ROCm Optiq (Beta) release history

ROCm Optiq (Beta) release history#

2026-05-19

8 min read time

Applies to Linux and Windows

Version

Release date

Beta 0.4.0

May 19, 2026

Beta 0.3.0

March 26, 2026

Beta 0.2.0

February 11, 2026

Beta 0.1.0

December 10, 2025

ROCm Optiq (Beta) 0.4.0#

Added#

New visualization features for analyzing data include:

  • Summary View – Speed of Light: Provides an aggregated, system-level summary of key performance and hardware utilization metrics across all kernels, showing utilization relative to architectural peak capabilities. The Percent-of-Peak values help quickly identify whether the workload is limited.

  • Kernel Details – Kernel Selection Table: Added a bar chart visualization of metric values and a tooltip that displays kernels’ full names.

  • Baseline Comparison: Enables you to compare two workload measurements (baseline vs. target) side-by-side in a unified table. It helps to quickly spot regressions, improvements, and behavior changes. It highlights per-metric deltas (including percentage change) to make the performance impact easy to quantify.

  • Added support for ROCm compute profiler’s database schema 1.3 and related performance improvements.

  • Presets: Save and recall pinned metric configurations for Table View and Baseline Comparison.

  • New context menu to add metrics to Kernel Selection Table from Table View.

  • Configurable delta-threshold control for Baseline Comparison.

Other new features:

  • Data clean-up: Enables the removal of metadata added by ROCm Optiq in a database file.

  • Command-line interface support.

  • OpenGL backend as a fallback when Vulkan is unavailable; optional software rendering path; command-line option to force a specific graphics backend.

  • New settings panel allowing keyboard shortcuts to be customized.

Changed#

Changes in viewing analysis data include:

  • Roofline charts for Summary View and Kernel Details: The legend can be repositioned; aspect ratio follows the window; multi-workload chart fixes and top-kernels presentation updates.

  • Kernel Details updates: Added mini-graphs in cells, pinned title/header improvements, and a global toggle for inline charts. Added a tooltip to display clipped names and adjusted the name-column sizing to free up space for metrics.

Changes in viewing trace data include:

  • Topology View and Timeline:

    • Enhanced System Topology tree for better representation of hardware and software topologies.

    • Toggle on device nodes to show or hide all tracks under that device.

Navigation and inspection:

  • Use Go To Event in tables and the Flow Data panel to go to a specific event. Double-click the event, or click Go To Event from the right-click context menu, to open the event on the timeline with vertical track centering and highlighted feedback.

  • Highlight-on-navigate with a dedicated event path using a pulsing indicator.

  • Callstack experience improvements.

ROCm Optiq (Beta) 0.3.0#

Added#

ROCm Optiq for visualizing ROCm Compute Profiler’s data. New features include:

  • Summary View: Shows a high-level overview of the captured data.

    • Table: lists the top 10 longest-running kernels sorted by Total Execution Time.

    • Charts: Plot duration and invocation statistics across kernels.

    • Roofline Chart: plots kernel performance against empirical hardware ceilings to reveal the dominant performance bottleneck for all kernels.

  • Kernel Details: displays details of each kernel.

    • Kernel Selection Table: Lists kernels with GPU metrics. Use Add Metric to append additional GPU metric columns. Per-column search box accepts names or metric expressions (for example, metric > threshold). Click Apply Filters to execute; combine multiple filters to narrow the analysis.

    • Memory Chart: Shows memory transactions and throughput per cache hierarchy level for the selected kernel.

    • System Speed-of-Light: Displays key kernel-level performance metrics with unit, average, peak, and percentage of peak values.

    • Kernel Roofline Chart: Shows a kernel-specific roofline analysis to determine whether a kernel is compute-bound or memory-bound. Click the gear icon to access customization options.

  • Table View: provides a complete list of available metrics for the selected kernel.

  • Workload Details: Provides contextual information about the workload.

Changed#

Changes in ROCm Optiq for visualizing ROCm System Profiler traces:

  • System Topology tree was restructured to show hardware and software topologies.

  • Memory allocation activity tracks are now displayed in Timeline and System Topology Views.

  • RPD files populate Topology.

  • Multinode support: Time normalization for multi-node configurations.

Known issues#

Metrics that reference None return N/A#

If a metric expression contains None, ROCm Compute Profiler may ignore the metric value even when it isn’t None. As a result, ROCm-Optiq displays N/A for affected metrics.

