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This project was upgraded with external_updater.
Usage: tools/external_updater/updater.sh update external/google-benchmark
For more info, check https://cs.android.com/android/platform/superproject/+/main:tools/external_updater/README.md
Test: TreeHugger
Change-Id: I99620b3dfaa6fe54a1a1ebe857e4affb449fc469
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It is now possible to build Mac wheels on native machines in Github
Actions, so ARM64 Mac wheels are now built and tested on M1 machines.
Also, the artifact up-/download was migrated to v4, which made it
necessary to upload wheels to unique artifact names, and then later
stitch them together again in a subsequent job.
The cross-platform Mac build injection in setup.py was removed,
since it is no longer necessary.
I relanded a monkey-patching of Bazel build files, this time for
MODULE.bazel. This is because `rules_python` does not allow running
as the root user, which is the case in cibuildwheel+Linux (happens
in a Docker container). Since I did not see a quick way of switching
to rootless containers, and did not want to hardcode the config change
(it can apparently cause cache misses and build failures), I inject the
"ignore_root_user_error" flag into the MODULE.bazel file when running
in cibuildwheel on Linux.
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This comes following the first BCR release of nanobind_bazel.
Feature-wise, nothing substantial has changed, except that the extensions
are stripped of debug info when built in release mode, which reduces
clutter in the symbol tables.
No stubgen yet, since nanobind v2 has not been released yet.
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This is similar to the addition in https://github.com/google/googletest/commit/8604c4adac40573f806cfadae44e22f8dfaf212a#diff-eb8e49bdf5e9aafb996777a4f4302ad1efd281222bf3202eb9b77ce47496c345
that added pkg-config support in GTest. Without this, users
need to manually find the library containing `main()`.
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Adjusted the GetSysctl call in sysinfo.cc to ensure the frequency
value is returned as a double rather than an integer. This helps
maintain consistency and clarity in the codebase.
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COMPILER_IBMXL identifies the Clang based IBM XL compiler (xlclang) on z/OS. This compiler is obsolete and replaced by the Open XL compiler, so the macro is no longer needed and the existing code would lead to incorrect asm syntax for Open XL.
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`AnalyzeTemporaryDtors` option is no longer recognized by clang-tidy-18,
and that renders the whole config invalid and completely ignored... ???
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`read_bytes` is `ssize_t` (and we know it's non-negative),
we need to explicitly cast it to `size_t`.
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* Add a bzlmod Python bindings build
Uses the newly started `@nanobind_bazel` project to build nanobind
extensions. This means that we can drop all in-tree custom build defs
and build files for nanobind and the C++ Python headers.
Additionally, the temporary WORKSPACE overwrite hack naturally goes away
due to the WORKSPACE system being obsolete.
* Bump ruff -> v0.3.1, change ruff settings
The latest minor releases incurred some formatting and configuration
changes, this commit rolls them out.
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Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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* mitigate clang build warnings -Wconversion
* ensure we have warnings set everywhere and fix some
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Improve `UseCharPointer()` (thus, `DoNotOptimize()`) under MSVC LTO,
make it actually escape the pointer and prevent it from being optimized away.
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This reverts commit 1576991177ba97a4b2ff6c45950f1fa6e9aa678c.
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* Rewrite complexity_test to use (hardcoded) manual time
This test is fundamentally flaky, because it tried to read tea leafs,
and is inherently misbehaving in CI environments,
since there are unmitigated sources of noise.
That being said, the computed Big-O also depends on the `--benchmark_min_time=`
Fixes https://github.com/google/benchmark/issues/272
* Correctly compute Big-O for manual timings. Fixes #1758.
* complexity_test: do more stuff in empty loop
* Make all empty loops be a bit longer empty
Looks like on windows, some of these tests still fail,
i guess clock precision is too small.
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Defines a wrapper function, CheckNumCPUs, which enforces that GetNumCPUs
never returns fewer than one CPU. There is no reasonable way to
continue if we are unable to identify the number of CPUs.
Signed-off-by: Sam James <sam@gentoo.org>
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* Add support for Alpha architecture
As documented, the real cycle counter is unsafe to use here, because it
is a 32-bit integer which wraps every ~4s. Use gettimeofday instead,
which has a limitation of a low-precision real-time-clock (~1ms), but no
wrapping. Passes test suite.
Support parsing /proc/cpuinfo on Alpha
tabular_test: add a missing DoNotOptimize call
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* `complexity_test`: deflake, same as https://github.com/google/benchmark/issues/272
As it can be seen in e.g. https://github.com/google/benchmark/actions/runs/7711328637/job/21016492361
We may get `65: BM_Complexity_O1_BigO 0.00 N^2 0.00 N^2 `
* `user_counters_tabular_test`: deflake
We were still getting zero times there. Perhaps this is better?
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`BENCHMARK_TEMPLATE` (#1747)
Test coverage isn't great, but not worse than the existing one.
You'd think `BENCHMARK_CAPTURE` would suffice,
but you can't pass `func<targs>` to it (due to the `<` and `>`),
and when passing `(func<targs>)` we get issues with brackets.
So i'm not sure if we can fully avoid this helper.
That being said, if there is only a single template argument,
`BENCHMARK_CAPTURE()` works fine if we avoid using function name.
