Nagaraj, Sriraksha 87badfbd15 [rocprofv3] signal handler fix (#332)
* rocprofv3: LD_PRELOAD for signal and sigaction

- wrappers around `signal` and `sigaction` to prevent applications which install signal handlers to replace the rocprofv3 signal handlers
- minor tweaks to buffer sizes (use page_size instead of
KiB)

* [DO NOT COMMIT] extra logging

* Switch git submodule url for perfetto

- use GitHub URL as this is more accessible

* Update ring_buffer<Tp>

- account for alignment padding

* Update buffered_output

- track number of bytes stored
- add nullptr checks

* Update tmp_file_buffer

- track number of bytes
- read_tmp_file does not create tmp file if it does not already exist

* Update tmp_file

- add exists member function for checking whether temporary file already exists
- tweak remove() implementation

* Update config.hpp

- add option to enable/disable signal handlers
- add option for minimum_output_bytes

* Make signal, sigaction functions visible

* rocprofv3 tool updates

- chained signals
- override the signal handler(s) installed by the application
- improve cleanup of temporary files
- support minimum output bytes

* Add commandline support

* fixing test

* minor fix

* minor fix

* fix clang issue

* fix

* Adding docs

* review comments

* review changes

* review

* YUV pulldown additions to rocdecode

* More rocdecode changes

---------

Co-authored-by: Jonathan R. Madsen <jonathanrmadsen@gmail.com>
Co-authored-by: Jonathan R. Madsen <Jonathan.Madsen@amd.com>
Co-authored-by: Benjamin Welton <bewelton@amd.com>
2025-04-17 21:10:52 -07:00
2025-04-01 09:52:55 -07:00
2023-08-24 19:19:48 -05:00
2025-02-04 04:05:38 -06:00
2025-01-22 11:34:21 -06:00
2025-01-22 19:11:20 -06:00
2025-02-04 04:05:38 -06:00
2025-03-26 02:12:03 -05:00

ROCprofiler-SDK: Application Profiling, Tracing, and Performance Analysis

Important

We are phasing out development and support for ROCTracer, ROCprofiler, rocprof, and rocprofv2 in favour of ROCprofiler-SDK and rocprofv3 in upcoming ROCm releases. Starting with the ROCm 6.4 release, only critical defect fixes will be addressed for older versions of the profiling tools and libraries. We encourage all users to upgrade to the latest version of the ROCprofiler-SDK library and the rocprofv3 tool to ensure continued support and access to new features. ROCprofiler SDK is still in beta today and will be production-ready by ROCm 6.5.

Please note that we anticipate the end of life for ROCprofiler V1/V2 and ROCTracer within nine months after the ROCm 6.5 release, aligning with the Q1 2026.

Overview

ROCProfiler-SDK is AMDs new and improved tooling infrastructure, providing a hardware-specific low-level performance analysis interface for profiling and tracing GPU compute applications. To see what's changed Click Here

Note

The published documentation is available at ROCprofiler-SDK documentation in an organized, easy-to-read format, with search and a table of contents. The documentation source files reside in the rocprofiler-sdk/source/docs folder of this repository. As with all ROCm projects, the documentation is open source. For more information on contributing to the documentation, see Contribute to ROCm documentation.

GPU Metrics

  • GPU hardware counters
  • Dispatch Counter Collection
  • Device Counter Collection
  • PC Sampling (Host Trap)

API Trace Support

  • HIP API tracing
  • HSA API tracing
  • Marker (ROCTx) tracing
  • Memory copy tracing
  • Memory allocation tracing
  • Page Migration Event tracing
  • Scratch Memory tracing
  • RCCL API tracing
  • rocDecode API tracing
  • rocJPEG API tracing

Parallelism API Support

  • HIP
  • HSA
  • MPI
  • Kokkos-Tools (KokkosP)
  • OpenMP-Tools (OMPT)

Tool Support

rocprofv3 is the command line tool built using the rocprofiler-sdk library and shipped with the ROCm stack. To see details on the command line options of rocprofv3, please see rocprofv3 user guide Click Here

Documentation

We make use of doxygen to generate API documentation automatically. The generated document can be found in the following path:

<ROCM_PATH>/share/html/rocprofiler-sdk

ROCM_PATH by default is /opt/rocm It can be set by the user in different locations if needed.

Build and Installation

git clone https://github.com/ROCm/rocprofiler-sdk.git rocprofiler-sdk-source
cmake                                         \
      -B rocprofiler-sdk-build                \
      -D ROCPROFILER_BUILD_TESTS=ON           \
      -D ROCPROFILER_BUILD_SAMPLES=ON         \
      -D CMAKE_INSTALL_PREFIX=/opt/rocm       \
       rocprofiler-sdk-source

cmake --build rocprofiler-sdk-build --target all --parallel 8

To install ROCprofiler, run:

cmake --build rocprofiler-sdk-build --target install

Please see the detailed section on build and installation here: Click Here

Support

Please report in the Github Issues OR send an email to dl.ROCm-Profiler.support@amd.com

Limitations

  • Individual XCC mode is not supported.

  • By default, PC sampling API is disabled. To use PC sampling. Setting the ROCPROFILER_PC_SAMPLING_BETA_ENABLED environment variable grants access to the PC Sampling experimental beta feature. This feature is still under development and may not be completely stable.

    • Risk Acknowledgment: By activating this environment variable, you acknowledge and accept the following potential risks:

      • Hardware Freeze: This beta feature could cause your hardware to freeze unexpectedly.
      • Need for Cold Restart: In the event of a hardware freeze, you may need to perform a cold restart (turning the hardware off and on) to restore normal operations. Please use this beta feature cautiously. It may affect your system's stability and performance. Proceed at your own risk.
    • At this point, We do not recommend stress-testing the beta implementation.

    • Correlation IDs provided by the PC sampling service are verified only for HIP API calls.

    • Timestamps in PC sampling records might not be 100% accurate.

    • Using PC sampling on multi-threaded applications might fail with HSA_STATUS_ERROR_EXCEPTION.Furthermore, if three or more threads launch operations to the same agent, and if PC sampling is enabled, the HSA_STATUS_ERROR_EXCEPTION might appear.

  • gfx10, gfx11 and gfx12 requires a stable power state for counter collection. This includes Radeon 7000 GPUs.

    # For device <N>. Use 'rocm-smi' or 'amd-smi monitor' to see device number.
    sudo amd-smi set -g <N> -l stable_std
    # After profiling, set power state back to 'auto'
    sudo amd-smi set -g <N> -l auto
    

    The gfx version can be found via amd-smi static --asic -g <N> in the TARGET_GRAPHICS_VERSION field:

    $ amd-smi static -a -g 2
    GPU: 2
        ASIC:
            MARKET_NAME: Navi 33 [Radeon Pro W7500]
            VENDOR_ID: 0x1002
            VENDOR_NAME: Advanced Micro Devices Inc. [AMD/ATI]
            SUBVENDOR_ID: 0x1002
            DEVICE_ID: 0x7489
            SUBSYSTEM_ID: 0x0e0d
            REV_ID: 0x00
            ASIC_SERIAL: N/A
            OAM_ID: N/A
            NUM_COMPUTE_UNITS: 28
            TARGET_GRAPHICS_VERSION: gfx1102
    

Warning

The latest mainline version of AQLprofile can be found at https://repo.radeon.com/rocm/misc/aqlprofile/. However, it's important to note that updates to the public AQLProfile may not occur as frequently as updates to the rocprofiler-sdk. This discrepancy could lead to a potential mismatch between the AQLprofile binary and the rocprofiler-sdk source.

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