  • System Speed of Light (0200)

    • VALU Active Threads

    • LDS Bank Conflicts/Access

    • vL1D Cache Hit Rate

    • L2 Cache Hit Rate

    • L2-Fabric Read Latency

    • L2-Fabric Write Latency

    • sL1D Cache Hit Rate

    • L1I Fetch Latency

  • Memory Chart (0300)

    • LDS Latency

    • VL1 Hit

    • VL1 Lat

    • VL1 Coalesce

    • VL1 Stall

    • sL1D Hit

    • sL1D Lat

    • IL1 Lat

    • L2 Rd Lat

    • L2 Wr Lat

  • Command Processor CPC/CPF (0500)

    • CPF Utilization

    • CPF Stall

    • CPF-L2 Utilization

    • CPF-L2 Stall

    • CPF-UTCL1 Stall

    • CPC SYNC FIFO Full Rate

    • CPC CANE Stall Rate

    • CPC ADC Utilization

    • CPC Utilization

    • CPC Stall Rate

    • CPC Packet Decoding Utilization

    • CPC-Workgroup Manager Utilization

    • CPC-L2 Utilization

    • CPC-UTCL1 Stall

    • CPC-UTCL2 Utilization

  • Workgroup Manager SPI (0600)

    • VGPR Writes

    • SGPR Writes

    • Not-scheduled Rate (Workgroup Manager)

    • Not-scheduled Rate (Scheduler-Pipe)

    • Scheduler-Pipe FIFO Full Rate

    • Scheduler-Pipe Stall Rate

    • Scratch Stall Rate

  • Compute Units Compute Pipeline (1100)

    • VALU Active Threads

    • MFMA Instruction Cycles

    • VMEM Latency

    • SMEM Latency

  • Local Data Share LDS (1200)

    • Bank Conflict Rate

    • LDS Latency

    • Bank Conflicts/Access

  • Scalar L1 Data Cache (1400)

    • Cache Hit Rate

  • Vector L1 Data Cache (1600)

    • Hit rate

    • Utilization

    • Coalescing

    • Stalled on L2 Data

    • Stalled on L2 Req

    • Stalled on Address

    • Stalled on Data

    • Stalled on Latency FIFO

    • Stalled on Request FIFO

    • Stalled on Read Return

    • Tag RAM Stall (Read)

    • Tag RAM Stall (Write)

    • Tag RAM Stall (Atomic)

    • Cache Hit Rate

    • Hit Ratio

  • L2 Cache (1700)

    • HBM Read Traffic

    • Remote Read Traffic

    • Uncached Read Traffic

    • HBM Write and Atomic Traffic

    • Remote Write and Atomic Traffic

    • Atomic Traffic

    • Uncached Write and Atomic Traffic

    • Read Latency

    • Write and Atomic Latency

    • Atomic Latency

    • Read Stall

    • Write Stall

    • Cache Hit

    • Read - PCIe Stall

    • Read - Infinity Fabric Stall

    • Read - HBM Stall

    • Write - PCIe Stall

    • Write - Infinity Fabric Stall

    • Write - HBM Stall

    • Write - Credit Starvation

workload_name is missing in sysinfo.csv when using --output-directory#

When you profile with the --output-directory option, the workload_name column in sysinfo.csv might be empty. This can prevent views in the ROCm Compute Profiler analysis database from joining tables based on workload_name, which makes system information unavailable.

ROCm Optiq (Beta) 0.2.0#

Added#

  • Summary View: Displays the top ten kernels by execution time using pie charts, bar charts, or tables.

  • Minimap: Provides a compact overview of event density and counter values across the entire trace, enabling rapid navigation of large datasets.

Changed#

  • Timeline View: Improved navigation and selection. Added context menu option to create a time range filter from a selected event or events.

  • Advanced Details Panel: Aggregate by Column drop-down groups the results by the selected column. Options to size columns to fit in Event Table and Sample Table. Event Details now shows the function call’s arguments, if available.

  • Time Range Filtering: Improved time range selection.

  • Histogram: Shows event density in two display modes: “Normalization: All Tracks” and “Normalization: Visible Tracks”.

  • Multi-node: Multi-node data and a new multi-database yaml file format are supported.

ROCm Optiq (Beta) 0.1.0#

Initial release of ROCm Optiq (Beta).

Added#

  • System Topology View: Displays a hierarchical representation of the hardware or system components, such as nodes, processes, as well as the GPU queues, memory operations, threads, and more that belong to them.

  • Timeline View: Shows CPU and GPU activities, events, and performance metrics in chronological order for a detailed temporal analysis. ROCm Optiq allows you to zoom, filter, and bookmark data for fine-grained inspection. You can correlate GPU workloads with in-application CPU events and performance with hardware resource usage, enabling easy identification and remediation of performance blockers.

  • Advanced Details Panel: Provides an in-depth view of profiling data, enabling you to analyze performance metrics and event-specific information. It offers SQL-like filters and group-by operations.

  • Histogram: Shows the event density across all visible tracks and highlights the zoomed-in region to quickly identify hotspots.

  • Time Range Filtering: Select a specific time interval to filter events and counter samples for focused analysis.

  • Event Search: Quickly locate target events.

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