Use hard links to create empty files.

This speeds up my test of running a bunch of genrules with 3000 inputs
by 2x on XFS. It might speed up ext4 a bit, but it definitely doesn't
make it slower. XFS and ext4 are about the same speed with this. Test at
<https://gist.github.com/bsilver8192/10527a862ce16bb7f79a>.

Refs #852

RELNOTES: Improved sandbox performance on XFS filesystems.

--
Change-Id: Ifabc0442f9f919d50cb5fe80a6445890c6d7f03e
Reviewed-on: https://bazel-review.googlesource.com/#/c/2890/1
MOS_MIGRATED_REVID=114693725
1 file changed
tree: fe24af16ac4037a52839d998187faebe8a964776
  1. examples/
  2. scripts/
  3. site/
  4. src/
  5. third_party/
  6. tools/
  7. .gitattributes
  8. .gitignore
  9. AUTHORS
  10. BUILD
  11. CHANGELOG.md
  12. compile.sh
  13. CONTRIBUTING.md
  14. CONTRIBUTORS
  15. LICENSE.txt
  16. README.md
  17. WORKSPACE
README.md

Bazel (Beta)

{Fast, Correct} - Choose two

Bazel is a build tool that builds code quickly and reliably. It is used to build the majority of Google‘s software, and thus it has been designed to handle build problems present in Google’s development environment, including:

  • A massive, shared code repository, in which all software is built from source. Bazel has been built for speed, using both caching and parallelism to achieve this. Bazel is critical to Google's ability to continue to scale its software development practices as the company grows.

  • An emphasis on automated testing and releases. Bazel has been built for correctness and reproducibility, meaning that a build performed on a continuous build machine or in a release pipeline will generate bitwise-identical outputs to those generated on a developer's machine.

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Find more background about Bazel in our FAQ.

Getting Started

About the Bazel project: