Release Notes

Latest

PXL: Adaptive CXL memory allocation
- Enables automatic expansion into the I/O memory region to utilize the CXL memory area even on systems without a CXL DAX device (/dev/daxX.0).
PXL: Performance profiling & tracing infrastructure
- Adds the ability to collect and analyze detailed performance data during application execution.
xTOP:
- xTOP is a real-time profiler tool based on XPTI that provides interactive terminal monitoring (view mode) and application profiling with CSV export (run mode) for device performance analysis.
- Adds on-demand analysis commands for .xpti profile data — per-task breakdown, Map-level summary, Perfetto trace export, and one-click Perfetto UI visualization.
sdk_release
- Docs: Added memory test documentation and tutorial.
mu_lib
- MU_LIB: Added Cache Prefetch API.

PXL: Optimized installation process
- Reduces install time by removing unnecessary dependencies and simplifying submodule initialization.
PXL: Improved log output
- Changes MU message prefix from [host] to [mu] and displays sub-indices linearly.
mxdriver: Improved DMA submission handling
- Enhances timeout and interrupt handling during DMA command submission to improve system responsiveness.
mxdriver: Stronger concurrency control
- Reinforces concurrency management during DMA job processing.
Emulator: Ubuntu 24.04-based rootfs added
- Supports running the emulator on a newer Ubuntu environment.
sdk_release
- CI: Added memory_test to example test suite.
- SDK: Removed xkvstore and xmapreduce submodules from the SDK package.
- SDK: Updated installation scripts to exclude xkvstore and xmapreduce modules.

PXL: Fixed pxltrace installation failure
- Resolves an issue where the pxltrace tool failed to install.
PXL: Memory leak fix after Map completion
- Fixes a memory leak where statistics data was not properly cleaned up after Map operations.
PXL: Improved device initialization validation
- Adds defensive checks for invalid memory properties to prevent abnormal termination.
PXL: Host cache flush bug at boundary addresses
- Fixes an issue where Host cache flush did not work correctly at boundary addresses (this was addressed in v1.4.2).
mxdriver: Build fix for device_match_t type mismatch
- Fixes a compilation error caused by a device_match_t type mismatch due to kernel version changes.

We recommend using firmware compatible with SDK v1.4.3.
On systems without CXL support, adaptive memory allocation is automatically enabled to optimize performance.
The memory_test example requires MU compiler toolchain to build.
The memory_test runs with 192 GiB of memory and 3072 tasks by default (adjustable via CLI options).
The xkvstore and xmapreduce libraries are no longer included in the SDK.
Users who depend on these libraries should use alternative solutions or contact the development team.