View source for 18129422. SYSTEMS AND METHODS UTILIZING DAX MEMORY MANAGEMENT FOR TESTING CXL PROTOCOL ENABLED DEVICES simplified abstract (ADVANTEST CORPORATION)

=SYSTEMS AND METHODS UTILIZING DAX MEMORY MANAGEMENT FOR TESTING CXL PROTOCOL ENABLED DEVICES=


==Organization Name==

[[:Category:ADVANTEST CORPORATION|ADVANTEST CORPORATION]]


[[Category:ADVANTEST CORPORATION]]

==Inventor(s)==

[[:Category:Srdjan Malisic of San Jose CA (US)|Srdjan Malisic of San Jose CA (US)]][[Category:Srdjan Malisic of San Jose CA (US)]]

[[:Category:Chi Yuan of San Jose CA (US)|Chi Yuan of San Jose CA (US)]][[Category:Chi Yuan of San Jose CA (US)]]

==SYSTEMS AND METHODS UTILIZING DAX MEMORY MANAGEMENT FOR TESTING CXL PROTOCOL ENABLED DEVICES - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18129422 titled 'SYSTEMS AND METHODS UTILIZING DAX MEMORY MANAGEMENT FOR TESTING CXL PROTOCOL ENABLED DEVICES

==Simplified Explanation==

The patent application abstract describes an efficient and effective testing system for devices compliant with the compute express link (CXL) protocol. The system includes a user interface, a test board, and a tester with a direct access device (DAX) interface to prevent corruption of devices under test (DUTs).

* The testing system includes a user interface for user interaction, a test board to communicate with multiple CXL protocol compliant DUTs, and a tester with a DAX interface to direct testing and prevent corruption of DUTs.
* The tester isolates testing of individual CXL enabled DUTs to avoid interference and corruption, and prevents inappropriate writing over the DUT's memory.
* Each DUT is located in a separate per-device space in a Linux operating system, rather than an extension of memory space, to ensure isolation and security.
* The DAX interface creates a unique DAX instance for each DUT in the testing system.

== Potential Applications ==
This technology can be applied in industries where testing of devices compliant with the CXL protocol is required, such as semiconductor manufacturing, data centers, and high-performance computing.

== Problems Solved ==
This technology solves the problem of preventing corruption and interference during testing of CXL protocol compliant devices, ensuring accurate and reliable results.

== Benefits ==
The benefits of this technology include improved testing efficiency, increased reliability of test results, and enhanced security for devices under test.

== Potential Commercial Applications ==
Potential commercial applications of this technology include semiconductor testing equipment, data center testing systems, and high-performance computing testing solutions.

== Possible Prior Art ==
One possible prior art in this field is the use of direct access devices in testing systems to prevent corruption and interference during testing processes.


==Original Abstract Submitted==

Efficient and effective testing systems and methods are presented. In one embodiment, a test system includes: a user interface configured to enable user interaction with the system; a test board configured to communicatively couple with a plurality of devices under test (DUTs), wherein the DUTs are compute express link (CXL) protocol compliant; and a tester configured to direct testing of the plurality of DUTs, wherein the tester includes a direct access device (DAX) interface that prevents corruption of DUTs. In one exemplary implementation, the tester isolates testing of a particular CXL enabled DUT from undesirable interference and corruption. The tester can prevent inappropriate writing over the DUT's memory. The DUTs reside in the separate per-device space of a Linux operating system rather than an extension of memory space. One of the plurality of DUTs can be a CXL type  memory expander device. In one exemplary implementation, the direct access device (DAX) interface creates a unique DAX instance for each individual DUT included in the plurality of DUTs



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