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chromium / external / github.com / DynamoRIO / dynamorio / refs/tags/cronbuild-7.0.17815
commit9170ab83aecc00b3388c0b8d7f53d29bb7193b7c[log] [tgz]
authorMazen Kharbutli <kharbutli@google.com>Thu Oct 11 00:43:41 2018
committerGitHub <noreply@github.com>Thu Oct 11 00:43:41 2018
tree513f4062b3688bf4a5da416e8dbc703f3e2b813c
parent79b1478ad705f1f18de165ddf29e2093d20d7344 [diff]
i#3203: Add a basic last-level cache (LLC) miss analyzer (#3205)

The analyzer first identifies load instructions that suffer from significant last-level cache (LLC) misses. The analyzer then analyzes the cache line address streams for each of those load instructions in search for patterns that can be used for SW prefetching. The analyzer here can only find simple strides. Analyses for more complex patterns can be added in the future.
A subsequent PR will connect the changes here to the front-end via new runtime options.

Issue #3203
5 files changed
tree: 513f4062b3688bf4a5da416e8dbc703f3e2b813c
  1. api/
  2. clients/
  3. core/
  4. ext/
  5. libutil/
  6. make/
  7. suite/
  8. third_party/
  9. tools/
  10. .appveyor.yml
  11. .clang-format
  12. .travis.yml
  13. ACKNOWLEDGEMENTS
  14. CMakeLists.txt
  15. CONTRIBUTING.md
  16. CTestConfig.cmake
  17. License.txt
  18. README
  19. README.md
README.md

DynamoRIO

DynamoRIO logo

About DynamoRIO

DynamoRIO is a runtime code manipulation system that supports code transformations on any part of a program, while it executes. DynamoRIO exports an interface for building dynamic tools for a wide variety of uses: program analysis and understanding, profiling, instrumentation, optimization, translation, etc. Unlike many dynamic tool systems, DynamoRIO is not limited to insertion of callouts/trampolines and allows arbitrary modifications to application instructions via a powerful IA-32/AMD64/ARM/AArch64 instruction manipulation library. DynamoRIO provides efficient, transparent, and comprehensive manipulation of unmodified applications running on stock operating systems (Windows, Linux, or Android) and commodity IA-32, AMD64, ARM, and AArch64 hardware. Mac OSX support is in progress.

Existing DynamoRIO-based tools

Tools built on DynamoRIO and provided in our release package include:

  • The memory debugging tool Dr. Memory
  • The multi-process cache simulator and memory address trace collection and analysis platform drcachesim
  • The legacy processor emulator drcpusim
  • The “strace for Windows” tool drstrace
  • The code coverage tool drcov
  • The library tracing tool drltrace
  • The memory tracing tool memtrace
  • The basic block tracing tool bbbuf
  • The instruction counting tool inscount

Building your own custom tools

DynamoRIO‘s powerful API abstracts away the details of the underlying infrastructure and allows the tool builder to concentrate on analyzing or modifying the application’s runtime code stream. API documentation is included in the release package and can also be browsed online. Slides from our past tutorials are also available.

Downloading DynamoRIO

DynamoRIO is available free of charge as a binary package for both Windows and Linux. DynamoRIO's source code is available under a BSD license.

Obtaining Help

Use the discussion list to ask questions.

To report a bug, use the issue tracker.

See also the DynamoRIO home page: http://dynamorio.org/