification, remain backward compatible as new
versions are released. If new form factors are introduced, the approach to programming
remains the same. We do not limit ourselves to one specific persistent memory vendor
or implementation. In places where it is necessary to describe vendor-specific features
or implementations, we specifically call this out as it may change between vendors or
between product generations. We encourage you to read the vendor documentation for
the persistent memory product to learn more.
Developers using the Persistent Memory Development Kit (PMDK) will retain a stable
API interface. PMDK will deliver new features and performance improvements with each
major release. It will evolve with new persistent memory products, CPU instructions,
platform designs, industry specifications, and operating system feature support.
Source Code Examples
Concepts and source code samples within this book adhere to the vendor neutral
SNIA non-volatile memory programming model. SNIA which is the Storage
Networking Industry Association is a non-profit global organization dedicated to
developing standards and education programs to advance storage and information
technology. The model was designed, developed, and is maintained by the SNIA NVM
Technical Working Group (TWG) which includes many leading operating system,
hardware, and server vendors. You can join this group or find information at https://
www.snia.org/forums/sssi/nvmp.
PrefaCe
We introduce tools that profile the server and applications to better understand CPU,
memory, and disk IO access patterns. Using this knowledge, we show how applications
can be modified to take full advantage of persistence using the Persistent Memory
Development Kit (PMDK).
A Future Reference
The book content has been written to provide value for many years. Industry
specification such as ACPI, UEFI, and the SNIA non-volatile programming model will,
unless otherwise stated by the specification, remain backward compatible as new
versions are released. If new form factors are introduced, the approach to programming
remains the same. We do not limit ourselves to one specific persistent memory vendor
or implementation. In places where it is necessary to describe vendor-specific features
or implementations, we specifically call this out as it may change between vendors or
between product generations. We encourage you to read the vendor documentation for
the persistent memory product to learn more.
Developers using the Persistent Memory Development Kit (PMDK) will retain a stable
API interface. PMDK will deliver new features and performance improvements with each
major release. It will evolve with new persistent memory products, CPU instructions,
platform designs, industry specifications, and operating system feature support.
Source Code Examples
Concepts and source code samples within this book adhere to the vendor neutral
SNIA non-volatile memory programming model. SNIA which is the Storage
Networking Industry Association is a non-profit global organization dedicated to
developing standards and education programs to advance storage and information
technology. The model was designed, developed, and is maintained by the SNIA NVM
Technical Working Group (TWG) which includes many leading operating system,
hardware, and server vendors. You can join this group or find information at https://
www.snia.org/forums/sssi/nvmp.
PrefaCe