The latest update to NVIDIA Nsight Systems - a triage and performance analysis tool designed to track GPU workloads to their CPU origins within a system-wide view. These features help you analyze your applications’ GPU utilization, graphic and compute API activity, and OS runtime operations. This helps optimize your application to perform and scale efficiently across any quantity or size of CPUs and GPUs—from workstations to supercomputers.—is now available for download. Nsight Systems 2026.2.1 introduces several improvements aimed to enhance the profiling experience.
2026.2.1 Highlights
New
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Amazon S3 and compatible API Trace
- Trace S3 access APIs in these libraries: AWS Common Runtime S3 client, Boto3, S3TorchConnector, and TensorFlow I/O
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GitHub catalog for 3rd party Nsight Systems Plugins
- Third partyvendors, can install plugin manifests into a predefined system-wide location on Linux and Windows
- Environment variable NSYS_PLUGIN_SEARCH_DIRS is added to allow arbitrary search paths
- See Nsight Systems Plugins
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NVTX support for Rust
- The NVTX github repository now includes Rust bindings for all classic v3 APIs
Improvements
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PyTorch
- Annotate optimized graphs generated by torch.compile including CUDA graphs
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NCCL
- Copy engine collectives support (with NCCL 2.29)
- Proxy network operations support
- Correlation of p2p operations
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CUDA
- MPS MLOPart (Memory Locality Optimized Partition) devices trace
- Green context resource allocations (TPC & work queue) visualization in the timeline and stats system
- CUDA Graph trace support for node-level tracing of device-launched graphs when hardware trace is enabled
- NVTX projection support for CUDA Graphs constructed before profiling start
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Vulkan
- Support VK_KHR_descriptor_heap and VK_EXT_mesh_shader extensions
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Reflex SDK
- Graphics pipeline stages visualization
- Present the cascade of frame generation stages
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- Updated Operator and Streamer on NGC with support for Docker and Kubernetes
Nsight Systems is part of the powerful debugging and profiling NVIDIA Nsight Tools Suite. A developer can start with Nsight Systems for an overall system view and avoid picking less efficient optimizations based on assumptions and false-positive indicators.
More information
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Leave a comment or question in NVIDIA Forums or visit the Nsight product page to download the latest release of Nsight Systems