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* set library version in bazel
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* CMake: `get_git_version()`: just use `--dirty` flag of `git describe`
* CMake: move version normalization out of `get_git_version()`
Mainly, i want `get_git_version()` to return true version,
not something sanitized.
* JSON reporter: store library version and schema version in `context`
* Tools: discard inputs with unexpected `json_schema_version`
* Extract version string into `GetBenchmarkVersiom()`
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Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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part of #1743
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Also fix a mypy error in `tools.gbench.util` - the condition behaves the
same as before, but in the new mypy version, the old condition results
in an unreachable code error for the final `return False` statement.
This is most likely a bug in mypy's reachability analysis, but the fix
is easy enough here to circumvent it.
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C-style typecasting breaks the build due to `-Werror=old-style-cast` which should remain in place.
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BENCHMARK_ENABLE_LIBPFM is ON (#1705)
Fixes #1702
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Consistently flush Out and Err streams, otherwise they might not get flushed
and the output lost when using custom streams.
Fixes #1734.
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* tools/compare: when dumping json, pretty-print it
It's rather completely non-human-readable otherwise.
I can't imagine the filesize really matters,
and if it does, it should just be compressed later on.
* tools/compare: add failing test
* tools/compare: don't actually discard valid (but zero) `pvalue`
So, this is embarressing. For a very large number of repetitions,
we can end up with pvalue of a true zero, and it obviously compares false,
and we treat it as-if we failed to compute it...
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* Instead of directly comparing std::cout and GetOutputStream(), the underlying buffers are retreived via rdbuf(), and then compared.
* Instead of fflush(stdout), call out.flush().
Use out << FormatString() instead of vprintf
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Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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Const SetUp and TearDown were deprecated in https://github.com/google/benchmark/pull/285
Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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Follow up of #1725.
`defines` propagates to reverse dependencies, while `local_defines`
don't. If we use `defines` then there's risk of ODR violation:
Suppose a user have a cc_library foo that depends on bar and benchmark:
cc_library(name = "foo", deps = [":bar", "@com_github_google_benchmark//:benchmark"])
And bar has a class that has LFS-dependant ABI:
cc_library(name = "foo")
class Bar {
off_t member;
};
Bar would be compiled without LFS, but linked to foo when assuming LFS is enabled.
So we limit LFS to within the library only. benchmark does not have
LFS dependant public ABIs so it should be fine.
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Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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* Enable Large-file Support
This should fix https://github.com/google/benchmark/issues/1725
* Use whitespaces instead of tab in BUILD.bazel
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Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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Starting with Linux 6.6 [1], RDCYCLE is a privileged instruction on
RISC-V and can't be used directly from userland. There is a sysctl
option to change that as a transition period, but it will eventually
disappear.
Use RDTIME instead, which while less accurate has the advantage of being
synchronized between CPU (and thus monotonic) and of constant frequency.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc4c07c89aada16229084eeb93895c95b7eabaa3
Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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Co-authored-by: Iakov Sergeev <yahontu@gmail.com>
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The reason for this is that `setuptools-scm` installs a version relative
to the last release tag - if no tag is found, the default version is taken
to be v0.1.0. This was the case in GitHub Actions, where only the PR
branch is checked out.
Also unpins build system requirements in the `pyproject.toml`.
The sdist build system was changed to `build` from `python setup.py sdist`
for forward compatibility - `build` is superior in every way, and the
advertised solution by both cibuildwheel and PyPA itself.
Bump `actions/setup-python` to v5, `pypa/gh-action-pypi-publish` to v1.8.11,
and `docker/setup-qemu-action` to v3.
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* Run `pre-commit autoupdate`, fix stale pyproject.toml comments
* Set `--enable_bzlmod=false` for the moment
Until the newer nanobind tags are pushed to the BCR, it's best to disable
bzlmod for the bindings, because the Python CI breaks due to Bazel 7
enabling bzlmod by default.
* Remove E203 ignore, add linebreaks to semantically group ruff options
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Bumps `rules_foreign_cc` to v0.10.1 (October 2023), `bazel_skylib` to
v1.5.0 (November 2023), `rules_python` to v0.27.1 (December 2023).
Also syncs GoogleTest to v1.12.1 (the last C++11 supporting version) to
be the same as in MODULE.bazel.
Since the latest `rules_python` changed its setup calling convention,
that is updated also in the WORKSPACE file.
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This method was the culprit for the recent editable install breakage,
since it just tries to copy the generated extension file without checking
its existence.
Since the `BazelExtension` uses a non-standard location to store the
build artifacts, calling the copy method fails the build since the
extension is not found in the expected location.
But, since we already copy the file into the source tree as part of the
`BazelExtension.bazel_build` method, it's fine - the extension appears
in the right place, and the egg info is generated correctly as well.
This method also does not affect the general install, so it solves the
editable problem without regressing the fixed install.
Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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There is no bug here, but it gave me a scare the other day.
It is not incorrect to use `IterationCount` here,
since it's just an `int64_t` either way,
but it's wildly confusing. Let's not do that.
Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
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For some reason, editable pip installs are now broken, which means that
they will break the pre-commit workflow due to the `pip install -e .`
instruction.
Since the normal install is unaffected, we can just drop the `-e` switch.
It does not matter which mode is used, since the environment is only
used for linting.
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